---
_id: '3256'
abstract:
- lang: eng
  text: We use a distortion to define the dual complex of a cubical subdivision of
    ℝ n as an n-dimensional subcomplex of the nerve of the set of n-cubes. Motivated
    by the topological analysis of high-dimensional digital image data, we consider
    such subdivisions defined by generalizations of quad- and oct-trees to n dimensions.
    Assuming the subdivision is balanced, we show that mapping each vertex to the
    center of the corresponding n-cube gives a geometric realization of the dual complex
    in ℝ n.
acknowledgement: This research is partially supported by the Defense Advanced Research
  Projects Agency (DARPA) under grants HR0011-05-1-0057 and HR0011-09-0065 as well
  as the National Science Foundation (NSF) under grant DBI-0820624.
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
citation:
  ama: Edelsbrunner H, Kerber M. Dual complexes of cubical subdivisions of ℝn. <i>Discrete
    &#38; Computational Geometry</i>. 2012;47(2):393-414. doi:<a href="https://doi.org/10.1007/s00454-011-9382-4">10.1007/s00454-011-9382-4</a>
  apa: Edelsbrunner, H., &#38; Kerber, M. (2012). Dual complexes of cubical subdivisions
    of ℝn. <i>Discrete &#38; Computational Geometry</i>. Springer. <a href="https://doi.org/10.1007/s00454-011-9382-4">https://doi.org/10.1007/s00454-011-9382-4</a>
  chicago: Edelsbrunner, Herbert, and Michael Kerber. “Dual Complexes of Cubical Subdivisions
    of ℝn.” <i>Discrete &#38; Computational Geometry</i>. Springer, 2012. <a href="https://doi.org/10.1007/s00454-011-9382-4">https://doi.org/10.1007/s00454-011-9382-4</a>.
  ieee: H. Edelsbrunner and M. Kerber, “Dual complexes of cubical subdivisions of
    ℝn,” <i>Discrete &#38; Computational Geometry</i>, vol. 47, no. 2. Springer, pp.
    393–414, 2012.
  ista: Edelsbrunner H, Kerber M. 2012. Dual complexes of cubical subdivisions of
    ℝn. Discrete &#38; Computational Geometry. 47(2), 393–414.
  mla: Edelsbrunner, Herbert, and Michael Kerber. “Dual Complexes of Cubical Subdivisions
    of ℝn.” <i>Discrete &#38; Computational Geometry</i>, vol. 47, no. 2, Springer,
    2012, pp. 393–414, doi:<a href="https://doi.org/10.1007/s00454-011-9382-4">10.1007/s00454-011-9382-4</a>.
  short: H. Edelsbrunner, M. Kerber, Discrete &#38; Computational Geometry 47 (2012)
    393–414.
date_created: 2018-12-11T12:02:17Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2021-01-12T07:42:10Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1007/s00454-011-9382-4
file:
- access_level: open_access
  checksum: 76486f3b2c9e7fd81342f3832ca387e7
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:08:15Z
  date_updated: 2020-07-14T12:46:05Z
  file_id: '4675'
  file_name: IST-2016-543-v1+1_2012-J-08-HierarchyCubeComplex.pdf
  file_size: 203636
  relation: main_file
file_date_updated: 2020-07-14T12:46:05Z
has_accepted_license: '1'
intvolume: '        47'
issue: '2'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Submitted Version
page: 393 - 414
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '3398'
pubrep_id: '543'
quality_controlled: '1'
scopus_import: 1
status: public
title: Dual complexes of cubical subdivisions of ℝn
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 47
year: '2012'
...
---
_id: '3265'
abstract:
- lang: eng
  text: We propose a mid-level statistical model for image segmentation that composes
    multiple figure-ground hypotheses (FG) obtained by applying constraints at different
    locations and scales, into larger interpretations (tilings) of the entire image.
    Inference is cast as optimization over sets of maximal cliques sampled from a
    graph connecting all non-overlapping figure-ground segment hypotheses. Potential
    functions over cliques combine unary, Gestalt-based figure qualities, and pairwise
    compatibilities among spatially neighboring segments, constrained by T-junctions
    and the boundary interface statistics of real scenes. Learning the model parameters
    is based on maximum likelihood, alternating between sampling image tilings and
    optimizing their potential function parameters. State of the art results are reported
    on the Berkeley and Stanford segmentation datasets, as well as VOC2009, where
    a 28% improvement was achieved.
article_number: '6126486'
author:
- first_name: Adrian
  full_name: Ion, Adrian
  id: 29F89302-F248-11E8-B48F-1D18A9856A87
  last_name: Ion
- first_name: Joao
  full_name: Carreira, Joao
  last_name: Carreira
- first_name: Cristian
  full_name: Sminchisescu, Cristian
  last_name: Sminchisescu
citation:
  ama: 'Ion A, Carreira J, Sminchisescu C. Image segmentation by figure-ground composition
    into maximal cliques. In: IEEE; 2012. doi:<a href="https://doi.org/10.1109/ICCV.2011.6126486">10.1109/ICCV.2011.6126486</a>'
  apa: 'Ion, A., Carreira, J., &#38; Sminchisescu, C. (2012). Image segmentation by
    figure-ground composition into maximal cliques. Presented at the ICCV: International
    Conference on Computer Vision, Barcelona, Spain: IEEE. <a href="https://doi.org/10.1109/ICCV.2011.6126486">https://doi.org/10.1109/ICCV.2011.6126486</a>'
  chicago: Ion, Adrian, Joao Carreira, and Cristian Sminchisescu. “Image Segmentation
    by Figure-Ground Composition into Maximal Cliques.” IEEE, 2012. <a href="https://doi.org/10.1109/ICCV.2011.6126486">https://doi.org/10.1109/ICCV.2011.6126486</a>.
  ieee: 'A. Ion, J. Carreira, and C. Sminchisescu, “Image segmentation by figure-ground
    composition into maximal cliques,” presented at the ICCV: International Conference
    on Computer Vision, Barcelona, Spain, 2012.'
  ista: 'Ion A, Carreira J, Sminchisescu C. 2012. Image segmentation by figure-ground
    composition into maximal cliques. ICCV: International Conference on Computer Vision,
    6126486.'
  mla: Ion, Adrian, et al. <i>Image Segmentation by Figure-Ground Composition into
    Maximal Cliques</i>. 6126486, IEEE, 2012, doi:<a href="https://doi.org/10.1109/ICCV.2011.6126486">10.1109/ICCV.2011.6126486</a>.
  short: A. Ion, J. Carreira, C. Sminchisescu, in:, IEEE, 2012.
conference:
  end_date: 2011-11-13
  location: Barcelona, Spain
  name: 'ICCV: International Conference on Computer Vision'
  start_date: 2011-11-06
date_created: 2018-12-11T12:02:21Z
date_published: 2012-01-12T00:00:00Z
date_updated: 2021-01-12T07:42:15Z
day: '12'
department:
- _id: HeEd
doi: 10.1109/ICCV.2011.6126486
language:
- iso: eng
month: '01'
oa_version: None
publication_status: published
publisher: IEEE
publist_id: '3382'
quality_controlled: '1'
status: public
title: Image segmentation by figure-ground composition into maximal cliques
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '3310'
abstract:
- lang: eng
  text: The theory of persistent homology opens up the possibility to reason about
    topological features of a space or a function quantitatively and in combinatorial
    terms. We refer to this new angle at a classical subject within algebraic topology
    as a point calculus, which we present for the family of interlevel sets of a real-valued
    function. Our account of the subject is expository, devoid of proofs, and written
    for non-experts in algebraic topology.
acknowledgement: Research by the third author is partially supported by the National
  Science Foundation (NSF) under grant DBI-0820624.
author:
- first_name: Paul
  full_name: Bendich, Paul
  id: 43F6EC54-F248-11E8-B48F-1D18A9856A87
  last_name: Bendich
- first_name: Sergio
  full_name: Cabello, Sergio
  last_name: Cabello
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: Bendich P, Cabello S, Edelsbrunner H. A point calculus for interlevel set homology.
    <i>Pattern Recognition Letters</i>. 2012;33(11):1436-1444. doi:<a href="https://doi.org/10.1016/j.patrec.2011.10.007">10.1016/j.patrec.2011.10.007</a>
  apa: Bendich, P., Cabello, S., &#38; Edelsbrunner, H. (2012). A point calculus for
    interlevel set homology. <i>Pattern Recognition Letters</i>. Elsevier. <a href="https://doi.org/10.1016/j.patrec.2011.10.007">https://doi.org/10.1016/j.patrec.2011.10.007</a>
  chicago: Bendich, Paul, Sergio Cabello, and Herbert Edelsbrunner. “A Point Calculus
    for Interlevel Set Homology.” <i>Pattern Recognition Letters</i>. Elsevier, 2012.
    <a href="https://doi.org/10.1016/j.patrec.2011.10.007">https://doi.org/10.1016/j.patrec.2011.10.007</a>.
  ieee: P. Bendich, S. Cabello, and H. Edelsbrunner, “A point calculus for interlevel
    set homology,” <i>Pattern Recognition Letters</i>, vol. 33, no. 11. Elsevier,
    pp. 1436–1444, 2012.
  ista: Bendich P, Cabello S, Edelsbrunner H. 2012. A point calculus for interlevel
    set homology. Pattern Recognition Letters. 33(11), 1436–1444.
  mla: Bendich, Paul, et al. “A Point Calculus for Interlevel Set Homology.” <i>Pattern
    Recognition Letters</i>, vol. 33, no. 11, Elsevier, 2012, pp. 1436–44, doi:<a
    href="https://doi.org/10.1016/j.patrec.2011.10.007">10.1016/j.patrec.2011.10.007</a>.
  short: P. Bendich, S. Cabello, H. Edelsbrunner, Pattern Recognition Letters 33 (2012)
    1436–1444.
date_created: 2018-12-11T12:02:36Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2021-01-12T07:42:34Z
day: '01'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1016/j.patrec.2011.10.007
file:
- access_level: open_access
  checksum: d65f79775b51258a604ca5ec741297cc
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:00Z
  date_updated: 2020-07-14T12:46:06Z
  file_id: '5116'
  file_name: IST-2016-542-v1+1_2012-J-01-Poinculus.pdf
  file_size: 280280
  relation: main_file
file_date_updated: 2020-07-14T12:46:06Z
has_accepted_license: '1'
intvolume: '        33'
issue: '11'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Submitted Version
page: 1436 - 1444
publication: Pattern Recognition Letters
publication_status: published
publisher: Elsevier
publist_id: '3330'
pubrep_id: '542'
quality_controlled: '1'
scopus_import: 1
status: public
title: A point calculus for interlevel set homology
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2012'
...
---
_id: '3331'
abstract:
- lang: eng
  text: Computing the topology of an algebraic plane curve C means computing a combinatorial
    graph that is isotopic to C and thus represents its topology in R2. We prove that,
    for a polynomial of degree n with integer coefficients bounded by 2ρ, the topology
    of the induced curve can be computed with  bit operations ( indicates that we
    omit logarithmic factors). Our analysis improves the previous best known complexity
    bounds by a factor of n2. The improvement is based on new techniques to compute
    and refine isolating intervals for the real roots of polynomials, and on the consequent
    amortized analysis of the critical fibers of the algebraic curve.
author:
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Michael
  full_name: Sagraloff, Michael
  last_name: Sagraloff
citation:
  ama: Kerber M, Sagraloff M. A worst case bound for topology computation of algebraic
    curves. <i> Journal of Symbolic Computation</i>. 2012;47(3):239-258. doi:<a href="https://doi.org/10.1016/j.jsc.2011.11.001">10.1016/j.jsc.2011.11.001</a>
  apa: Kerber, M., &#38; Sagraloff, M. (2012). A worst case bound for topology computation
    of algebraic curves. <i> Journal of Symbolic Computation</i>. Elsevier. <a href="https://doi.org/10.1016/j.jsc.2011.11.001">https://doi.org/10.1016/j.jsc.2011.11.001</a>
  chicago: Kerber, Michael, and Michael Sagraloff. “A Worst Case Bound for Topology
    Computation of Algebraic Curves.” <i> Journal of Symbolic Computation</i>. Elsevier,
    2012. <a href="https://doi.org/10.1016/j.jsc.2011.11.001">https://doi.org/10.1016/j.jsc.2011.11.001</a>.
  ieee: M. Kerber and M. Sagraloff, “A worst case bound for topology computation of
    algebraic curves,” <i> Journal of Symbolic Computation</i>, vol. 47, no. 3. Elsevier,
    pp. 239–258, 2012.
  ista: Kerber M, Sagraloff M. 2012. A worst case bound for topology computation of
    algebraic curves.  Journal of Symbolic Computation. 47(3), 239–258.
  mla: Kerber, Michael, and Michael Sagraloff. “A Worst Case Bound for Topology Computation
    of Algebraic Curves.” <i> Journal of Symbolic Computation</i>, vol. 47, no. 3,
    Elsevier, 2012, pp. 239–58, doi:<a href="https://doi.org/10.1016/j.jsc.2011.11.001">10.1016/j.jsc.2011.11.001</a>.
  short: M. Kerber, M. Sagraloff,  Journal of Symbolic Computation 47 (2012) 239–258.
date_created: 2018-12-11T12:02:43Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2021-01-12T07:42:43Z
day: '01'
department:
- _id: HeEd
doi: 10.1016/j.jsc.2011.11.001
intvolume: '        47'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1104.1510
month: '03'
oa: 1
oa_version: Preprint
page: 239 - 258
publication: ' Journal of Symbolic Computation'
publication_status: published
publisher: Elsevier
publist_id: '3303'
quality_controlled: '1'
scopus_import: 1
status: public
title: A worst case bound for topology computation of algebraic curves
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 47
year: '2012'
...
---
_id: '6588'
abstract:
- lang: eng
  text: First we note that the best polynomial approximation to vertical bar x vertical
    bar on the set, which consists of an interval on the positive half-axis and a
    point on the negative half-axis, can be given by means of the classical Chebyshev
    polynomials. Then we explore the cases when a solution of the related problem
    on two intervals can be given in elementary functions.
acknowledgement: "This work is supported by the Austrian Science Fund (FWF), Project
  P22025-N18.\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Florian
  full_name: Pausinger, Florian
  id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
  last_name: Pausinger
  orcid: 0000-0002-8379-3768
citation:
  ama: Pausinger F. Elementary solutions of the Bernstein problem on two intervals.
    <i>Journal of Mathematical Physics, Analysis, Geometry</i>. 2012;8(1):63-78.
  apa: Pausinger, F. (2012). Elementary solutions of the Bernstein problem on two
    intervals. <i>Journal of Mathematical Physics, Analysis, Geometry</i>. B. Verkin
    Institute for Low Temperature Physics and Engineering.
  chicago: Pausinger, Florian. “Elementary Solutions of the Bernstein Problem on Two
    Intervals.” <i>Journal of Mathematical Physics, Analysis, Geometry</i>. B. Verkin
    Institute for Low Temperature Physics and Engineering, 2012.
  ieee: F. Pausinger, “Elementary solutions of the Bernstein problem on two intervals,”
    <i>Journal of Mathematical Physics, Analysis, Geometry</i>, vol. 8, no. 1. B.
    Verkin Institute for Low Temperature Physics and Engineering, pp. 63–78, 2012.
  ista: Pausinger F. 2012. Elementary solutions of the Bernstein problem on two intervals.
    Journal of Mathematical Physics, Analysis, Geometry. 8(1), 63–78.
  mla: Pausinger, Florian. “Elementary Solutions of the Bernstein Problem on Two Intervals.”
    <i>Journal of Mathematical Physics, Analysis, Geometry</i>, vol. 8, no. 1, B.
    Verkin Institute for Low Temperature Physics and Engineering, 2012, pp. 63–78.
  short: F. Pausinger, Journal of Mathematical Physics, Analysis, Geometry 8 (2012)
    63–78.
date_created: 2019-06-27T08:16:56Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2023-10-16T09:41:31Z
day: '01'
department:
- _id: HeEd
external_id:
  isi:
  - '000301173600004'
intvolume: '         8'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://mi.mathnet.ru/eng/jmag525
month: '01'
oa: 1
oa_version: Published Version
page: 63-78
publication: Journal of Mathematical Physics, Analysis, Geometry
publication_identifier:
  issn:
  - 1812-9471
publication_status: published
publisher: B. Verkin Institute for Low Temperature Physics and Engineering
quality_controlled: '1'
scopus_import: '1'
status: public
title: Elementary solutions of the Bernstein problem on two intervals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2012'
...
---
_id: '3266'
abstract:
- lang: eng
  text: We present a joint image segmentation and labeling model (JSL) which, given
    a bag of figure-ground segment hypotheses extracted at multiple image locations
    and scales, constructs a joint probability distribution over both the compatible
    image interpretations (tilings or image segmentations) composed from those segments,
    and over their labeling into categories. The process of drawing samples from the
    joint distribution can be interpreted as first sampling tilings, modeled as maximal
    cliques, from a graph connecting spatially non-overlapping segments in the bag
    [1], followed by sampling labels for those segments, conditioned on the choice
    of a particular tiling. We learn the segmentation and labeling parameters jointly,
    based on Maximum Likelihood with a novel Incremental Saddle Point estimation procedure.
    The partition function over tilings and labelings is increasingly more accurately
    approximated by including incorrect configurations that a not-yet-competent model
    rates probable during learning. We show that the proposed methodologymatches the
    current state of the art in the Stanford dataset [2], as well as in VOC2010, where
    41.7% accuracy on the test set is achieved.
author:
- first_name: Adrian
  full_name: Ion, Adrian
  id: 29F89302-F248-11E8-B48F-1D18A9856A87
  last_name: Ion
- first_name: Joao
  full_name: Carreira, Joao
  last_name: Carreira
- first_name: Cristian
  full_name: Sminchisescu, Cristian
  last_name: Sminchisescu
citation:
  ama: 'Ion A, Carreira J, Sminchisescu C. Probabilistic joint image segmentation
    and labeling. In: <i>NIPS Proceedings</i>. Vol 24. Neural Information Processing
    Systems Foundation; 2011:1827-1835.'
  apa: 'Ion, A., Carreira, J., &#38; Sminchisescu, C. (2011). Probabilistic joint
    image segmentation and labeling. In <i>NIPS Proceedings</i> (Vol. 24, pp. 1827–1835).
    Granada, Spain: Neural Information Processing Systems Foundation.'
  chicago: Ion, Adrian, Joao Carreira, and Cristian Sminchisescu. “Probabilistic Joint
    Image Segmentation and Labeling.” In <i>NIPS Proceedings</i>, 24:1827–35. Neural
    Information Processing Systems Foundation, 2011.
  ieee: A. Ion, J. Carreira, and C. Sminchisescu, “Probabilistic joint image segmentation
    and labeling,” in <i>NIPS Proceedings</i>, Granada, Spain, 2011, vol. 24, pp.
    1827–1835.
  ista: 'Ion A, Carreira J, Sminchisescu C. 2011. Probabilistic joint image segmentation
    and labeling. NIPS Proceedings. NIPS: Neural Information Processing Systems vol.
    24, 1827–1835.'
  mla: Ion, Adrian, et al. “Probabilistic Joint Image Segmentation and Labeling.”
    <i>NIPS Proceedings</i>, vol. 24, Neural Information Processing Systems Foundation,
    2011, pp. 1827–35.
  short: A. Ion, J. Carreira, C. Sminchisescu, in:, NIPS Proceedings, Neural Information
    Processing Systems Foundation, 2011, pp. 1827–1835.
conference:
  end_date: 2011-12-14
  location: Granada, Spain
  name: 'NIPS: Neural Information Processing Systems'
  start_date: 2011-12-12
date_created: 2018-12-11T12:02:21Z
date_published: 2011-12-01T00:00:00Z
date_updated: 2021-01-12T07:42:15Z
day: '01'
department:
- _id: HeEd
intvolume: '        24'
language:
- iso: eng
month: '12'
oa_version: None
page: 1827 - 1835
publication: NIPS Proceedings
publication_status: published
publisher: Neural Information Processing Systems Foundation
publist_id: '3381'
quality_controlled: '1'
scopus_import: 1
status: public
title: Probabilistic joint image segmentation and labeling
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2011'
...
---
_id: '3267'
abstract:
- lang: eng
  text: 'We address the problem of localizing homology classes, namely, finding the
    cycle representing a given class with the most concise geometric measure. We study
    the problem with different measures: volume, diameter and radius. For volume,
    that is, the 1-norm of a cycle, two main results are presented. First, we prove
    that the problem is NP-hard to approximate within any constant factor. Second,
    we prove that for homology of dimension two or higher, the problem is NP-hard
    to approximate even when the Betti number is O(1). The latter result leads to
    the inapproximability of the problem of computing the nonbounding cycle with the
    smallest volume and computing cycles representing a homology basis with the minimal
    total volume. As for the other two measures defined by pairwise geodesic distance,
    diameter and radius, we show that the localization problem is NP-hard for diameter
    but is polynomial for radius. Our work is restricted to homology over the ℤ2 field.'
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Daniel
  full_name: Freedman, Daniel
  last_name: Freedman
citation:
  ama: Chen C, Freedman D. Hardness results for homology localization. <i>Discrete
    &#38; Computational Geometry</i>. 2011;45(3):425-448. doi:<a href="https://doi.org/10.1007/s00454-010-9322-8">10.1007/s00454-010-9322-8</a>
  apa: Chen, C., &#38; Freedman, D. (2011). Hardness results for homology localization.
    <i>Discrete &#38; Computational Geometry</i>. Springer. <a href="https://doi.org/10.1007/s00454-010-9322-8">https://doi.org/10.1007/s00454-010-9322-8</a>
  chicago: Chen, Chao, and Daniel Freedman. “Hardness Results for Homology Localization.”
    <i>Discrete &#38; Computational Geometry</i>. Springer, 2011. <a href="https://doi.org/10.1007/s00454-010-9322-8">https://doi.org/10.1007/s00454-010-9322-8</a>.
  ieee: C. Chen and D. Freedman, “Hardness results for homology localization,” <i>Discrete
    &#38; Computational Geometry</i>, vol. 45, no. 3. Springer, pp. 425–448, 2011.
  ista: Chen C, Freedman D. 2011. Hardness results for homology localization. Discrete
    &#38; Computational Geometry. 45(3), 425–448.
  mla: Chen, Chao, and Daniel Freedman. “Hardness Results for Homology Localization.”
    <i>Discrete &#38; Computational Geometry</i>, vol. 45, no. 3, Springer, 2011,
    pp. 425–48, doi:<a href="https://doi.org/10.1007/s00454-010-9322-8">10.1007/s00454-010-9322-8</a>.
  short: C. Chen, D. Freedman, Discrete &#38; Computational Geometry 45 (2011) 425–448.
date_created: 2018-12-11T12:02:21Z
date_published: 2011-01-14T00:00:00Z
date_updated: 2023-02-21T16:07:10Z
day: '14'
department:
- _id: HeEd
doi: 10.1007/s00454-010-9322-8
intvolume: '        45'
issue: '3'
language:
- iso: eng
month: '01'
oa_version: None
page: 425 - 448
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '3379'
quality_controlled: '1'
related_material:
  record:
  - id: '10909'
    relation: earlier_version
    status: public
scopus_import: 1
status: public
title: Hardness results for homology localization
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 45
year: '2011'
...
---
_id: '3269'
abstract:
- lang: eng
  text: The unintentional scattering of light between neighboring surfaces in complex
    projection environments increases the brightness and decreases the contrast, disrupting
    the appearance of the desired imagery. To achieve satisfactory projection results,
    the inverse problem of global illumination must be solved to cancel this secondary
    scattering. In this paper, we propose a global illumination cancellation method
    that minimizes the perceptual difference between the desired imagery and the actual
    total illumination in the resulting physical environment. Using Gauss-Newton and
    active set methods, we design a fast solver for the bound constrained nonlinear
    least squares problem raised by the perceptual error metrics. Our solver is further
    accelerated with a CUDA implementation and multi-resolution method to achieve
    1–2 fps for problems with approximately 3000 variables. We demonstrate the global
    illumination cancellation algorithm with our multi-projector system. Results show
    that our method preserves the color fidelity of the desired imagery significantly
    better than previous methods.
article_processing_charge: No
article_type: original
author:
- first_name: Yu
  full_name: Sheng, Yu
  last_name: Sheng
- first_name: Barbara
  full_name: Cutler, Barbara
  last_name: Cutler
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Joshua
  full_name: Nasman, Joshua
  last_name: Nasman
citation:
  ama: Sheng Y, Cutler B, Chen C, Nasman J. Perceptual global illumination cancellation
    in complex projection environments. <i>Computer Graphics Forum</i>. 2011;30(4):1261-1268.
    doi:<a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">10.1111/j.1467-8659.2011.01985.x</a>
  apa: Sheng, Y., Cutler, B., Chen, C., &#38; Nasman, J. (2011). Perceptual global
    illumination cancellation in complex projection environments. <i>Computer Graphics
    Forum</i>. Wiley-Blackwell. <a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">https://doi.org/10.1111/j.1467-8659.2011.01985.x</a>
  chicago: Sheng, Yu, Barbara Cutler, Chao Chen, and Joshua Nasman. “Perceptual Global
    Illumination Cancellation in Complex Projection Environments.” <i>Computer Graphics
    Forum</i>. Wiley-Blackwell, 2011. <a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">https://doi.org/10.1111/j.1467-8659.2011.01985.x</a>.
  ieee: Y. Sheng, B. Cutler, C. Chen, and J. Nasman, “Perceptual global illumination
    cancellation in complex projection environments,” <i>Computer Graphics Forum</i>,
    vol. 30, no. 4. Wiley-Blackwell, pp. 1261–1268, 2011.
  ista: Sheng Y, Cutler B, Chen C, Nasman J. 2011. Perceptual global illumination
    cancellation in complex projection environments. Computer Graphics Forum. 30(4),
    1261–1268.
  mla: Sheng, Yu, et al. “Perceptual Global Illumination Cancellation in Complex Projection
    Environments.” <i>Computer Graphics Forum</i>, vol. 30, no. 4, Wiley-Blackwell,
    2011, pp. 1261–68, doi:<a href="https://doi.org/10.1111/j.1467-8659.2011.01985.x">10.1111/j.1467-8659.2011.01985.x</a>.
  short: Y. Sheng, B. Cutler, C. Chen, J. Nasman, Computer Graphics Forum 30 (2011)
    1261–1268.
date_created: 2018-12-11T12:02:22Z
date_published: 2011-07-19T00:00:00Z
date_updated: 2021-01-12T07:42:16Z
day: '19'
department:
- _id: HeEd
doi: 10.1111/j.1467-8659.2011.01985.x
intvolume: '        30'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.cs.cmu.edu/%7Eshengyu/download/egsr2011_paper.pdf
month: '07'
oa: 1
oa_version: Published Version
page: 1261 - 1268
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley-Blackwell
publist_id: '3377'
quality_controlled: '1'
scopus_import: 1
status: public
title: Perceptual global illumination cancellation in complex projection environments
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2011'
...
---
_id: '3270'
abstract:
- lang: eng
  text: 'The persistence diagram of a filtered simplicial com- plex is usually computed
    by reducing the boundary matrix of the complex. We introduce a simple op- timization
    technique: by processing the simplices of the complex in decreasing dimension,
    we can “kill” columns (i.e., set them to zero) without reducing them. This technique
    completely avoids reduction on roughly half of the columns. We demonstrate that
    this idea significantly improves the running time of the reduction algorithm in
    practice. We also give an output-sensitive complexity analysis for the new al-
    gorithm which yields to sub-cubic asymptotic bounds under certain assumptions.'
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
citation:
  ama: 'Chen C, Kerber M. Persistent homology computation with a twist. In: TU Dortmund;
    2011:197-200.'
  apa: 'Chen, C., &#38; Kerber, M. (2011). Persistent homology computation with a
    twist (pp. 197–200). Presented at the EuroCG: European Workshop on Computational
    Geometry, Morschach, Switzerland: TU Dortmund.'
  chicago: Chen, Chao, and Michael Kerber. “Persistent Homology Computation with a
    Twist,” 197–200. TU Dortmund, 2011.
  ieee: 'C. Chen and M. Kerber, “Persistent homology computation with a twist,” presented
    at the EuroCG: European Workshop on Computational Geometry, Morschach, Switzerland,
    2011, pp. 197–200.'
  ista: 'Chen C, Kerber M. 2011. Persistent homology computation with a twist. EuroCG:
    European Workshop on Computational Geometry, 197–200.'
  mla: Chen, Chao, and Michael Kerber. <i>Persistent Homology Computation with a Twist</i>.
    TU Dortmund, 2011, pp. 197–200.
  short: C. Chen, M. Kerber, in:, TU Dortmund, 2011, pp. 197–200.
conference:
  end_date: 2011-03-30
  location: Morschach, Switzerland
  name: 'EuroCG: European Workshop on Computational Geometry'
  start_date: 2011-03-28
date_created: 2018-12-11T12:02:22Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T07:42:17Z
day: '01'
department:
- _id: HeEd
language:
- iso: eng
month: '01'
oa_version: None
page: 197 - 200
publication_status: published
publisher: TU Dortmund
publist_id: '3376'
quality_controlled: '1'
status: public
title: Persistent homology computation with a twist
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3271'
abstract:
- lang: eng
  text: In this paper we present an efficient framework for computation of persis-
    tent homology of cubical data in arbitrary dimensions. An existing algorithm using
    simplicial complexes is adapted to the setting of cubical complexes. The proposed
    approach enables efficient application of persistent homology in domains where
    the data is naturally given in a cubical form. By avoiding triangulation of the
    data, we significantly reduce the size of the complex. We also present a data-structure
    de- signed to compactly store and quickly manipulate cubical complexes. By means
    of numerical experiments, we show high speed and memory efficiency of our ap-
    proach. We compare our framework to other available implementations, showing its
    superiority. Finally, we report performance on selected 3D and 4D data-sets.
alternative_title:
- Theory, Algorithms, and Applications
author:
- first_name: Hubert
  full_name: Wagner, Hubert
  last_name: Wagner
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Erald
  full_name: Vuçini, Erald
  last_name: Vuçini
citation:
  ama: 'Wagner H, Chen C, Vuçini E. Efficient computation of persistent homology for
    cubical data. In: Peikert R, Hauser H, Carr H, Fuchs R, eds. <i>Topological Methods
    in Data Analysis and Visualization II</i>. Springer; 2011:91-106. doi:<a href="https://doi.org/10.1007/978-3-642-23175-9_7">10.1007/978-3-642-23175-9_7</a>'
  apa: Wagner, H., Chen, C., &#38; Vuçini, E. (2011). Efficient computation of persistent
    homology for cubical data. In R. Peikert, H. Hauser, H. Carr, &#38; R. Fuchs (Eds.),
    <i>Topological Methods in Data Analysis and Visualization II</i> (pp. 91–106).
    Springer. <a href="https://doi.org/10.1007/978-3-642-23175-9_7">https://doi.org/10.1007/978-3-642-23175-9_7</a>
  chicago: Wagner, Hubert, Chao Chen, and Erald Vuçini. “Efficient Computation of
    Persistent Homology for Cubical Data.” In <i>Topological Methods in Data Analysis
    and Visualization II</i>, edited by Ronald Peikert, Helwig Hauser, Hamish Carr,
    and Raphael Fuchs, 91–106. Springer, 2011. <a href="https://doi.org/10.1007/978-3-642-23175-9_7">https://doi.org/10.1007/978-3-642-23175-9_7</a>.
  ieee: H. Wagner, C. Chen, and E. Vuçini, “Efficient computation of persistent homology
    for cubical data,” in <i>Topological Methods in Data Analysis and Visualization
    II</i>, R. Peikert, H. Hauser, H. Carr, and R. Fuchs, Eds. Springer, 2011, pp.
    91–106.
  ista: 'Wagner H, Chen C, Vuçini E. 2011.Efficient computation of persistent homology
    for cubical data. In: Topological Methods in Data Analysis and Visualization II.
    Theory, Algorithms, and Applications, , 91–106.'
  mla: Wagner, Hubert, et al. “Efficient Computation of Persistent Homology for Cubical
    Data.” <i>Topological Methods in Data Analysis and Visualization II</i>, edited
    by Ronald Peikert et al., Springer, 2011, pp. 91–106, doi:<a href="https://doi.org/10.1007/978-3-642-23175-9_7">10.1007/978-3-642-23175-9_7</a>.
  short: H. Wagner, C. Chen, E. Vuçini, in:, R. Peikert, H. Hauser, H. Carr, R. Fuchs
    (Eds.), Topological Methods in Data Analysis and Visualization II, Springer, 2011,
    pp. 91–106.
date_created: 2018-12-11T12:02:23Z
date_published: 2011-11-14T00:00:00Z
date_updated: 2021-01-12T07:42:18Z
day: '14'
department:
- _id: HeEd
doi: 10.1007/978-3-642-23175-9_7
editor:
- first_name: Ronald
  full_name: Peikert, Ronald
  last_name: Peikert
- first_name: Helwig
  full_name: Hauser, Helwig
  last_name: Hauser
- first_name: Hamish
  full_name: Carr, Hamish
  last_name: Carr
- first_name: Raphael
  full_name: Fuchs, Raphael
  last_name: Fuchs
language:
- iso: eng
month: '11'
oa_version: None
page: 91 - 106
publication: Topological Methods in Data Analysis and Visualization II
publication_status: published
publisher: Springer
publist_id: '3375'
quality_controlled: '1'
scopus_import: 1
status: public
title: Efficient computation of persistent homology for cubical data
type: book_chapter
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3311'
abstract:
- lang: eng
  text: Alpha shapes have been conceived in 1981 as an attempt to define the shape
    of a finite set of point in the plane. Since then, connections to diverse areas
    in the sciences and engineering have developed, including to pattern recognition,
    digital shape sampling and processing, and structural molecular biology. This
    survey begins with a historical account and discusses geometric, algorithmic,
    topological, and combinatorial aspects of alpha shapes in this sequence.
article_processing_charge: No
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: 'Edelsbrunner H. Alpha shapes - a survey. In: van de Weygaert R, Vegter G,
    Ritzerveld J, Icke V, eds. <i>Tessellations in the Sciences: Virtues, Techniques
    and Applications of Geometric Tilings</i>. Springer.'
  apa: 'Edelsbrunner, H. (n.d.). Alpha shapes - a survey. In R. van de Weygaert, G.
    Vegter, J. Ritzerveld, &#38; V. Icke (Eds.), <i>Tessellations in the Sciences:
    Virtues, Techniques and Applications of Geometric Tilings</i>. Springer.'
  chicago: 'Edelsbrunner, Herbert. “Alpha Shapes - a Survey.” In <i>Tessellations
    in the Sciences: Virtues, Techniques and Applications of Geometric Tilings</i>,
    edited by R van de Weygaert, G Vegter, J Ritzerveld, and V Icke. Springer, n.d.'
  ieee: 'H. Edelsbrunner, “Alpha shapes - a survey,” in <i>Tessellations in the Sciences:
    Virtues, Techniques and Applications of Geometric Tilings</i>, R. van de Weygaert,
    G. Vegter, J. Ritzerveld, and V. Icke, Eds. Springer.'
  ista: 'Edelsbrunner H.Alpha shapes - a survey. In: Tessellations in the Sciences:
    Virtues, Techniques and Applications of Geometric Tilings. .'
  mla: 'Edelsbrunner, Herbert. “Alpha Shapes - a Survey.” <i>Tessellations in the
    Sciences: Virtues, Techniques and Applications of Geometric Tilings</i>, edited
    by R van de Weygaert et al., Springer.'
  short: 'H. Edelsbrunner, in:, R. van de Weygaert, G. Vegter, J. Ritzerveld, V. Icke
    (Eds.), Tessellations in the Sciences: Virtues, Techniques and Applications of
    Geometric Tilings, Springer, n.d.'
date_created: 2018-12-11T12:02:36Z
date_published: 2011-12-31T00:00:00Z
date_updated: 2022-05-24T07:56:30Z
day: '31'
ddc:
- '510'
department:
- _id: HeEd
editor:
- first_name: R
  full_name: van de Weygaert, R
  last_name: van de Weygaert
- first_name: G
  full_name: Vegter, G
  last_name: Vegter
- first_name: J
  full_name: Ritzerveld, J
  last_name: Ritzerveld
- first_name: V
  full_name: Icke, V
  last_name: Icke
file:
- access_level: open_access
  checksum: a592ea438351e7280eea993a7713ab8f
  content_type: application/pdf
  creator: dernst
  date_created: 2022-05-24T07:55:05Z
  date_updated: 2022-05-24T07:55:05Z
  file_id: '11408'
  file_name: 2010_AlphaShapes.pdf
  file_size: 475254
  relation: main_file
  success: 1
file_date_updated: 2022-05-24T07:55:05Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
publication: 'Tessellations in the Sciences: Virtues, Techniques and Applications
  of Geometric Tilings'
publication_status: inpress
publisher: Springer
publist_id: '3329'
quality_controlled: '1'
status: public
title: Alpha shapes - a survey
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3312'
abstract:
- lang: eng
  text: We study the 3D reconstruction of plant roots from multiple 2D images. To
    meet the challenge caused by the delicate nature of thin branches, we make three
    innovations to cope with the sensitivity to image quality and calibration. First,
    we model the background as a harmonic function to improve the segmentation of
    the root in each 2D image. Second, we develop the concept of the regularized visual
    hull which reduces the effect of jittering and refraction by ensuring consistency
    with one 2D image. Third, we guarantee connectedness through adjustments to the
    3D reconstruction that minimize global error. Our software is part of a biological
    phenotype/genotype study of agricultural root systems. It has been tested on more
    than 40 plant roots and results are promising in terms of reconstruction quality
    and efficiency.
acknowledgement: This research is supported by the National Science Foundation (NSF)
  under grant DBI-0820624.
article_number: '6126475'
article_processing_charge: No
author:
- first_name: Ying
  full_name: Zheng, Ying
  last_name: Zheng
- first_name: Steve
  full_name: Gu, Steve
  last_name: Gu
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Carlo
  full_name: Tomasi, Carlo
  last_name: Tomasi
- first_name: Philip
  full_name: Benfey, Philip
  last_name: Benfey
citation:
  ama: Zheng Y, Gu S, Edelsbrunner H, Tomasi C, Benfey P. <i>Detailed Reconstruction
    of 3D Plant Root Shape</i>. IEEE; 2011. doi:<a href="https://doi.org/10.1109/ICCV.2011.6126475">10.1109/ICCV.2011.6126475</a>
  apa: 'Zheng, Y., Gu, S., Edelsbrunner, H., Tomasi, C., &#38; Benfey, P. (2011).
    <i>Detailed reconstruction of 3D plant root shape</i>. <i>Proceedings of the IEEE
    International Conference on Computer Vision</i>. Barcelona, Spain: IEEE. <a href="https://doi.org/10.1109/ICCV.2011.6126475">https://doi.org/10.1109/ICCV.2011.6126475</a>'
  chicago: Zheng, Ying, Steve Gu, Herbert Edelsbrunner, Carlo Tomasi, and Philip Benfey.
    <i>Detailed Reconstruction of 3D Plant Root Shape</i>. <i>Proceedings of the IEEE
    International Conference on Computer Vision</i>. IEEE, 2011. <a href="https://doi.org/10.1109/ICCV.2011.6126475">https://doi.org/10.1109/ICCV.2011.6126475</a>.
  ieee: Y. Zheng, S. Gu, H. Edelsbrunner, C. Tomasi, and P. Benfey, <i>Detailed reconstruction
    of 3D plant root shape</i>. IEEE, 2011.
  ista: Zheng Y, Gu S, Edelsbrunner H, Tomasi C, Benfey P. 2011. Detailed reconstruction
    of 3D plant root shape, IEEE,p.
  mla: Zheng, Ying, et al. “Detailed Reconstruction of 3D Plant Root Shape.” <i>Proceedings
    of the IEEE International Conference on Computer Vision</i>, 6126475, IEEE, 2011,
    doi:<a href="https://doi.org/10.1109/ICCV.2011.6126475">10.1109/ICCV.2011.6126475</a>.
  short: Y. Zheng, S. Gu, H. Edelsbrunner, C. Tomasi, P. Benfey, Detailed Reconstruction
    of 3D Plant Root Shape, IEEE, 2011.
conference:
  end_date: 2011-11-13
  location: Barcelona, Spain
  name: 'ICCV: International Conference on Computer Vision'
  start_date: 2011-11-06
date_created: 2018-12-11T12:02:36Z
date_published: 2011-12-31T00:00:00Z
date_updated: 2020-07-14T23:03:43Z
day: '31'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1109/ICCV.2011.6126475
file:
- access_level: open_access
  checksum: 30a33564b7b45a7ee31610898267fd0e
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:09:04Z
  date_updated: 2020-07-14T12:46:07Z
  file_id: '4727'
  file_name: IST-2016-541-v1+1_2011-P-07-RootReconstruction.pdf
  file_size: 5622728
  relation: main_file
file_date_updated: 2020-07-14T12:46:07Z
has_accepted_license: '1'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
publication: Proceedings of the IEEE International Conference on Computer Vision
publication_status: published
publisher: IEEE
publist_id: '3328'
pubrep_id: '541'
quality_controlled: '1'
status: public
title: Detailed reconstruction of 3D plant root shape
type: conference_poster
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3313'
abstract:
- lang: eng
  text: Interpreting an image as a function on a compact sub- set of the Euclidean
    plane, we get its scale-space by diffu- sion, spreading the image over the entire
    plane. This gener- ates a 1-parameter family of functions alternatively defined
    as convolutions with a progressively wider Gaussian ker- nel. We prove that the
    corresponding 1-parameter family of persistence diagrams have norms that go rapidly
    to zero as time goes to infinity. This result rationalizes experimental observations
    about scale-space. We hope this will lead to targeted improvements of related
    computer vision methods.
article_number: '6126271'
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
citation:
  ama: 'Chen C, Edelsbrunner H. Diffusion runs low on persistence fast. In: <i>Proceedings
    of the IEEE International Conference on Computer Vision</i>. IEEE; 2011. doi:<a
    href="https://doi.org/10.1109/ICCV.2011.6126271">10.1109/ICCV.2011.6126271</a>'
  apa: 'Chen, C., &#38; Edelsbrunner, H. (2011). Diffusion runs low on persistence
    fast. In <i>Proceedings of the IEEE International Conference on Computer Vision</i>.
    Barcelona, Spain: IEEE. <a href="https://doi.org/10.1109/ICCV.2011.6126271">https://doi.org/10.1109/ICCV.2011.6126271</a>'
  chicago: Chen, Chao, and Herbert Edelsbrunner. “Diffusion Runs Low on Persistence
    Fast.” In <i>Proceedings of the IEEE International Conference on Computer Vision</i>.
    IEEE, 2011. <a href="https://doi.org/10.1109/ICCV.2011.6126271">https://doi.org/10.1109/ICCV.2011.6126271</a>.
  ieee: C. Chen and H. Edelsbrunner, “Diffusion runs low on persistence fast,” in
    <i>Proceedings of the IEEE International Conference on Computer Vision</i>, Barcelona,
    Spain, 2011.
  ista: 'Chen C, Edelsbrunner H. 2011. Diffusion runs low on persistence fast. Proceedings
    of the IEEE International Conference on Computer Vision. ICCV: International Conference
    on Computer Vision, 6126271.'
  mla: Chen, Chao, and Herbert Edelsbrunner. “Diffusion Runs Low on Persistence Fast.”
    <i>Proceedings of the IEEE International Conference on Computer Vision</i>, 6126271,
    IEEE, 2011, doi:<a href="https://doi.org/10.1109/ICCV.2011.6126271">10.1109/ICCV.2011.6126271</a>.
  short: C. Chen, H. Edelsbrunner, in:, Proceedings of the IEEE International Conference
    on Computer Vision, IEEE, 2011.
conference:
  end_date: 2011-11-13
  location: Barcelona, Spain
  name: 'ICCV: International Conference on Computer Vision'
  start_date: 2011-11-06
date_created: 2018-12-11T12:02:37Z
date_published: 2011-11-06T00:00:00Z
date_updated: 2021-01-12T07:42:35Z
day: '06'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.1109/ICCV.2011.6126271
file:
- access_level: open_access
  checksum: 6984684081ba123808b344f9f2e64a8f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:28Z
  date_updated: 2020-07-14T12:46:07Z
  file_id: '5282'
  file_name: IST-2016-540-v1+1_2011-P-08-RunEmpty.pdf
  file_size: 614050
  relation: main_file
file_date_updated: 2020-07-14T12:46:07Z
has_accepted_license: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Submitted Version
publication: Proceedings of the IEEE International Conference on Computer Vision
publication_status: published
publisher: IEEE
publist_id: '3327'
pubrep_id: '540'
quality_controlled: '1'
scopus_import: 1
status: public
title: Diffusion runs low on persistence fast
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3328'
abstract:
- lang: eng
  text: 'We report on a generic uni- and bivariate algebraic kernel that is publicly
    available with CGAL 3.7. It comprises complete, correct, though efficient state-of-the-art
    implementations on polynomials, roots of polynomial systems, and the support to
    analyze algebraic curves defined by bivariate polynomials. The kernel design is
    generic, that is, various number types and substeps can be exchanged. It is accompanied
    with a ready-to-use interface to enable arrangements induced by algebraic curves,
    that have already been used as basis for various geometric applications, as arrangements
    on Dupin cyclides or the triangulation of algebraic surfaces. We present two novel
    applications: arrangements of rotated algebraic curves and Boolean set operations
    on polygons bounded by segments of algebraic curves. We also provide experiments
    showing that our general implementation is competitive and even often clearly
    outperforms existing implementations that are explicitly tailored for specific
    types of non-linear curves that are available in CGAL.'
article_processing_charge: No
author:
- first_name: Eric
  full_name: Berberich, Eric
  last_name: Berberich
- first_name: Michael
  full_name: Hemmer, Michael
  last_name: Hemmer
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
citation:
  ama: 'Berberich E, Hemmer M, Kerber M. A generic algebraic kernel for non linear
    geometric applications. In: ACM; 2011:179-186. doi:<a href="https://doi.org/10.1145/1998196.1998224">10.1145/1998196.1998224</a>'
  apa: 'Berberich, E., Hemmer, M., &#38; Kerber, M. (2011). A generic algebraic kernel
    for non linear geometric applications (pp. 179–186). Presented at the SCG: Symposium
    on Computational Geometry, Paris, France: ACM. <a href="https://doi.org/10.1145/1998196.1998224">https://doi.org/10.1145/1998196.1998224</a>'
  chicago: Berberich, Eric, Michael Hemmer, and Michael Kerber. “A Generic Algebraic
    Kernel for Non Linear Geometric Applications,” 179–86. ACM, 2011. <a href="https://doi.org/10.1145/1998196.1998224">https://doi.org/10.1145/1998196.1998224</a>.
  ieee: 'E. Berberich, M. Hemmer, and M. Kerber, “A generic algebraic kernel for non
    linear geometric applications,” presented at the SCG: Symposium on Computational
    Geometry, Paris, France, 2011, pp. 179–186.'
  ista: 'Berberich E, Hemmer M, Kerber M. 2011. A generic algebraic kernel for non
    linear geometric applications. SCG: Symposium on Computational Geometry, 179–186.'
  mla: Berberich, Eric, et al. <i>A Generic Algebraic Kernel for Non Linear Geometric
    Applications</i>. ACM, 2011, pp. 179–86, doi:<a href="https://doi.org/10.1145/1998196.1998224">10.1145/1998196.1998224</a>.
  short: E. Berberich, M. Hemmer, M. Kerber, in:, ACM, 2011, pp. 179–186.
conference:
  end_date: 2011-06-15
  location: Paris, France
  name: 'SCG: Symposium on Computational Geometry'
  start_date: 2011-06-13
date_created: 2018-12-11T12:02:42Z
date_published: 2011-06-13T00:00:00Z
date_updated: 2021-01-12T07:42:41Z
day: '13'
department:
- _id: HeEd
doi: 10.1145/1998196.1998224
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://hal.inria.fr/inria-00480031/file/RR-7274.pdf
month: '06'
oa: 1
oa_version: Published Version
page: 179 - 186
publication_status: published
publisher: ACM
publist_id: '3307'
quality_controlled: '1'
scopus_import: 1
status: public
title: A generic algebraic kernel for non linear geometric applications
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3329'
abstract:
- lang: eng
  text: 'We consider the offset-deconstruction problem: Given a polygonal shape Q
    with n vertices, can it be expressed, up to a tolerance µ in Hausdorff distance,
    as the Minkowski sum of another polygonal shape P with a disk of fixed radius?
    If it does, we also seek a preferably simple-looking solution shape P; then, P''s
    offset constitutes an accurate, vertex-reduced, and smoothened approximation of
    Q. We give an O(n log n)-time exact decision algorithm that handles any polygonal
    shape, assuming the real-RAM model of computation. An alternative algorithm, based
    purely on rational arithmetic, answers the same deconstruction problem, up to
    an uncertainty parameter, and its running time depends on the parameter δ (in
    addition to the other input parameters: n, δ and the radius of the disk). If the
    input shape is found to be approximable, the rational-arithmetic algorithm also
    computes an approximate solution shape for the problem. For convex shapes, the
    complexity of the exact decision algorithm drops to O(n), which is also the time
    required to compute a solution shape P with at most one more vertex than a vertex-minimal
    one. Our study is motivated by applications from two different domains. However,
    since the offset operation has numerous uses, we anticipate that the reverse question
    that we study here will be still more broadly applicable. We present results obtained
    with our implementation of the rational-arithmetic algorithm.'
author:
- first_name: Eric
  full_name: Berberich, Eric
  last_name: Berberich
- first_name: Dan
  full_name: Halperin, Dan
  last_name: Halperin
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Roza
  full_name: Pogalnikova, Roza
  last_name: Pogalnikova
citation:
  ama: 'Berberich E, Halperin D, Kerber M, Pogalnikova R. Deconstructing approximate
    offsets. In: <i>Proceedings of the Twenty-Seventh Annual Symposium on Computational
    Geometry</i>. ACM; 2011:187-196. doi:<a href="https://doi.org/10.1145/1998196.1998225">10.1145/1998196.1998225</a>'
  apa: 'Berberich, E., Halperin, D., Kerber, M., &#38; Pogalnikova, R. (2011). Deconstructing
    approximate offsets. In <i>Proceedings of the twenty-seventh annual symposium
    on Computational geometry</i> (pp. 187–196). Paris, France: ACM. <a href="https://doi.org/10.1145/1998196.1998225">https://doi.org/10.1145/1998196.1998225</a>'
  chicago: Berberich, Eric, Dan Halperin, Michael Kerber, and Roza Pogalnikova. “Deconstructing
    Approximate Offsets.” In <i>Proceedings of the Twenty-Seventh Annual Symposium
    on Computational Geometry</i>, 187–96. ACM, 2011. <a href="https://doi.org/10.1145/1998196.1998225">https://doi.org/10.1145/1998196.1998225</a>.
  ieee: E. Berberich, D. Halperin, M. Kerber, and R. Pogalnikova, “Deconstructing
    approximate offsets,” in <i>Proceedings of the twenty-seventh annual symposium
    on Computational geometry</i>, Paris, France, 2011, pp. 187–196.
  ista: 'Berberich E, Halperin D, Kerber M, Pogalnikova R. 2011. Deconstructing approximate
    offsets. Proceedings of the twenty-seventh annual symposium on Computational geometry.
    SCG: Symposium on Computational Geometry, 187–196.'
  mla: Berberich, Eric, et al. “Deconstructing Approximate Offsets.” <i>Proceedings
    of the Twenty-Seventh Annual Symposium on Computational Geometry</i>, ACM, 2011,
    pp. 187–96, doi:<a href="https://doi.org/10.1145/1998196.1998225">10.1145/1998196.1998225</a>.
  short: E. Berberich, D. Halperin, M. Kerber, R. Pogalnikova, in:, Proceedings of
    the Twenty-Seventh Annual Symposium on Computational Geometry, ACM, 2011, pp.
    187–196.
conference:
  end_date: 2011-06-15
  location: Paris, France
  name: 'SCG: Symposium on Computational Geometry'
  start_date: 2011-06-13
date_created: 2018-12-11T12:02:42Z
date_published: 2011-06-13T00:00:00Z
date_updated: 2023-02-23T11:12:57Z
day: '13'
department:
- _id: HeEd
doi: 10.1145/1998196.1998225
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1109.2158
month: '06'
oa: 1
oa_version: Preprint
page: 187 - 196
publication: Proceedings of the twenty-seventh annual symposium on Computational geometry
publication_status: published
publisher: ACM
publist_id: '3306'
quality_controlled: '1'
related_material:
  record:
  - id: '3115'
    relation: later_version
    status: public
scopus_import: 1
status: public
title: Deconstructing approximate offsets
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3330'
abstract:
- lang: eng
  text: We consider the problem of approximating all real roots of a square-free polynomial
    f. Given isolating intervals, our algorithm refines each of them to a width at
    most 2-L, that is, each of the roots is approximated to L bits after the binary
    point. Our method provides a certified answer for arbitrary real polynomials,
    only requiring finite approximations of the polynomial coefficient and choosing
    a suitable working precision adaptively. In this way, we get a correct algorithm
    that is simple to implement and practically efficient. Our algorithm uses the
    quadratic interval refinement method; we adapt that method to be able to cope
    with inaccuracies when evaluating f, without sacrificing its quadratic convergence
    behavior. We prove a bound on the bit complexity of our algorithm in terms of
    degree, coefficient size and discriminant. Our bound improves previous work on
    integer polynomials by a factor of deg f and essentially matches best known theoretical
    bounds on root approximation which are obtained by very sophisticated algorithms.
article_processing_charge: No
arxiv: 1
author:
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Michael
  full_name: Sagraloff, Michael
  last_name: Sagraloff
citation:
  ama: 'Kerber M, Sagraloff M. Root refinement for real polynomials. In: Springer;
    2011:209-216. doi:<a href="https://doi.org/10.1145/1993886.1993920">10.1145/1993886.1993920</a>'
  apa: 'Kerber, M., &#38; Sagraloff, M. (2011). Root refinement for real polynomials
    (pp. 209–216). Presented at the ISSAC: International Symposium on Symbolic and
    Algebraic Computation, California, USA: Springer. <a href="https://doi.org/10.1145/1993886.1993920">https://doi.org/10.1145/1993886.1993920</a>'
  chicago: Kerber, Michael, and Michael Sagraloff. “Root Refinement for Real Polynomials,”
    209–16. Springer, 2011. <a href="https://doi.org/10.1145/1993886.1993920">https://doi.org/10.1145/1993886.1993920</a>.
  ieee: 'M. Kerber and M. Sagraloff, “Root refinement for real polynomials,” presented
    at the ISSAC: International Symposium on Symbolic and Algebraic Computation, California,
    USA, 2011, pp. 209–216.'
  ista: 'Kerber M, Sagraloff M. 2011. Root refinement for real polynomials. ISSAC:
    International Symposium on Symbolic and Algebraic Computation, 209–216.'
  mla: Kerber, Michael, and Michael Sagraloff. <i>Root Refinement for Real Polynomials</i>.
    Springer, 2011, pp. 209–16, doi:<a href="https://doi.org/10.1145/1993886.1993920">10.1145/1993886.1993920</a>.
  short: M. Kerber, M. Sagraloff, in:, Springer, 2011, pp. 209–216.
conference:
  end_date: 2011-06-11
  location: California, USA
  name: 'ISSAC: International Symposium on Symbolic and Algebraic Computation'
  start_date: 2011-06-08
date_created: 2018-12-11T12:02:43Z
date_published: 2011-06-08T00:00:00Z
date_updated: 2021-01-12T07:42:42Z
day: '08'
department:
- _id: HeEd
doi: 10.1145/1993886.1993920
external_id:
  arxiv:
  - '1104.1362'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1104.1362
month: '06'
oa: 1
oa_version: Preprint
page: 209 - 216
publication_status: published
publisher: Springer
publist_id: '3304'
quality_controlled: '1'
scopus_import: 1
status: public
title: Root refinement for real polynomials
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '3332'
abstract:
- lang: eng
  text: Given an algebraic hypersurface O in ℝd, how many simplices are necessary
    for a simplicial complex isotopic to O? We address this problem and the variant
    where all vertices of the complex must lie on O. We give asymptotically tight
    worst-case bounds for algebraic plane curves. Our results gradually improve known
    bounds in higher dimensions; however, the question for tight bounds remains unsolved
    for d ≥ 3.
article_processing_charge: No
article_type: original
author:
- first_name: Michael
  full_name: Kerber, Michael
  id: 36E4574A-F248-11E8-B48F-1D18A9856A87
  last_name: Kerber
  orcid: 0000-0002-8030-9299
- first_name: Michael
  full_name: Sagraloff, Michael
  last_name: Sagraloff
citation:
  ama: Kerber M, Sagraloff M. A note on the complexity of real algebraic hypersurfaces.
    <i>Graphs and Combinatorics</i>. 2011;27(3):419-430. doi:<a href="https://doi.org/10.1007/s00373-011-1020-7">10.1007/s00373-011-1020-7</a>
  apa: Kerber, M., &#38; Sagraloff, M. (2011). A note on the complexity of real algebraic
    hypersurfaces. <i>Graphs and Combinatorics</i>. Springer. <a href="https://doi.org/10.1007/s00373-011-1020-7">https://doi.org/10.1007/s00373-011-1020-7</a>
  chicago: Kerber, Michael, and Michael Sagraloff. “A Note on the Complexity of Real
    Algebraic Hypersurfaces.” <i>Graphs and Combinatorics</i>. Springer, 2011. <a
    href="https://doi.org/10.1007/s00373-011-1020-7">https://doi.org/10.1007/s00373-011-1020-7</a>.
  ieee: M. Kerber and M. Sagraloff, “A note on the complexity of real algebraic hypersurfaces,”
    <i>Graphs and Combinatorics</i>, vol. 27, no. 3. Springer, pp. 419–430, 2011.
  ista: Kerber M, Sagraloff M. 2011. A note on the complexity of real algebraic hypersurfaces.
    Graphs and Combinatorics. 27(3), 419–430.
  mla: Kerber, Michael, and Michael Sagraloff. “A Note on the Complexity of Real Algebraic
    Hypersurfaces.” <i>Graphs and Combinatorics</i>, vol. 27, no. 3, Springer, 2011,
    pp. 419–30, doi:<a href="https://doi.org/10.1007/s00373-011-1020-7">10.1007/s00373-011-1020-7</a>.
  short: M. Kerber, M. Sagraloff, Graphs and Combinatorics 27 (2011) 419–430.
date_created: 2018-12-11T12:02:43Z
date_published: 2011-03-17T00:00:00Z
date_updated: 2021-01-12T07:42:43Z
day: '17'
ddc:
- '500'
department:
- _id: HeEd
doi: 10.1007/s00373-011-1020-7
file:
- access_level: open_access
  checksum: a63a1e3e885dcc68f1e3dea68dfbe213
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-19T16:11:36Z
  date_updated: 2020-07-14T12:46:08Z
  file_id: '7869'
  file_name: 2011_GraphsCombi_Kerber.pdf
  file_size: 143976
  relation: main_file
file_date_updated: 2020-07-14T12:46:08Z
has_accepted_license: '1'
intvolume: '        27'
issue: '3'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Submitted Version
page: 419 - 430
publication: Graphs and Combinatorics
publication_status: published
publisher: Springer
publist_id: '3301'
quality_controlled: '1'
scopus_import: 1
status: public
title: A note on the complexity of real algebraic hypersurfaces
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2011'
...
---
_id: '3334'
article_type: letter_note
author:
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: János
  full_name: Pach, János
  last_name: Pach
- first_name: Günter
  full_name: Ziegler, Günter
  last_name: Ziegler
citation:
  ama: Edelsbrunner H, Pach J, Ziegler G. Letter from the new editors-in-chief. <i>Discrete
    &#38; Computational Geometry</i>. 2011;45(1):1-2. doi:<a href="https://doi.org/10.1007/s00454-010-9313-9">10.1007/s00454-010-9313-9</a>
  apa: Edelsbrunner, H., Pach, J., &#38; Ziegler, G. (2011). Letter from the new editors-in-chief.
    <i>Discrete &#38; Computational Geometry</i>. Springer. <a href="https://doi.org/10.1007/s00454-010-9313-9">https://doi.org/10.1007/s00454-010-9313-9</a>
  chicago: Edelsbrunner, Herbert, János Pach, and Günter Ziegler. “Letter from the
    New Editors-in-Chief.” <i>Discrete &#38; Computational Geometry</i>. Springer,
    2011. <a href="https://doi.org/10.1007/s00454-010-9313-9">https://doi.org/10.1007/s00454-010-9313-9</a>.
  ieee: H. Edelsbrunner, J. Pach, and G. Ziegler, “Letter from the new editors-in-chief,”
    <i>Discrete &#38; Computational Geometry</i>, vol. 45, no. 1. Springer, pp. 1–2,
    2011.
  ista: Edelsbrunner H, Pach J, Ziegler G. 2011. Letter from the new editors-in-chief.
    Discrete &#38; Computational Geometry. 45(1), 1–2.
  mla: Edelsbrunner, Herbert, et al. “Letter from the New Editors-in-Chief.” <i>Discrete
    &#38; Computational Geometry</i>, vol. 45, no. 1, Springer, 2011, pp. 1–2, doi:<a
    href="https://doi.org/10.1007/s00454-010-9313-9">10.1007/s00454-010-9313-9</a>.
  short: H. Edelsbrunner, J. Pach, G. Ziegler, Discrete &#38; Computational Geometry
    45 (2011) 1–2.
date_created: 2018-12-11T12:02:44Z
date_published: 2011-01-01T00:00:00Z
date_updated: 2021-01-12T07:42:44Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/s00454-010-9313-9
intvolume: '        45'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 1 - 2
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '3297'
quality_controlled: '1'
scopus_import: 1
status: public
title: Letter from the new editors-in-chief
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 45
year: '2011'
...
---
_id: '3335'
abstract:
- lang: eng
  text: We study the topology of the Megaparsec Cosmic Web in terms of the scale-dependent
    Betti numbers, which formalize the topological information content of the cosmic
    mass distribution. While the Betti numbers do not fully quantify topology, they
    extend the information beyond conventional cosmological studies of topology in
    terms of genus and Euler characteristic. The richer information content of Betti
    numbers goes along the availability of fast algorithms to compute them. For continuous
    density fields, we determine the scale-dependence of Betti numbers by invoking
    the cosmologically familiar filtration of sublevel or superlevel sets defined
    by density thresholds. For the discrete galaxy distribution, however, the analysis
    is based on the alpha shapes of the particles. These simplicial complexes constitute
    an ordered sequence of nested subsets of the Delaunay tessellation, a filtration
    defined by the scale parameter, α. As they are homotopy equivalent to the sublevel
    sets of the distance field, they are an excellent tool for assessing the topological
    structure of a discrete point distribution. In order to develop an intuitive understanding
    for the behavior of Betti numbers as a function of α, and their relation to the
    morphological patterns in the Cosmic Web, we first study them within the context
    of simple heuristic Voronoi clustering models. These can be tuned to consist of
    specific morphological elements of the Cosmic Web, i.e. clusters, filaments, or
    sheets. To elucidate the relative prominence of the various Betti numbers in different
    stages of morphological evolution, we introduce the concept of alpha tracks. Subsequently,
    we address the topology of structures emerging in the standard LCDM scenario and
    in cosmological scenarios with alternative dark energy content. The evolution
    of the Betti numbers is shown to reflect the hierarchical evolution of the Cosmic
    Web. We also demonstrate that the scale-dependence of the Betti numbers yields
    a promising measure of cosmological parameters, with a potential to help in determining
    the nature of dark energy and to probe primordial non-Gaussianities. We also discuss
    the expected Betti numbers as a function of the density threshold for superlevel
    sets of a Gaussian random field. Finally, we introduce the concept of persistent
    homology. It measures scale levels of the mass distribution and allows us to separate
    small from large scale features. Within the context of the hierarchical cosmic
    structure formation, persistence provides a natural formalism for a multiscale
    topology study of the Cosmic Web.
alternative_title:
- LNCS
arxiv: 1
author:
- first_name: Rien
  full_name: Van De Weygaert, Rien
  last_name: Van De Weygaert
- first_name: Gert
  full_name: Vegter, Gert
  last_name: Vegter
- first_name: Herbert
  full_name: Edelsbrunner, Herbert
  id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
  last_name: Edelsbrunner
  orcid: 0000-0002-9823-6833
- first_name: Bernard
  full_name: Jones, Bernard
  last_name: Jones
- first_name: Pratyush
  full_name: Pranav, Pratyush
  last_name: Pranav
- first_name: Changbom
  full_name: Park, Changbom
  last_name: Park
- first_name: Wojciech
  full_name: Hellwing, Wojciech
  last_name: Hellwing
- first_name: Bob
  full_name: Eldering, Bob
  last_name: Eldering
- first_name: Nico
  full_name: Kruithof, Nico
  last_name: Kruithof
- first_name: Patrick
  full_name: Bos, Patrick
  last_name: Bos
- first_name: Johan
  full_name: Hidding, Johan
  last_name: Hidding
- first_name: Job
  full_name: Feldbrugge, Job
  last_name: Feldbrugge
- first_name: Eline
  full_name: Ten Have, Eline
  last_name: Ten Have
- first_name: Matti
  full_name: Van Engelen, Matti
  last_name: Van Engelen
- first_name: Manuel
  full_name: Caroli, Manuel
  last_name: Caroli
- first_name: Monique
  full_name: Teillaud, Monique
  last_name: Teillaud
citation:
  ama: 'Van De Weygaert R, Vegter G, Edelsbrunner H, et al. Alpha, Betti and the Megaparsec
    Universe: On the topology of the Cosmic Web. In: Gavrilova M, Tan K, Mostafavi
    M, eds. <i>Transactions on Computational Science XIV</i>. Vol 6970. Special Issue
    on Voronoi Diagrams and Delaunay Triangulation. Springer; 2011:60-101. doi:<a
    href="https://doi.org/10.1007/978-3-642-25249-5_3">10.1007/978-3-642-25249-5_3</a>'
  apa: 'Van De Weygaert, R., Vegter, G., Edelsbrunner, H., Jones, B., Pranav, P.,
    Park, C., … Teillaud, M. (2011). Alpha, Betti and the Megaparsec Universe: On
    the topology of the Cosmic Web. In M. Gavrilova, K. Tan, &#38; M. Mostafavi (Eds.),
    <i>Transactions on Computational Science XIV</i> (Vol. 6970, pp. 60–101). Springer.
    <a href="https://doi.org/10.1007/978-3-642-25249-5_3">https://doi.org/10.1007/978-3-642-25249-5_3</a>'
  chicago: 'Van De Weygaert, Rien, Gert Vegter, Herbert Edelsbrunner, Bernard Jones,
    Pratyush Pranav, Changbom Park, Wojciech Hellwing, et al. “Alpha, Betti and the
    Megaparsec Universe: On the Topology of the Cosmic Web.” In <i>Transactions on
    Computational Science XIV</i>, edited by Marina Gavrilova, Kenneth Tan, and Mir
    Mostafavi, 6970:60–101. Special Issue on Voronoi Diagrams and Delaunay Triangulation.
    Springer, 2011. <a href="https://doi.org/10.1007/978-3-642-25249-5_3">https://doi.org/10.1007/978-3-642-25249-5_3</a>.'
  ieee: 'R. Van De Weygaert <i>et al.</i>, “Alpha, Betti and the Megaparsec Universe:
    On the topology of the Cosmic Web,” in <i>Transactions on Computational Science
    XIV</i>, vol. 6970, M. Gavrilova, K. Tan, and M. Mostafavi, Eds. Springer, 2011,
    pp. 60–101.'
  ista: 'Van De Weygaert R, Vegter G, Edelsbrunner H, Jones B, Pranav P, Park C, Hellwing
    W, Eldering B, Kruithof N, Bos P, Hidding J, Feldbrugge J, Ten Have E, Van Engelen
    M, Caroli M, Teillaud M. 2011.Alpha, Betti and the Megaparsec Universe: On the
    topology of the Cosmic Web. In: Transactions on Computational Science XIV. LNCS,
    vol. 6970, 60–101.'
  mla: 'Van De Weygaert, Rien, et al. “Alpha, Betti and the Megaparsec Universe: On
    the Topology of the Cosmic Web.” <i>Transactions on Computational Science XIV</i>,
    edited by Marina Gavrilova et al., vol. 6970, Springer, 2011, pp. 60–101, doi:<a
    href="https://doi.org/10.1007/978-3-642-25249-5_3">10.1007/978-3-642-25249-5_3</a>.'
  short: R. Van De Weygaert, G. Vegter, H. Edelsbrunner, B. Jones, P. Pranav, C. Park,
    W. Hellwing, B. Eldering, N. Kruithof, P. Bos, J. Hidding, J. Feldbrugge, E. Ten
    Have, M. Van Engelen, M. Caroli, M. Teillaud, in:, M. Gavrilova, K. Tan, M. Mostafavi
    (Eds.), Transactions on Computational Science XIV, Springer, 2011, pp. 60–101.
date_created: 2018-12-11T12:02:44Z
date_published: 2011-11-09T00:00:00Z
date_updated: 2021-01-12T07:42:44Z
day: '09'
department:
- _id: HeEd
doi: 10.1007/978-3-642-25249-5_3
editor:
- first_name: Marina
  full_name: Gavrilova, Marina
  last_name: Gavrilova
- first_name: Kenneth
  full_name: Tan, Kenneth
  last_name: Tan
- first_name: Mir
  full_name: Mostafavi, Mir
  last_name: Mostafavi
external_id:
  arxiv:
  - '1306.3640'
intvolume: '      6970'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://arxiv.org/abs/1306.3640
month: '11'
oa: 1
oa_version: Preprint
page: 60 - 101
publication: Transactions on Computational Science XIV
publication_status: published
publisher: Springer
publist_id: '3295'
quality_controlled: '1'
scopus_import: 1
series_title: Special Issue on Voronoi Diagrams and Delaunay Triangulation
status: public
title: 'Alpha, Betti and the Megaparsec Universe: On the topology of the Cosmic Web'
type: book_chapter
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 6970
year: '2011'
...
---
_id: '3336'
abstract:
- lang: eng
  text: 'We introduce TopoCut: a new way to integrate knowledge about topological
    properties (TPs) into random field image segmentation model. Instead of including
    TPs as additional constraints during minimization of the energy function, we devise
    an efficient algorithm for modifying the unary potentials such that the resulting
    segmentation is guaranteed with the desired properties. Our method is more flexible
    in the sense that it handles more topology constraints than previous methods,
    which were only able to enforce pairwise or global connectivity. In particular,
    our method is very fast, making it for the first time possible to enforce global
    topological properties in practical image segmentation tasks.'
acknowledgement: The first author is supported by the Austrian Science Fund (FWF)
  grant No. P20134-N13. The authors would like to thank Sebastian Nowozin for helpful
  discussions.
article_processing_charge: No
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Daniel
  full_name: Freedman, Daniel
  last_name: Freedman
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
citation:
  ama: 'Chen C, Freedman D, Lampert C. Enforcing topological constraints in random
    field image segmentation. In: <i>CVPR: Computer Vision and Pattern Recognition</i>.
    IEEE; 2011:2089-2096. doi:<a href="https://doi.org/10.1109/CVPR.2011.5995503">10.1109/CVPR.2011.5995503</a>'
  apa: 'Chen, C., Freedman, D., &#38; Lampert, C. (2011). Enforcing topological constraints
    in random field image segmentation. In <i>CVPR: Computer Vision and Pattern Recognition</i>
    (pp. 2089–2096). Colorado Springs, CO, United States: IEEE. <a href="https://doi.org/10.1109/CVPR.2011.5995503">https://doi.org/10.1109/CVPR.2011.5995503</a>'
  chicago: 'Chen, Chao, Daniel Freedman, and Christoph Lampert. “Enforcing Topological
    Constraints in Random Field Image Segmentation.” In <i>CVPR: Computer Vision and
    Pattern Recognition</i>, 2089–96. IEEE, 2011. <a href="https://doi.org/10.1109/CVPR.2011.5995503">https://doi.org/10.1109/CVPR.2011.5995503</a>.'
  ieee: 'C. Chen, D. Freedman, and C. Lampert, “Enforcing topological constraints
    in random field image segmentation,” in <i>CVPR: Computer Vision and Pattern Recognition</i>,
    Colorado Springs, CO, United States, 2011, pp. 2089–2096.'
  ista: 'Chen C, Freedman D, Lampert C. 2011. Enforcing topological constraints in
    random field image segmentation. CVPR: Computer Vision and Pattern Recognition.
    CVPR: Conference on Computer Vision and Pattern Recognition, 2089–2096.'
  mla: 'Chen, Chao, et al. “Enforcing Topological Constraints in Random Field Image
    Segmentation.” <i>CVPR: Computer Vision and Pattern Recognition</i>, IEEE, 2011,
    pp. 2089–96, doi:<a href="https://doi.org/10.1109/CVPR.2011.5995503">10.1109/CVPR.2011.5995503</a>.'
  short: 'C. Chen, D. Freedman, C. Lampert, in:, CVPR: Computer Vision and Pattern
    Recognition, IEEE, 2011, pp. 2089–2096.'
conference:
  end_date: 2011-06-25
  location: Colorado Springs, CO, United States
  name: 'CVPR: Conference on Computer Vision and Pattern Recognition'
  start_date: 2011-06-20
date_created: 2018-12-11T12:02:45Z
date_published: 2011-07-22T00:00:00Z
date_updated: 2023-02-23T12:23:56Z
day: '22'
department:
- _id: HeEd
- _id: ChLa
doi: 10.1109/CVPR.2011.5995503
language:
- iso: eng
month: '07'
oa_version: None
page: 2089 - 2096
publication: 'CVPR: Computer Vision and Pattern Recognition'
publication_identifier:
  eisbn:
  - 978-1-4577-0395-9
  isbn:
  - 978-1-4577-0394-2
publication_status: published
publisher: IEEE
publist_id: '3294'
quality_controlled: '1'
related_material:
  record:
  - id: '5386'
    relation: earlier_version
    status: public
scopus_import: '1'
status: public
title: Enforcing topological constraints in random field image segmentation
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
