---
_id: '13267'
abstract:
- lang: eng
  text: Three-dimensional (3D) reconstruction of living brain tissue down to an individual
    synapse level would create opportunities for decoding the dynamics and structure–function
    relationships of the brain’s complex and dense information processing network;
    however, this has been hindered by insufficient 3D resolution, inadequate signal-to-noise
    ratio and prohibitive light burden in optical imaging, whereas electron microscopy
    is inherently static. Here we solved these challenges by developing an integrated
    optical/machine-learning technology, LIONESS (live information-optimized nanoscopy
    enabling saturated segmentation). This leverages optical modifications to stimulated
    emission depletion microscopy in comprehensively, extracellularly labeled tissue
    and previous information on sample structure via machine learning to simultaneously
    achieve isotropic super-resolution, high signal-to-noise ratio and compatibility
    with living tissue. This allows dense deep-learning-based instance segmentation
    and 3D reconstruction at a synapse level, incorporating molecular, activity and
    morphodynamic information. LIONESS opens up avenues for studying the dynamic functional
    (nano-)architecture of living brain tissue.
acknowledged_ssus:
- _id: ScienComp
- _id: Bio
- _id: PreCl
- _id: E-Lib
- _id: LifeSc
- _id: M-Shop
acknowledgement: "We thank J. Vorlaufer, N. Agudelo and A. Wartak for microscope maintenance
  and troubleshooting, C. Kreuzinger and A. Freeman for technical assistance, M. Šuplata
  for hardware control support and M. Cunha dos Santos for initial exploration of
  software. We\r\nthank P. Henderson for advice on deep-learning training and M. Sixt,
  S. Boyd and T. Weiss for discussions and critical reading of the manuscript. L.
  Lavis (Janelia Research Campus) generously provided the JF585-HaloTag ligand. We
  acknowledge expert support by IST\r\nAustria’s scientific computing, imaging and
  optics, preclinical, library and laboratory support facilities and by the Miba machine
  shop. We gratefully acknowledge funding by the following sources: Austrian Science
  Fund (F.W.F.) grant no. I3600-B27 (J.G.D.), grant no. DK W1232\r\n(J.G.D. and J.M.M.)
  and grant no. Z 312-B27, Wittgenstein award (P.J.); the Gesellschaft für Forschungsförderung
  NÖ grant no. LSC18-022 (J.G.D.); an ISTA Interdisciplinary project grant (J.G.D.
  and B.B.); the European Union’s Horizon 2020 research and innovation programme,\r\nMarie-Skłodowska
  Curie grant 665385 (J.M.M. and J.L.); the European Union’s Horizon 2020 research
  and innovation programme, European Research Council grant no. 715767, MATERIALIZABLE
  (B.B.); grant no. 715508, REVERSEAUTISM (G.N.); grant no. 695568, SYNNOVATE (S.G.N.G.);
  and grant no. 692692, GIANTSYN (P.J.); the Simons\r\nFoundation Autism Research
  Initiative grant no. 529085 (S.G.N.G.); the Wellcome Trust Technology Development
  grant no. 202932 (S.G.N.G.); the Marie Skłodowska-Curie Actions Individual Fellowship
  no. 101026635 under the EU Horizon 2020 program (J.F.W.);\r\nthe Human Frontier
  Science Program postdoctoral fellowship LT000557/2018 (W.J.); and the National Science
  Foundation grant no. IIS-1835231 (H.P.) and NCS-FO-2124179 (H.P.)."
article_processing_charge: Yes
article_type: original
author:
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
  orcid: 0000-0001-5665-0430
- first_name: Julia M
  full_name: Michalska, Julia M
  id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
  last_name: Michalska
  orcid: 0000-0003-3862-1235
- first_name: Julia
  full_name: Lyudchik, Julia
  id: 46E28B80-F248-11E8-B48F-1D18A9856A87
  last_name: Lyudchik
- first_name: Donglai
  full_name: Wei, Donglai
  last_name: Wei
- first_name: Zudi
  full_name: Lin, Zudi
  last_name: Lin
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Jakob
  full_name: Troidl, Jakob
  last_name: Troidl
- first_name: Johanna
  full_name: Beyer, Johanna
  last_name: Beyer
- first_name: Yoav
  full_name: Ben Simon, Yoav
  id: 43DF3136-F248-11E8-B48F-1D18A9856A87
  last_name: Ben Simon
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Wiebke
  full_name: Jahr, Wiebke
  id: 425C1CE8-F248-11E8-B48F-1D18A9856A87
  last_name: Jahr
- first_name: Alban
  full_name: Cenameri, Alban
  id: 9ac8f577-2357-11eb-997a-e566c5550886
  last_name: Cenameri
- first_name: Johannes
  full_name: Broichhagen, Johannes
  last_name: Broichhagen
- first_name: Seth G.N.
  full_name: Grant, Seth G.N.
  last_name: Grant
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Gaia
  full_name: Novarino, Gaia
  id: 3E57A680-F248-11E8-B48F-1D18A9856A87
  last_name: Novarino
  orcid: 0000-0002-7673-7178
- first_name: Hanspeter
  full_name: Pfister, Hanspeter
  last_name: Pfister
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
citation:
  ama: Velicky P, Miguel Villalba E, Michalska JM, et al. Dense 4D nanoscale reconstruction
    of living brain tissue. <i>Nature Methods</i>. 2023;20:1256-1265. doi:<a href="https://doi.org/10.1038/s41592-023-01936-6">10.1038/s41592-023-01936-6</a>
  apa: Velicky, P., Miguel Villalba, E., Michalska, J. M., Lyudchik, J., Wei, D.,
    Lin, Z., … Danzl, J. G. (2023). Dense 4D nanoscale reconstruction of living brain
    tissue. <i>Nature Methods</i>. Springer Nature. <a href="https://doi.org/10.1038/s41592-023-01936-6">https://doi.org/10.1038/s41592-023-01936-6</a>
  chicago: Velicky, Philipp, Eder Miguel Villalba, Julia M Michalska, Julia Lyudchik,
    Donglai Wei, Zudi Lin, Jake Watson, et al. “Dense 4D Nanoscale Reconstruction
    of Living Brain Tissue.” <i>Nature Methods</i>. Springer Nature, 2023. <a href="https://doi.org/10.1038/s41592-023-01936-6">https://doi.org/10.1038/s41592-023-01936-6</a>.
  ieee: P. Velicky <i>et al.</i>, “Dense 4D nanoscale reconstruction of living brain
    tissue,” <i>Nature Methods</i>, vol. 20. Springer Nature, pp. 1256–1265, 2023.
  ista: Velicky P, Miguel Villalba E, Michalska JM, Lyudchik J, Wei D, Lin Z, Watson
    J, Troidl J, Beyer J, Ben Simon Y, Sommer CM, Jahr W, Cenameri A, Broichhagen
    J, Grant SGN, Jonas PM, Novarino G, Pfister H, Bickel B, Danzl JG. 2023. Dense
    4D nanoscale reconstruction of living brain tissue. Nature Methods. 20, 1256–1265.
  mla: Velicky, Philipp, et al. “Dense 4D Nanoscale Reconstruction of Living Brain
    Tissue.” <i>Nature Methods</i>, vol. 20, Springer Nature, 2023, pp. 1256–65, doi:<a
    href="https://doi.org/10.1038/s41592-023-01936-6">10.1038/s41592-023-01936-6</a>.
  short: P. Velicky, E. Miguel Villalba, J.M. Michalska, J. Lyudchik, D. Wei, Z. Lin,
    J. Watson, J. Troidl, J. Beyer, Y. Ben Simon, C.M. Sommer, W. Jahr, A. Cenameri,
    J. Broichhagen, S.G.N. Grant, P.M. Jonas, G. Novarino, H. Pfister, B. Bickel,
    J.G. Danzl, Nature Methods 20 (2023) 1256–1265.
date_created: 2023-07-23T22:01:13Z
date_published: 2023-08-01T00:00:00Z
date_updated: 2024-01-10T08:37:48Z
day: '01'
department:
- _id: PeJo
- _id: GaNo
- _id: BeBi
- _id: JoDa
- _id: Bio
doi: 10.1038/s41592-023-01936-6
ec_funded: 1
external_id:
  isi:
  - '001025621500001'
  pmid:
  - '37429995'
intvolume: '        20'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1038/s41592-023-01936-6
month: '08'
oa: 1
oa_version: Published Version
page: 1256-1265
pmid: 1
project:
- _id: 265CB4D0-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03600
  name: Optical control of synaptic function via adhesion molecules
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: The Wittgenstein Prize
- _id: 23889792-32DE-11EA-91FC-C7463DDC885E
  name: High content imaging to decode human immune cell interactions in health and
    allergic disease
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715767'
  name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
    Modeling'
- _id: 25444568-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715508'
  name: Probing the Reversibility of Autism Spectrum Disorders by Employing in vivo
    and in vitro Models
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glumatergic synapse
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
- _id: 2668BFA0-B435-11E9-9278-68D0E5697425
  grant_number: LT00057
  name: High-speed 3D-nanoscopy to study the role of adhesion during 3D cell migration
publication: Nature Methods
publication_identifier:
  eissn:
  - 1548-7105
  issn:
  - 1548-7091
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/danzllab/LIONESS
  record:
  - id: '12817'
    relation: research_data
    status: public
  - id: '14770'
    relation: shorter_version
    status: public
scopus_import: '1'
status: public
title: Dense 4D nanoscale reconstruction of living brain tissue
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 20
year: '2023'
...
---
_id: '11943'
abstract:
- lang: eng
  text: Complex wiring between neurons underlies the information-processing network
    enabling all brain functions, including cognition and memory. For understanding
    how the network is structured, processes information, and changes over time, comprehensive
    visualization of the architecture of living brain tissue with its cellular and
    molecular components would open up major opportunities. However, electron microscopy
    (EM) provides nanometre-scale resolution required for full <jats:italic>in-silico</jats:italic>
    reconstruction<jats:sup>1–5</jats:sup>, yet is limited to fixed specimens and
    static representations. Light microscopy allows live observation, with super-resolution
    approaches<jats:sup>6–12</jats:sup> facilitating nanoscale visualization, but
    comprehensive 3D-reconstruction of living brain tissue has been hindered by tissue
    photo-burden, photobleaching, insufficient 3D-resolution, and inadequate signal-to-noise
    ratio (SNR). Here we demonstrate saturated reconstruction of living brain tissue.
    We developed an integrated imaging and analysis technology, adapting stimulated
    emission depletion (STED) microscopy<jats:sup>6,13</jats:sup> in extracellularly
    labelled tissue<jats:sup>14</jats:sup> for high SNR and near-isotropic resolution.
    Centrally, a two-stage deep-learning approach leveraged previously obtained information
    on sample structure to drastically reduce photo-burden and enable automated volumetric
    reconstruction down to single synapse level. Live reconstruction provides unbiased
    analysis of tissue architecture across time in relation to functional activity
    and targeted activation, and contextual understanding of molecular labelling.
    This adoptable technology will facilitate novel insights into the dynamic functional
    architecture of living brain tissue.
article_processing_charge: No
author:
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
  orcid: 0000-0001-5665-0430
- first_name: Julia M
  full_name: Michalska, Julia M
  id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
  last_name: Michalska
  orcid: 0000-0003-3862-1235
- first_name: Donglai
  full_name: Wei, Donglai
  last_name: Wei
- first_name: Zudi
  full_name: Lin, Zudi
  last_name: Lin
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Jakob
  full_name: Troidl, Jakob
  last_name: Troidl
- first_name: Johanna
  full_name: Beyer, Johanna
  last_name: Beyer
- first_name: Yoav
  full_name: Ben Simon, Yoav
  id: 43DF3136-F248-11E8-B48F-1D18A9856A87
  last_name: Ben Simon
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Wiebke
  full_name: Jahr, Wiebke
  id: 425C1CE8-F248-11E8-B48F-1D18A9856A87
  last_name: Jahr
- first_name: Alban
  full_name: Cenameri, Alban
  id: 9ac8f577-2357-11eb-997a-e566c5550886
  last_name: Cenameri
- first_name: Johannes
  full_name: Broichhagen, Johannes
  last_name: Broichhagen
- first_name: Seth G. N.
  full_name: Grant, Seth G. N.
  last_name: Grant
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Gaia
  full_name: Novarino, Gaia
  id: 3E57A680-F248-11E8-B48F-1D18A9856A87
  last_name: Novarino
  orcid: 0000-0002-7673-7178
- first_name: Hanspeter
  full_name: Pfister, Hanspeter
  last_name: Pfister
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
citation:
  ama: Velicky P, Miguel Villalba E, Michalska JM, et al. Saturated reconstruction
    of living brain tissue. <i>bioRxiv</i>. doi:<a href="https://doi.org/10.1101/2022.03.16.484431">10.1101/2022.03.16.484431</a>
  apa: Velicky, P., Miguel Villalba, E., Michalska, J. M., Wei, D., Lin, Z., Watson,
    J., … Danzl, J. G. (n.d.). Saturated reconstruction of living brain tissue. <i>bioRxiv</i>.
    Cold Spring Harbor Laboratory. <a href="https://doi.org/10.1101/2022.03.16.484431">https://doi.org/10.1101/2022.03.16.484431</a>
  chicago: Velicky, Philipp, Eder Miguel Villalba, Julia M Michalska, Donglai Wei,
    Zudi Lin, Jake Watson, Jakob Troidl, et al. “Saturated Reconstruction of Living
    Brain Tissue.” <i>BioRxiv</i>. Cold Spring Harbor Laboratory, n.d. <a href="https://doi.org/10.1101/2022.03.16.484431">https://doi.org/10.1101/2022.03.16.484431</a>.
  ieee: P. Velicky <i>et al.</i>, “Saturated reconstruction of living brain tissue,”
    <i>bioRxiv</i>. Cold Spring Harbor Laboratory.
  ista: Velicky P, Miguel Villalba E, Michalska JM, Wei D, Lin Z, Watson J, Troidl
    J, Beyer J, Ben Simon Y, Sommer CM, Jahr W, Cenameri A, Broichhagen J, Grant SGN,
    Jonas PM, Novarino G, Pfister H, Bickel B, Danzl JG. Saturated reconstruction
    of living brain tissue. bioRxiv, <a href="https://doi.org/10.1101/2022.03.16.484431">10.1101/2022.03.16.484431</a>.
  mla: Velicky, Philipp, et al. “Saturated Reconstruction of Living Brain Tissue.”
    <i>BioRxiv</i>, Cold Spring Harbor Laboratory, doi:<a href="https://doi.org/10.1101/2022.03.16.484431">10.1101/2022.03.16.484431</a>.
  short: P. Velicky, E. Miguel Villalba, J.M. Michalska, D. Wei, Z. Lin, J. Watson,
    J. Troidl, J. Beyer, Y. Ben Simon, C.M. Sommer, W. Jahr, A. Cenameri, J. Broichhagen,
    S.G.N. Grant, P.M. Jonas, G. Novarino, H. Pfister, B. Bickel, J.G. Danzl, BioRxiv
    (n.d.).
date_created: 2022-08-23T11:07:59Z
date_published: 2022-05-09T00:00:00Z
date_updated: 2024-03-25T23:30:11Z
day: '09'
department:
- _id: PeJo
- _id: GaNo
- _id: BeBi
- _id: JoDa
doi: 10.1101/2022.03.16.484431
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2022.03.16.484431
month: '05'
oa: 1
oa_version: Preprint
publication: bioRxiv
publication_status: submitted
publisher: Cold Spring Harbor Laboratory
related_material:
  record:
  - id: '12470'
    relation: dissertation_contains
    status: public
status: public
title: Saturated reconstruction of living brain tissue
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '6195'
abstract:
- lang: eng
  text: In the context of robotic manipulation and grasping, the shift from a view
    that is static (force closure of a single posture) and contact-deprived (only
    contact for force closure is allowed, everything else is obstacle) towards a view
    that is dynamic and contact-rich (soft manipulation) has led to an increased interest
    in soft hands. These hands can easily exploit environmental constraints and object
    surfaces without risk, and safely interact with humans, but present also some
    challenges. Designing them is difficult, as well as predicting, modelling, and
    “programming” their interactions with the objects and the environment. This paper
    tackles the problem of simulating them in a fast and effective way, leveraging
    on novel and existing simulation technologies. We present a triple-layered simulation
    framework where dynamic properties such as stiffness are determined from slow
    but accurate FEM simulation data once, and then condensed into a lumped parameter
    model that can be used to fast simulate soft fingers and soft hands. We apply
    our approach to the simulation of soft pneumatic fingers.
article_number: '8461106'
article_processing_charge: No
author:
- first_name: Maria
  full_name: Pozzi, Maria
  last_name: Pozzi
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
  orcid: 0000-0001-5665-0430
- first_name: Raphael
  full_name: Deimel, Raphael
  last_name: Deimel
- first_name: Monica
  full_name: Malvezzi, Monica
  last_name: Malvezzi
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
- first_name: Oliver
  full_name: Brock, Oliver
  last_name: Brock
- first_name: Domenico
  full_name: Prattichizzo, Domenico
  last_name: Prattichizzo
citation:
  ama: 'Pozzi M, Miguel Villalba E, Deimel R, et al. Efficient FEM-based simulation
    of soft robots modeled as kinematic chains. In: IEEE; 2018. doi:<a href="https://doi.org/10.1109/icra.2018.8461106">10.1109/icra.2018.8461106</a>'
  apa: 'Pozzi, M., Miguel Villalba, E., Deimel, R., Malvezzi, M., Bickel, B., Brock,
    O., &#38; Prattichizzo, D. (2018). Efficient FEM-based simulation of soft robots
    modeled as kinematic chains. Presented at the ICRA: International Conference on
    Robotics and Automation, Brisbane, Australia: IEEE. <a href="https://doi.org/10.1109/icra.2018.8461106">https://doi.org/10.1109/icra.2018.8461106</a>'
  chicago: Pozzi, Maria, Eder Miguel Villalba, Raphael Deimel, Monica Malvezzi, Bernd
    Bickel, Oliver Brock, and Domenico Prattichizzo. “Efficient FEM-Based Simulation
    of Soft Robots Modeled as Kinematic Chains.” IEEE, 2018. <a href="https://doi.org/10.1109/icra.2018.8461106">https://doi.org/10.1109/icra.2018.8461106</a>.
  ieee: 'M. Pozzi <i>et al.</i>, “Efficient FEM-based simulation of soft robots modeled
    as kinematic chains,” presented at the ICRA: International Conference on Robotics
    and Automation, Brisbane, Australia, 2018.'
  ista: 'Pozzi M, Miguel Villalba E, Deimel R, Malvezzi M, Bickel B, Brock O, Prattichizzo
    D. 2018. Efficient FEM-based simulation of soft robots modeled as kinematic chains.
    ICRA: International Conference on Robotics and Automation, 8461106.'
  mla: Pozzi, Maria, et al. <i>Efficient FEM-Based Simulation of Soft Robots Modeled
    as Kinematic Chains</i>. 8461106, IEEE, 2018, doi:<a href="https://doi.org/10.1109/icra.2018.8461106">10.1109/icra.2018.8461106</a>.
  short: M. Pozzi, E. Miguel Villalba, R. Deimel, M. Malvezzi, B. Bickel, O. Brock,
    D. Prattichizzo, in:, IEEE, 2018.
conference:
  end_date: 2018-05-25
  location: Brisbane, Australia
  name: 'ICRA: International Conference on Robotics and Automation'
  start_date: 2018-05-21
date_created: 2019-04-04T09:50:38Z
date_published: 2018-09-10T00:00:00Z
date_updated: 2023-09-19T14:49:03Z
day: '10'
department:
- _id: BeBi
doi: 10.1109/icra.2018.8461106
external_id:
  isi:
  - '000446394503031'
isi: 1
language:
- iso: eng
month: '09'
oa_version: None
publication_identifier:
  isbn:
  - '9781538630815'
publication_status: published
publisher: IEEE
quality_controlled: '1'
scopus_import: '1'
status: public
title: Efficient FEM-based simulation of soft robots modeled as kinematic chains
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '1364'
abstract:
- lang: eng
  text: We present a computational method for designing wire sculptures consisting
    of interlocking wires. Our method allows the computation of aesthetically pleasing
    structures that are structurally stable, efficiently fabricatable with a 2D wire
    bending machine, and assemblable without the need of additional connectors. Starting
    from a set of planar contours provided by the user, our method automatically tests
    for the feasibility of a design, determines a discrete ordering of wires at intersection
    points, and optimizes for the rest shape of the individual wires to maximize structural
    stability under frictional contact. In addition to their application to art, wire
    sculptures present an extremely efficient and fast alternative for low-fidelity
    rapid prototyping because manufacturing time and required material linearly scales
    with the physical size of objects. We demonstrate the effectiveness of our approach
    on a varied set of examples, all of which we fabricated.
acknowledgement: This project has received funding from the European Union’s Horizon
  2020 research and innovation programme under grant agreement No 645599.
alternative_title:
- ACM Transactions on Graphics
article_number: '86'
author:
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
- first_name: Mathias
  full_name: Lepoutre, Mathias
  last_name: Lepoutre
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
citation:
  ama: 'Miguel Villalba E, Lepoutre M, Bickel B. Computational design of stable planar-rod
    structures. In: Vol 35. ACM; 2016. doi:<a href="https://doi.org/10.1145/2897824.2925978">10.1145/2897824.2925978</a>'
  apa: 'Miguel Villalba, E., Lepoutre, M., &#38; Bickel, B. (2016). Computational
    design of stable planar-rod structures (Vol. 35). Presented at the ACM SIGGRAPH,
    Anaheim, CA, USA: ACM. <a href="https://doi.org/10.1145/2897824.2925978">https://doi.org/10.1145/2897824.2925978</a>'
  chicago: Miguel Villalba, Eder, Mathias Lepoutre, and Bernd Bickel. “Computational
    Design of Stable Planar-Rod Structures,” Vol. 35. ACM, 2016. <a href="https://doi.org/10.1145/2897824.2925978">https://doi.org/10.1145/2897824.2925978</a>.
  ieee: E. Miguel Villalba, M. Lepoutre, and B. Bickel, “Computational design of stable
    planar-rod structures,” presented at the ACM SIGGRAPH, Anaheim, CA, USA, 2016,
    vol. 35, no. 4.
  ista: Miguel Villalba E, Lepoutre M, Bickel B. 2016. Computational design of stable
    planar-rod structures. ACM SIGGRAPH, ACM Transactions on Graphics, vol. 35, 86.
  mla: Miguel Villalba, Eder, et al. <i>Computational Design of Stable Planar-Rod
    Structures</i>. Vol. 35, no. 4, 86, ACM, 2016, doi:<a href="https://doi.org/10.1145/2897824.2925978">10.1145/2897824.2925978</a>.
  short: E. Miguel Villalba, M. Lepoutre, B. Bickel, in:, ACM, 2016.
conference:
  end_date: 2016-07-28
  location: Anaheim, CA, USA
  name: ACM SIGGRAPH
  start_date: 2016-07-24
date_created: 2018-12-11T11:51:36Z
date_published: 2016-07-01T00:00:00Z
date_updated: 2021-01-12T06:50:10Z
day: '01'
ddc:
- '006'
department:
- _id: BeBi
doi: 10.1145/2897824.2925978
ec_funded: 1
file:
- access_level: open_access
  checksum: d00c2664a43d945df8876ea0193734e3
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:01Z
  date_updated: 2020-07-14T12:44:47Z
  file_id: '4853'
  file_name: IST-2017-763-v1+1_wirebending.pdf
  file_size: 44766392
  relation: main_file
file_date_updated: 2020-07-14T12:44:47Z
has_accepted_license: '1'
intvolume: '        35'
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 25082902-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '645599'
  name: Soft-bodied intelligence for Manipulation
publication_status: published
publisher: ACM
publist_id: '5878'
pubrep_id: '763'
quality_controlled: '1'
scopus_import: 1
status: public
title: Computational design of stable planar-rod structures
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 35
year: '2016'
...
---
_id: '1414'
abstract:
- lang: eng
  text: In this paper, we present a method to model hyperelasticity that is well suited
    for representing the nonlinearity of real-world objects, as well as for estimating
    it from deformation examples. Previous approaches suffer several limitations,
    such as lack of integrability of elastic forces, failure to enforce energy convexity,
    lack of robustness of parameter estimation, or difficulty to model cross-modal
    effects. Our method avoids these problems by relying on a general energy-based
    definition of elastic properties. The accuracy of the resulting elastic model
    is maximized by defining an additive model of separable energy terms, which allow
    progressive parameter estimation. In addition, our method supports efficient modeling
    of extreme nonlinearities thanks to energy-limiting constraints. We combine our
    energy-based model with an optimization method to estimate model parameters from
    force-deformation examples, and we show successful modeling of diverse deformable
    objects, including cloth, human finger skin, and internal human anatomy in a medical
    imaging application.
acknowledgement: This work was funded in part by grants from the Spanish Ministry
  of Economy (TIN2012-35840), the European Research Council (ERC Starting Grant no.
  280135 Animetrics), and the EU FP7 (project no. 601165 WEARHAP).
author:
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
- first_name: David
  full_name: Miraut, David
  last_name: Miraut
- first_name: Miguel
  full_name: Otaduy, Miguel
  last_name: Otaduy
citation:
  ama: Miguel Villalba E, Miraut D, Otaduy M. Modeling and estimation of energy-based
    hyperelastic objects. <i>Computer Graphics Forum</i>. 2016;35(2):385-396. doi:<a
    href="https://doi.org/10.1111/cgf.12840">10.1111/cgf.12840</a>
  apa: Miguel Villalba, E., Miraut, D., &#38; Otaduy, M. (2016). Modeling and estimation
    of energy-based hyperelastic objects. <i>Computer Graphics Forum</i>. Wiley-Blackwell.
    <a href="https://doi.org/10.1111/cgf.12840">https://doi.org/10.1111/cgf.12840</a>
  chicago: Miguel Villalba, Eder, David Miraut, and Miguel Otaduy. “Modeling and Estimation
    of Energy-Based Hyperelastic Objects.” <i>Computer Graphics Forum</i>. Wiley-Blackwell,
    2016. <a href="https://doi.org/10.1111/cgf.12840">https://doi.org/10.1111/cgf.12840</a>.
  ieee: E. Miguel Villalba, D. Miraut, and M. Otaduy, “Modeling and estimation of
    energy-based hyperelastic objects,” <i>Computer Graphics Forum</i>, vol. 35, no.
    2. Wiley-Blackwell, pp. 385–396, 2016.
  ista: Miguel Villalba E, Miraut D, Otaduy M. 2016. Modeling and estimation of energy-based
    hyperelastic objects. Computer Graphics Forum. 35(2), 385–396.
  mla: Miguel Villalba, Eder, et al. “Modeling and Estimation of Energy-Based Hyperelastic
    Objects.” <i>Computer Graphics Forum</i>, vol. 35, no. 2, Wiley-Blackwell, 2016,
    pp. 385–96, doi:<a href="https://doi.org/10.1111/cgf.12840">10.1111/cgf.12840</a>.
  short: E. Miguel Villalba, D. Miraut, M. Otaduy, Computer Graphics Forum 35 (2016)
    385–396.
date_created: 2018-12-11T11:51:53Z
date_published: 2016-05-01T00:00:00Z
date_updated: 2021-01-12T06:50:35Z
day: '01'
department:
- _id: BeBi
doi: 10.1111/cgf.12840
intvolume: '        35'
issue: '2'
language:
- iso: eng
month: '05'
oa_version: None
page: 385 - 396
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5792'
quality_controlled: '1'
scopus_import: 1
status: public
title: Modeling and estimation of energy-based hyperelastic objects
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 35
year: '2016'
...
