[{"publication_status":"published","date_published":"2016-05-07T00:00:00Z","doi":"10.1145/2858036.2858354","quality_controlled":"1","status":"public","conference":{"start_date":"2016-05-07","location":"San Jose, California, USA","name":"CHI: Conference on Human Factors in Computing Systems","end_date":"2016-05-12"},"citation":{"ieee":"M. Bächer <i>et al.</i>, “DefSense: computational design of customized deformable input devices,” presented at the CHI: Conference on Human Factors in Computing Systems, San Jose, California, USA, 2016, pp. 3806–3816.","chicago":"Bächer, Moritz, Benjamin Hepp, Fabrizio Pece, Paul Kry, Bernd Bickel, Bernhard Thomaszewski, and Otmar Hilliges. “DefSense: Computational Design of Customized Deformable Input Devices,” 3806–16. ACM, 2016. <a href=\"https://doi.org/10.1145/2858036.2858354\">https://doi.org/10.1145/2858036.2858354</a>.","short":"M. Bächer, B. Hepp, F. Pece, P. Kry, B. Bickel, B. Thomaszewski, O. Hilliges, in:, ACM, 2016, pp. 3806–3816.","ama":"Bächer M, Hepp B, Pece F, et al. DefSense: computational design of customized deformable input devices. In: ACM; 2016:3806-3816. doi:<a href=\"https://doi.org/10.1145/2858036.2858354\">10.1145/2858036.2858354</a>","mla":"Bächer, Moritz, et al. <i>DefSense: Computational Design of Customized Deformable Input Devices</i>. ACM, 2016, pp. 3806–16, doi:<a href=\"https://doi.org/10.1145/2858036.2858354\">10.1145/2858036.2858354</a>.","ista":"Bächer M, Hepp B, Pece F, Kry P, Bickel B, Thomaszewski B, Hilliges O. 2016. DefSense: computational design of customized deformable input devices. CHI: Conference on Human Factors in Computing Systems, 3806–3816.","apa":"Bächer, M., Hepp, B., Pece, F., Kry, P., Bickel, B., Thomaszewski, B., &#38; Hilliges, O. (2016). DefSense: computational design of customized deformable input devices (pp. 3806–3816). Presented at the CHI: Conference on Human Factors in Computing Systems, San Jose, California, USA: ACM. <a href=\"https://doi.org/10.1145/2858036.2858354\">https://doi.org/10.1145/2858036.2858354</a>"},"language":[{"iso":"eng"}],"author":[{"first_name":"Moritz","last_name":"Bächer","full_name":"Bächer, Moritz"},{"first_name":"Benjamin","last_name":"Hepp","full_name":"Hepp, Benjamin"},{"first_name":"Fabrizio","last_name":"Pece","full_name":"Pece, Fabrizio"},{"full_name":"Kry, Paul","first_name":"Paul","last_name":"Kry"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd","last_name":"Bickel"},{"last_name":"Thomaszewski","first_name":"Bernhard","full_name":"Thomaszewski, Bernhard"},{"full_name":"Hilliges, Otmar","first_name":"Otmar","last_name":"Hilliges"}],"page":"3806 - 3816","date_updated":"2021-01-12T06:49:51Z","abstract":[{"lang":"eng","text":"We present a novel optimization-based algorithm for the design and fabrication of customized, deformable input devices, capable of continuously sensing their deformation. We propose to embed piezoresistive sensing elements into flexible 3D printed objects. These sensing elements are then utilized to recover rich and natural user interactions at runtime. Designing such objects is a challenging and hard problem if attempted manually for all but the simplest geometries and deformations. Our method simultaneously optimizes the internal routing of the sensing elements and computes a mapping from low-level sensor readings to user-specified outputs in order to minimize reconstruction error. We demonstrate the power and flexibility of the approach by designing and fabricating a set of flexible input devices. Our results indicate that the optimization-based design greatly outperforms manual routings in terms of reconstruction accuracy and thus interaction fidelity."}],"day":"07","type":"conference","month":"05","oa_version":"None","title":"DefSense: computational design of customized deformable input devices","date_created":"2018-12-11T11:51:21Z","publist_id":"5951","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","publisher":"ACM","acknowledgement":"We  thank  Damian  Karrer,   Rocco  Ghielmini  and  Jemin\r\nHwangbo for their help in our initial explorations. We would\r\nlike to thank Christian Schumacher for creating the video and\r\nC\r\n ́\r\necile Edwards-Rietmann for providing the voiceover. Mau-\r\nrizio Nitti helped us in designing our 3D characters. We thank\r\nChiara Daraio for insightful discussions on material proper-\r\nties and 3D printing.   We also thank the CHI reviewers for\r\ntheir feedback and guidance. Fabrizio Pece was supported by\r\nan ETH/Marie Curie fellowship (FEL-3314-1).","year":"2016","department":[{"_id":"BeBi"}],"_id":"1319","scopus_import":1},{"date_created":"2018-12-11T11:51:36Z","file_date_updated":"2020-07-14T12:44:47Z","volume":35,"type":"conference","month":"07","oa_version":"Preprint","date_updated":"2021-01-12T06:50:10Z","abstract":[{"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.","lang":"eng"}],"_id":"1364","year":"2016","acknowledgement":"This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 645599.","ddc":["006"],"date_published":"2016-07-01T00:00:00Z","has_accepted_license":"1","publication_status":"published","oa":1,"citation":{"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>.","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.","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>","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>","short":"E. Miguel Villalba, M. Lepoutre, B. Bickel, in:, ACM, 2016.","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.","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>."},"intvolume":"        35","status":"public","alternative_title":["ACM Transactions on Graphics"],"publist_id":"5878","article_number":"86","title":"Computational design of stable planar-rod structures","day":"01","file":[{"file_name":"IST-2017-763-v1+1_wirebending.pdf","creator":"system","relation":"main_file","content_type":"application/pdf","file_size":44766392,"checksum":"d00c2664a43d945df8876ea0193734e3","date_updated":"2020-07-14T12:44:47Z","file_id":"4853","access_level":"open_access","date_created":"2018-12-12T10:11:01Z"}],"author":[{"id":"3FB91342-F248-11E8-B48F-1D18A9856A87","full_name":"Miguel Villalba, Eder","last_name":"Miguel Villalba","first_name":"Eder"},{"first_name":"Mathias","last_name":"Lepoutre","full_name":"Lepoutre, Mathias"},{"orcid":"0000-0001-6511-9385","id":"49876194-F248-11E8-B48F-1D18A9856A87","full_name":"Bickel, Bernd","first_name":"Bernd","last_name":"Bickel"}],"scopus_import":1,"ec_funded":1,"department":[{"_id":"BeBi"}],"publisher":"ACM","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","doi":"10.1145/2897824.2925978","pubrep_id":"763","issue":"4","language":[{"iso":"eng"}],"conference":{"end_date":"2016-07-28","name":"ACM SIGGRAPH","location":"Anaheim, CA, USA","start_date":"2016-07-24"},"project":[{"call_identifier":"H2020","_id":"25082902-B435-11E9-9278-68D0E5697425","name":"Soft-bodied intelligence for Manipulation","grant_number":"645599"}]},{"status":"public","citation":{"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.","short":"E. Miguel Villalba, D. Miraut, M. Otaduy, Computer Graphics Forum 35 (2016) 385–396.","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>","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>."},"language":[{"iso":"eng"}],"issue":"2","intvolume":"        35","publication_status":"published","quality_controlled":"1","date_published":"2016-05-01T00:00:00Z","doi":"10.1111/cgf.12840","year":"2016","department":[{"_id":"BeBi"}],"publisher":"Wiley-Blackwell","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","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).","scopus_import":1,"publication":"Computer Graphics Forum","_id":"1414","date_updated":"2021-01-12T06:50:35Z","day":"01","abstract":[{"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.","lang":"eng"}],"month":"05","oa_version":"None","type":"journal_article","author":[{"full_name":"Miguel Villalba, Eder","id":"3FB91342-F248-11E8-B48F-1D18A9856A87","first_name":"Eder","last_name":"Miguel Villalba"},{"full_name":"Miraut, David","last_name":"Miraut","first_name":"David"},{"last_name":"Otaduy","first_name":"Miguel","full_name":"Otaduy, Miguel"}],"page":"385 - 396","publist_id":"5792","date_created":"2018-12-11T11:51:53Z","volume":35,"title":"Modeling and estimation of energy-based hyperelastic objects"},{"status":"public","conference":{"end_date":"2015-08-13","name":"SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques","location":"Los Angeles, CA, United States","start_date":"2015-08-09"},"intvolume":"        34","issue":"4","language":[{"iso":"eng"}],"citation":{"ama":"Bermano A, Beeler T, Kozlov Y, Bradley D, Bickel B, Gross M. Detailed spatio-temporal reconstruction of eyelids. In: Vol 34. ACM; 2015. doi:<a href=\"https://doi.org/10.1145/2766924\">10.1145/2766924</a>","mla":"Bermano, Amit, et al. <i>Detailed Spatio-Temporal Reconstruction of Eyelids</i>. Vol. 34, no. 4, 44, ACM, 2015, doi:<a href=\"https://doi.org/10.1145/2766924\">10.1145/2766924</a>.","ista":"Bermano A, Beeler T, Kozlov Y, Bradley D, Bickel B, Gross M. 2015. Detailed spatio-temporal reconstruction of eyelids. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques vol. 34, 44.","apa":"Bermano, A., Beeler, T., Kozlov, Y., Bradley, D., Bickel, B., &#38; Gross, M. (2015). Detailed spatio-temporal reconstruction of eyelids (Vol. 34). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States: ACM. <a href=\"https://doi.org/10.1145/2766924\">https://doi.org/10.1145/2766924</a>","ieee":"A. Bermano, T. Beeler, Y. Kozlov, D. Bradley, B. Bickel, and M. Gross, “Detailed spatio-temporal reconstruction of eyelids,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States, 2015, vol. 34, no. 4.","chicago":"Bermano, Amit, Thabo Beeler, Yeara Kozlov, Derek Bradley, Bernd Bickel, and Markus Gross. “Detailed Spatio-Temporal Reconstruction of Eyelids,” Vol. 34. ACM, 2015. <a href=\"https://doi.org/10.1145/2766924\">https://doi.org/10.1145/2766924</a>.","short":"A. Bermano, T. Beeler, Y. Kozlov, D. Bradley, B. Bickel, M. Gross, in:, ACM, 2015."},"publication_status":"published","date_published":"2015-07-27T00:00:00Z","doi":"10.1145/2766924","quality_controlled":"1","publisher":"ACM","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","year":"2015","department":[{"_id":"BeBi"}],"_id":"1625","scopus_import":1,"author":[{"first_name":"Amit","last_name":"Bermano","full_name":"Bermano, Amit"},{"first_name":"Thabo","last_name":"Beeler","full_name":"Beeler, Thabo"},{"full_name":"Kozlov, Yeara","first_name":"Yeara","last_name":"Kozlov"},{"full_name":"Bradley, Derek","last_name":"Bradley","first_name":"Derek"},{"full_name":"Bickel, Bernd","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","last_name":"Bickel","first_name":"Bernd"},{"full_name":"Gross, Markus","last_name":"Gross","first_name":"Markus"}],"month":"07","oa_version":"None","type":"conference","date_updated":"2021-01-12T06:52:05Z","day":"27","abstract":[{"lang":"eng","text":"In recent years we have seen numerous improvements on 3D scanning and tracking of human faces, greatly advancing the creation of digital doubles for film and video games. However, despite the high-resolution quality of the reconstruction approaches available, current methods are unable to capture one of the most important regions of the face - the eye region. In this work we present the first method for detailed spatio-temporal reconstruction of eyelids. Tracking and reconstructing eyelids is extremely challenging, as this region exhibits very complex and unique skin deformation where skin is folded under while opening the eye. Furthermore, eyelids are often only partially visible and obstructed due to selfocclusion and eyelashes. Our approach is to combine a geometric deformation model with image data, leveraging multi-view stereo, optical flow, contour tracking and wrinkle detection from local skin appearance. Our deformation model serves as a prior that enables reconstruction of eyelids even under strong self-occlusions caused by rolling and folding skin as the eye opens and closes. The output is a person-specific, time-varying eyelid reconstruction with anatomically plausible deformations. Our high-resolution detailed eyelids couple naturally with current facial performance capture approaches. As a result, our method can largely increase the fidelity of facial capture and the creation of digital doubles."}],"article_number":"44","title":"Detailed spatio-temporal reconstruction of eyelids","volume":34,"date_created":"2018-12-11T11:53:06Z","publist_id":"5535"},{"publist_id":"5532","date_created":"2018-12-11T11:53:06Z","article_number":"113","title":"OmniAD: Data-driven omni-directional aerodynamics","volume":34,"type":"conference","oa_version":"None","month":"07","date_updated":"2021-01-12T06:52:05Z","abstract":[{"lang":"eng","text":"This paper introduces &quot;OmniAD,&quot; a novel data-driven pipeline to model and acquire the aerodynamics of three-dimensional rigid objects. Traditionally, aerodynamics are examined through elaborate wind tunnel experiments or expensive fluid dynamics computations, and are only measured for a small number of discrete wind directions. OmniAD allows the evaluation of aerodynamic forces, such as drag and lift, for any incoming wind direction using a novel representation based on spherical harmonics. Our datadriven technique acquires the aerodynamic properties of an object simply by capturing its falling motion using a single camera. Once model parameters are estimated, OmniAD enables realistic realtime simulation of rigid bodies, such as the tumbling and gliding of leaves, without simulating the surrounding air. In addition, we propose an intuitive user interface based on OmniAD to interactively design three-dimensional kites that actually fly. Various nontraditional kites were designed to demonstrate the physical validity of our model."}],"day":"27","author":[{"full_name":"Martin, Tobias","first_name":"Tobias","last_name":"Martin"},{"first_name":"Nobuyuki","last_name":"Umetani","full_name":"Umetani, Nobuyuki"},{"first_name":"Bernd","last_name":"Bickel","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd"}],"scopus_import":1,"_id":"1626","department":[{"_id":"BeBi"}],"year":"2015","publisher":"ACM","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","quality_controlled":"1","date_published":"2015-07-27T00:00:00Z","doi":"10.1145/2766919","publication_status":"published","issue":"4","citation":{"apa":"Martin, T., Umetani, N., &#38; Bickel, B. (2015). OmniAD: Data-driven omni-directional aerodynamics (Vol. 34). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States: ACM. <a href=\"https://doi.org/10.1145/2766919\">https://doi.org/10.1145/2766919</a>","ista":"Martin T, Umetani N, Bickel B. 2015. OmniAD: Data-driven omni-directional aerodynamics. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, ACM Transactions on Graphics, vol. 34, 113.","mla":"Martin, Tobias, et al. <i>OmniAD: Data-Driven Omni-Directional Aerodynamics</i>. Vol. 34, no. 4, 113, ACM, 2015, doi:<a href=\"https://doi.org/10.1145/2766919\">10.1145/2766919</a>.","ama":"Martin T, Umetani N, Bickel B. OmniAD: Data-driven omni-directional aerodynamics. In: Vol 34. ACM; 2015. doi:<a href=\"https://doi.org/10.1145/2766919\">10.1145/2766919</a>","short":"T. Martin, N. Umetani, B. Bickel, in:, ACM, 2015.","chicago":"Martin, Tobias, Nobuyuki Umetani, and Bernd Bickel. “OmniAD: Data-Driven Omni-Directional Aerodynamics,” Vol. 34. ACM, 2015. <a href=\"https://doi.org/10.1145/2766919\">https://doi.org/10.1145/2766919</a>.","ieee":"T. Martin, N. Umetani, and B. Bickel, “OmniAD: Data-driven omni-directional aerodynamics,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States, 2015, vol. 34, no. 4."},"language":[{"iso":"eng"}],"conference":{"start_date":"2015-08-09","location":"Los Angeles, CA, United States","name":"SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques","end_date":"2015-08-13"},"intvolume":"        34","status":"public","alternative_title":["ACM Transactions on Graphics"]},{"acknowledgement":"This work was supported in part by grants from the Spanish Ministry of Economy (TIN2012-35840), and the European Research Council (ERC Starting Grant no. 280135 Animetrics).","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"ACM","department":[{"_id":"BeBi"}],"year":"2015","_id":"1627","scopus_import":1,"author":[{"full_name":"Pérez, Jesús","first_name":"Jesús","last_name":"Pérez"},{"full_name":"Thomaszewski, Bernhard","last_name":"Thomaszewski","first_name":"Bernhard"},{"first_name":"Stelian","last_name":"Coros","full_name":"Coros, Stelian"},{"last_name":"Bickel","first_name":"Bernd","full_name":"Bickel, Bernd","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385"},{"last_name":"Canabal","first_name":"José","full_name":"Canabal, José"},{"first_name":"Robert","last_name":"Sumner","full_name":"Sumner, Robert"},{"first_name":"Miguel","last_name":"Otaduy","full_name":"Otaduy, Miguel"}],"type":"conference","month":"07","oa_version":"None","date_updated":"2021-01-12T06:52:06Z","abstract":[{"lang":"eng","text":"We present a computational tool for fabrication-oriented design of flexible rod meshes. Given a deformable surface and a set of deformed poses as input, our method automatically computes a printable rod mesh that, once manufactured, closely matches the input poses under the same boundary conditions. The core of our method is formed by an optimization scheme that adjusts the cross-sectional profiles of the rods and their rest centerline in order to best approximate the target deformations. This approach allows us to locally control the bending and stretching resistance of the surface with a single material, yielding high design flexibility and low fabrication cost."}],"day":"27","article_number":"138","volume":34,"title":"Design and fabrication of flexible rod meshes","date_created":"2018-12-11T11:53:07Z","publist_id":"5530","status":"public","conference":{"end_date":"2015-08-13","location":"Los Angeles, CA, United States","name":"SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques","start_date":"2015-08-09"},"intvolume":"        34","issue":"4","citation":{"short":"J. Pérez, B. Thomaszewski, S. Coros, B. Bickel, J. Canabal, R. Sumner, M. Otaduy, in:, ACM, 2015.","ieee":"J. Pérez <i>et al.</i>, “Design and fabrication of flexible rod meshes,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States, 2015, vol. 34, no. 4.","chicago":"Pérez, Jesús, Bernhard Thomaszewski, Stelian Coros, Bernd Bickel, José Canabal, Robert Sumner, and Miguel Otaduy. “Design and Fabrication of Flexible Rod Meshes,” Vol. 34. ACM, 2015. <a href=\"https://doi.org/10.1145/2766998\">https://doi.org/10.1145/2766998</a>.","ista":"Pérez J, Thomaszewski B, Coros S, Bickel B, Canabal J, Sumner R, Otaduy M. 2015. Design and fabrication of flexible rod meshes. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques vol. 34, 138.","mla":"Pérez, Jesús, et al. <i>Design and Fabrication of Flexible Rod Meshes</i>. Vol. 34, no. 4, 138, ACM, 2015, doi:<a href=\"https://doi.org/10.1145/2766998\">10.1145/2766998</a>.","apa":"Pérez, J., Thomaszewski, B., Coros, S., Bickel, B., Canabal, J., Sumner, R., &#38; Otaduy, M. (2015). Design and fabrication of flexible rod meshes (Vol. 34). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States: ACM. <a href=\"https://doi.org/10.1145/2766998\">https://doi.org/10.1145/2766998</a>","ama":"Pérez J, Thomaszewski B, Coros S, et al. Design and fabrication of flexible rod meshes. In: Vol 34. ACM; 2015. doi:<a href=\"https://doi.org/10.1145/2766998\">10.1145/2766998</a>"},"language":[{"iso":"eng"}],"publication_status":"published","doi":"10.1145/2766998","date_published":"2015-07-27T00:00:00Z","quality_controlled":"1"},{"author":[{"full_name":"Schumacher, Christian","first_name":"Christian","last_name":"Schumacher"},{"id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd","first_name":"Bernd","last_name":"Bickel"},{"last_name":"Rys","first_name":"Jan","full_name":"Rys, Jan"},{"first_name":"Steve","last_name":"Marschner","full_name":"Marschner, Steve"},{"full_name":"Daraio, Chiara","first_name":"Chiara","last_name":"Daraio"},{"full_name":"Gross, Markus","last_name":"Gross","first_name":"Markus"}],"day":"01","article_number":"136","title":"Microstructures to control elasticity in 3D printing","publist_id":"5529","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"ACM","department":[{"_id":"BeBi"}],"scopus_import":1,"article_processing_charge":"No","doi":"10.1145/2766926","quality_controlled":"1","conference":{"end_date":"2015-08-13","start_date":"2015-08-09","location":"Los Angeles, CA, USA","name":"SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques"},"issue":"4","language":[{"iso":"eng"}],"month":"08","type":"conference","oa_version":"Published Version","date_updated":"2021-01-12T06:52:06Z","abstract":[{"lang":"eng","text":"We propose a method for fabricating deformable objects with spatially varying elasticity using 3D printing. Using a single, relatively stiff printer material, our method designs an assembly of smallscale microstructures that have the effect of a softer material at the object scale, with properties depending on the microstructure used in each part of the object. We build on work in the area of metamaterials, using numerical optimization to design tiled microstructures with desired properties, but with the key difference that our method designs families of related structures that can be interpolated to smoothly vary the material properties over a wide range. To create an object with spatially varying elastic properties, we tile the object's interior with microstructures drawn from these families, generating a different microstructure for each cell using an efficient algorithm to select compatible structures for neighboring cells. We show results computed for both 2D and 3D objects, validating several 2D and 3D printed structures using standard material tests as well as demonstrating various example applications."}],"volume":34,"date_created":"2018-12-11T11:53:07Z","year":"2015","_id":"1628","oa":1,"publication_status":"published","date_published":"2015-08-01T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.1145/2766926","open_access":"1"}],"status":"public","intvolume":"        34","citation":{"ieee":"C. Schumacher, B. Bickel, J. Rys, S. Marschner, C. Daraio, and M. Gross, “Microstructures to control elasticity in 3D printing,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, USA, 2015, vol. 34, no. 4.","chicago":"Schumacher, Christian, Bernd Bickel, Jan Rys, Steve Marschner, Chiara Daraio, and Markus Gross. “Microstructures to Control Elasticity in 3D Printing,” Vol. 34. ACM, 2015. <a href=\"https://doi.org/10.1145/2766926\">https://doi.org/10.1145/2766926</a>.","short":"C. Schumacher, B. Bickel, J. Rys, S. Marschner, C. Daraio, M. Gross, in:, ACM, 2015.","ama":"Schumacher C, Bickel B, Rys J, Marschner S, Daraio C, Gross M. Microstructures to control elasticity in 3D printing. In: Vol 34. ACM; 2015. doi:<a href=\"https://doi.org/10.1145/2766926\">10.1145/2766926</a>","mla":"Schumacher, Christian, et al. <i>Microstructures to Control Elasticity in 3D Printing</i>. Vol. 34, no. 4, 136, ACM, 2015, doi:<a href=\"https://doi.org/10.1145/2766926\">10.1145/2766926</a>.","ista":"Schumacher C, Bickel B, Rys J, Marschner S, Daraio C, Gross M. 2015. Microstructures to control elasticity in 3D printing. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques vol. 34, 136.","apa":"Schumacher, C., Bickel, B., Rys, J., Marschner, S., Daraio, C., &#38; Gross, M. (2015). Microstructures to control elasticity in 3D printing (Vol. 34). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, USA: ACM. <a href=\"https://doi.org/10.1145/2766926\">https://doi.org/10.1145/2766926</a>"}},{"publisher":"Wiley-Blackwell","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","year":"2015","department":[{"_id":"BeBi"}],"_id":"1734","publication":"Computer Graphics Forum","scopus_import":1,"page":"709 - 733","author":[{"full_name":"Klehm, Oliver","first_name":"Oliver","last_name":"Klehm"},{"full_name":"Rousselle, Fabrice","first_name":"Fabrice","last_name":"Rousselle"},{"last_name":"Papas","first_name":"Marios","full_name":"Papas, Marios"},{"last_name":"Bradley","first_name":"Derek","full_name":"Bradley, Derek"},{"full_name":"Hery, Christophe","first_name":"Christophe","last_name":"Hery"},{"orcid":"0000-0001-6511-9385","id":"49876194-F248-11E8-B48F-1D18A9856A87","full_name":"Bickel, Bernd","first_name":"Bernd","last_name":"Bickel"},{"full_name":"Jarosz, Wojciech","first_name":"Wojciech","last_name":"Jarosz"},{"last_name":"Beeler","first_name":"Thabo","full_name":"Beeler, Thabo"}],"oa_version":"None","month":"05","type":"journal_article","date_updated":"2021-01-12T06:52:52Z","abstract":[{"text":"Facial appearance capture is now firmly established within academic research and used extensively across various application domains, perhaps most prominently in the entertainment industry through the design of virtual characters in video games and films. While significant progress has occurred over the last two decades, no single survey currently exists that discusses the similarities, differences, and practical considerations of the available appearance capture techniques as applied to human faces. A central difficulty of facial appearance capture is the way light interacts with skin-which has a complex multi-layered structure-and the interactions that occur below the skin surface can, by definition, only be observed indirectly. In this report, we distinguish between two broad strategies for dealing with this complexity. &quot;Image-based methods&quot; try to exhaustively capture the exact face appearance under different lighting and viewing conditions, and then render the face through weighted image combinations. &quot;Parametric methods&quot; instead fit the captured reflectance data to some parametric appearance model used during rendering, allowing for a more lightweight and flexible representation but at the cost of potentially increased rendering complexity or inexact reproduction. The goal of this report is to provide an overview that can guide practitioners and researchers in assessing the tradeoffs between current approaches and identifying directions for future advances in facial appearance capture.","lang":"eng"}],"day":"01","title":"Recent advances in facial appearance capture","volume":34,"date_created":"2018-12-11T11:53:43Z","publist_id":"5391","status":"public","intvolume":"        34","issue":"2","citation":{"ieee":"O. Klehm <i>et al.</i>, “Recent advances in facial appearance capture,” <i>Computer Graphics Forum</i>, vol. 34, no. 2. Wiley-Blackwell, pp. 709–733, 2015.","chicago":"Klehm, Oliver, Fabrice Rousselle, Marios Papas, Derek Bradley, Christophe Hery, Bernd Bickel, Wojciech Jarosz, and Thabo Beeler. “Recent Advances in Facial Appearance Capture.” <i>Computer Graphics Forum</i>. Wiley-Blackwell, 2015. <a href=\"https://doi.org/10.1111/cgf.12594\">https://doi.org/10.1111/cgf.12594</a>.","short":"O. Klehm, F. Rousselle, M. Papas, D. Bradley, C. Hery, B. Bickel, W. Jarosz, T. Beeler, Computer Graphics Forum 34 (2015) 709–733.","ama":"Klehm O, Rousselle F, Papas M, et al. Recent advances in facial appearance capture. <i>Computer Graphics Forum</i>. 2015;34(2):709-733. doi:<a href=\"https://doi.org/10.1111/cgf.12594\">10.1111/cgf.12594</a>","ista":"Klehm O, Rousselle F, Papas M, Bradley D, Hery C, Bickel B, Jarosz W, Beeler T. 2015. Recent advances in facial appearance capture. Computer Graphics Forum. 34(2), 709–733.","mla":"Klehm, Oliver, et al. “Recent Advances in Facial Appearance Capture.” <i>Computer Graphics Forum</i>, vol. 34, no. 2, Wiley-Blackwell, 2015, pp. 709–33, doi:<a href=\"https://doi.org/10.1111/cgf.12594\">10.1111/cgf.12594</a>.","apa":"Klehm, O., Rousselle, F., Papas, M., Bradley, D., Hery, C., Bickel, B., … Beeler, T. (2015). Recent advances in facial appearance capture. <i>Computer Graphics Forum</i>. Wiley-Blackwell. <a href=\"https://doi.org/10.1111/cgf.12594\">https://doi.org/10.1111/cgf.12594</a>"},"language":[{"iso":"eng"}],"publication_status":"published","doi":"10.1111/cgf.12594","date_published":"2015-05-01T00:00:00Z","quality_controlled":"1","main_file_link":[{"url":"https://graphics.ethz.ch/~mpapas/publications/fac_star.pdf"}]},{"publication_identifier":{"isbn":["978-1-4503-3496-9"]},"publication_status":"published","quality_controlled":"1","date_published":"2015-08-01T00:00:00Z","doi":"10.1145/2786784.2786803","status":"public","citation":{"ista":"Bharaj G, Coros S, Thomaszewski B, Tompkin J, Bickel B, Pfister H. 2015. Computational design of walking automata. SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, 93–100.","mla":"Bharaj, Gaurav, et al. <i>Computational Design of Walking Automata</i>. ACM, 2015, pp. 93–100, doi:<a href=\"https://doi.org/10.1145/2786784.2786803\">10.1145/2786784.2786803</a>.","apa":"Bharaj, G., Coros, S., Thomaszewski, B., Tompkin, J., Bickel, B., &#38; Pfister, H. (2015). Computational design of walking automata (pp. 93–100). Presented at the SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, Los Angeles, CA, United States: ACM. <a href=\"https://doi.org/10.1145/2786784.2786803\">https://doi.org/10.1145/2786784.2786803</a>","ama":"Bharaj G, Coros S, Thomaszewski B, Tompkin J, Bickel B, Pfister H. Computational design of walking automata. In: ACM; 2015:93-100. doi:<a href=\"https://doi.org/10.1145/2786784.2786803\">10.1145/2786784.2786803</a>","short":"G. Bharaj, S. Coros, B. Thomaszewski, J. Tompkin, B. Bickel, H. Pfister, in:, ACM, 2015, pp. 93–100.","ieee":"G. Bharaj, S. Coros, B. Thomaszewski, J. Tompkin, B. Bickel, and H. Pfister, “Computational design of walking automata,” presented at the SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation, Los Angeles, CA, United States, 2015, pp. 93–100.","chicago":"Bharaj, Gaurav, Stelian Coros, Bernhard Thomaszewski, James Tompkin, Bernd Bickel, and Hanspeter Pfister. “Computational Design of Walking Automata,” 93–100. ACM, 2015. <a href=\"https://doi.org/10.1145/2786784.2786803\">https://doi.org/10.1145/2786784.2786803</a>."},"language":[{"iso":"eng"}],"conference":{"location":"Los Angeles, CA, United States","name":"SCA: ACM SIGGRAPH/Eurographics Symposium on Computer animation","start_date":"2015-08-07","end_date":"2015-08-09"},"type":"conference","oa_version":"None","month":"08","abstract":[{"text":"Creating mechanical automata that can walk in stable and pleasing manners is a challenging task that requires both skill and expertise. We propose to use computational design to offset the technical difficulties of this process. A simple drag-and-drop interface allows casual users to create personalized walking toys from a library of pre-defined template mechanisms. Provided with this input, our method leverages physical simulation and evolutionary optimization to refine the mechanical designs such that the resulting toys are able to walk. The optimization process is guided by an intuitive set of objectives that measure the quality of the walking motions. We demonstrate our approach on a set of simulated mechanical toys with different numbers of legs and various distinct gaits. Two fabricated prototypes showcase the feasibility of our designs.","lang":"eng"}],"day":"01","date_updated":"2021-01-12T06:51:21Z","page":"93 - 100","author":[{"last_name":"Bharaj","first_name":"Gaurav","full_name":"Bharaj, Gaurav"},{"last_name":"Coros","first_name":"Stelian","full_name":"Coros, Stelian"},{"full_name":"Thomaszewski, Bernhard","last_name":"Thomaszewski","first_name":"Bernhard"},{"first_name":"James","last_name":"Tompkin","full_name":"Tompkin, James"},{"last_name":"Bickel","first_name":"Bernd","full_name":"Bickel, Bernd","orcid":"0000-0001-6511-9385","id":"49876194-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Pfister","first_name":"Hanspeter","full_name":"Pfister, Hanspeter"}],"publist_id":"5655","date_created":"2018-12-11T11:52:30Z","title":"Computational design of walking automata","year":"2015","department":[{"_id":"BeBi"}],"publisher":"ACM","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":1,"_id":"1520"}]