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High-Quality Face Capture Using Anatomical Muscles

Michael Bao, Matthew Cong, Stephane Grabli, Ronald Fedkiw
2019 2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)  
Our formulation is intuitive, natural, as well as monolithically and fully coupled such that one can differentiate the model from end to end, which makes it viable for both optimization and learning-based  ...  We illustrate this with a number of examples including both shape matching of three-dimensional geometry as as well as the automatic determination of a threedimensional facial pose from a single two-dimensional  ...  We would also like to thank Paul Huston for his acting and Jane Wu for her help in preparing the supplementary video.  ... 
doi:10.1109/cvpr.2019.01106 dblp:conf/cvpr/BaoCGF19 fatcat:5czwrh45nbethiqibmuxc7wvvu

High-Quality Face Capture Using Anatomical Muscles [article]

Michael Bao, Matthew Cong, Stéphane Grabli, Ronald Fedkiw
2018 arXiv   pre-print
Our formulation is intuitive, natural, as well as monolithically and fully coupled such that one can differentiate the model from end to end, which makes it viable for both optimization and learning-based  ...  We illustrate this with a number of examples including both shape matching of three-dimensional geometry as as well as the automatic determination of a three-dimensional facial pose from a single two-dimensional  ...  We can thus use an optimization problem in the form of Equation 12 to solve for the model parameters where F * are the vertex positions of the target geometry, and F (x) = x is the identity function.  ... 
arXiv:1812.02836v1 fatcat:ejkqgcnu3fhqvlkgm4i3kpflje

Novel correspondence-based approach for consistent human skeleton extraction

Kang Wang, Abdul Razzaq, Zhongke Wu, Feng Tian, Sajid Ali, Taorui Jia, Xingce Wang, Mingquan Zhou
2015 Multimedia tools and applications  
This paper presents a novel base-points-driven shape correspondence (BSC) approach to extract skeletons of articulated objects from 3D mesh shapes.  ...  The results of the proposed approach can be applied to various applications such as skeleton-driven animation, shape segmentation and human motion analysis.  ...  Acknowledgments The research is partially supported by National Natural Science Foundation of China (No.61170170 and 61170203) and the National Key Technology Research and Development Program of China  ... 
doi:10.1007/s11042-015-2629-y fatcat:acfl6rfdk5b6bps5lvha4iar5u

Fiber Tract-Oriented Statistics for Quantitative Diffusion Tensor MRI Analysis [chapter]

Isabelle Corouge, P. Thomas Fletcher, Sarang Joshi, John H. Gilmore, Guido Gerig
2005 Lecture Notes in Computer Science  
We propose a new framework for quantitative tract-oriented DTI analysis that systematically includes tensor interpolation and averaging, using nonlinear Riemannian symmetric space.  ...  Quantitative diffusion tensor imaging (DTI) has become the major imaging modality to study properties of white matter and the geometry of fiber tracts of the human brain.  ...  Weili Lin, UNC Radiology, and James Mc Fall, Duke University, are acknowledged for providing us with the DT MRI data.  ... 
doi:10.1007/11566465_17 fatcat:j5jiblxufnft5drqfzphopgaki

Fiber tract-oriented statistics for quantitative diffusion tensor MRI analysis

I COROUGE, P FLETCHER, S JOSHI, S GOUTTARD, G GERIG
2006 Medical Image Analysis  
We propose a new framework for quantitative tract-oriented DTI analysis that systematically includes tensor interpolation and averaging, using nonlinear Riemannian symmetric space.  ...  Quantitative diffusion tensor imaging (DTI) has become the major imaging modality to study properties of white matter and the geometry of fiber tracts of the human brain.  ...  Weili Lin, UNC Radiology, and James Mc Fall, Duke University, are acknowledged for providing us with the DT MRI data.  ... 
doi:10.1016/j.media.2006.07.003 pmid:16926104 fatcat:ifr6duqwhfd2do4774vadunc7e

Autonomous Engines Driven by Active Matter: Energetics and Design Principles

Patrick Pietzonka, Étienne Fodor, Christoph Lohrmann, Michael E. Cates, Udo Seifert
2019 Physical Review X  
For systems with continuous degrees of freedom, work cannot be extracted using a one-dimensional geometry under quite general conditions.  ...  In contrast, we put forward two-dimensional shapes of a movable passive obstacle that are best suited for the extraction of work, which we compare with analytical results for an idealized work-extraction  ...  For each combination of parameters shown in Fig. 3 , we optimize the extracted power with respect to the external force f ex and the passive diffusivity w 0 , leading to optimal parameters f à ex and  ... 
doi:10.1103/physrevx.9.041032 fatcat:es2rirzg7rflnh65lfsh2wdrlq

Application of Fluorescence Correlation Spectroscopy for Velocity Imaging in Microfluidic Devices

Kalyan K. Kuricheti, Volker Buschmann, Kenneth D. Weston
2004 Applied Spectroscopy  
The high-resolution velocity maps can be used to characterize and optimize microdevice performance and to validate simulation efforts.  ...  In this paper we present and demonstrate a technique for mapping fluid flow rates in microfluidic systems with sub-micrometer resolution using confocal microscopy in conjunction with fluorescence correlation  ...  The decay of the autocorrelation curves (c and d) quantifies the transit times and can be used to extract the velocity.  ... 
doi:10.1366/0003702042335957 pmid:15527518 fatcat:w4tqxipz2rbgbgzk5h562gmfwa

Iterative cage-based registration from multi-view silhouettes

Yann Savoye
2013 Proceedings of the 10th European Conference on Visual Media Production - CVMP '13  
In this paper, we propose a cage-based technique to register non-rigid observed shapes using a meaningful animator-friendly non-rigid reduced embedding.  ...  Consistent dynamic shape capture from casual videos is a fundamental task at the cross-fertilization of Computer Vision and Computer Graphics.  ...  We reconstruct a geometry entity using voxel-based shape-fromsilhouette and watertight surface extraction process.  ... 
doi:10.1145/2534008.2534010 dblp:conf/cvmp/Savoye13 fatcat:l3xg24wrafe7fg5bqogr65m25u

Reasoning About Shape in Complex Datasets: Geometry, Structure and Semantics [article]

Silvia Biasotti, Hamid Laga, Michela Mortara, Michela Spagnuolo
2014 Eurographics State of the Art Reports  
We will first introduce some of the main challenges in shape analysis, underlining the role of Mathematics in the identification of the geometry, structure and semantics of a shape.  ...  We will overview the fundamental tools for the analysis of the variability in 3D shape collections.  ...  Acknowledgements • Shape Modeling Group @ IMATI and Daniela Giorgi  ... 
doi:10.2312/egt.20141018 fatcat:gaf3abx5ejfvlgsbswxb2ii5hi

Analysis, reconstruction and manipulation using arterial snakes

Guo Li, Ligang Liu, Hanlin Zheng, Niloy J. Mitra
2010 ACM SIGGRAPH Asia 2010 papers on - SIGGRAPH ASIA '10  
The extracted high-level shape representation enables easy, intuitive, yet powerful geometry editing.  ...  extracts a curve network with associated cross-sectional profiles providing a reconstructed model.  ...  Several people helped in generating comparison results for Figure 11 namely Junjie Cao and Oscar Au for Laplacian contraction, Misha Kazhdan for Poisson surface reconstruction, Balint  ... 
doi:10.1145/1882262.1866178 fatcat:7jqxhum7svbo7hihsz33uvr4jy

Analysis, reconstruction and manipulation using arterial snakes

Guo Li, Ligang Liu, Hanlin Zheng, Niloy J. Mitra
2010 ACM Transactions on Graphics  
The extracted high-level shape representation enables easy, intuitive, yet powerful geometry editing.  ...  extracts a curve network with associated cross-sectional profiles providing a reconstructed model.  ...  Several people helped in generating comparison results for Figure 11 namely Junjie Cao and Oscar Au for Laplacian contraction, Misha Kazhdan for Poisson surface reconstruction, Balint  ... 
doi:10.1145/1882261.1866178 fatcat:oxdvmsur5jdkphmluen5ly3l6a

Analysis, reconstruction and manipulation using arterial snakes

Guo Li, Ligang Liu, Hanlin Zheng, Niloy J. Mitra
2010 ACM SIGGRAPH Asia 2010 papers on - SIGGRAPH ASIA '10  
The extracted high-level shape representation enables easy, intuitive, yet powerful geometry editing.  ...  extracts a curve network with associated cross-sectional profiles providing a reconstructed model.  ...  Several people helped in generating comparison results for Figure 11 namely Junjie Cao and Oscar Au for Laplacian contraction, Misha Kazhdan for Poisson surface reconstruction, Balint  ... 
doi:10.1145/1866158.1866178 fatcat:7pxkjgypvbayxajcf2dxvleirq

Illumination Aesthetics

Cesar Torres, Jasper O'Leary, Molly Nicholas, Eric Paulos
2017 Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems - CHI '17  
ACKNOWLEDGMENTS We thank Ryan Kapur, Niraj Rao, Jacqueline Garcia for their aid with early design, implementation, and fabrication, and the anonymous reviewers for their valuable feedback.  ...  This research was supported by funding from Adobe and Nokia. Explorative Engineering CHI 2017, May 6-11, 2017, Denver, CO, USA 6120  ...  Generating Shape-Optimized Secondary Optics We decompose the procedure for generating shape-optimized SOEs into four stages: 1) profile extraction, 2) scene construction and ray tracing, 3) simulated annealing  ... 
doi:10.1145/3025453.3025466 dblp:conf/chi/TorresONP17 fatcat:h3bobckv7rgf7b4s5jxo2aeul4

Deep Learning in Sheet Metal Bending With a Novel Theory-Guided Deep Neural Network

Shiming Liu, Yifan Xia, Zhusheng Shi, Hui Yu, Zhiqiang Li, Jianguo Lin
2021 IEEE/CAA Journal of Automatica Sinica  
The stress-strain curve describing the material properties and the prior knowledge used to guide learning are stored in the database and the knowledge base, respectively.  ...  One can obtain the predicted loading stroke for a new workpiece shape by importing the target geometry through the user interface.  ...  [7] developed the smooth displacement adjustment (SDA) method and the surface controlled overbending (SCO) method to optimize the tool shape for a deep drawing process to increase the geometry accuracy  ... 
doi:10.1109/jas.2021.1003871 fatcat:44tlakpudjfgrmbh2ghzpvax5u

Local Geometry Inclusive Global Shape Representation

Somenath Das, Suchendra M. Bhandarkar
2017 2017 IEEE International Conference on Computer Vision Workshops (ICCVW)  
The proposed shape descriptor spectrum and the optimization criterion based on spectral commutativity are observed to yield competitive performance compared to relevant state-of-the-art methods.  ...  Eigenspectrum-based characterization metrics are proposed to quantify the performance of the proposed 3D shape descriptor for correspondence determination and self-symmetry detection in comparison to its  ...  [27] use diffusion geometry to measure the point-to-point length along a specific path on the surface mesh using a random walk model.  ... 
doi:10.1109/iccvw.2017.151 dblp:conf/iccvw/DasB17 fatcat:wmk5n6jpnndp7en5q7o23ve3rq
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