Research
My research is focused on machine learning problems with geometric flavor. The symbiosis between data-driven and model-driven methods opens up new and exciting possibilities to overcome limitations in the new era of machine learning. The data we consume have a unique structure which we can further exploit in learning paradigm used, for example, in computer vision, medical imaging and robotics.

Latest Publications
Jou
1. Full and partial symmetries of non-rigid shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein and R. Kimmel.
International Journal of Computer Vision (IJCV), 89 (1), 2009.
​
2. Affine-invariant geodesic geometry of deformable 3D shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and N. Sochen.
Computers & Graphics Journal, 35 (3), 2011.
Also published in Proc. Shape Modeling International, 2011.
​
3. Design of aerosol face masks for children using computerized 3D face analysis
Amirav, A. Luder, A. Halamish, Dan Raviv, R. Kimmel and M. Newhouse
Journal of Aerosol Medicine and Pulmonary drug Delivery, 27 (4), 2013.
4. Scale invariant geometry of non-rigid shape
Y. Aflalo, R. Kimmel and Dan Raviv
SIAM Journal on Imaging Sciences (SIIMS), 6 (3), 2013.
5. Graph Isomorphisms and Automorphisms via Spectral Signatures
Dan Raviv, R. Kimmel and Alfred. M. Bruckstein
Transactions on Pattern analysis and Machine Intelligence (TPAMI), 35 (8), 2013.
6. Geometric and photometric data fusion in non-rigid shape analysis
Kovnastsky, Dan Raviv, M. M. Bronstein, A. M. Bronstein, R. Kimmel
Numerical Mathematics: Theory, Methods and Applications, 6 (1), 2013.
7. Hierarchical matching of non-rigid shapes
Dan Raviv, A. Dubrovina , R. Kimmel
Numerical Mathematics: Theory, Methods and Applications, 6 (1), 2013.
​
8. Active printed materials for complex self-evolving deformations
Dan Raviv, W. Zhao, C. McKnelly, A. Papadopoulou, A. Kadambi, B. Shi, S. Hirsch,
D. Dikovski, M. Zyracki, C. Olguin, S. Tibbits and R.Raskar
Nature/Scientific Reports, 4, 2014.
​
9. Pose estimation using time-resolved inversion of diffuse light
Dan Raviv, C. Barsi, N. Naik, M. Feigin and R. Raskar
Optics Express, 22 (17), 2014.
Selected by the editors for the Virtual Journal on Biomedical Optics (VJBO), 2014.
​
10. Affine invariant geometry for non-rigid shapes
Dan Raviv and R. Kimmel
International journal of computer vision (IJCV), 111 (1), 2014.
​
11. Equi-affine invariant geometry for shape analysis
Dan Raviv, A. M. Bronstein, M. M. Bronstein, D. Waismann, N. Sochen and R. Kimmel.
Journal of Mathematical Imaging and Vision (JMIV), 50 (1-2), 2014.
​
12. Locating and classifying fluorescent tags behind turbid layers non-invasively using sparsity-based time-resolved inversion
G. Satat, C. Barsi, B. Heshmat, Dan Raviv and R. Raskar
Nature communications, 6, 2015.
​
13. Scale invariant metrics of volumetric datasets
Dan Raviv, and R. Raskar
SIAM Journal on Imaging Sciences, 8(1) (SIIMS), 2015.
​
14. All photons imaging through volumetric scattering
G. Satat, B. Heshmat, and R. Raskar
Nature/Scientific Reports, 2016
​
15. Locally Rigid Averaging (LRA): Expected geometrical mean from stretchable non-rigid observations
Dan Raviv, E. Bayro-Corrochano and R. Raskar
International Journal of Computer Vision (IJCV), 2017
​
16. Multi-velocity neural networks for facial expression recognition in videos
O. Gupta, Dan Raviv and R. Raskar
IEEE Transactions on Affective Computing, 2017.
​
17. Illumination invariant in Deep video gesture recognition
O. Gupta, and R. Raskar
Pattern Recognition, 2018.
​
18. MRZ code extraction from visa and passport documents using convolutional neural networks
International Journal on Document Analysis and Recognition (IJDAR), 2021
Y. Liu, H. James, O.Gupta and
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Conferences (full papers / peer review):
-
Symmetries of non-rigid shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein and R. Kimmel.
Proc. Workshop on Non-rigid Registration and Tracking (NRTL), 2007.
Part of International Conference of Computer Vision (ICCV).
-
Volumetric heat kernel signatures
Dan Raviv, A. M. Bronstein and M. M. Bronstein and R. Kimmel.
Proc. Workshop on 3D Object Retrieval, 2010.
-
Diffusion symmetries of non-rigid shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and G. Sapiro.
Proc. 3D Data Processing Visualization and Transmission (3DPVT), 2010.
-
Affine-invariant diffusion geometry for the analysis of deformable 3D shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and N. Sochen.
Proc. IEEE Computer Vision and Pattern Recognition (CVPR), 2011.
-
Hierarchical matching of non-rigid shapes
Dan Raviv, A. Dubrovina, R. Kimmel
Proc. Scale Space and Variational methods (SSVM), 2011.
-
Affine-invariant Photometric Heat Kernel Signatures
A. Kovnastsky, Dan Raviv, M. M. Bronstein, A. M. Bronstein, R. Kimmel
Proc. Eurographics workshop on 3D object retrieval (3DOR), 2012.
-
Intrinsic Local Symmetries: A Computational Framework
C. Grushko, Dan Raviv and R. Kimmel
Proc. Eurographics workshop on 3D object retrieval (3DOR), 2012.
-
Evaluating local contractions from large deformations using affine invariant spectral geometry
Dan Raviv, J. Lessick and R. Raskar
Statistical atlases and computational modeling of the heart (part of MICCAI), 2014.
9. Cyclic Functional Mapping: Self-supervised correspondence between non-isometric deformable shapes.
D. Ginzburg and Dan Raviv
European Conference on Computer Vision (ECCV), 2020. Spotlight.
10. It's All Around You: Range-Guided Cylindrical Coordinates for 3D Object Detection
M. Lavie and Dan Raviv
Proc. ICCV / Autonomous Vehicle Vision (AVVVision), 2021
-
Occlusion guided scene flow estimation on 3D point clouds
B. Ouyang and
Proc. CVPR / Workshop on Autonomous Driving (WAD), 2021
12. FlowStep3D - Graph Unrolling for Self-Supervised Scene Flow Estimation
Y. Kittenplon and Dan Raviv
Proc. Conference on Computer Vision and Pattern Recognition (CVPR), 2021
-
DPC: Unsupervised Deep Point Correspondence via Cross and Self Construction
Lang, D. Ginzburg, S. Avidan and Dan Raviv
International Conference on 3D Vision (3DV) 2021
-
Occlusion guided self-supervised scene flow estimation on 3D point clouds
B. Ouyang and
International Conference on 3D Vision (3DV) 2021
-
Dual Geometric Graph Network (DG2N) Iterative network for deformable shape alignment
D. Ginzburg and Dan Raviv
International Conference on 3D Vision (3DV) 2021
Conferences(abstract/poster):
-
Evidence based design of face masks for children through computerized 3D face analysis
M. Newhouse, A. Luder, A. Chalamish, Dan Raviv, R. Kimmel, and I. Amirav
International Congress on Pediatric Pulmonology, 2012
Pediatric Respiratory Reviews, 2012.
-
Locating fluorescence lifetimes behind turbid layers non-invasively using sprase, time-resolved inversion
G. Stat, C. Barsi, B. Heshmat, Dan Raviv and R. Raskar
CLEO: Science and Innovations, 2014.
-
Imaging through thick turbid medium using time-resolved measurement
G. Stat, Dan Raviv, B. Heshmat, and R. Raskar
Computational Optical Sensing and Imaging, Imaging and Applied Optics. CT3F4, 2015.
-
Deep video gesture recognition using illumination invariants
O. Gupta, and R. Raskar
BigVision, the 4th international workshop on large scale visual recognition and retrieval, 2016
-
From non-rigid to null-space
Dan Raviv
IPAM: Geometry and Learning from Data in 3D and beyond: Shape analysis, 2019.
Book chapters
-
Hierarchical matching of non-rigid shapes
Dan Raviv, A. Dubrovina, R. Kimmel
Proc. Scale Space and Variational methods. LNCS 6667, 2012.
-
Equi-affine invariant geometries of articulated objects
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and N. Sochen
Lectures notes in Computer Science. LNCS 7474, 2012. Presented in at Dagstuhl seminar no. 11261.
-
Non-rigid shape correspondence using pointwise surface descriptors and metric structures
A. Dubrovina, Dan Raviv, and R. Kimmel
Innovations for Shape Analysis, Mathematics and Visualization 2013. Presented at Dagstuhl seminar no. 11142, 2011.
-
Evaluating local contractions from large deformations using affine invariant spectral geometry
Dan Raviv, J. Lessick and R. Raskar
Statistical atlases and computational modeling of the heart (part of MICCAI), 2014.
-
Computational Invariants for Curves and Surfaces
O. Halimi, , Y. Aflalo and R. Kimmel
Processing, Analyzing and Learning of Images, Shapes and Forms: Part 2, Volume 20, 2019.
Under review
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Skeleton-based typing style learning for person identification
L. Gelberg, D. Mendlovic and
2. Printing and scanning attach for image counter forensics
H. James, O. Gupta and Dan Raviv
3. OCR graph features for manipulation detection in documents
H. James, O. Gupta and Dan Raviv
6. Unsupervised Optical Flow Using Cost Function Unrolling
G. Lifshitz and Dan Raviv
7. Geometry Enhancements from Visual Content: Going Beyond Ground Truth
L. Azaria and Dan Raviv
8. Unsupervised Scale-Invariant Multi-Spectrum Shape Matching
I.K. Paz, D. Ginzburg and Dan Raviv
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Deep Weighted Consensus – Dense correspondence confidence maps for 3D shape registration
D. Ginzburg and
Latest Publications
Journals
​
1. Full and partial symmetries of non-rigid shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein and R. Kimmel.
International Journal of Computer Vision (IJCV), 89 (1), 2009.
​
2. Affine-invariant geodesic geometry of deformable 3D shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and N. Sochen.
Computers & Graphics Journal, 35 (3), 2011.
Also published in Proc. Shape Modeling International, 2011.
​
3. Design of aerosol face masks for children using computerized 3D face analysis
Amirav, A. Luder, A. Halamish, Dan Raviv, R. Kimmel and M. Newhouse
Journal of Aerosol Medicine and Pulmonary drug Delivery, 27 (4), 2013.
4. Scale invariant geometry of non-rigid shape
Y. Aflalo, R. Kimmel and Dan Raviv
SIAM Journal on Imaging Sciences (SIIMS), 6 (3), 2013.
5. Graph Isomorphisms and Automorphisms via Spectral Signatures
Dan Raviv, R. Kimmel and Alfred. M. Bruckstein
Transactions on Pattern analysis and Machine Intelligence (TPAMI), 35 (8), 2013.
6. Geometric and photometric data fusion in non-rigid shape analysis
Kovnastsky, Dan Raviv, M. M. Bronstein, A. M. Bronstein, R. Kimmel
Numerical Mathematics: Theory, Methods and Applications, 6 (1), 2013.
7. Hierarchical matching of non-rigid shapes
Dan Raviv, A. Dubrovina , R. Kimmel
Numerical Mathematics: Theory, Methods and Applications, 6 (1), 2013.
​
8. Active printed materials for complex self-evolving deformations
Dan Raviv, W. Zhao, C. McKnelly, A. Papadopoulou, A. Kadambi, B. Shi, S. Hirsch,
D. Dikovski, M. Zyracki, C. Olguin, S. Tibbits and R.Raskar
Nature/Scientific Reports, 4, 2014.
​
9. Pose estimation using time-resolved inversion of diffuse light
Dan Raviv, C. Barsi, N. Naik, M. Feigin and R. Raskar
Optics Express, 22 (17), 2014.
Selected by the editors for the Virtual Journal on Biomedical Optics (VJBO), 2014.
​
10. Affine invariant geometry for non-rigid shapes
Dan Raviv and R. Kimmel
International journal of computer vision (IJCV), 111 (1), 2014.
​
11. Equi-affine invariant geometry for shape analysis
Dan Raviv, A. M. Bronstein, M. M. Bronstein, D. Waismann, N. Sochen and R. Kimmel.
Journal of Mathematical Imaging and Vision (JMIV), 50 (1-2), 2014.
​
12. Locating and classifying fluorescent tags behind turbid layers non-invasively using sparsity-based time-resolved inversion
G. Satat, C. Barsi, B. Heshmat, Dan Raviv and R. Raskar
Nature communications, 6, 2015.
​
13. Scale invariant metrics of volumetric datasets
Dan Raviv, and R. Raskar
SIAM Journal on Imaging Sciences, 8(1) (SIIMS), 2015.
​
14. All photons imaging through volumetric scattering
G. Satat, B. Heshmat, and R. Raskar
Nature/Scientific Reports, 2016
​
15. Locally Rigid Averaging (LRA): Expected geometrical mean from stretchable non-rigid observations
Dan Raviv, E. Bayro-Corrochano and R. Raskar
International Journal of Computer Vision (IJCV), 2017
​
16. Multi-velocity neural networks for facial expression recognition in videos
O. Gupta, Dan Raviv and R. Raskar
IEEE Transactions on Affective Computing, 2017.
​
17. Illumination invariant in Deep video gesture recognition
O. Gupta, and R. Raskar
Pattern Recognition, 2018.
​
18. MRZ code extraction from visa and passport documents using convolutional neural networks
International Journal on Document Analysis and Recognition (IJDAR), 2021
Y. Liu, H. James, O.Gupta and
​
​
​
​
​
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​
1. Symmetries of non-rigid shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein and R. Kimmel.
Proc. Workshop on Non-rigid Registration and Tracking (NRTL), 2007.
Part of International Conference of Computer Vision (ICCV).
​
2. Volumetric heat kernel signatures
Dan Raviv, A. M. Bronstein and M. M. Bronstein and R. Kimmel.
Proc. Workshop on 3D Object Retrieval, 2010.
3. Diffusion symmetries of non-rigid shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and G. Sapiro.
Proc. 3D Data Processing Visualization and Transmission (3DPVT), 2010.
4. Affine-invariant diffusion geometry for the analysis of deformable 3D shapes
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and N. Sochen.
Proc. IEEE Computer Vision and Pattern Recognition (CVPR), 2011.
​
5. Hierarchical matching of non-rigid shapes.
Dan Raviv, A. Dubrovina, R. Kimmel
Proc. Scale Space and Variational methods (SSVM), 2011.
​
6. Affine-invariant Photometric Heat Kernel Signatures
A. Kovnastsky, Dan Raviv, M. M. Bronstein, A. M. Bronstein, R. Kimmel
Proc. Eurographics workshop on 3D object retrieval (3DOR), 2012.
​
7. Intrinsic Local Symmetries: A Computational Framework
C. Grushko, Dan Raviv and R. Kimmel
Proc. Eurographics workshop on 3D object retrieval (3DOR), 2012.
​
8. Evaluating local contractions from large deformations using affine invariant spectral geometry
Dan Raviv, J. Lessick and R. Raskar
Statistical atlases and computational modeling of the heart (part of MICCAI), 2014.
​
9. Cyclic Functional Mapping: Self-supervised correspondence between non-isometric deformable shapes.
D. Ginzburg and Dan Raviv
European Conference on Computer Vision (ECCV), 2020. Spotlight.
​
10. FlowStep3D: Model unrolling for self-supervised scene flow estimation
Y. Kittenplon , Y. Eldar and Dan Raviv
Proc. Conference on Computer Vision and Pattern Recognition (CVPR), 2021
​
11. It’s all around you: Range-guided cylindrical network for 3D object detection
M. Lavie and Dan Raviv
Proc. ICCV / Autonomous Vehicle Vision (AVVVision), 2021
12. Occlusion guided scene flow estimation on 3D point clouds
B. Ouyang and Dan Raviv
Proc. CVPR / Workshop on Autonomous Driving (WAD), 2021
​
13. DPC: Unsupervised Deep Point Correspondence via Cross and Self Construction
Lang, D. Ginzburg , S. Avidan and Dan Raviv
International Conference on 3D Vision (3DV) 2021
14. Occlusion guided self-supervised scene flow estimation on 3D point clouds
B. Ouyang and Dan Raviv
International Conference on 3D Vision (3DV) 2021
15. Dual Geometric Graph Network (DG2N) Iterative network for deformable shape alignment
D. Ginzburg and Dan Raviv
International Conference on 3D Vision (3DV) 2021
16. Skeleton-based type style learning for person identification
L. Gelberg , D. Mendelovich and Dan Raviv
xAI4Biometrics Workshop , WACV 2022
17. Deep confidence guided distance for 3D partial shape registration
D. Ginzburg and Dan Raviv
Association of the Advancement of Artificial Intelligence (AAAI) 2022
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1. Evidence based design of face masks for children through computerized 3D face analysis
M. Newhouse, A. Luder, A. Chalamish, Dan Raviv, R. Kimmel, and I. Amirav
International Congress on Pediatric Pulmonology, 2012
Pediatric Respiratory Reviews, 2012.
​
2. Locating fluorescence lifetimes behind turbid layers non-invasively using sprase, time-resolved inversion
G. Stat, C. Barsi, B. Heshmat, Dan Raviv and R. Raskar
CLEO: Science and Innovations, 2014.
​
3. Imaging through thick turbid medium using time-resolved measurement
G. Stat, Dan Raviv, B. Heshmat, and R. Raskar
Computational Optical Sensing and Imaging, Imaging and Applied Optics. CT3F4, 2015.
​
4. Deep video gesture recognition using illumination invariants
O. Gupta, and R. Raskar
BigVision, the 4th international workshop on large scale visual recognition and retrieval, 2016
​
5. From non-rigid to null-space
Dan Raviv
IPAM: Geometry and Learning from Data in 3D and beyond: Shape analysis, 2019.
​
​
​
​
​
​
1. Hierarchical matching of non-rigid shapes
Dan Raviv, A. Dubrovina, R. Kimmel
Proc. Scale Space and Variational methods. LNCS 6667, 2012.
​
2. Equi-affine invariant geometries of articulated objects
Dan Raviv, A. M. Bronstein, M. M. Bronstein, R. Kimmel and N. Sochen
Lectures notes in Computer Science. LNCS 7474, 2012. Presented in at Dagstuhl seminar no. 11261.
​
3. Non-rigid shape correspondence using pointwise surface descriptors and metric structures
A. Dubrovina, Dan Raviv, and R. Kimmel
Innovations for Shape Analysis, Mathematics and Visualization 2013. Presented at Dagstuhl seminar no. 11142, 2011.
4. Evaluating local contractions from large deformations using affine invariant spectral geometry
Dan Raviv, J. Lessick and R. Raskar
Statistical atlases and computational modeling of the heart (part of MICCAI), 2014.
​
5. Computational Invariants for Curves and Surfaces
O. Halimi, , Y. Aflalo and R. Kimmel
Processing, Analyzing and Learning of Images, Shapes and Forms: Part 2, Volume 20, 2019.
Conferences Abstract
Conferences peer reviewed
Book chapters
