Margarita Osadchy

Research Interests:

My research interests are computer vision, image processing, and machine learning. Within these areas I focus on:

• Automatic extraction and recognition of objects in a scene
• Event recognition
• Illumination insensitive recognition of objects with different materials properties such as matte, specular, transparent and their combinations
• Photometric image matching
• 3D recovery/modeling and image based rendering
• Privacy preserving face recognition

Courses:

Current:

Lab in Computer Vision  203.4720
Unsupervised Learning  203.4700
Introduction to Machine Learning  203.4770

Previous:

Introduction to Computer Science  203.1110

Publications:

Refereed Journal Publications:

• M. Osadchy, R. Kolodny, Maps of protein structure space reveal a fundamental relationship between protein structure and function, Accepted to Proc. Natl. Acad. Sci., [PDF,Suppl. Material]
• M. Osadchy, D.W. Jacobs, R. Ramamoorthi, D. Tucker, Using Specularities in Comparing 3D Models and 2D Images, CVIU, Vol. 111(3), 2008, pp. 275-294. PDF
• M. Osadchy, M. Lindenbaum, D.W. Jacobs, Surface Dependent Representations for Illumination Insensitive Image Comparison, IEEE Transactions on Pattern Analysis and Machine Intelligence, Volume 29(1), 2007, pp. 98-111. PDF
• M. Osadchy, Y. LeCun, M. Miller, Synergistic Face Detection and Pose Estimation with Energy-Based Models, Journal of Machine Learning Research, Volume 8, 2007, pp.1197 – 1215. PDF
• M. Osadchy and D. Keren, Efficient Detection under Varying Illumination Conditions and Image Plane Rotations, Computer Vision and Image Understanding, Volume 93, Issue 3, March 2004, pp. 245-259.
• M. Osadchy and D. Keren, A Rejection-Based Method for Event Detection in Video, IEEE Trans. on circuits and systems for video technology, Volume 14, Issue 4, April 2004, pp. 534-541.
• D. Keren M. Osadchy and C. Gotsman, Anti-Faces: A novel, fast method for image detection, IEEE Transactions on Pattern Analysis and Machine Intelligence, No. 7, July 2001, pp. 747-761.
• D. Keren and M. Osadchy, Restoring subsampled color images, Machine Vision and Applications, Vol. 11, issue 4, 1999, pp.197-202.

Conference Proceedings:

• A.Netz and M.Osadchy, Using Specular Highlights as Pose Invariant Features for 2D-3D Pose Estimation, IEEE Conf. on Computer Vision and Pattern Recognition (CVPR), 2011 [PDF, project ]
• B. Mosckovich, M. Osadchy, Illumination Invariant Representation for Privacy Preserving Face Identification, Workshop on Biometrics 2010, CVPRW 2010. Available files: [ project and code ]
• M. Osadchy, B. Pinkas, A. Jarrous and B. Moskovich,SCiFI - A System for Secure Face Identification, 31st IEEE Symposium on Security & Privacy, May 16-19, 2010, Oakland, CA. (Received the best paper award!) [ PDF, project and code ]
• M. Osadchy, E. Morash, Loose shape model for discriminative learning of object categories, IEEE Conf. on Computer Vision and Pattern Recognition (CVPR),2008, PDF.
• M. Osadchy, D. Keren, Incorporating the Boltzmann Prior in Object Detection Using SVM, IEEE Conf. on Computer Vision and Pattern Recognition (CVPR), 2006, pp. 2095-2101, PDF
• M. Osadchy, D.W. Jacobs, M. Lindenbaum, On the Equivalence of Common Approaches to Lighting Insensitive Recognition, Proc. IEEE International Conference on Computer Vision (ICCV) 2005.
• M. Osadchy, M.L. Miller, Y. LeCun, Synergistic Face Detection and Pose Estimation with Energy Based Models, Advances in Neural Information Processing Systems (NIPS) 2004.
• M. Osadchy, M. Lindenbaum and D.W. Jacobs, Whitening for photometric comparison of smooth surfaces, Proc. of European Conference on Computer Vision (ECCV), 2004.
• M. Osadchy, M.L. Miller, Y. LeCun, Synergistic Face Detection and Pose Estimation, Machine Learning Workshop, Snowbird, 2004.
• M. Osadchy, M. Lindenbaum and D.W. Jacobs, Whitening for photometric comparison of smooth surfaces, Int'l Workshop on Statistical and Computational Theories of Vision, 2003.
• M. Osadchy, D.W. Jacobs and R. Ramamoorthi, Using specularities for recognition, IEEE International Conference on Computer Vision (ICCV), 2003, pp. 1512-1519.
• M. Osadchy, D. Keren and Y. Gal, Anti-Sequences: Event detection by frame stacking, IEEE Conf. on Computer Vision and Pattern Recognition (CVPR), 2001, (II: 46-51).
• M. Osadchy and D. Keren, Image Detection under varying illumination and pose, IEEE International Conference on Computer Vision (ICCV), 2001, (II: 668-673).
• D. Keren, M.Osadchy and C. Gotsman, Anti-Faces for detection, Proc. of European Conference on Computer Vision (ECCV), June 2000.

Patents:

• M.L. Miller, M.Osadchy, and Y. LeCun, Synergistic face detection and pose estimation with energy-based models, US Patent No. 7236615.
• M. Osadchy and D. Reisfeld, Method and apparatus for intracardially surveying conditions of a chamber of a heart, US patent No. 6385476.
• M. Osadchy and D. Reisfeld, Method and apparatus for mapping a chamber of a heart, US patent No. 6368285.