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Alexander Shekhovtsov

Research fellow, PhD student

 

Address:

 

Karlovo namesti 13, 121-35 Praha 2, 
Czech Republic
Tel.: +420-224-355-747
Fax: +420-224-357-385
E-mail:

shekhovt@cmp.felk.cvut.cz

Center for Machine Perception
Department of Cybernetics
Faculty of Electrical Engineering
Czech Technical University in Prague

Research interests:

Discrete and continuous optimization with applications in computer vision. Markov random fields (energy minimization in computer vision). Machine learning.

Software:

Publications:
  • A. Shekhovtsov, V. Hlavac: A Distributed Mincut/Maxflow Algorithm Combining Path Augmentation and Push-Relabel, EMMCVPR 2011. [pdf], [bib] [slides]. Technical Report with efficient implementation [pdf], [bib] (much faster). [code].

  • A. Shekhovtsov, V. Hlavac: On Partial Opimality by Auxiliary Submodular Problems, Control Systems and Computers, 2011(2). [pdf], [bib].

  • A. Shekhovtsov, V. Hlavac: Joint Image GMM and Shading MAP Estimation, ICPR 2010. [pdf], [bib], Technical Report [pdf]

  • A. Shekhovtsov, V. Hlavac: A Lower Bound by One-against-all Decomposition for Potts Model Energy Minimization, CVVW 2008. [pdf], [bib], [slides]
     
  • P. Kohli, A. Shekhovtsov, C. Rother, V. Kolmogorov, P. Torr: On partial optimality in multi-label MRFs. ICML 2008: Proceedings of the 25th International Conference on Machine Learning. [pdf], [bib], [slides]

  • Shekhovtsov, J.D. Garcia-Arteaga, T. Werner: A Discrete Search Method for Multi-modal Non-Rigid Image Registration. NORDIA 2008: Proceedings of the 2008 IEEE CVPR Workshop on Non-Rigid Shape Analysis and Deformable Image Alignment. [pdf], [bib], [slides]

  • Shekhovtsov, I. Kovtun, V. Hlavac: Efficient MRF Deformation Model for Non-Rigid Image Matching. CVIU 2008. [ScienceDirect]  ([preprint] / [ealier version]), [bib], [videos]

  • T. Werner, A. Shekhovtsov: Unified Framework for Semiring-Based Arc Consistency and Relaxation Labeling. Computer Vision Winter Workshop , St. Lambrecht, Austria, February 2007.

  • Shekhovtsov: Supermodular decomposition of structural labeling problem (in Russian). Control Systems and Computers #1, 2006, pp.39-48; Kiev, Ukraine. [pdf], [bib]

  • B. Flach, D. Schlesinger, A. Shekhovtsov: A Higher Order MRF-Model for Stereo-Reconstruction, Pattern Recognition, LNCS vol. 3175, 2004, 440-446. [link]

 

Technical Reports
  • A. Shekhovtsov, P. Kohli, C. Rother: Curvature Prior for MRF-based Segmentation and Shape Inpainting, Research Report CTU--CMP--2011--11, Czech Technical University. [pdf], [bib]

 

  • A. Shekhovtsov, V. Hlavac: A Distributed Mincut/Maxflow Algorithm Combining Path Augmentation and Push-Relabel, Research Report K333--43/11, CTU--CMP--2011—03, Czech Technical University. [pdf], [bib]

  • A. Shekhovtsov, V. Hlavac: Joint Image GMM and Shading MAP Estimation, Research Report K333–35/10, CTU–CMP–2010–03, Czech Technical University.
    [pdf], [bib]

 

  • A. Shekhovtsov, V. Kolmogorov, P.Kohli, V. Hlavac, C. Rother, P. Torr: LP-relaxation of binarized energy minimization, Research Report CTU--CMP--2007—27, Czech Technical University, update 2008. [pdf], [bib]

 

 

 

voxelmrf

voxelmrf1

potts_hard

optimality