List of Publications

Encoding Short Ranges in TCAM Without Expansion: Efficient Algorithm and Applications
A. Bremler-Barr, Y. Harchol, D. Hay, and Y. Hel-Or
IEEE/ACM Transactions on Networking, Jan 2018.
Reprint

Depth-Stretch: Enhancing depth perception without depth
H. Hel-Or, Y. Hel-Or, and R. Keshet
2nd NTIRE2017: New Trends in Image Restoration and Enhancement, workshop in The IEEE Conference on Computer Vision and Pattern Recognition (CVPR), July 2017.
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Thought-Controlled Nanoscale Robots in a Living Host
Shachar Arnon, Nir Dahan, Amir Koren, Oz Radiano, Matan Ronen, Tal Yannay, Jonathan Giron, Lee Ben-Ami, Yaniv Amir, Yacov Hel-Or, Doron Friedman and Ido Bachelet
PLOS ONE, 11(8), August 2016
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Media Coverage

Encoding Short Ranges in TCAM Without Expansion: Efficient Algorithm and Applications
Anat Bremler-Barr, Yotam Harchol, David Hay, Yacov Hel-Or
The ACM 28th Symposium on Parallelism in Algorithms and Architectures (SPAA), July, 2016.
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Linear-Time Subspace Clustering via Bipartite Graph Modeling
A. Adler, M. Elad, and Y. Hel-Or
The IEEE Trans. on Neural Networks and Learning Systems, Vol. 26, No. 10, October 2015
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Ultra-Fast Similarity Search Using Ternary Content Addressable Memory
A. Bremler-Barr, D. Hai, Y. Harchol, and Y. Hel-Or
The 11'th International Workshop on Data Management and New Hardware, June 2015.
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Sparse Coding with Anomaly Detection
Amir Adler, Michael Elad, Yacov Hel-Or, and Ehud Rivlin
Journal of Signal Processing Systems, Springer, Vol. 79, Issue 2, pp 179-188, May 2015.
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Matching by Tone Mapping: Photometric Invariant Template Matching
Y. Hel-Or,  H. Hel-Or, and E. David
The IEEE Trans. Pattern Analysis and Machine Intelligence (PAMI), vol. 36 (2), pp. 317-330, Feb 2014.
Reprint,  Technical-Report (extended version), Matlab code

Sparse Coding with Anomaly Detection
Amir Adler, Michael Elad, Yacov Hel-Or, and Ehud Rivlin
2013 IEEE International Workshop on Machine Learning for Signal Processing, Sept. 2013
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Metric Plane Rectification using Symmetric Vanishing Points
M. Lefler, H. Hel-Or, and Y. Hel-Or
The IEEE International Conference on Image Processing (ICIP),  Sept. 2013.
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Multiple Histogram Matching
D. Shapira, S. Avidan, and Y. Hel-Or
The IEEE International Conference on Image Processing (ICIP),  Sept. 2013.
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The Generalized Laplacian Distance and its Applications for Visual Matching
E. Elboher, M. Werman, and Y. Hel-Or
The IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Portland, Oregon, June 2013.
Reprint

Probabilistic Subspace Clustering via Sparse Representations
A. Adler, M. Elad, and Y. Hel-Or
IEEE Signal Processing Letters, Vol. 20 (1), pp. 63-66, Jan. 2013.
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Foreground Detection Using Spatiotemporal Projection Kernels
Y. Moshe, H. Hel-Or, and Y. Hel-Or
The IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Rhode Island, June 2012.
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Robust Estimation of Surface Properties and Interpolation of Shadow/Specularity Components
M.S. Drew, Y. Hel-Or, T. Malzbender, and N. Hajari
Image and Vision Computing, Vol. 30, No. 4-5, May 2012.
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Moving Shadow Detection by Nonlinear Tone-Mapping
E. Bullkich, I. Ilan, Y. Moshe, Y. Hel-Or, and H. Hel-Or
The 19th International Conference on Systems, Signals and Image Processing (IWSSIP), Vienna, April 2012.
Reprint  

Fast Template Matching in Non-Linear Tone-Mapped Images
Y. Hel-Or,  H. Hel-Or, and E. David
The 13h IEEE International Conference on Computer Vision (ICCV),  Barcelona, Nov. 2011.
Reprint   Matlab Code   ICCV 2011 presentation  long-version-presentation

A Weighted Discriminative Approach for Image Denoising with Overcomplete Representations
A. Adler, Y. Hel-Or, and M. Elad
International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Dallas Tx. March 2010.
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A Shrinkage Learning Approach for Single Image Super-Resolution with Overcomplete Representations
A. Adler, Y. Hel-Or, and M. Elad
The 11th European Conference on Computer Vision (ECCV), Crete-Greece, September 2010.
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Specularity and Shadow Interpolation via Robust Polynomial Texture Maps
M. S. Drew, N. Hajari, Y. Hel-Or, and T. Malzbender
British Machine Vision Conference (BMVC), London, U.K., Sept. 2009
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Piecewise-Consistent Color Mappings of Images Acquired Under Various Conditions
S. Kagarlitsky, Y. Moses, and Y. Hel-Or
The 12th IEEE International Conference on Computer Vision (ICCV),  Kyoto, Sept. 2009
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A Discriminative approach for Wavelet Shrinkage Denoising
Y. Hel-Or and D. Shaked
IEEE Trans. on Image Processing, Vol. 17, No. 4, April 2008.
Reprint  Presentation

The Gray-Code Filter Kernels
G. Ben-Artzi, H. Hel-Or, and Y. Hel-Or
IEEE Trans. Pattern Analysis and Machine Intelligence, Vol 29, No. 3, March 2007.
Reprint, Presentation  C code written by Josh Allmann

The Impulse Responses of Block Shift-Invariant Systems and their use for Demosaicing Algorithms
Y. Hel-Or
the IEEE International Conference on Image Processing (ICIP),Genova, Sept. 2005.
Reprint.  Result  examples.

IIrregular Pattern Matching using Projection
M. Ben-Yehuda, L. Cadany, H. Hel-Or, and Y. Hel-Or
the IEEE International Conference on Image Processing (ICIP), Genova, Sept. 2005.
Reprint. 

Real Time Pattern Matching using Projection Kernels
Y.  Hel-Or and H. Hel-Or
IEEE Trans. Pattern Analysis and Machine Intelligence, Vol. 27, No. 9, Sept 2005.
Reprint, Presentation, Software
For a faster approach for pattern matching see The Gray-Code Filter Kernels

On the Design of  Filters For Gradient-Based Motion Estimation
M. Elad, P. Teo, and Y. Hel-Or
Journal of Mathematical Imaging and Vision, Vol. 23,No. 3,  Nov 2005.
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The Canonical Correlations of Color Images and their use for Demosaicing
Yacov Hel-Or
HP Labs Technical Report, HPL-2003-164R1, Feb. 2004.
Reprint,  Presentation

Filtering with Gray-Code Kernels
G. Ben-Arzi, H. Hel-Or, and Y. Hel-Or
The 17th International Conference on Pattern Recognition (ICPR), Cambridge, Aug. 2004.
Reprint

Generalized Pattern Matching using Orbit Decomposition
Y. Hel-Or and H. Hel-Or
The IEEE International Conference on Image Processing (ICIP), Barcelona, Sept. 2003.
Reprint,  Technical Report,  Presention

Real Time Pattern Matching using Projection Kernels
Y. Hel-Or and H. Hel-Or
The 9th IEEE International Conference on Computer Vision (ICCV),  Nice, Oct. 2003.
Reprint, Presentation  

Synthesis of Reflectance Function Textures from Examples
Y. Hel-Or, T. Malzbender, and D. Gelb
The 3rd international workshop on texture analysis and synthesis, Nice, Oct.  2003.
Reprint, Presentation

Demosaicing of Color Images using Steerable Wavelets
Yacov Hel-Or and Daniel Keren
HP Labs Technical Report, HPL-2002-206R1, Aug. 2002.
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Pattern Detection Using a Maximal Rejection Classifier
M. Elad, Y. Hel-Or, and Renato Keshet
Pattern Recognition Letters, Vol. 23, No. 12, pp. 1459-1471, October 2002.
Reprint (337K pdf)  Presentation

Geometric Hashing Techniques for Watermarking
H. Hel-Or, Y. Itzhaki , and Y. Hel-Or
The International Conference of Image Processing (ICIP), Greece, Jan 2001.
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Fast Super-Resolution Reconstruction Algorithm for Pure Translational Motion and Common Space-Invariant Blur
M. Elad and Y. Hel-Or
IEEE Trans. on Image Processing, Vol 10, No 8, pp. 1187-1193, August 2001.
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Pattern Detection Using a Maximal Rejection Classifier
M. Elad, Y. Hel-Or, and Renato Keshet
The 4^th International Workshop on Visual Form, Capri, Italy, May 2001. Also in the 21th Conference of the IEEE in Israel, pp. 193-194, June 2000.
Reprint, Presentation

Optimal Filters For Gradient-Based Motion Estimation
M. Elad, P. Teo, and Y. Hel-Or
The 7^th International Conference on  Computer Vision (ICCV), Greece, Sept. 1999. Also in the 21^th Conference of the IEEE in Israel, pp. 195-197, April 2000.
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A Fast Super-Resolution Reconstruction Algorithm for Pure Translational Motion and Common Space-Invariant Blur
M. Elad and Y. Hel-Or
The 21th Conference of the IEEE in Israel, pp. 402-405, April 2000.

Design of Multi-Parameter Steerable Functions Using Cascade Basis Reduction
P. Teo and Y. Hel-Or
IEEE Trans. Pattern Analysis and Machine Intelligence, Vol 10, No 6, June 1999.
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Canonical Decomposition of Steerable Functions
Y. Hel-Or and P. Teo
Journal of Mathematical Imaging and Vision, Vol 9, No 1, pp. 83-95, July 1998.
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A Common Framework for Steerability, Motion Estimation, and Invariant Feature Detection
Y. Hel-Or and P. Teo
Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, Volume: 5,  pp. 337-340, May 1998.
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Design of Multi-Parameter Steerable Functions Using Cascade Basis Reduction
P. Teo and Y. Hel-Or
The International Conference on  Computer Vision (ICCV), Bombay, Jan. 1998.
Reprint

Lie Generators for Computing Steerable Functions
P. Teo and Y. Hel-Or
Pattern Recognition Letters, Vol 19, pp. 7-17, 1988.
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A computational Approach to Steerable Functions
P. Teo and Y. Hel-Or
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Puerto Rico, pp. 17-19, June 1997.
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Lie Group Approach for Local Steerability
P. Teo and Y. Hel-Or
The 13th Israeli Symposium on Artificial Intelligence, Computer Vision and Neural Networks, Feb. 1997.

Constraint Fusion for Recognition and Localization of Articulated Objects
Y. Hel-Or and M. Werman
International Journal of Computer Vision, Vol 19, no 1, pp. 15-28, July 1996.
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A Common Framework for Steerability, Motion Estimation, and Invariant Feature Detection
Yacov Hel-Or and Patrick C. Teo
Stanford University Technical Report, STAN-CS-TN-96-28, 1996
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Canonical Decomposition of Steerable Functions
Y. Hel-Or and P. Teo
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), San-Francisco, pp. 809-816, Jun. 1996.
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Pose Estimation by Fusing Noisy Data of Different Dimensions
Y. Hel-Or and M. Werman
IEEE Trans. Pattern Analysis and Machine Intelligence, Vol 17, no 2, pp. 195-201, Feb. 1995.
Reprint (227K pdf)

Studies in Correlation Based Registration
Yacov Hel-Or
NASA Ames Technical-Report, NAS-TR-95-054, 1995 
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Recognition and Localization of Articulated Objects
Y. Hel-Or and M.Werman
IEEE Workshop on Motion of Non-Rigid and Articulated Objects, pp. 116-123, Nov. 1994.
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Localization of Primitives using Adaptive Projections
Y. Hel-Or, A. Shmuel, and M. Werman
Journal of Intelligent and Robotic Systems, Vol 11, pp. 161-174, 1994.
Reprint (189K pdf)

Relaxed Parametric Design with Probabilistic Constraints
Y. Hel-Or,  A. Rappoport, and M. Werman
IEEE Trans. Computer-Aided Design, Vol 26, no. 6, pp. 426-434, 1994.
Reprint (205K pdf)

A new Approach to Qualitative Stereo
Y. Hel-Or and S. Edelman
12^th International Conferences on Pattern Recognition (ICPR), Oct. 1994.
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Interactive Design of Smooth Objects with Probabilistic Point Constraints
A. Rappoport, Y. Hel-Or, and M. Werman
ACM Trans. on Graphics, Vol 13, pp. 156-176, 1994.
Reprint (5.4M pdf)

Model Based Pose Estimation of Articulated and Constrained Objects
Y. Hel-Or and M. Werman
3^rd European Conference on Computer Vision (ECCV), May 1994,
also in The British Statistical Society Conference, 1993.
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3D Distance Metric for Pose Estimation and Object Recognition from 2D Projections
Yacov Hel-Or
The Weizmann Institute Technical Report, CS-94-01, Jan 1994.
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Constraint-Fusion for Interpretation of Articulated Objects
Y. Hel-Or and M. Werman
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Jun. 1994,
also in The Israeli Symposium AI, Vision and Pattern Recognition, 1993.
Reprint

Relaxed Parametric Design with Probabilistic Constraints
Y. Hel-Or, A. Rappoport, and M. Werman
2^nd ACM/SIGGRAPH Symposium on Solid Modeling and Applications, Montreal, May 1993.

Model Based Pose Estimation from Uncertain Data
Yacov Hel-Or
Ph.D. dissertation, The Hebrew University in Jerusalem, submitted in 1993.
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Absolute Orientation from Uncertain Point Data: A Unified Approach
Y. Hel-Or and M. Werman
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Jun. 1992.
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Active Feature Localization
Y. Hel-Or, A. Shmuel, and M. Werman
Active Perception and Robot Vision, Springer Verlag, Aug. 1991.

Characterization of Right-Handed and Left-Handed Objects
Y. Hel-Or, S. Peleg, and D. Avnir
Computer Vision, Graphics and Image Processing, Vol 53, pp. 297-302, Apr. 1991.
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Mathematical Morphology and Active Contour Model: A Cooperative Approach for Segmentation of Lung Contours in CT
F. Preteux and Y. Hel-Or
CAR'91, Computer Assisted Radiology, pp. 563-568, Springer Verlag, Berlin, Jul. 1991.

Localization of Primitives using Adaptive Projections
Y. Hel-Or, A. Shmuel, and M. Werman
Mathematical Methods of Robotics, Antwerp, 1991.

Texture Fields and Texture Flows: Sensitivity to Differences
Y. Hel-Or and S. W. Zucker
Spatial Vision, Vol. 4, pp. 131-139, Feb. 1990.

Two Dimensional Rotational Dynamic Chirality and a Chirality Scale
Y. Hel-Or, S. Peleg, and D. Avnir
Langmuir: The ACS Journal of Surfaces and Colloids, Vol. 6, Nov. 1990.
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Pattern Recognition and Estimation of Micronodulation in Pulmonary CT images
F. Preteux, M. Remy, and Y. Hel-Or
76th Scientific Assembly of the Radiological Society of North America, Nov. 1989.

How to Tell Right from Left
Y. Hel-Or, S. Peleg, and H. Zabrodsky
IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Jun. 1988.
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