People - HP Labs Israel

Contact Information
Hewlett-Packard Laboratories - Israel
Technion City, Haifa, Israel
Phone: +972-(0)4-823-1237, ext. 119
Fax: +972-(0)4-822-0407
E-mail: renato@hpli.hpl.hp.com

Education
B.Sc. Electrical Engineering, Military Institute of Engineering,
Rio de Janeiro, Brazil, 1988

D.Sc. Electrical Engineering, Technion--Israel Institute of Technology,
Haifa, Israel, 1995 (Direct doctoral program)

Fields of Interest

Image Processing: morphological or linear methods, fixed or adaptive, linear or nonlinear filtering, enhancement, imaging.

Image Analysis: segmentation, feature extraction, pattern recognition, edge detection, etc.

Image Representation: fourier transform, subband decomposition, wavelet transform, fractal methods, multi-resolution pyramids, morphological pyramids.

Image coding of documents or grayscale images, using transform, prediction, vector or scalar quantization, segmentation, etc., or JPEG, MPEG, JBIG, or other standards.

Awards

• Eliahu I. and Joyce JURY Award for distinguished students, April 1992
• Miriam and Aaron GUTWIRTH Memorial Fellowship, March 1993
• Olendorff Memorial Scholarship, May 1993
• Distinguish Student Certificate from the Israel's Parliament (Knesset), June 1993
• Miriam and Aaron GUTWIRTH Memorial Fellowship, March 1995

Journal Publications

1. R. Kresch and D. Malah, "Morphological Reduction of Skeleton Redundancy", Signal Processing, Vol. 38, pp. 143-151, September 1994.
2. N. Merhav and R. Kresch, "Approximate convolution using DCT coefficient multipliers," IEEE Trans. on Circuits and Systems for Video Technology, vol. CSVT-8, no. 4, pp. 378-385, August 1998.
3. R. Kresch and D. Malah, "Skeleton-Based Morphological Coding of Binary Images", IEEE Trans. Image Processing, Vol. 7, No. 10, pp. 1387-1399, October 1998.
4. R. Kresch and N. Merhav, "Fast DCT Domain Filtering Using the DCT and the DST", IEEE Trans. Image Processing, Vol. 8, No. 6, pp. 821-833, June 1999.
5. R. Keshet (Kresch), "Mathematical morphology on complete semilattices and its applications to image processing", Fundamenta Informaticae, Vol. 41, No. 1-2, pp. 33-56, January 2000.

Recent Conference Presentations

1. R. Kresch and D. Malah, "An Efficient Coding Scheme for Binary Images Based on the Morphological Skeleton Representation," Proc. IEEE 18th Convention of Electrical and Electronics Engineers in Israel, pp. 2.2.3/1-5, Tel Aviv, March 1995.
2. R. Kresch and D. Malah, "New Morphological Skeleton Properties Leading to Its Efficient Coding," IEEE Workshop on Non-Linear Signal and Image Processing 1995, Halkidiki, Greece, June 1995.
3. R. Kresch and D. Malah, "Quadtree and Bit-Plane Decomposition as Particular Cases of the Generalized Morphological Skeleton," IEEE Workshop on Non-Linear Signal and Image Processing 1995, Halkidiki, Greece, June 1995.
4. R. Kresch and N. Merhav, "Fast DCT Domain Filtering Using the DCT and the DST," Proc. IEEE 19th Convention of Electrical and Electronics Engineers in Israel, pp. 399-402, Jerusalem, November 1996.
5. R. Kresch, "Extension of Morphological Operations to Complete Semilattices and Its Applications to Image and Video Processing," Mathematical Morphology and its Applications to Image and Signal Processing (Proc. of ISMM'98), H.J.A.M. Heijmans and J.B.T.M. Roerdink (eds.), pp. 35-42, June 1998.
6. R. Keshet (Kresch), "A morphological view on traditional signal processing," Mathematical Morphology and its Applications to Image and Signal Processing V (Proc. of ISMM'2000), Palo Alto, California, USA, June 2000.
7. H.J.A.M. Heijmans and R. Keshet (Kresch), "First steps towards a self-dual morphology," Proc. IEEE International Conference on Image Processing (ICIP'2000), Vancouver, Canada, September 2000.

HPL Technical Reports (External)

1. Renato Kresch and Neri Merhav
   Fast DCT Domain Filtering Using the DCT and the DST, December 1995.
2. Neri Merhav and Renato Kresch
   Approximate Convolution Using DCT Coefficent Multipliers, December 1995.
3. Renato Kresch
   Extension of Morphological Operations to Complete Semilattices and Its Applications to Image and Video Processing, January 1997.
4. Renato Kresch, Neri Merhav, Vasudev Bhaskaran
   A Motion Estimation Scheme Based on the DCT and the DST (MECS), April 1997.
5. Michael Elad, Yacov Hel-Or, and Renato Kresch
   Approximated Invariant Method (AIM): A Rejection Based Classifier, September 1998.
6. Renato Kresch
   Traditional Signal Processing Seen from the Morphological Poset-Theoretical Point of View, March 1999.
7. Henk Heijmans and Renato Keshet (Kresch)
   Inf-Semilattice Approach to Self-Dual Morphology, August 2000.

Patents and Patent Applications

1. Renato Kresch and Neri Merhav
   Explicit DST-based filter operating in the DCT domain.
   US Patent No. 6,125,212, September 26, 2000.
2. Renato Kresch and Neri Merhav
   Implicit DST-based filter operating in the DCT domain.
   Filed with the US Patent and Trademark Office, Application Serial # 09/069,550, April 29, 1998.
3. Renato Kresch
   System and Method for Face Detection Using Candidate Image Region Selection
   Filed with the US Patent and Trademark Office, Application Serial # 09/229,052, January 11, 1999.
4. Michael Elad, Renato Kresch, and Yacov Hel-Or
   Approximated Invariant Method (AIM): A Rejection Based Classifier
   Filed with the US Patent and Trademark Office, Application Serial # 09/326,120, June 4, 1999.
5. Renato Kresch, and Doron Shaked
   A Memory Buffer Management Method Reducing Memory Requirements in Error Diffusion Halftone Applications
   Filed with the US Patent and Trademark Office, Application Serial # 09/375,703, August 16, 1999.
6. Renato Kresch and Doron Shaked
   System and Method for Counterfeit Protection
   Filed with the US Patent and Trademark Office, Application Serial # 09/429,515, October 28, 1999.
7. Renato Kresch and Neri Merhav
   A Motion Estimation Scheme Based on the DCT and on the DST (MECS).
   Filed with the US Patent and Trademark Office, Application Serial # 09/488,343, February 2, 2000.