Ashok C. Popat

Email: my-last-name@alum.mit.edu

Research Interests

Signal and image processing, pattern recognition, information retrieval, source coding, digital libraries

Education

SB, Electrical Engineering and Computer Science, MIT, 1986.
SM, Electrical Engineering and Computer Science, MIT, 1990.
PhD, Media Lab, MIT, 1997.

Experience

Google, Mountain View, CA, August 2005–present

Xerox PARC, Palo Alto, CA, 1997–August 2005

LTS, EPFL, Lausanne, Switzerland, 1990–91

Hewlett-Packard, Santa Rosa, CA, 1986–88

Motorola/Codex, Mansfield, MA, part-time 1982–85

At Stanford I taught EE292B, Electronic Documents: Paper to Digital, Fall 2002–03 and Spring 2004–05.

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• More recent publications are listed here and here and here
• "Cluster-based probability model and its application to image and texture processing." Kris Popat and Rosalind W. Picard, IEEE Transactions on Image Processing, February 1997. (TR #351)
• "Exaggerated consensus in lossless image compression." Kris Popat and Rosalind W. Picard, ICIP-94: Proceedings of the 1994 International Conference on Image Processing, Austin, Texas, November 1994. (TR #289)
• "Cluster-based probability model applied to image restoration and compression." Kris Popat and Rosalind W. Picard, ICASSP-94: Proceedings of the 1994 International Conference on Acoustics, Speech, and Signal Processing, Adelaide, Australia, April 1994. (TR #253)
• "Novel cluster-based probability model for texture synthesis, classification, and compression." Kris Popat and Rosalind W. Picard, Proc. SPIE Visual Communications '93, Cambridge, Massachusetts, 1993. (TR #234)
• "Image sequence coding using motion-compensated subband decomposition." André Nicoulin, Marco Mattavelli, Wei Li, Andrea Basso, Ashok C. Popat, and Murat Kunt, In I. Sezan and R. L. Lagendijk, editors, Motion Analysis and Image Sequence Processing, pp. 225-256. Kluwer Academic Publishers, Boston, 1993.
• "Robust quantization of memoryless sources using dispersive FIR filters." Kris Popat and Kenneth Zeger, IEEE Transactions on Communications,vol. 40, no. 11, November 1992, pp. 1670--1674.
• "A new method for the design of non-uniform filter banks." Wei Li, Ashok Popat, and Murat Kunt, Proc. International Symposium on signals, systems and electronics, Paris, September 1-4, 1992, pp. 146-149.
• "Design of parallel multiresolution filter banks by simulated annealing." Wei Li, Andrea Basso, Ashok Popat, André Nicoulin, and Murat Kunt, Proceedings of the Visual Communications and Image Processing '91 Conference, Boston, USA, Nov. 10-13, 1991, Vol. 1605, pp. 124-136.
• "Subband coding of video using energy-adaptive arithmetic coding and statistical feedback-free rate control." Ashok Popat, André Nicoulin, Andrea Basso, Wei Li, and Murat Kunt, Proceedings of the Visual Communications and Image Processing '91 Conference, Boston, USA, Nov. 10-13, 1991, Vol. 1605, pp. 940-953.(PostScript)
• "Numerical design of parallel multiresolution filter banks for image coding applications." Ashok Popat, Wei Li, and Murat Kunt, Proceedings of the SPIE 1991 International Symposium on Optical Applied Science and Engineering, San Diego, California, July 21-26, 1991, Vol. 1567, pp. 341-353.(PostScript)
• Statistical procedure for rate control in digital image and video transmission (``Procede de regulation statistique de debit pour la transmission d'images et de sequences d'images numeriques'') Ashok Popat, Wei Li, Andrea Basso, and Murat Kunt, Swiss patent 2168/91-7, July 19, 1991. Assignee: Signal processing laboratory, Swiss Federal Institute of Technology.
• "Robust Quantization of Memoryless Sources." Ashok C. Popat and Kenneth Zeger, Proceedings of the 1990 International Symposium on Information Theory and its Applications (ISITA'90). Hawaii, U.S.A., November 27-30, 1990.( PostScript)
• Robust bandwidth-efficient HDTV transmission formats William F. Schreiber, William Butera, Warren Chou, Edmond Chalom, Jae S. Lim, Andrew B. Lippman, Peter Monta, Arun N. Netravelli, Ashok Popat, David H. Staelin, and Adam Tom, ATRP Technical Report #102, MIT RLE, October, 1989.
• A compatible high-definition television system using the noise-margin method of hiding enhancement information W.F. Schreiber, E.H. Adelson, A.B. Lippman, Gong Rongshu, P. Monta, A. Popat, H. Sallic, P. Shen, A. Tom, K. Zangi, and A.N. Netravali, SMPTE Journal, Vol. 98, No. 12, pp. 873--9.