Moshe Porat's Home Page

Moshe Porat
Department of Electrical Engineering
Technion - Israel Institute of Technology
Haifa 32000, Israel

Email: mp @ ee.technion.ac.il (mind the gaps - and please use PDF or JPEG files if you write in Hebrew)
URL: http://vision.technion.ac.il/mp

Phone: +(972) 4 829-4684

Fax: +(972) 4 829-5757.

Office: 705, Electrical Engineering Meyer Building

Research Interests

Signal and Image Processing

Computer Vision

Biological Visual and Auditory Systems

Time-Frequency Representations

Multimedia

Image and Video Compression

Electronic Circuits

Recent Teaching

044105 - Theory of Electronic Circuits - undergraduate course (Winter 2008/9)

044105 - Theory of Electronic Circuits - undergraduate course (Winter 2007/8)

044142 - Linear Electronic Circuits - undergraduate course (Winter 2005/6)

044142 - Linear Electronic Circuits - undergraduate course (Winter 2004/5)

046332 - Visual and Auditory Systems - joint graduate/undergraduate course (Spring 2009)

046332 - Visual and Auditory Systems - joint graduate/undergraduate course (Winter 2007/8)

048860 - Image Processing - graduate course (Spring 2009)

048860 - Image Processing - graduate course (Spring 2008)

048922 - Vision, Image structure and Computer Vision Lab - graduate course (see also this - information for students)

048747 - Biolgical Signals and Systems Lab - graduate course (information for students)

Recent Journal Publications

Hagai Kirshner and Moshe Porat, "On the Role of Exponential Splines in Image Interpolation", IEEE Trans. on Image Processing, vol. 18, no.10, pp. 2198-2208 (2009). abstract
Shira Nemirovsky and Moshe Porat, "On Texture and Image Interpolation using Markov Models", Signal Processing: Image Communication, Volume 24, pp. 139-157 (2009). abstract
Evgeny Gershikov, Emilia Lavi-Burlak and Moshe Porat, "Correlation-Based Approach to Color Image Compression", Signal Processing: Image Communication, Volume 22, Issue 9, pp. 719-733 (2007) abstract
Tsvi G. Dvorkind, Hagai Kirshner, Yonina C. Eldar and Moshe Porat, "Minimax Approximation of Representation Coefficients From Generalized Samples", IEEE Trans. on Signal Processing, Volume 55, Issue 9, pp. 4430 - 4443 (2007). abstract
Hagai Kirshner and Moshe Porat, "On the Approximation of L2 Inner Products from Sampled Data", IEEE Trans. on Signal Processing, Vol. 55, No. 5, pp. 2136-2144 (2007) abstract
Evgeny Gershikov and Moshe Porat, "On Color Transforms and Bit Allocation for Optimal Subband Image Compression", Signal Processing: Image Communication, Vol. 22, pp. 1-18 (2007). abstract
Y. Roterman and M. Porat, Color Image Coding using Regional Correlation of Primary Colors", Image and Vision Computing, Vol. 25, pp. 637-651 (2007). abstract
A. Francos and M. Porat, "Non-Stationary Signal Processing Using Time-Frequency Filter Banks with Applications", Signal Processing, Volume 86, pp. 3021-3030 (2006). abstract

Earlier Most Cited Publications

M. Porat and Y.Y. Zeevi, "The generalized Gabor scheme of image representation in biological and machine vision", IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI) 10:44, pp. 452-468, 1988 (paper cited by 318).
M. Porat and Y.Y. Zeevi, "Localized texture processing in vision: analysis and synthesis in the Gaborian space", IEEE Transactions on Biomedical Engineering (BME) 36:11, 115-129, 1989 (paper cited by 154). Appeared also in the book Neuro-Vision Systems, Gupta and Knopf (Eds) IEEE Press, which contains major works of the 50 years 1943-1993.
Yuval Eldar, Michael Lindenbaum, Moshe Porat, Yehoshua Y. Zeevi, "The farthest point strategy for progressive image sampling", IEEE Transactions on Image Processing, 1997 (paper cited by 83).

Recent Conferences

O. Gendler and M. Porat, "Toward Optimal Real-Time Transcoding using Requantization in the DCT Domain", accepted, IEEE Int'l conference on Image Processing, ICIP 2009.

H. Kirshner and M. Poart, "A Stochastic Model-Based Approach to Image and Texture Interpolation", accepted, IEEE Int'l conference on Image Processing, ICIP 2009.

E. Gershikov and M. Porat, "Optimal Color Spaces for Image Demosaicing", accepted, IEEE Int'l conference on Image Processing, ICIP 2009.

M. Porat, "A Vector Quantization Approach to Multimedia Systems", the 15th International Conference on Virtual Systems and Multimedia, VSMM 2009, Vienna.

E. Gershikov and M. Porat, "On Color Optimization for Image Compression and Representation", the 15th International Conference on Virtual Systems and Multimedia, VSMM 2009, Vienna.

E. Gershikov and M. Porat, "Image Interpolation using Optimized Color Transforms", Eusipco 2009.

E. Braiman and M. Porat, "Diagnosis of acute myocardial infarction using tissue deformation in echocardiographic imaging", Eusipco 2009.

O. Gendler and M. Porat, "On Efficient Quantization for Image Recompression", Eusipco 2009.

H. Kirshner and M. Porat, "On Spectral Estimation and Fourier Transform Approximation from Sampled Data", Eusipco 2009.

M. Porat, "Video Mobile Communication: A Memory-Based Approach", Mobility 2008, Taiwan.

Evgeny Gershikov and Moshe Porat "On Image Compression Systems for Band-limited Information Networks", The International Symposium on Intelligent Systems and Informatics, SISY 2008.

Shira Nemirovsky and Moshe Porat, "On Wide-Sense Markov Random Fields and their Application to Improved Texture Interpolation", EUSIPCO 2008, Switzerland.

E. Gershikov and M. Porat, "Optimal Color Image Compression using Localized Color Components Transforms", EUSIPCO 2008, Switzerland.

H. Kirshner and M. Porat, "Are Polynomial Models Optimal for Image Interpolation?", EUSIPCO 2008, Switzerland.

Moshe Porat, "On Data Analysis and Modeling in Imaging Systems", CDAM 2007.

Hagai Kirshner and Moshe Porat, "On Derivative Approximation From Sampled Data", SampTA05 International Conference, 2007.

Eyal Braiman and Moshe Porat, "On 3D Tracking for Echocardiographic Classification of Acute Myocardial Infarction", EUSIPCO 2007.

Ronen Sher and Moshe Porat, "CCD Image Demosaicing using Localized Correlations", EUSIPCO 2007.

Evgeny Gershikov and Moshe Porat , "Correlation vs. Decorrelation of Color Components in Image Compression - Which is Preferred?", EUSIPCO 2007.

Evgeny Gershikov and Moshe Porat, "On a Perceptual Rate-Distortion Model for Color Image Coding", EUSIPCO 2007.

Hagai Kirsher and Moshe Porat, "On Interpolation of Differentially Structured Images", EUSIPCO 2007.

Moshe Porat, "An Image Processing Approach to Diamond Inspection and Evaluation", accepted, the 24th European Crystallographic Meeting, 2007.

Hagai Kirshner and Moshe Porat, "On optimal derivative DSP operators for sampled data", accepted, The DSP Conference, Cardiff 2007.

Evgeny Gershikov and Moshe Porat, "Data Compression of Color Images using a Probabilistic Linear Transform Approach", The Sixth International Conference on Numerical Methods and Applications, NM&A 2006.

Emilia Lavi-Burlak and Moshe Porat, "Color Image Compression using Mutual Spectral Information", IEEE Convention Eilat, 2006.

Evgeny Gershikov, Emilia Lavi-Burlak and Moshe Porat, "On a Rate-Distortion Model for Color Images using a Correlation-Based Approach " IEEE Convention Eilat, 2006.

Evgeny Gershikov and Moshe Porat, "An Optimization-Based Approach to Color Image Compression using a Rate-Distortion Model", the International Conference on Modelling, Simulation and Optimization MSO 2006.

Hagai Kirshner, Tsvi G. Dvorkind, Yonina C. Eldar and Moshe Porat, 'On Signal Representation From Generalized Samples: Minmax Approximation with Constraints, EUSIPCO 2006.

Evgeny Gershikov and Moshe Porat "A Rate-Distortion Approach to Optimal Color Image Compression", EUSIPCO 2006.

Tsvi G. Dvorkind, Hagai Kirshner, Yonina C. Eldar and Moshe Porat, Approximating representation coefficients from non ideal samples, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), France 2006.

Recent Book Chapters

Evgeny Gershikov and Moshe Porat, "Data Compression of Color Images using a Probabilistic Linear Transform Approach", in LNCS # 4310, T. Boyanov, S. Dimova, K. Georgiev, G. Nikolov (Eds.) pp. 582-589, Springer-Verlag Berlin Heidelberg (2007).
M. Porat, "On Coding and Codebooks in Multimedia Information Systems", in "Information Systems Development", pp. 243-252, Springer, O. Vasilecas et al.Eds, (2005).
H. Kirshner and M. Porat, "From Analog Information to Digital Databases - Does it Keep Everything Intact?", in "Information Systems Development", pp. 377-388, Springer, O. Vasilecas et al.Eds, (2005).

Patents

N.S. Jayant and M. Porat, Method and apparatus for image processing using model-based localized quantization, US Patent #5,828,413, 1998. Also registered as European Patent EP0765085, Japanese Patent JP9172378, and Canadian patent CA2180298.

Graduate Students

Jacques Behar - Information in Localized Phase of Signals and its Role in Vision.
Zvi Dubiner - The Gabor Representation as a Tool for Systems Synthesis and Analysis in the Position-Frequency space.
Hayit Greenspan - Image Analysis in a Position -- Orientation Space, with Y.Y. Zeevi.
Nir Katzir - Planar Curve Segmentation for Recognition of Partially Occluded Shapes.
Tamar Genossar - On Non-Orthogonal Representations and Gabor Expansion.
Yuval Eldar - Irregular Image Sampling using the Voronoi Tessellation. System.
Sharon Urieli - Image Analysis and Representation by Spectral Phase.
Amir Francos - Signal Analysis and Synthesis using Positive Time-Frequency
Gal Shachor - Signal Reconstruction from Partial Information in the Position-Frequency Space.
Yossi Shapiro - Signal Reconstruction from Spectral Amplitude.
Nir Brueller - Non-Uniform Sampling of Signals with Time varying Characteristics. Summary-English Thesis-Hebrew
Larisa Goffman-Vinopal - The Effect of Intercolor Correlation on Color Image Compression.
Ari Shenhar - Processing of Spatial Distortions in Images.
Gil Michael - On Signal Reconstruction from Fourier Magnitude.
Dmitry Furman - Compression of Video Sequences using Three Dimensional Vector Quantization.
Elad Klein - Model Order Selection for Harmonic Signals by Super Resolution Methods.
Xiao Qiong Tang - On Special Signals in Image Reconstruction from Partial Spectral Information.
Lior Assouline - On Quality Criteria for Time-Varying Filtering.
Don Chen - On Gemstone Feature Recognition, with G. CogHill.
Amir Leventer - On Optimal Bit Rate Reduction in Video Coding.
Yair Kerner - Quality enhancement of ultrasound imaging using compounding.
Sharon Harell - Development of a computerized approach for quantitative analysis of the 'Myocardial Blush Grade' in patients undergoing angiography, Primary adviser R. Beyar.
Yalon Roterman - Color image coding using regional correlation of primary colors.
Roni Mittelman - On Multi-Resolution Statistical Models for Image Processing.
Emilia Lavi (Burlak) - Correlation vs. Decorrelation of Color Components in Image Compression.
Hagai Kirshner - On sampling-invariant charecteristics in signal representation.
Evgeny Gershikov - On Subband Transform Coding for Color Image Compression (MSc Thesis completed, presently a PhD student).
Ronen Sher - On Image Interpolation using Statistical Models.
Shira Nemirovsky - Image Interpolation using Statistical Models.
Gil Rivnai - On the Adaptation Process to Optical Signals in the Retina (with I. Perlman, in progress).
Rudi Primorac - Color video coding using regional and temporal correlation of primary colors (in progress).
Ora Gendler - On Transcoding Optimization using Requantization (in progress).

Professional Affiliations

Senior Member - IEEE
Israel's representative - IAPR

Last update: January 6, 2009.