Research Interests
Research Interests
Wireless Video Streaming Video Compression MPEG-7 Media Databases Multiscale Image Analysis Computer Vision 
Selected Publications
A. M.Ferman,S. Krishnamachari, A. M. Tekalp, et.al.,, Group-of-frame/Picture Histogram Descriptors for Multimedia Applications in IEEE International Conference on Image Processing, Sep. 2000.
S. Krishnamachari and M. Abdel-Mottaleb, Compact Color Descriptor for Fast Image and Video Segment Retrieval in IS&T/SPIE Conference on Storage and Retrieval of Media Databases 2000, Jan 2000
(PDF Version)
(Accepted by MPEG-7 as the Compact Color Descriptor)
M. Abdel-Mottaleb, et.al., MPEG 7: A Content Description Standard Beyond Compression in IEEE 42nd Midwest Symposium on Circuits and Systems, MWSCAS'99, 1999.
(PDF Version)
S. Krishnamachari and M. Abdel-Mottaleb, Image Browsing using Hierarchical Clustering in Proceedings of the Fourth IEEE Symposium on Computers and Communications, ISCC'99, 1999.
(PDF Version)
M. Abdel-Mottaleb, G. Vaithilingam, and S. Krishnamachari
Signature-based Image Identification
S. Krishnamachari and M. Abdel-Mottaleb, Hierarchical clustering algorithm for fast image retrieval in IS&T/SPIE Conference on Storage and Retrieval for Image and Video Databases VII, 1999. (PDF Version)
S. Krishnamachari and M. Abdel-Mottaleb, A Scalable Algorithm for Image
Retrieval by Color in Intl. Conf. on Image Processing, 1998.
(PDF Version)
S. Krishnamachari and R. Chellappa, GMRF Models and Wavelet Decomposition for
Texture Segmentation in Intl. Conf. on Image Processing, 1995.
(PDF Version)
S. Krishnamachari and R. Chellappa,
Multiresolution GMRF Models for Texture Segmentation
in Proc. of Intl. Conf. on Acoustics, Speech and Signal Processing , 1995.
(PDF Version)
R. Chellappa, L.S. Davis, et.al.,
High Performance Computing for Image Classification
in Proc. of First Intl. workshop on Parallel Processing , 1995.
(PDF Version)
S. Krishnamachari and R. Chellappa,
Modeling Gauss Markov Random Fields at Multiple Resolutions
in Proc. of IEEE Information Theory and Statistics Workshop, Nov. 1994.
(PDF Version)
J. R. Ohm, L. Cieplinski, H. J. Kim, S. Krishnamachari, et.al.,
MPEG-7 Color Descriptors, in
Introduction to MPEG-7: Multimedia Content Description Language ,
edited by B. S. Manjunath, P. Salembier and T. Sikora, John Wiley & Sons, 2001.
M. Abdel-Mottaleb, S. Krishnamachari and N.J. Mankovich, Performance Evaluation of Clustering Algorithms for Scalable Image Retrieval, in
Empirical Evaluation Techniques in Computer Vision, edited by K. Bowyer and P. J. Phillips, IEEE Computer Society, 1998
(PDF Version)
S. Krishnamachari and R.Chellappa,
Multiresolution GMRF Models
for Image Segmentation in Advances in Image Understanding: A Festschrift for Azriel Rosenfeld, Edited by K. Bowyer and
N. Ahuja.
(PDF Version)
M. Abdel-Mottaleb, S. Krishnamachari and S. Dagtas,
S. Krishnamachari and R. Chellappa,
Multiresolution Gauss-Markov Random Field Models for Texture Segmentation, IEEE Transactions on Image Processing, Feb 1997.
(PDF Version)
S. Krishnamachari and R.Chellappa ,
Delineating Buildings by
Grouping lines with MRFs
in IEEE Transactions on Image Processing, Jan 1995
(PDF Version)
S. Krishnamachari,
Hierarchical Markov
Random Fields for Image Analysis
Ph.D. Dissertation, May 1995.
(PDF Version)