Network-friendly Multimedia Compression techniques

Recent technological advances in telecommunication,wireless networks and multimedia systems, and their convergence have enabled many narrow and broadband wireless-based mobile multimedia applications, such as exchange of multimedia data on PDA, pocket-PC and cell-phone. These applications demand new functionalities, such as scalability, content based manipulation, multimedia access tools, robustness in error prone environments and security. Moreover, the characteristics of mobile wireless communication links vary with respect to the time and position.

In multimedia wireless applications, source encoding, data transmission and network should work closely, in order to provide the desired QoS at the user-end. My research involves the design of error-resilient andnetwork-aware scalable multimedia compression techniques, to meet these challenges. I also consider the interactions among computational complexity, error resiliency and scalability features in a compressed bitstream for various wireless network-based applications. The focus is on MPEG-4, H.264/AVC, JSVM and JPEG2000 compression standards, MCTF and wavelet-based techniques.

Projects:

  • Robust Packetization of H.264 based Scalable Video Bitstream for Wireless Channels
  • Error Resiliency Schemes for H.264 Compressed Scalable Video for Wireless Networks
  • Scalable Video Compression techniques
  • JPEG2000, MPEG-4 and H264 Image/Video Compression Standards

Multimedia Compression Publications

2013

W. H. Chung, S. Kumar, S. Paluri, S. Nagaraj, and A. Annamalai Jr., Unequal Error Protection for H.264 Video using RCPC Codes and Hierarchical QAM,  J. Information Processing Systems, Vol. 9(1), March 2013, pp. 53-68.
2012
  1. K. Kambhatla, S. Kumar, P. Cosman, and J. D. Matyjas, H.264/AVC Video Packet Aggregation and Unequal Error Protection for Noisy Channels, IEEE Int. Conf. Image Processing (ICIP 2012), Orlando, FL.

S. Paluri, K. Kambhatla, S. Kumar, B. Bailey, P. Cosman, and J. D. Matyjas, Predicting Slice Loss Distortion in H.264/AVC Video for Low Complexity Data Prioritization, IEEE Int. Conf. Image Processing (ICIP 2012), Orlando, FL.
2011

X.-L. Huang, G. Wang, F. Hu and S. Kumar, The Impact of Spectrum Sensing Frequency and Packet-Loading Scheme on Multimedia Transmission over Cognitive Radio Networks, IEEE Trans. Multimedia, Vol. 13, No. 4, Aug. 2011, pp. 748-761

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A. A. Ramírez-Acosta, M. S. García-Vázquez and S. Kumar, Streaming Media Portability with the Emerging Support OpenMAX, IETE Technical Review, Vol. 28(2), 2011, pp. 146-157.

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K. Kambhatla, S. Kumar and P. Cosman, Prioritized Packet Fragmentation for H.264 Video, IEEE Int. Conf. image Processing (ICIP 2011), Brussels, Belgium, Sept. 12-14, 2011.

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D. Rawat, S. Kumar, S. Nagaraj and John D. Matyjas, Adaptive Modulation Approach for Robust MPEG-4 AAC Encoded Audio Transmission, IEEE MILCOM, Oct. 2011, Accepted.
2010

M. Hosany, S. Kumar and S. Nagaraj,  An Unequal Error Protection Scheme Employing Convolutional Codes and Asymmetric 8PSK Modulation for Robust Transmissionof H.264/AVC Video in Wireless Channels, 4th IEEE Int. Conf. Signal Processing and Communication Systems, ICSPCS'2010, Dec. 13-15, 2010, Australia.

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W.-H. Chung, S. Paluri, S. Kumar, S. Nagaraj and John D. Matyjas, Unequal Error Protection for H.264 Video using RCPC Codes and Hierarchical QAM, IEEE Int. Communications Conf. (ICC’10), May 23 – 27, 2010, Cape Town, S. Africa..

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2009

S. Kumar, A. Janarthanan, M. M. Shakeel, S. Maroo, John D. Matyjas and M. Medley, Robust H.264/AVC Video Coding with Priority Classification, Adaptive NALU Size and Fragmentation, IEEE MILCOM, Oct. 18-21, 2009, Boston, USA.

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A. Bhatnagar, S. Kumar, A. Janarthanan, A. Annamalai Jr,  M. Medley and John D. Matyjas, Multilevel Unequal Protection Scheme for Robust H.264/AVC Video Transmission over Wireless Channels, IEEE MILCOM, Oct. 18-21, 2009, Boston, USA.
2006

L. Xu and S. Kumar, Error Resiliency Measure for RVLC Codes, IEEE Signal Processing Letters., Vol. 13(2), pp. 84-87, Feb. 2006

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L. Xu and S. Kumar, An Efficient and Low-delay MCTF Partitioning, IEEE International Conf. Image Processing (ICIP 06), Atlanta, GA, Oct. 2006.

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S. Kumar, L. Xu, M. K. Mandal and S. Panchanathan, Error Resiliency Schemes in H.264/AVC Standard, Elsevier J. Visual Communication & Image Representation (Special issue on Emerging H.264/AVC Video Coding Standard), Vol. 17(2), pp. 425-450, April 2006

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S. Kumar, M. K. Mandal and S. Panchanathan, Editorial: Special Issue on Emerging H.264/AVC Video Coding Standard, Elsevier J. Visual Communication & Image Representation, Vol. 17(2), pp. 183-85, April 2006.

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2005

Z. Yan, S. Kumar and C.-C. J. Kuo, Mesh Segmentation Schemes for Error Resilient Coding of 3D Graphic Models, IEEE Trans. Circuits and Systems for Video Technology, Vol. 15(1), pp. 138-144, Jan. 2005.

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L. Xu, M.K. Mandal and S. Kumar, Coding Efficiency Evaluation of RVLC Codes, IEEE Midwest Symp. Circuits and Systems, Cincinnati, OH, Aug. 7-10, 2005.

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S. Kumar, L. Xu and M. K. Mandal, Improving Data Recovery in MPEG-4, IEICE Trans. Information and Systems, Vol. E88-D (6), pp. 1306-1309, June 2005.

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2004

S. Kumar and L. Xu, Improved RVLC-based Data Recovery in MPEG-4 Video, Elsevier J. of Real Time Imaging (Special issue on Low Bit-Rate Multimedia Communication), Vol. 10(6), pp. 315-323, 2004.

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2003

S. Kumar and L. Xu, Improved RVLC-based Data Recovery in MPEG-4 Video, SPIE ITCOM Conf. (Multimedia Systems and Applications IV), Vol. 5241, pp. 88-98, Sept. 2003, Orlando, FL.

M. Gao, P. Bridgman and S. Kumar, Computer Aided Prostate Cancer Diagnosis Using Image Enhancement and JPEG2000, SPIE Int. Conf. Applications of Digital Image Processing, Vol. 5203, pp. 323-334, Aug. 2003, San Diego, CA.

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2002

T.-C. Yang and S. Kumar, An Error Recovery Technique for Wavelet Image Codecs with Inter-Subband Dependency, IEEE Trans. Consumer Electronics, Vol. 48(4), pp. 973-981, Nov. 2002.

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2001

Z. Yan, Sunil Kumar and C.-C. J. Kuo, Error Resilient Coding of 3D Graphic Models via Adaptive Mesh Segmentation and Piecewise Reconstruction Approach, IEEE Trans. Circuits and Systems for Video Technology, Vol. 11(7), pp. 860-873, July 2001.

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S. Kumar and C.-C. Jay Kuo, Improving Error Resilience Performance of JPEG2000 Codec with Unequal Error Protection and  RVLC, Proc. Picture Coding Symposium, S. Korea, April 25-27, 2001.

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2000

Z. Yan, S. Kumar, J. Li  and C.-C. Jay Kuo, An Error Resilient Coding Technique for 3D Graphic Models, SPIE Int. Conf. Image and Video Communications and Processing, San Jose, CA, Jan. 25-28, 2000, Vol. 3974, pp. 360-371.