Professor wins top 10 percent paper award at prestigious conference

Dr. Zixiang Xiong,a professor in the Department of Electrical and Computer Engineering at Texas A&M University, won a top ten percent paper award at the Institute of Electrical and Electronics Engineers (IEEE) Multimedia Signal Processing (MMSP) Workshop.Photo of Dr. Zixiang Xiong

Xiong, Ph.D. student Yifu Zhang and post-doc Yang Yang won the award for their paper. "Depth Camera Assisted Multiterminal Video Coding."

Their paper addresses multiterminal video coding with the help of a low-resolution depth camera. In this setup, the depth sequence --  together with the high-resolution texture sequences -- are collected, compressed and transmitted separately to the joint decoder in order to obtain more accurate depth information and consequently better rate-distortion performance.

At the decoder end, side information (for Wyner-Ziv coding) is generated based on successive refinement of the decompressed low-resolution depth map and texture frame warped from other terminals. Experimental results show sum-rate savings with the depth camera than without for the same PSNR performance. Comparisons to simulcast and JMVM coding are also provided and their work is the first that incorporates depth camera in a multiterminal setting.

Xiong joined the Texas A&M Engineering faculty in 1999. His research interests include network information theory, code designs and applications, networked multimedia, and biomedical engineering. Xiong is an IEEE Fellow. Other honors include receiving the TEES Fellow Award and the TEES Select Young Faculty Award; the Young Investigator Awards from the Office of Naval Research and the U.S. Army Research Office; and the CAREER Award from the National Science Foundation. He received his doctoral degree from the University of Illinois at Urbana-Champaign in 1996.

MMSP 2011 is the 13th international workshop on multimedia signal processing. The workshop is organized by the Multimedia Signal Processing Technical Committee of the IEEE Signal Processing Society. The workshop brings together researchers and developers in both multimedia signal processing and client-cloud computing to share their latest achievements and explore future directions and synergies in these exciting areas.