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Project: Rate Control for Video Coding and Communication
PEOPLE
OBJECTIVE
Rate-distortion (R-D) analysis and rate control play a key role in video coding and communication systems by providing the R-D optimized compression performance, assuring the successful network transmission of the coded
video data, and achieving the best visual quality at the receiver. In conventional R-D analysis, the bit rate R and distortion D are considered as functions of the quantization parameter q. Thus, source models are developed in the q-domain. These source models either have very high computational complexity or suffer
from relatively large estimation and control error. We are investigating a new
framework for R-D analysis, called þ-domain analysis, where R and D functions are functions of a parameter denoted as þ.
PUBLICATIONS
These materials are presented to ensure timely dissemination of scholarly and
technical work. Copyright and all rights therein are retained by authors or by
other copyright holders. All persons copying this information are expected to
adhere to the terms and constraints invoked by each authors copyright. In most
cases, these works may not be reposted without the explicit permission of the
copyright holder.
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Zhihai He, Yong Kwan Kim, and Sanjit K. Mitra, "þ-domain source modeling and rate control for video encoding and transmission ," accepted by ICASSP 2001, May 2001.
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