Statistical rate-distortion estimation for H.264/AVC coders

Yu Kuang Tu, Jar Ferr Yang, Ming Ting Sun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)


Based on statistical analyses of transform coefficients, we suggest estimations of bit-rate and distortion functions directly from spatial-domain statistics. Simulations show that the proposed rate and distortion estimators achieve similar results as the true Rate-Quantization (R-Q) and Distortion-Quantization (D-Q) curves. By exploiting the proposed statistical estimations, two major applications are suggested. One is the fast Rate-Distortion Optimized (RDO) mode decision and the other is the improved Rate Control (RC) in video encoding. Simulation results show that the rate-distortion estimators have sufficient accuracy such that we could achieve considerably better performance in both applications. We achieved 51.69% R-D cost computation time reduction in average for the rate-distortion optimized mode decision, and a 0.20 dB average Peak Signal-to-Noise Ratio (PSNR) improvement for rate-control in H.264/AVC, respectively.

Original languageEnglish
Title of host publicationISCAS 2006
Subtitle of host publication2006 IEEE International Symposium on Circuits and Systems, Proceedings
Number of pages4
Publication statusPublished - 2006
EventISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece
Duration: 2006 May 212006 May 24

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310


OtherISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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