Accurate, Non-integer Bit Estimation for H.265/HEVC and H.264/AVC Rate-Distortion Optimization

DOI

10.2991/csic-15.2015.72How to use a DOI?

Keywords

Non-integer/Fractional bit estimation, CABAC, Accurate rate-distortion optimization

Abstract

Lagrangian Rate Distortion Optimization (RDO) is widely employed in modern video encoders such as H.264/AVC and H.264/AVC for mode decision. During the RDO process the distortion and bit rate of each mode has to be estimated and more an accurate estimation leads to better optimized decisions. This paper explores accurate, non-integer bit estimation and its impact on better RDO. Simulations show 0.2% to 13.0% bit rate saving for H.265/HEVC and 0.2% to 8.0% for H.264/AVC.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Kei Im Sio
AU  - Mahdi Ghandi Mohammad
AU  - Hou Chan Ka
PY  - 2015/07
DA  - 2015/07
TI  - Accurate, Non-integer Bit Estimation for H.265/HEVC and H.264/AVC Rate-Distortion Optimization
BT  - Proceedings of the 2015 International Conference on Computer Science and Intelligent Communication
PB  - Atlantis Press
SP  - 299
EP  - 302
SN  - 2352-538X
UR  - https://doi.org/10.2991/csic-15.2015.72
DO  - 10.2991/csic-15.2015.72
ID  - Sio2015/07
ER  -