Movatterモバイル変換

Special Section on Image Media Quality

An Improved Method to CABAC in the H.264/AVC Video Compression Standard

LeThanh HA, Chun-Su PARK, Seung-Won JUNG, Sung-Jea KO

Author information

LeThanh HA
Department of Electronic Engineering, Korea University
Chun-Su PARK
Department of Electronic Engineering, Korea University
Seung-Won JUNG
Department of Electronic Engineering, Korea University
Sung-Jea KO
Department of Electronic Engineering, Korea University

Corresponding author

Keywords:H264/AVC,entropy coding,arithmetic codes,CABAC,linear regression

JOURNALRESTRICTED ACCESS

2009 Volume E92.AIssue 12Pages 3355-3360

DOIhttps://doi.org/10.1587/transfun.E92.A.3355

Details

Published: December 01, 2009Received: April 16, 2009Available on J-STAGE: December 01, 2009Accepted: -Advance online publication: -Revised: -

Download PDF(279K)

Download citationRIS

(compatible with EndNote, Reference Manager, ProCite, RefWorks)

BIB TEX

(compatible with BibDesk, LaTeX)

Text

How to download citation

Article overview

Abstract

Context-based Adaptive Binary Arithmetic Coding (CA-BAC) is adopted as an entropy coding tool for main profile of the video coding standard H.264/AVC. CABAC achieves higher degree of redundancy reduction by estimating the conditional probability of each binary symbol which is the input to the arithmetic coder. This paper presents an entropy coding method based on CABAC. In the proposed method, the binary symbol is coded using more precisely estimated conditional probability, thereby leading to performance improvement. We apply our method to the standard and evaluate its performance for different video sources and various quantization parameters (QP). Experiment results show that our method outperforms the original CABAC in term of coding efficiency, and the average bit-rate savings are up to 1.2%.

References (14)

Movatterモバイル変換

Corresponding author

Register with J-STAGE for free!