New Context-Adaptive Arithmetic Coding Scheme for Lossless Bit Rate Reduction of Parametric Stereo in Enhanced aacPlus

作     者：Pang, Hee-Suk Lim, Jun-seok Jin, Hyun-Young 

作者机构：Sejong Univ Dept Elect Engn Seoul 05006 South Korea Seoul Natl Univ Dept Civil & Environm Engn Seoul 08826 South Korea 

出 版 物：《IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS》 (电子信息通信学会汇刊：信息与系统)

年 卷 期：2018年第E101D卷第12期

页      面：3258-3262页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：context-adaptive arithmetic coding lossless bit rate reduction parametric stereo coding efficiency 

摘      要：We propose a new context-adaptive arithmetic coding (CAAC) scheme for lossless bit rate reduction of parametric stereo (PS) in enhanced aacPlus. Based on the probability analysis of stereo parameters indexes in PS, we propose a stereo band-dependent CAAC scheme for PS. We also propose a new coding structure of the scheme which is simple but effective. The proposed scheme has normal and memory-reduced versions, which are superior to the original and conventional schemes and guarantees significant bit rate reduction of PS. The proposed scheme can be an alternative to the original PS coding scheme at low bit rate, where coding efficiency is very important.