Design of AVS Encoder Architecture Supporting Multiple Video Coding Standards
Date Issued
2007
Date
2007
Author(s)
Lin, Yi-Lun
DOI
en-US
Abstract
In this thesis, a practical solution for enabling an existing MPEG-4 ASP encoder to support AVS Part-2 is proposed. MPEG-4 is a video coding standard that defines many profiles to targets on streaming video, CD distribution, video conversation, and broadcast television. Among those profiles, MPEG-4 ASP is the most commonly employed one in industry. On the other side, the second generation video coding standard recently developed in China is AVS Part-2, which provides similar coding efficiency to H.264/AVC with lower computation complexity. Therefore, AVS Part-2 seems a better choice when implementing a multi-standard video coding system based on MPEG-4.
Before designing architectures, comparisons of coding tools between the two standards are listed in order to find out the hardware components that needs re-design. Besides, sub-pel ME, variable-block-size motion compensation, and intra prediction, are analyzed to evaluate their coding efficiency. According to the comparison and analyses, transform coding, intra prediction, and entropy coding are the three most important coding tools which has the highest priority when implementing the multi-standard system.
Subjects
數字音視頻編解碼技術標準
編碼器
視訊
壓縮
多重標準
AVS
encoder
codec
hardware
video
mpeg
264
AVC
muliple standard
Type
thesis
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