https://scholars.lib.ntu.edu.tw/handle/123456789/313903
標題: | Multi-mode embedded compression codec engine for power-aware video coding system | 作者: | Cheng, C.-C. Tseng, P.-C. Huang, C.-T. LIANG-GEE CHEN |
公開日期: | 2005 | 卷: | 2005 | 起(迄)頁: | 532-537 | 來源出版物: | IEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation | 會議論文: | SiPS 2005: IEEE Workshop on Signal Processing Systems - Design and Implementation | 摘要: | In a typical multi-chip handheld system for multimedia applications, external access, which is usually dominated by block-based video content, induces more than half of total system power. Embedded compression (EC) effectively reduces external access caused by video content by reducing the data size. In this paper, an algorithm and a hardware architecture of a new type EC codec engine with multiple modes are presented. Lossless mode, and lossy modes with rate control modes and quality control modes are all supported by single algorithm. The proposed four-tree pipelining scheme can reduce 83% latency and 67% buffer size between transform and entropy coding. The proposed EC codec engine can save 50%, 61%, and 77% external access at lossless mode, half-size mode, and quarter-size mode and can be used in various system power conditions. With Artisan 0.18 μm cell library, the proposed EC codec engine can encode or decode at VGA@30fps with area and power consumption of 293,605 μm 2 and 3.36 mW. © 2005 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-33846987504&doi=10.1109%2fSIPS.2005.1579925&partnerID=40&md5=03ea475d37bdf2f0d0711af1c2c42ab2 http://scholars.lib.ntu.edu.tw/handle/123456789/313903 |
ISSN: | 15206130 | DOI: | 10.1109/SIPS.2005.1579925 | SDG/關鍵字: | Algorithms; Data compression; Embedded systems; Hand held computers; Multimedia systems; Search engines; Codec engines; Embedded compression; Entropy coding; Hardware architecture; Image coding |
顯示於: | 電機工程學系 |
檔案 | 描述 | 大小 | 格式 | |
---|---|---|---|---|
01579925.pdf | 323.13 kB | Adobe PDF | 檢視/開啟 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。