DocumentCode
3474667
Title
A bandwidth and memory efficient MPEG-4 shape encoder
Author
Lee, Kun-Bin ; Chang, Nelson Yen-Chung ; Chin, Hao-Yun ; Hsu, Hui-Cheng ; Jen, Chein-Wei
Author_Institution
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear
2004
fDate
27-30 Jan. 2004
Firstpage
525
Lastpage
526
Abstract
We have developed a shape encoder hardware for MPEG-4 video coding. On the one hand, the alpha component is compressed and therefore, the size and memory access of alpha frame memory can be reduced to 50% and 56.25% respectively. On the other hand, an efficient data transfer scheme combining the run length coding and addressing mode can reduce average data transfer time to 9.39% and accelerate the shape encoding process. The shape encoder can support MPEG-4 main profile at Level 4 in real-time. In addition, verification and testing methods are also considered.
Keywords
bandwidth compression; encoding; runlength codes; video coding; MPEG-4 main profile; MPEG-4 shape encoder hardware; MPEG-4 video coding; alpha frame memory; bandwidth efficient; data transfer scheme; memory efficient; run length coding; Acceleration; Bandwidth; Encoding; Hardware; Layout; MPEG 4 Standard; Shape; Testing; Transform coding; Video coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Design Automation Conference, 2004. Proceedings of the ASP-DAC 2004. Asia and South Pacific
Print_ISBN
0-7803-8175-0
Type
conf
DOI
10.1109/ASPDAC.2004.1337631
Filename
1337631
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