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Asia and South Pacific Design Automation Conference (2004)
Pacifico Yokohama, Yokohama, Japan
Jan. 27, 2004 to Jan. 30, 2004
ISBN: 0-7803-8175-0
pp: 525-526
Kun-Bin Lee , National Chiao Tung University, HsinChu, Taiwan
Nelson Yen-Chung Chang , National Chiao Tung University, HsinChu, Taiwan
Hao-Yun Chin , National Chiao Tung University, HsinChu, Taiwan
Hui-Cheng Hsu , National Chiao Tung University, HsinChu, Taiwan
Chein-Wei Jen , National Chiao Tung University, HsinChu, Taiwan
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.
INDEX TERMS
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CITATION

K. Lee, H. Chin, H. Hsu, N. Y. Chang and C. Jen, "A Bandwidth and Memory Efficient MPEG-4 Shape Encoder," Asia and South Pacific Design Automation Conference(ASP-DAC), Pacifico Yokohama, Yokohama, Japan, 2004, pp. 525-526.
doi:10.1109/ASPDAC.2004.5
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