Past shape decoding for MPEG-4 video

被引:2
作者
Thinakaran, J [1 ]
Ho, DJ [1 ]
Ling, N [1 ]
机构
[1] Nanyang Technol Univ, Sch EEE, Singapore 639798, Singapore
来源
2000 IEEE WORKSHOP ON SIGNAL PROCESSING SYSTEMS: DESIGN AND IMPLEMENTATION | 2000年
关键词
D O I
10.1109/SIPS.2000.886709
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
To achieve fast shape decoding in MPEG-4, it is necessary to have a high speed binary shape decoder. A fast architecture is presented here that is able to decode up to 72.4 Mpixels/s, meeting up to MPEG-4 Main Profile @ Level 3 real time requirement. High performance is achieved by using a lookahead scheme in the probability generation unit and a fast ALU. Simpler shift registers are used in place of large barrel shifters to reduce area. Furthermore, even with the use of low power synchronous ROM it is still possible to decode one bit (shape pixel) every clock cycle. The architecture is synthesized using Avanti's Passport 0,35 mum technology library. The layout of the module is shown and the die area is 2.56mm(2).
引用
收藏
页码:110 / 119
页数:10
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