Efficient architecture of binary motion estimation for MPEG-4 shape coding

Yi-Chu Wang; Hao-Chieh Chang; Wei-Ming Chao; Liang-Gee Chen

doi:10.1117/12.411786

29 December 2000 Efficient architecture of binary motion estimation for MPEG-4 shape coding

Yi-Chu Wang, Hao-Chieh Chang, Wei-Ming Chao, Liang-Gee Chen

Proceedings Volume 4310, Visual Communications and Image Processing 2001; (2000) https://doi.org/10.1117/12.411786
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

This paper presents an efficient architecture of binary motion estimation (BME) for MPEG-4 shape coding. This architecture, called DDBME, mainly consists of a data dispatch based 1-D systolic array and a 16 X 32 bit search range buffer. In DDBME, bit parallelism technique is applied on the SAD calculation of block matching algorithm. In order to support efficiently bit-data parallel processing, bit addressing should be taken into consideration. The data dispatch technique is applied on 1-D array by the hardwired data flow routing such that the bit addressing operations can be efficiently reduced. The DDBME operating at 7.29 MHz can handle the real-time requirement for encoding MPEG-4 shape sequence at core profile level 2, i.e. 2 VOs with CIF format, 30 fps and assuming each frame contains 30% boundary macroblocks in average. For the same real-time specification, the optimized software running on RISC (Ultra Sparc, 300 MHz) can only achieve 1/20 performance.

Citation Download Citation

Yi-Chu Wang, Hao-Chieh Chang, Wei-Ming Chao, and Liang-Gee Chen "Efficient architecture of binary motion estimation for MPEG-4 shape coding", Proc. SPIE 4310, Visual Communications and Image Processing 2001, (29 December 2000); https://doi.org/10.1117/12.411786

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