標題: Design of A Memory-Based VLC Decoder for Portable Video Applications
作者: Lee, Wei-Chin
Li, Yao
Lee, Chen-Yi
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2008
摘要: In this paper, a VLC decoder supporting to decode coefficient data in blocks of MPEG-2 and CAVLC in H.264 is presented. To achieve programmability of the VLC decoder, a memory-based architecture with improved memory efficiency is proposed. Group-based look-up table (LUT) algorithm is extended to multi-table merging (MTM) which extracts redundancy of groups further. With multi-table merging algorithm, all coding tables are integrated into memory more efficiently. While the memory access may lead to much power consumption, a low-power scheme is proposed to reduce memory access. The distributed cache is adopted to save power and improve the decoding throughput as well. Simulation results show that the cache with replacement method can reduce about 60% similar to 95% memory accesses.
URI: http://hdl.handle.net/11536/31776
ISBN: 978-1-4244-2341-5
期刊: 2008 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS 2008), VOLS 1-4
起始頁: 1340
結束頁: 1343
Appears in Collections:Conferences Paper