Title :
A fast variable-length decoder with optimized lookup tables on FPGA [MPEG applications]
Author :
Guanghua, Chen ; Shiwei, Ma ; Min, Li ; Jialin, Cao ; Shao Yong
Author_Institution :
Sch. of Mech. & Electron. Eng. & Autom., Shanghai Univ., China
Abstract :
A novel high performance variable-length code (VLC) decoder for MPEG applications is proposed. It has higher throughput and requires smaller memory resources by group matching and lookup table optimization. Group matching is developed to simplify matching procedure and reduce the process time. Group recombination, group decomposition and group properties are applied to optimize the lookup tables, which removes the redundant bits and reduces the implementation complexity. This decoder is implemented on FPGA and the throughput is about 55 Msymbols/s at 55 MHz clock rate.
Keywords :
field programmable gate arrays; table lookup; variable length codes; video coding; 55 MHz; FPGA; MPEG; VLC; group decomposition; group matching; group properties; group recombination; lookup table optimization; redundant bit removal; throughput; variable-length decoder; Automation; Clocks; Data compression; Decoding; Detectors; Field programmable gate arrays; Table lookup; Throughput; Transform coding; Video compression;
Conference_Titel :
Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on
Print_ISBN :
0-7803-8511-X
DOI :
10.1109/ICSICT.2004.1435147
