Title :
A low-complexity frame memory compression algorithm and its implementation for MPEG-2 video decoder
Author :
Lee, Tae Young ; Kim, Yong Sik ; Jang, Sungjae ; Yoo, Hoon ; Jeong, Jechang
Author_Institution :
Syst. IC Div., Hyundai Electron. Ind. Co. Ltd., Seoul, South Korea
Abstract :
An algorithm and its implementation to compress video frame data to be stored in external memory are proposed, thereby enabling a reduction of memory requirements and bandwidth. To support random access capability, frames are organized as 1×8 fixed-length segments, which are used as compression units. For both compression efficiency and low complexity, modified Hadamard transform (MHT) and Golomb-Rice (GR) coding are utilized. The compression ratio is fixed at 50% and objective and subjective video quality assessments are performed. Efficient ASIC implementation including Golomb-Rice encoding/decoding is also proposed to reduce the total compression/decompression latency time
Keywords :
CMOS digital integrated circuits; Hadamard transforms; application specific integrated circuits; code standards; data compression; decoding; digital signal processing chips; telecommunication standards; video coding; 0.25 micron; 54 MHz; ASIC implementation; Golomb-Rice coding; Golomb-Rice encoding/decoding; MPEG-2 video decoder; compression/decompression latency time reduction; low-complexity frame memory compression algorithm; modified Hadamard transform; random access capability; video frame data compression; video quality assessments; Application specific integrated circuits; Bandwidth; Compression algorithms; Decoding; Delay; Encoding; Error correction; Error correction codes; Quality assessment; Video compression;
Conference_Titel :
ASICs, 2000. AP-ASIC 2000. Proceedings of the Second IEEE Asia Pacific Conference on
Conference_Location :
Cheju
Print_ISBN :
0-7803-6470-8
DOI :
10.1109/APASIC.2000.896919
