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

fYear

2000

fDate

2000

Firstpage

103

Lastpage

106

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APASIC.2000.896919

Filename

896919