Title :
Chip set for high performance lossless image compression and entropy coding
Author :
Venbrux, J. ; Liu, Muye
Author_Institution :
NASA Space Eng. Res. Center, Idaho Univ., Moscow, ID, USA
Abstract :
The first Rice algorithm chip set is described. It operates under laboratory conditions at 25 Msamples/sec independent of entropy or quantization (4-14 b/pixel). The algorithm is lossless and adapts to changing entropy conditions, making it suitable for images. The algorithm requires no external RAM and compression performance exceeds that of differential pulse code modulation (DPCM) with UNIX compress. The encoder can operate at twice the decoding rate. In the laboratory, most encoder parts were fully functional at 60 Msamples/sec, or 840 Mbits/sec at N=14. The chips have been fabricated in a 1.0-μm CMOS process and are 5 mm on a side
Keywords :
CMOS integrated circuits; data compression; image coding; vector quantisation; 1.0 micron; 840 Mbits/s; CMOS process; Rice algorithm chip set; compression performance; decoding rate; entropy coding; lossless image compression; quantization; CMOS process; Decoding; Entropy; Image coding; Laboratories; Modulation coding; Performance loss; Pulse compression methods; Pulse modulation; Quantization;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226503
