Bit rate reduction apparatus

Details Bit rate reduction apparatus Bit rate reduction apparatus

1995-06-07

1996-12-17

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

348419, H04N 732

Patent

active

055858538

ABSTRACT:
When quantizing the components transformed in each block, the transformed components in the block are classified into plural sets, and the quantizing width is determined in each classification, and when quantizing with a large quantizing width, the quantizing width of the transformed component belonging to the set of the transformed components less important visually is set larger.

REFERENCES:
patent: 4780761 (1988-10-01), Daly et al.
patent: 4908862 (1990-03-01), Kaneko
patent: 5079631 (1992-01-01), Lhuillier
patent: 5150208 (1992-09-01), Otaka et al.
patent: 5225904 (1993-07-01), Golin et al.
patent: 5237410 (1993-08-01), Inoue
patent: 5241401 (1993-08-01), Fujiwara et al.
patent: 5307163 (1994-04-01), Hatano et al.
patent: 5321440 (1994-06-01), Yanagihara et al.
patent: 5355167 (1994-10-01), Juri
Patent Abstracts of Japan, vol. 13, No. 570 (P-977) 18 Dec. 1989 & JP-A-01 237 774 (Konica Corp) 22 Sep. 1989.
"Motion Video Adaptive Quantization in the Transform Domain", C. A. Gonzales, E. Viscito, IEEE, 1991.

Affiliated with

Also associated with

Rating

Bit rate reduction apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bit rate reduction apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bit rate reduction apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1995117