Adaptive quantization controller

Details Adaptive quantization controller Adaptive quantization controller

1997-08-20

1999-12-07

Le, Vu

Television

Bandwidth reduction system

Data rate reduction

348419, 382251, 375245, 341200, H04N 730, H04N 732

Patent

active

059992182

ABSTRACT:
An adder 101 computes the difference between the activity (act) of an objective block and the average value (avg(act)) of activities all over the previous frame. A shifter 102 shifts the difference by a specified bits (n). Finally, an adder 103 adds output of the shifter 102 to a reference quantizing step (Qj) determined by a code quantity control and outputs the added result as a quantizing step Mquant of the objective block.

REFERENCES:
patent: 4736387 (1988-04-01), Tzou
patent: 5396291 (1995-03-01), Sanpei
patent: 5568514 (1996-10-01), McCree et al.
patent: 5587708 (1996-12-01), Chin
patent: 5663763 (1997-09-01), Yagasaki et al.
patent: 5712874 (1998-01-01), Okamoto
patent: 5724097 (1998-03-01), Hibi et al.
patent: 5745179 (1998-04-01), Senda

Affiliated with

Also associated with

Rating

Adaptive quantization controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-829952