Elimination of visible quantizing artifacts in a digital image u

Details Elimination of visible quantizing artifacts in a digital image u Elimination of visible quantizing artifacts in a digital image u

1996-06-11

1998-09-15

Rogers, Scott

Image analysis

Image compression or coding

Quantization

382275, 358445, 358463, G06K 938, H04N 140, H04N 1409

Patent

active

058091785

ABSTRACT:
A method and system eliminates visible quantizing artifacts in a digital image. The present invention eliminates visible artifacts by determining a function descriptive of a noise model for an input source of image data, utilizing a critical noise/quantizing factor in conjunction with the noise model function to determine a quantization function, and deriving optimum coding for the image data from the quantization function to produce digital image data lacking visible quantization artifacts. The critical noise/quantizing factor is a constant value found to be a value of 3/8. The present invention further includes deriving inverse coding for the optimum coding to allow processing of the digital image.

REFERENCES:
patent: 4774574 (1988-09-01), Daly et al.
patent: 5654760 (1997-08-01), Ohtsuki

Affiliated with

Also associated with

Rating

Elimination of visible quantizing artifacts in a digital image u does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elimination of visible quantizing artifacts in a digital image u, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elimination of visible quantizing artifacts in a digital image u will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-97492