Optimized lossless data compression methods

Details Optimized lossless data compression methods Optimized lossless data compression methods

2006-01-30

2008-08-12

Do, Anh Hong (Department: 2624)

Image analysis

Image compression or coding

Lossless compression

C382S232000, C382S233000, C382S248000

Reexamination Certificate

active

07412104

ABSTRACT:
A method for losslessly encoding and compressing and decoding original, raw, raster data, and other files by optimizing the results of preprocessing and transformation techniques. Four stages are involved: pre-processing during which the data is replaced by predictive values and the deviations from the predictive value; mapping each block through a transform sequence using a lossy reversible mapping; minimizing the joint entropy of the transformed data and deviation data by varying parameters for the predictive and transform step; and encoding the transformed sequence. At each stage of the compression of the data, different techniques are tried and compared and an optimal technique used to carry out that state.

REFERENCES:
patent: 5825369 (1998-10-01), Rossignac et al.
patent: 6222884 (2001-04-01), Mitchell et al.
patent: 2003/0028387 (2003-02-01), Kilbank et al.
patent: 2003/0093451 (2003-05-01), Chuang et al.
patent: 2004/0207548 (2004-10-01), Kilbank et al.
patent: 2004/0208240 (2004-10-01), Kilbank et al.
patent: 2004/0208315 (2004-10-01), Kilbank et al.

Affiliated with

Also associated with

Rating

Optimized lossless data compression methods does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimized lossless data compression methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimized lossless data compression methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4012057