METHOD AND APPARATUS FOR COMPRESSION OF DIGITIZED IMAGE DATA USING A DYNAMIC BAND RECOMPRESSION SCHEME
Patent №
US 5,768,481
Granted
1998-06-16
Filed 1995
Owner
APPLE COMPUTER, INC.
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08463783
The present invention is directed to systems and methods for encoding (for example, compressing) image data while at the same time, improving both the compression ratio and the perceptibility of the decoded (for example, decompressed) image using a dynamic band recompression scheme. In accordance with exemplary embodiments, portions of a compressed image are decompressed upon occurrence of a predetermined condition prior to compression of an entire frame of image data, and then recompressed with subsequent portions of the original image. Exemplary embodiments achieve enhanced fidelity in a decompressed image even when the image data is compressed without segregation into its scanned and non-scanned components.
AI classification
Ownership
APPLE COMPUTER, INC.
assignment · 75170541
Assignors
CHAN, ALLEN M., CHEN, KOK S.
On an employer assignment, the assignors are typically the inventors.