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.

VisionH04N 1/648H04N 19/186H04N 19/42H04N 19/423H04N 19/61H04N 19/63H04N 11/042

AI classification

Vision0.98
Planning0.01
AI hardware0.00
Natural language0.00
Machine learning0.00
Speech0.00
Knowledge representation0.00
Evolutionary computation0.00

Ownership

APPLE COMPUTER, INC.

assignment · 75170541

Assignors

CHAN, ALLEN M., CHEN, KOK S.

On an employer assignment, the assignors are typically the inventors.

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