METHOD, APPARATUS AND SYSTEM FOR COMPRESSING STILL IMAGES IN MULTIPURPOSE COMPRESSION SYSTEMS
Patent №
US 7,239,754
Granted
2007-07-03
Filed 2003
Owner
INSTITUTE OF SUPER COMPRESSION TECHNOLOGIES
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10620873
The present invention teaches a method of compressing still images in a multi-purpose compression system. The current invention teaches preprocessing of the images to a YUV 4:2:0 format and decomposing the images using two-dimensional Discrete Wavelet Transformation. The current invention teaches that filters may be selected based on image dimensions. After the image is decomposed, the frequency coefficients are quantized and the data is entropy encoded. The image is restored by reversing the compression process.
AI classification
Ownership
INSTITUTE OF SUPER COMPRESSION TECHNOLOGIES
assignment · 143240675
Assignors
AKIMOTO, HIOSHI, MATULYAK, IGOR V., MOROZ, VOLODYMYR V.
On an employer assignment, the assignors are typically the inventors.