Patent №
US 6,792,153
Granted
2004-09-14
Filed 2000
Owner
CANON KABUSHIKI KAISHA
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
09708482
Compressed image data is input, and it is checked according to the attributes of that image if the compression ratio of the compressed image is to be changed by a compression ratio determination unit. A compression ratio change unit changes the compression ratio of the compressed image to increase by deleting a high-frequency subband or lower bit plane of the compressed image data. Upon changing the compression ratio, codes of a non-region-of-interest of that image data are deleted, and if a desired compression ratio cannot be obtained by only such deletion, codes of a region of interest of that data are deleted to change the compression ratio.
AI classification
Ownership
CANON KABUSHIKI KAISHA
assignment · 115940954
Assignors
TSUJII, OSAMU
On an employer assignment, the assignors are typically the inventors.