System and method for controlling image compression based on image emphasis
US6832006B2 · kind B2 · utility
34Cited by
13References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2001 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jan 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method to automatically vary the compression of images by ranking images within clusters based upon image emphasis. The ranking process computes one or more quantities related to one or more features in each image. The features can include the content of images. The invention processes the quantities with a reasoning algorithm that is trained based on opinions of one or more human observers. The invention applies the quantities to the images to produce the ranking and variably compresses the images depending upon the ranking. The images having a low ranking and are compressed more than images that have a high ranking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.