Color naming, color categorization and describing color composition of images
US7415153B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Oct 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/465
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides methods, systems and apparatus for assigning color names to individual image pixels, and generating verbal description of color composition in images, suitable for a wide variety of information processing applications. For an isolated image pixel (individual color sample or color value) an illustrative embodiment of this invention uses a predetermined vocabulary of color names, and then generates a distance measure describing the best color match and corresponding color name for the given pixel. For the input image, an illustrative embodiment of this invention computes the simplified representation of the scene, consistent with human perception, and uses the predetermined vocabulary, syntax rules and metric to assign color names to all perceptually significant objects and regions and obtain the verbal description of the overall color composition. The invention is also applicable to other types of information signals, such as sequences of video frames, web pages, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.