Method and apparatus for describing image
US9208584B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 27, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Jan 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for describing an image are disclosed. The method for describing an image according to an embodiment of the invention includes: transforming an image from a BGR color space into a Gaussian derivative color model; and transforming the image from the Gaussian derivative color model into an optical reflection invariant color space, wherein the process of transforming the image from the Gaussian derivative color model into the optical reflection invariant color space includes: determining, for each pixel on the image, color channels of the pixel corresponding to the optical reflection invariant color space according to a first coefficient and a second coefficient of the pixel in the Gaussian derivative color model. The embodiments of the invention can alleviate an error in a description of an image of the same contents but with a significant change in color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.