Method and system of eliminating color noises caused by an interpolation
US7609300B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2006 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Aug 8, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2209/046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system of eliminating color noises caused by an interpolation, which performs an interpolation on a Bayer image obtained by an image sensor to restore red, green and blue colors of each pixel. Interpolated image is converted into a chromatic domain in order to rapidly use chroma pixel values of a pixel previously processed to eliminate color noises to update the original chroma pixel values in a median filter with 3×3 area of 2D, thereby increasing the color noise filtering capability of the median filter, and a low-pass filter is used to further eliminate the uneven effect of clustered color noises filtered out by the median filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.