Method for compensating image data
US8189076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2009 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Oct 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/625
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for compensating image data is adapted for an image sensor. The image sensor has a plurality of photo sensors arranged in an effective region and an optical black region. The method for compensating image data includes a plurality of monochromatic light representative values Si corresponding to pixel positions i is extracted from the photo sensors of the optical black region; a plurality of monochromatic image intensity values VO is extracted from the photo sensors of the effective region; the monochromatic light representative values Si are converted respectively to a plurality of monochromatic compensation values f(Si); and compensated image data VF is output after compensating the monochromatic image intensity values VO respectively based on the pixel positions i and the corresponding monochromatic compensation values f(Si). Through the method for compensating image data, a smear effect in the effective region can be compensated effectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.