Signal processing method for image capturing apparatus, and image capturing apparatus including calculating image transfer efficiency
US7643072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Nov 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/713
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an image capturing apparatus which enables a desired image quality to be maintained regardless of transfer efficiency of a CCD image capturing element. R, G and B signals (CCD-RAW data) are acquired from the CCD image capturing element. In addition, various information, namely transfer efficiency of the CCD image capturing element, camera sensitivity upon photography, drive frequency of the CCD image capturing element, WB gains of the acquired R, G and B signals, pixel count, internal temperature of camera or temperature of the CCD image capturing element, and CCD color filter array of the CCD image capturing element are acquired. Signal processing on the acquired R, G and B signals is changed according to the acquired information in order to suppress image quality deterioration due to transfer efficiency degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.