Image sensing apparatus and defective pixel detection method
US8810695B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2009 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Oct 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/68
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes an image sensor, a detection unit, and a control unit. The image sensor photoelectrically converts an incident light from an object. The detection unit detects a defective pixel of the image sensor based on an image signal generated by the image sensor. The control unit controls, when a first defective pixel for irregularly outputting an abnormal level and a second defective pixel for regularly outputting an abnormal level in the image sensor are detected, storage time of the image sensor at the detection time of the first defective pixel to be longer than storage time of the image sensor at detection time of the second defective pixel and a number of image signals used for detection to be larger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.