Noise reduction in an image capturing device
US7167267B2 · kind B2 · utility
2Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2001 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Oct 28, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/633
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image capturing device includes an electronic image sensor and a memory including a dark frame buffer that stores one or more dark frames generated by the electronic image sensor. A processor controls the electronic image sensor to substantially continuously capture and store a newest dark frame from the electronic image sensor when the electronic image sensor is not performing an image capture. The processor subtracts the newest dark frame from an image upon an image capture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.