Noise reducing device, electronic camera, and image processing program for reducing image noise by using blackout image
US7804532B2 · kind B2 · utility
4Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2006 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Sep 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/671
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A noise reducing device captures image data obtained by capturing a field with an image capturing part and a plurality of blackout image data obtained by capturing the field with the image capturing part under a light shielded state. This device reduces non-correlative random noise in the plural blackout image data. With random noise reduced, fixed pattern noise appears more accurately in resultant as blackout image data B. This device reduces the fixed pattern noise in the image data by using this blackout image data B.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.