Method of fixed pattern noise-reduction and system thereof
US7307659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | May 11, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/671
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An array of photosensitive sensors each has a storage element to store a pixel value. A repeating fixed pattern noise correction module may be coupled to the photosensitive sensors to correct a repeating fixed noise pattern associated with the stored pixel values. In addition, a non-repeating fixed pattern noise hardware correction module may be coupled to the image sensor to correct a non-repeating fixed pattern noise associated with the pixel values stored in the plurality of elements. In a specific embodiment, one or both of the repeating fixed pattern noise correction module and the non-repeating fixed pattern noise hardware correction module are integrated onto a common substrate with the photosensitive sensors, and can comprise tables to identify specific fixed pattern noise locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.