Digital imaging with masked pixels
US9774804B2 · kind B2 · utility
0Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Dec 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one application, an imaging device includes an image sensor having an array of pixels, and a mask coupled with the image sensor. The mask is configured to darken a plurality of isolated pixels or groups of pixels interspersed within the array of pixels. The imaging device also includes a processor coupled with the image sensor and configured to receive image data from the image sensor, and determine a dark current fixed pattern noise based on the image data received from the plurality of darkened pixels or groups of pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.