Correction of defective pixels in a detector
US7068854B1 · kind B1 · utility
7Cited by
10References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1999 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Dec 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A detector imaging system having an apparatus and method for correcting defective pixels in an acquired image is disclosed herein. The system includes a correction scheme including temporarily replacing a defective pixel with a linear interpolation of the defective pixel's surrounding neighboring pixel values, determining a local gradient based in part on the acquired image and a gradient kernel, and providing a correction value based on the local gradient to correct the defective pixel. The correction scheme is repeated a plurality of times as desired to correct all the defective pixels in the acquired image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.