Method to detect camera blemishes
US12260534B2 · kind B2 · utility
0Cited by
34References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2022 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Mar 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20224
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of detecting a blemish in a digital camera includes capturing a digital image of a white area by the digital camera; reducing resolution of the digital image by grouping pixels of the digital data into a matrix of a plurality of data blocks; and comparing a luminance value of each of the plurality of data blocks to an average luminance value of other data blocks of the plurality of data blocks within a predetermined region to determine if each of the plurality of data blocks is a potentially bad data block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.