Image processing device using difference camera
US9727973B2 · kind B2 · utility
1Cited by
1References
17Claims
0Family size
Inventor
Key dates
| Filing date | Oct 19, 2013 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Feb 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fast and stable image processing system detecting a mark from a differential image is described. The system includes a display displaying a first image and a second image alternately. A camera captures the first image that contains a mark and the second image. An image processing device detects the mark from a non-zero pixel region of a difference image between the first image that is captured and the second image that is captured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.