Method and apparatus for determining relative movement in an optical mouse using feature extraction
US6859199B2 · kind B2 · utility
9Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Apr 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0317
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of determining a movement vector between two images is disclosed. The method comprises capturing a first image using a sensor array. Next, a first feature set is extracted from the first image. A second image subsequent in time from the first image is captured. Similarly, a second feature set is extracted from the second image. The first feature set is compared to the second feature set to determine a shift in position of the second image relative to the first image. Finally, the movement vector is output based upon the shift in position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.