Method of motion detection and autonomous motion tracking using dynamic sensitivity masks in a pan-tilt camera
US8041077B2 · kind B2 · utility
22Cited by
7References
16Claims
0Family size
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Key dates
| Filing date | Dec 18, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Aug 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of identifying motion within a field of view includes capturing at least two sequential images within the field of view. Each of the images includes a respective array of pixel values. An array of difference values between corresponding ones of the pixel values in the sequential images is calculated. A sensitivity region map corresponding to the field of view is provided. The sensitivity region map includes a plurality of regions having different threshold values. A presence of motion is determined by comparing the difference values to corresponding ones of the threshold values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.