System and method for detecting a change in an object scene
US8295541B2 · kind B2 · utility
4Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2005 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/1961
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Method and apparatus for detecting change of an object state from an initial state where the object is displayed in a plurality of sequential images. The system involves comparing a measure over a predetermined portion of each of the images corresponding to an object's initial state with a reference value of the measure computed when the object is in the initial state to generate a comparison value for each of the images and then generating a signal indicating that the object state has changed when a predetermined number of the comparison values generated for each of the images do not meet a predetermined criterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.