Method and apparatus to distinguish deposit and removal in surveillance video
US6731805B2 · kind B2 · utility
22Cited by
15References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method that detects and identifies an event from a sequence of images received. The system comprises a control unit that receives and processes the sequence of images from the camera. The control unit identifies at least one stationary image prior to the event and one stationary image subsequent to the event. The control unit compares one or more representations corresponding to one or more edges in the first stationary image with one or more representations corresponding to one or more edges in the second stationary image to determine whether an object has been deposited or removed during the event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.