Method of dealing with occlusion when tracking multiple objects and people in video sequences
US6542621B1 · kind B1 · utility
75Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1999 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention employs probabilistic templates, or p-templates, which probabilistically encode the rough position and extent of the tracked object's image. The p-templates track objects in the scene, one p-template per object. They can be used to incorporate three-dimensional knowledge about the scene, and to reason about occlusion between the objects tracked by the p-templates. This invention requires video capture and digitization hardware, image processing hardware such as a digital signal processor, and a method for estimating the image size of a person standing at a given location in the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.