Efficient system and method for face tracking
US8675099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of scanning a scene using an image sensor includes (a) dividing the scene into multiple first portions; and scanning a first portion for presence of objects in an object class. The method further includes continuing the scanning of the multiple first portions for presence of other objects in the scene. The method also selects a second portion of the scene, in response to detecting an object in the first portion; and then tracking the object in the selected second portion. The second portion of the scene is selected based on estimating motion of the object detected in the first portion, so that it may still be located in the second portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.