Head recognition from depth image
US9081999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2010 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jun 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/162
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described herein is a method for recognizing a human head in a source image. The method comprises detecting a contour of at least part of a human body in the source image, calculating a depth of the human body in the source image. From the source image, a major radius size and a minor radius size of an ellipse corresponding to a human head at the depth is calculated, and, for at least several of a set of pixels of the detected contour, generating in an accumulator array at least one segment of an ellipse centered on the position of the contour pixel and having the major and minor radius sizes. Positions of local intensity maxima in the accumulator array are selected as corresponding to positions of the human head candidates in the source image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.