Three-dimensional background removal for vision system
US8526734B2 · kind B2 · utility
4Cited by
192References
20Claims
0Family size
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Key dates
| Filing date | Jun 1, 2011 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30196
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for controlling a computer system includes acquiring video of a subject, and obtaining from the video a time-resolved sequence of depth maps. A geometric model of the subject is fit to each depth map in the sequence and tracked into a subsequent depth map in the sequence. From the subsequent depth map, a background section is selected for exclusion. The background section is one that lacks coherent motion and is located more than a threshold distance from the coordinates of the geometric model tracked in. Then, a subsequent geometric model of the subject is fit to the depth map with the background section excluded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.