Object segmentation with background extraction and moving boundary techniques
US6731799B1 · kind B1 · utility
427Cited by
12References
35Claims
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Key dates
| Filing date | Jun 1, 2000 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Feb 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Image data for an image frame are allocated among three groups. In one group are image data which are part of a derived motion boundary, along with image data which differ by at least a threshold amount from a corresponding point among normalized background data. In another group are image data which closely correspond to the normalized background image data. A third group includes the remaining pixels. An initial estimate for the object boundary is adjusted iteratively based on the groupings, followed by application of an active contour model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.