Apparatus and method for detecting object using PTZ camera
US9418320B2 · kind B2 · utility
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Key dates
| Filing date | Nov 20, 2012 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Dec 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for detecting an object includes a filter for filtering a current input image and a background model generated based on a previous input image, a homography matrix estimation unit for estimating a homography matrix between the current input image and the background model, an image alignment unit for converting the background model by applying the homography matrix to a filtered background model and aligning a converted background model and a filtered current input image, and a foreground/background detection unit for detecting a foreground by comparing corresponding pixels between the converted background model and the filtered current input image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.