Method, system for removing background of a video, and a computer-readable storage device
US9934439B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Nov 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure is related to a method and a system for removing background of a video. One of the objectives of the method and system is to extract a motion image object from a video. In the method, a plurality of frames is first retrieved from the video. An image processing approach is performed to recognize image features of every frame. A plurality of color blocks for every frame are obtained through the image processing scheme. A variance among the pixels in every color block of two continuous frames can be obtained by a comparison computation, so as to form a color block variance. The color block variance allows the system to determine a motion target object as well as its image contour. The blocks excepting the blocks of the target object are set as transparent blocks. Therefore the background relative to the target object can be removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.