发明授权
- 专利标题: Video window detector
- 专利标题(中): 视频窗口检测器
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申请号: US11565464申请日: 2006-11-30
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公开(公告)号: US07881547B2公开(公告)日: 2011-02-01
- 发明人: Greg Neal
- 申请人: Greg Neal
- 申请人地址: US CA Santa Clara
- 专利权人: Genesis Microchip Inc.
- 当前专利权人: Genesis Microchip Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Beyer Law Group LLP
- 代理商 Lisa K. Jorgenson
- 主分类号: G06K9/40
- IPC分类号: G06K9/40
摘要:
The invention provides for automatically identifying the location of a displayed video window based upon a characterization of selected portions of the image for realness based upon a distribution of luminance values for the selected portions. The image is then searched mathematically for a large rectangle of realness, and if found, a similar operation is performed in a smaller rectangle around each of the edges of the large rectangle, in turn, zooming in to a resolution of one pixel, thus identifying the position of the edge. This process can be repeated as often as necessary in order to maintain a fix on the edges of the video window.
公开/授权文献
- US20080025631A1 VIDEO WINDOW DETECTOR 公开/授权日:2008-01-31