发明名称 |
DEVICES, SYSTEMS, METHODS, AND MEDIA FOR DETECTING, INDEXING, AND COMPARING VIDEO SIGNALS FROM A VIDEO DISPLAY IN A BACKGROUND SCENE USING A CAMERA-ENABLED DEVICE |
摘要 |
The present invention discloses methods for detecting, indexing, and comparing video signals from a video display in a background scene using a camera-enabled device. Methods include the steps of: pointing a camera-enabled (CEN) device at a video-signal surface; detecting a location of the video-signal surface in the background scene on the CEN device; and extracting at least one frame from the detected video-signal surface. Preferably, the method further includes the steps of: obtaining at least one image from at least one extracted frame; computing at least one compact signature from at least one image; comparing at least one compact signature with at least one stored compact signature in a database; and determining whether at least one match was found between at least one compact signature and at least one stored compact signature. |
申请公布号 |
WO2012131653(A2) |
申请公布日期 |
2012.10.04 |
申请号 |
WO2012IB51584 |
申请日期 |
2012.04.01 |
申请人 |
TVTAK LTD;AMSELEM, DAVID |
发明人 |
AMSELEM, DAVID;HAVA, YUVAL;SHAVIT, ADI;SHAVIT, DANA |
分类号 |
G06T7/20 |
主分类号 |
G06T7/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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