发明名称 |
DIGITAL VIDEO SIGNATURE APPARATUS AND METHODS FOR USE WITH VIDEO PROGRAM IDENTIFICATION SYSTEMS |
摘要 |
Digital video signature apparatus and methods for use with video program identification systems are disclosed. The example apparatus and methods generate a signature associated with a video program. An example system includes a frame scanner to scan video frames associated with the video program. The frame scanner is to select a video frame based on a number of intra-coded macro blocks within the video frame. The example system also includes an intra-coded macro block extractor to extract intra-coded macro blocks from the video frame and a scaled image extractor to extract a scaled image from the intra-coded macro blocks. A signature generator is also included in the example system to calculate a plurality of centroids associated with video frame based on the scaled image and to form the signature based on the plurality of centroids. |
申请公布号 |
CA2540575(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
CA20032540575 |
申请日期 |
2003.09.12 |
申请人 |
NIELSEN MEDIA RESEARCH, INC. |
发明人 |
DENG, KEVIN |
分类号 |
H04N7/12;H04H60/37;H04H60/59;H04N7/173;H04N7/26;H04N7/50;H04N17/00 |
主分类号 |
H04N7/12 |
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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