发明授权
- 专利标题: Video processing for embedded information card localization and content extraction
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申请号: US16411713申请日: 2019-05-14
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公开(公告)号: US11138438B2公开(公告)日: 2021-10-05
- 发明人: Mihailo Stojancic , Warren Packard , Dennis Kanygin
- 申请人: STATS LLC
- 申请人地址: US IL Chicago
- 专利权人: STATS LLC
- 当前专利权人: STATS LLC
- 当前专利权人地址: US IL Chicago
- 代理机构: DLA Piper LLP (US)
- 主分类号: H04N7/18
- IPC分类号: H04N7/18 ; G06K9/00 ; G06T7/12 ; G06K9/34 ; H04N21/435 ; H04N21/44 ; H04N21/458 ; H04N21/81 ; H04N21/84 ; G06F16/908
摘要:
Metadata for one or more highlights of a video stream may be extracted from one or more card images embedded in the video stream. The highlights may be segments of the video stream, such as a broadcast of a sporting event, that are of particular interest. According to one method, video frames of the video stream are stored. One or more information cards embedded in a decoded video frame may be detected by analyzing one or more predetermined video frame regions. Image segmentation, edge detection, and/or closed contour identification may then be performed on identified video frame region(s). Further processing may include obtaining a minimum rectangular perimeter area enclosing all remaining segments, which may then be further processed to determine precise boundaries of information card(s). The card image(s) may be analyzed to obtain metadata, which may be stored in association with at least one of the video frames.
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