COMPRESSED DOMAIN MOTION DETECTION
    2.
    发明申请

    公开(公告)号:WO2023081879A1

    公开(公告)日:2023-05-11

    申请号:PCT/US2022/079389

    申请日:2022-11-07

    Abstract: Methods and systems for detecting motion using video data from a smart camera device. In some embodiments, and by non-limiting example, this disclosure is directed to detecting motion in the compressed video domain. One aspect is a method comprising receiving compressed video data, extracting macroblocks and motion vectors for a plurality of frames in the compressed video data, identifying frame-level features for each of the plurality of frames based on the macroblocks and the motion vectors, calculating similarity features for each of the identified frame-level features based on the frame-level features identified in consecutive frames, and predicting motion for each of the plurality of frames by providing the frame-level features and the similarity features into a model trained to detect motion.

    METHOD AND SYSTEM FOR SELECTING HIGHLIGHT SEGMENTS

    公开(公告)号:WO2021250009A1

    公开(公告)日:2021-12-16

    申请号:PCT/EP2021/065314

    申请日:2021-06-08

    Abstract: Described are methods and systems for selecting a highlight segment. The computer-implemented method comprises receiving a sequence of frames, and at least one user data; via a converting module, for each frame, selecting a local neighborhood around it, said neighborhood comprising at least one frame; and converting each neighborhood into a feature vector; via a highlighting module, assigning a score to each of the feature vectors based on the user data; via a selection module, selecting at least one highlight segment based on the scoring of the feature vectors; and via an outputting module, outputting the highlight segment. The system comprises a receiving module configured to receive a sequence of frames, and at least one user data; a converting module configured to select a local neighborhood around each frame, said neighborhood comprising at least one frame, and convert each neighborhood into a feature vector; a highlighting module configured to assign a score to each of the feature vector based on the user data; a selection module configured to select at least one highlight segment based on the scoring of the feature vectors; and an output component configured to output the highlight segment.

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