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    Method and system for content aware monitoring of media channel output by a media system
    2.
    发明授权
    Method and system for content aware monitoring of media channel output by a media system 有权

    公开(公告)号：US11871057B2

    公开(公告)日：2024-01-09

    申请号：US17839650

    申请日：2022-06-14

    申请人： Evertz Microsystems Ltd.

    发明人： Jeremy Blythe ,  Barnaby Dalton ,  Robert Beattie ,  Andrew Duncan

    IPC分类号： H04N21/23 ,  H04N21/24 ,  H04N21/234

    CPC分类号： H04N21/2407 ,  H04N21/23418

    摘要： A system and method for content aware monitoring of an output of a media channel by a media system is provided herein. In at least one embodiment, the method comprises: receiving a media assertion schedule comprising a schedule of assertion checks which allow validating that the output of the media channel, by the media system, is synchronized with an expected media channel output; receiving, from a signature generating module, at least one observed signature file; determining that the timestamp data, in each of the at least one received observed signature file, aligns with at least one timecode included in an assertion check in the media assertion schedule; identifying an assertion condition included in the assertion check; and validating the assertion condition using the observed media frame signatures included in each of the at least one received observed signature file.

    Methods and apparatus to reduce false positive signature matches due to similar media segments in different reference media assets
    3.
    发明授权
    Methods and apparatus to reduce false positive signature matches due to similar media segments in different reference media assets 有权

    公开(公告)号：US11575455B2

    公开(公告)日：2023-02-07

    申请号：US17368462

    申请日：2021-07-06

    申请人： The Nielsen Company (US), LLC

    发明人： David H. Wright ,  Dan Nelson ,  Raghuram Ranganathan ,  Derrick McCulley

    IPC分类号： H04N21/23 ,  H04H60/58 ,  H04H60/37 ,  H04N21/44 ,  H04N21/442 ,  H04H60/59

    摘要： Methods, apparatus, systems and articles of manufacture to reduce false positive signature matches due to similar media segments in different reference media assets are disclosed. Example apparatus disclosed herein include a signature matcher to compare monitored media signatures with a library of reference media signatures, the monitored media signatures associated with monitored media, the library of reference media signatures including sequences of reference signatures associated with respective reference media assets. Disclosed example apparatus also include a match information identifier to identify a number of different matched reference media assets associated with ones of the sequences of reference media signatures that match a sequence of matched monitored media signatures. Disclosed example apparatus further include a false positive identifier to, in response to the number of different matched reference media assets satisfying a threshold number, eliminate one or more of the matched reference media assets from being credited to the monitored media.

    Video encryption method and apparatus, image capture device and readable storage medium
    6.
    发明授权
    Video encryption method and apparatus, image capture device and readable storage medium 有权

    公开(公告)号：US11252452B2

    公开(公告)日：2022-02-15

    申请号：US16665001

    申请日：2019-10-28

    申请人： Guangdong University of Technology

    发明人： Jianguo Ma ,  Shaohua Zhou ,  Zhiyuan Gao

    IPC分类号： H04N21/23 ,  H04N21/2347 ,  H04N7/167 ,  H04N21/234 ,  H04N21/235

    摘要： The present disclosure discloses a video encryption method comprising: acquiring image frames continuously by using an image acquisition component, and storing the image frames into a frame buffer; acquiring a time encryption sequence, and using the time encryption sequence to obtain an address encryption sequence; and reading each of the image frames in the frame buffer according to the address encryption sequence to obtain an encrypted video when the frame buffer is full. The method continuously acquires the image frames and uses the time encryption sequence to obtain the address encryption sequence, and when the frame buffer is full, each of the image frames in the frame buffer is read according to the address encryption sequence to obtain an encrypted video. In addition, the present disclosure also provides a video encryption apparatus, an image capture device, and a computer readable storage medium, which also have the above-mentioned beneficial effects.