An unmanned aerial vehicle comprises a body coupled with a plurality of propulsion systems and an imaging device; an encoder that encodes video data generated by the imaging device, and a wireless communication system for transmitting the encoded video data. The encoder includes a region of interest (ROI) control module that determines, within an image frame of the video data, a first region and a second region, the ROI control module further setting a first limit indicating a maximum value of quantization parameters for encoding each macroblock within the first region, a second limit indicating a maximum size of the first region, and a third limit indicating a minimum size of the second region. The encoder further includes a ROI monitoring module coupled to the ROI control module that estimates a first image quality of the first region and a second image quality of a second region, and the ROI control module adjusts a size of the first region and the second region according to the first image quality and the second image quality. The present application also relates to an encoding method as embodied in the encoder.


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    Title :

    METHOD, DEVICE, AND STORAGE MEDIUM FOR ENCODING VIDEO DATA BASE ON REGIONS OF INTERESTS


    Contributors:
    ZHU LEI (author) / ZHAO WENJUN (author) / SU WENYI (author) / ZHAO LIANG (author)

    Publication date :

    2021-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / B64C AEROPLANES , Flugzeuge



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