HYBRID VIDEO AND FEATURE CODING AND DECODING

    公开(公告)号:US20210203997A1

    公开(公告)日:2021-07-01

    申请号:US17197500

    申请日:2021-03-10

    Abstract: The present disclosure relates to hybrid video and feature encoding and decoding, with the encoding and decoding of the image feature being performed independently or differentially. The video and feature are encoded and decoded in separate layers, e.g., base layer and enhancement layer. The feature is extracted for a frame of the video, providing a frame-based feature-video association. A feature is extracted from an uncompressed video encoded in an enhancement layer into a feature bitstream. The video is encoded into a video bitstream, with the feature bitstream being embedded into the video bitstream by multiplexing both streams into an output bitstream. The image feature, which may be a differential image feature, is included in a sequence enhancement information SEI message of a frame header information of the video. The output bitstream is provided as input bitstream to a decoder, which de-multiplexes the input bitstream into a video bitstream and feature bitstream, using the SEI message of the frame header. Both bitstreams are decoded in their respective layers, and the image feature is located in the video using the frame-based feature-video association.

    DEVICES AND METHODS FOR DIGITAL SIGNAL PROCESSING

    公开(公告)号:US20220383516A1

    公开(公告)日:2022-12-01

    申请号:US17879592

    申请日:2022-08-02

    Abstract: This disclosure relates to a device for digital signal processing, particularly video image processing. The device obtains image data comprising a plurality of pixels. The image data comprises a plurality of sequentially captured images. The device estimates, for a target image, a set of backward motion vector fields (backward MVFs) based on the target image, and a first set of images captured before the target image. The device further estimates a set of forward MVFs based on the target image and a second set of images captured after the target image. Depending on the estimating for the target image, the device generates an output image based on a merging procedure of the target image and the first set of images and the set of backward MVFs, and/or the second set of images and the set of forward MVFs.

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