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    TEMPORAL SIGNALLING FOR VIDEO CODING TECHNOLOGY
    3.
    发明公开
    TEMPORAL SIGNALLING FOR VIDEO CODING TECHNOLOGY 审中-实审

    公开(公告)号：EP4383720A2

    公开(公告)日：2024-06-12

    申请号：EP24172213.1

    申请日：2020-03-18

    申请人： V-Nova International Limited

    发明人： MEARDI, Guido ,  DAMNJANOVIC, Ivan

    IPC分类号： H04N19/70

    CPC分类号： H04N19/107 ,  H04N19/124 ,  H04N19/136 ,  H04N19/18 ,  H04N19/33 ,  H04N19/48 ,  H04N19/503 ,  H04N19/70

    摘要： An encoder configured to receive an input video comprising respective frames, each frame being divided into a plurality of tiles and each tile being divided into a plurality of blocks. The encoder is configured to generate a base encoded stream using a base encoder, determine a temporal mode for one or more further encoded enhancement streams generated using an enhancement encoder and generate the one or more further encoded enhancement streams according to the determined temporal mode. The temporal mode is either a first temporal mode that does not apply non-zero values from a temporal buffer or a second temporal mode that does apply non-zero values from the temporal buffer. Generating the one or more further encoded enhancement streams comprises applying a transform to each of a series of blocks. The temporal mode is determined for one or more of a frame, tile or block.

    METHOD AND APPARATUS FOR EFFICIENT CODING OF DEPTH LOOKUP TABLE
    8.
    发明授权
    METHOD AND APPARATUS FOR EFFICIENT CODING OF DEPTH LOOKUP TABLE 有权

    公开(公告)号：EP2944080B1

    公开(公告)日：2018-09-12

    申请号：EP14738282.4

    申请日：2014-01-10

    申请人： HFI Innovation Inc.

    发明人： ZHANG, Kai ,  AN, Jicheng

    IPC分类号： H04N19/597 ,  H04N19/463 ,  H04N13/00

    CPC分类号： H04N13/122 ,  H04N13/128 ,  H04N13/161 ,  H04N19/14 ,  H04N19/463 ,  H04N19/48 ,  H04N19/597

    摘要： A method and apparatus for encoding and decoding depth lookup table (DLT) using a constrained table value range are disclosed. For a decoder, a constrained table value range from a minimum table value to a maximum table value of the DLT is decoded from the coded DLT information. Bit map values for depth values in a depth range from (the minimum table value+1) to (the maximum table value−1) are then decoded. The bit map values indicate whether the depth values are in the DLT respectively. The DLT for the current depth map can be reconstructed based on the constrained table value range and the bit map values for the depth values in the depth range. For an encoder, a constrained table value range from a minimum table value to a maximum table value of the DLT is determined and encoded the DLT into coded DLT information.