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    IMAGE ENCODING/DECODING METHOD AND DEVICE FOR DETERMINING DIVISION MODE ON BASIS OF COLOR FORMAT, AND METHODFOR TRANSMIT BITSTREAM
    1.
    发明公开
    IMAGE ENCODING/DECODING METHOD AND DEVICE FOR DETERMINING DIVISION MODE ON BASIS OF COLOR FORMAT, AND METHODFOR TRANSMIT BITSTREAM 审中-公开

    公开(公告)号：US20240357089A1

    公开(公告)日：2024-10-24

    申请号：US18643798

    申请日：2024-04-23

    申请人： LG ELECTRONICS INC.

    发明人： Hyeong Moon Jang

    IPC分类号： H04N19/109 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

    CPC分类号： H04N19/109 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

    摘要： An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may comprise determining prediction mode characteristic information based on a color format of a current block, determining a prediction mode type of a lower-layer block split from the current block based on the prediction mode characteristic information, obtaining the lower-layer block by splitting the current block based on the prediction mode type of the lower-layer block, and decoding the lower-layer block based on the prediction mode type of the lower-layer block. The prediction mode type of the lower-layer block comprises a first prediction mode type specifying that both an intra prediction mode and an inter prediction mode are available, a second prediction mode type specifying that only the intra prediction mode is available and a third prediction mode type specifying that only the inter prediction mode is available. Based on a first condition for the current block being satisfied, the prediction mode characteristic information has a first value, and the first condition comprises a case where a color format of the current block is a monochrome format or a 4:4:4 format. Based on the first condition for the current block being not satisfied, the prediction mode characteristic information has a second value or a third value based on at least one of a color format, split mode or size of the current block.

    INTER-PREDICTION CANDIDATE INDEX CODING
    2.
    发明公开
    INTER-PREDICTION CANDIDATE INDEX CODING 审中-公开

    公开(公告)号：US20240340435A1

    公开(公告)日：2024-10-10

    申请号：US18745142

    申请日：2024-06-17

    申请人： Texas Instruments Incorporated

    发明人： Minhua Zhou

    IPC分类号： H04N19/463 ,  H04N19/109 ,  H04N19/176 ,  H04N19/50 ,  H04N19/625

    CPC分类号： H04N19/463 ,  H04N19/109 ,  H04N19/50 ,  H04N19/176 ,  H04N19/625

    摘要： Methods are provided for inter-prediction candidate index coding independent of the construction of the corresponding inter-prediction candidate list, i.e., a merging candidate list or an advanced motion vector predictor list. A maximum allowed number of inter-prediction candidates for an inter-prediction candidate list is used for encoding the inter-prediction candidate index in an encoded bit stream. The maximum allowed number may be pre-determined or may be selected by the encoder and encoded in the bit stream. A decoder may then decode the index using the maximum allowed number of inter-prediction candidates independent of the construction of the corresponding inter-prediction candidate list.