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    METHOD AND DEVICE FOR ENCODING OR DECODING IMAGE BY MEANS OF BLOCK MAP
    61.
    发明公开
    METHOD AND DEVICE FOR ENCODING OR DECODING IMAGE BY MEANS OF BLOCK MAP 审中-公开

    公开(公告)号：EP4167569A1

    公开(公告)日：2023-04-19

    申请号：EP22212646.8

    申请日：2016-10-10

    申请人： Samsung Electronics Co., Ltd.

    发明人： JIN, Bo-ra ,  PARK, Min-woo ,  KIM, Chan-yul ,  MIN, Jung-hye

    IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/119 ,  H04N19/129 ,  H04N19/52

    摘要： Provided are a method and device for encoding or decoding an image by using a block map. In the method and device for decoding an image according to an embodiment set forth herein, a bitstream of an encoded image is received, one or more blocks in a picture are determined using split information obtained from the bitstream, a block map indicating whether or not a previous block among the one or more blocks has been decoded is determined, a neighboring region which is available to be referred to for a current block to be decoded in a certain scan order among the one or more blocks is determined, and the current block is decoded based on the neighboring region which is available to be referred to.

    A VIDEO ENCODER, A VIDEO DECODER AND CORRESPONDING METHODS
    62.
    发明公开
    A VIDEO ENCODER, A VIDEO DECODER AND CORRESPONDING METHODS 审中-公开

    公开(公告)号：EP4164227A1

    公开(公告)日：2023-04-12

    申请号：EP22211005.8

    申请日：2019-09-12

    申请人： Huawei Technologies Co., Ltd.

    发明人： HENDRY, Fnu ,  WANG, Ye-Kui

    IPC分类号： H04N19/70 ,  H04N19/58 ,  H04N19/105

    摘要： A method of decoding a coded video bitstream is provided. The method includes parsing a flag; parsing a first reference picture list structure; determining that an index to a second reference picture list structure is not present in a slice header of the coded video bitstream and inferring that the index to the second reference picture list structure is the same as an index to the first reference picture list structure when the flag has a first value; determining that the index to the second reference picture list structure is present in the slice header when the flag has a second value; generating a reference picture list using the first reference picture list structure or the second reference picture list structure; and performing inter-prediction based on the reference picture list to generate a reconstructed block.

    DEVICE AND METHOD FOR ENCODING MOTION VECTOR, AND DEVICE AND METHOD FOR DECODING MOTION VECTOR
    63.
    发明公开
    DEVICE AND METHOD FOR ENCODING MOTION VECTOR, AND DEVICE AND METHOD FOR DECODING MOTION VECTOR 审中-公开

    公开(公告)号：EP4135327A1

    公开(公告)日：2023-02-15

    申请号：EP21784752.4

    申请日：2021-01-27

    申请人： Samsung Electronics Co., Ltd.

    发明人： PARK, Minwoo ,  PARK, Minsoo ,  CHOI, Kwangpyo ,  CHOI, Kiho ,  PIAO, Yinji

    IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/70 ,  H04N19/176

    摘要： Provided is a method of decoding a motion vector, the method including determining the availability of a first neighboring block selected according to information obtained from a bitstream; when the first neighboring block is identified as not being available by using information indicating the availability of the first neighboring block, or a reference picture index of the first neighboring block in a same prediction direction as a prediction direction of a current block is identical to a pre-determined value; obtaining a prediction motion vector of the current block from a motion vector of a second neighboring block at a pre-determined location, the second neighboring block being adjacent to the current block; and obtaining a motion vector of the current block by combining the prediction motion vector of the current block with a differential motion vector.

    TRANSMISSION DEVICE, TRANSMISSION METHOD, AND PROGRAM
    64.
    发明公开
    TRANSMISSION DEVICE, TRANSMISSION METHOD, AND PROGRAM 审中-公开

    公开(公告)号：EP4131952A1

    公开(公告)日：2023-02-08

    申请号：EP21779726.5

    申请日：2021-03-24

    申请人： Sony Interactive Entertainment Inc.

    发明人： OTSUKA, Katsushi

    IPC分类号： H04N19/105 ,  H04N19/166 ,  H04N19/172

    摘要： Provided are a transmission apparatus, a transmission method, and a program that achieve transmission of image data having an appropriate referent with a small network load. An acquisition unit (26) sequentially acquires frame images drawn in a frame buffer. An encoding processing unit (28) sequentially encodes encoding units each corresponding to part or whole of one of the frame images and generates image data. A data transmitting unit (30) sequentially transmits the image data. A transmission failure probability estimating unit (38) estimates, after the transmission of the image data, a transmission failure probability that is a probability of failure of the transmission of the image data. A referent determining unit (42) determines, in reference to the transmission failure probability of the image data, one or a plurality of referents that serve as a referent of a given encoding unit from the encoding units related to the image data transmitted. The encoding processing unit (28) encodes the given encoding unit by referring to the one or the plurality of referents, thereby generating the image data.