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    Method and apparatus for determining reference picture set of image
    31.
    发明授权
    Method and apparatus for determining reference picture set of image 有权

    公开(公告)号：US10171811B2

    公开(公告)日：2019-01-01

    申请号：US14394820

    申请日：2013-04-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Il-koo Kim ,  Young-o Park

    IPC: H04N19/70 ,  H04N19/136 ,  H04N19/463 ,  H04N19/58 ,  H04N19/124 ,  H04N19/172 ,  H04N19/174 ,  H04N19/86

    Abstract: Determining a reference picture set (RPS), which is a set of reference pictures used in predictive decoding of a current picture that is to be decoded, including: obtaining a flag indicating whether the RPS is determined based on picture order count (POC) values of the current picture and a previous picture or whether the RPS is determined based on an index of a reference RPS, which is an identification value of the reference RPS that is one of pre-defined RPSs and is referred to in determining the RPS, and a delta RPS that is a difference value between a POC vale of a reference picture included in the reference RPS and a POC value of a reference picture included in the RPS; and determining the RPS according to a value of the flag.

    Method and apparatus for encoding and decoding video by using pattern information in hierarchical data unit
    34.
    发明授权
    Method and apparatus for encoding and decoding video by using pattern information in hierarchical data unit 有权

    公开(公告)号：US09641855B2

    公开(公告)日：2017-05-02

    申请号：US14704036

    申请日：2015-05-05

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Min-su Cheon ,  Jung-hye Min ,  Hae-kyung Jung ,  Il-koo Kim

    IPC: H04N19/44 ,  H04N19/46 ,  H04N19/60

    CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/129 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70 ,  H04N19/96

    Abstract: A method of decoding an encoded video including determining at least one coding unit by using split information extracted from a bitstream, obtaining first pattern information indicating whether residual samples of a coding unit among the at least one coding unit are equal to 0, when the first pattern information indicates the residual samples are not equal to 0, extracting from the bitstream transformation index information indicating whether a transformation unit of a current level included in the coding unit from among the at least one coding unit is split, when the transformation index information indicates a split of the transformation unit of the current level, splitting the transformation unit of the current level into transformation units of a lower level, and when the transformation index information indicates a non-split of the transformation unit of the current level, obtaining second pattern information for the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0, wherein the transformation unit of the current level is split into four transformation units of the lower level.

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