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    NETWORK ABSTRACTION LAYER UNIT HEADER
    1.
    发明申请
    NETWORK ABSTRACTION LAYER UNIT HEADER 审中-公开

    公开(公告)号：WO2020180966A1

    公开(公告)日：2020-09-10

    申请号：PCT/US2020/020955

    申请日：2020-03-04

    Applicant: TENCENT AMERICA LLC ,  WENGER, Stephan ,  CHOI, Byeongdoo ,  LIU, Shan

    Inventor： WENGER, Stephan ,  CHOI, Byeongdoo ,  LIU, Shan

    IPC: H04N19/169 ,  H04N19/70

    Abstract: An approach for reconstructing a Network Abstraction Layer (NAL) unit for video decoding using at least one processor includes decoding a first syntax element included in a NAL unit header; determining, based on the first syntax element, a NAL unit class including a plurality of NAL unit types; decoding a second syntax element included in the NAL unit header; and based on the NAL unit class being a first NAL unit class, determining a NAL unit type from among the NAL unit types using a combination of the NAL unit class and the second syntax element, and reconstructing the NAL unit based on the determined NAL unit type; and based on the NAL unit class being a second NAL unit class, determining a temporal identifier (TID) based on the second syntax element, and reconstructing the NAL unit based on the determined TID.

    METHOD FOR IDENTIFICATION OF RANDOM ACCESS POINT AND PICTURE TYPES
    2.
    发明申请
    METHOD FOR IDENTIFICATION OF RANDOM ACCESS POINT AND PICTURE TYPES 审中-公开

    公开(公告)号：WO2020139921A1

    公开(公告)日：2020-07-02

    申请号：PCT/US2019/068540

    申请日：2019-12-26

    Applicant: CHOI, Byeongdoo ,  WENGER, Stephan ,  LIU, Shan

    Inventor： CHOI, Byeongdoo ,  WENGER, Stephan ,  LIU, Shan

    IPC: H04N19/103 ,  H04N19/115 ,  H04N19/36 ,  H04N19/44

    Abstract: An approach for reconstructing a current Network Abstraction Layer (NAL) unit for video decoding using at least one processor includes determining the current NAL unit to be an Intra Random Access Picture (IRAP) NAL unit; determining whether a previous NAL unit decoded immediately before the current NAL unit indicates an end of a coded video sequence (CVS); based on determining that the previous NAL unit indicates the end of the CVS, decoding the current NAL unit as one from among an Instantaneous Decoder Refresh (IDR) NAL unit or a Broken Link Access (BLA) NAL unit; and based on determining that the previous NAL unit does not indicate the end of the CVS, decoding the current NAL unit as a Clean Random Access (CRA) NAL unit, and reconstructing the decoded current NAL unit.

    METHOD AND DEVICE USING AN OUT OF BAND END OF STREAM NAL UNIT IN DECODING
    3.
    发明申请
    METHOD AND DEVICE USING AN OUT OF BAND END OF STREAM NAL UNIT IN DECODING 审中-公开

    公开(公告)号：WO2020055589A1

    公开(公告)日：2020-03-19

    申请号：PCT/US2019/048538

    申请日：2019-08-28

    Applicant: WENGER, Stephan ,  LIU, Shan

    Inventor： WENGER, Stephan ,  LIU, Shan

    IPC: H04N19/169 ,  H04N19/196 ,  H04N19/463 ,  H04N19/127 ,  H04N19/70

    Abstract: A method of and a device for decoding at least one video stream, each video stream of the at least one video stream associated with a respective Decoder Parameter Set. The method includes activating, by a decoder, the Decoder Parameter Set of a first video stream of the at least one video stream, processing, by the decoder, an End of Stream NAL unit that is made available to the decoder outside of the first video stream, and deactivating, by the decoder, the Decoder Parameter Set of the first video stream in response to the decoder processing the End of Stream NAL unit.

    METHOD AND DEVICE FOR DECODING WITH PALETTE MODE
    4.
    发明申请
    METHOD AND DEVICE FOR DECODING WITH PALETTE MODE 审中-公开

    公开(公告)号：WO2020055546A1

    公开(公告)日：2020-03-19

    申请号：PCT/US2019/047019

    申请日：2019-08-19

    Applicant: TENCENT AMERICA LLC ,  YE, Jing ,  LIU, Shan ,  XU, Xiaozhong ,  LI, Xiang

    Inventor： YE, Jing ,  LIU, Shan ,  XU, Xiaozhong ,  LI, Xiang

    IPC: G06T9/00 ,  H04N19/186 ,  H04N19/50

    Abstract: A method for decoding a video sequence of a coded video stream, performed by at least one processor, using at least one color palette in a palette mode, each of the at least one color palette including at least one luma value or at least one chroma value, the method including determining whether a current tree structure is a dual tree structure where a luma color plane has a split tree structure that is different from a split tree structure of a chroma color plane; and decoding at least one image of the video sequence using one or more color palettes of the at least one color palette based on the determining whether the current tree structure is the dual tree structure.

    INTRA INTERPOLATION FILTER FOR MULTI-LINE INTRA PREDICTION
    5.
    发明申请
    INTRA INTERPOLATION FILTER FOR MULTI-LINE INTRA PREDICTION 审中-公开

    公开(公告)号：WO2020055545A1

    公开(公告)日：2020-03-19

    申请号：PCT/US2019/047011

    申请日：2019-08-19

    Applicant: ZHAO, Liang ,  ZHAO, Xin ,  LI, Xiang ,  LIU, Shan

    Inventor： ZHAO, Liang ,  ZHAO, Xin ,  LI, Xiang ,  LIU, Shan

    IPC: H04N19/117 ,  H04N19/105 ,  H04N19/159 ,  H04N19/132 ,  G06T5/00 ,  G06T5/20

    Abstract: A method and apparatus for selecting an intra interpolation filter for multi-line intra prediction based on a reference line index for decoding a video sequence includes identifying a set of reference lines associated with a coding unit. A first type of interpolation filter is applied to reference samples included in a first reference line, of the set of reference lines, that is adjacent to the coding unit to generate a first set of prediction samples based on the first reference line being associated with a first reference line index. A second type of interpolation filter is applied to reference samples included in a second reference line, of the set of reference lines, that is non-adjacent to the coding unit to generate a second set of prediction samples based on the second reference line being associated with a second reference line index.

    METHOD AND APPARATUS FOR MULTI-LINE INTRA PREDICTION
    6.
    发明申请
    METHOD AND APPARATUS FOR MULTI-LINE INTRA PREDICTION 审中-公开

    公开(公告)号：WO2020046496A1

    公开(公告)日：2020-03-05

    申请号：PCT/US2019/043141

    申请日：2019-07-24

    Applicant: ZHAO, Liang ,  ZHAO, Xin ,  LI, Xiang ,  LIU, Shan

    Inventor： ZHAO, Liang ,  ZHAO, Xin ,  LI, Xiang ,  LIU, Shan

    IPC: H04N19/11 ,  H04N19/176 ,  H04N19/117

    Abstract: A method of and an apparatus for controlling intra prediction for decoding of a video sequence are provided. The method includes, based on a reference line index signaling, to a decoder, a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, applying intra smoothing on only the first reference line, based on the intra smoothing being applied only on the first reference line, applying intra prediction on the coding unit, and based on the intra prediction being applied on the coding unit, applying a position-dependent intra prediction combination (PDPC) on only the first reference line.

    PALETTE PREDICTION AND SHARING IN VIDEO CODING
    8.
    发明申请
    PALETTE PREDICTION AND SHARING IN VIDEO CODING 审中-公开
    PALETTE预测和共享在视频编码

    公开(公告)号：WO2015094711A1

    公开(公告)日：2015-06-25

    申请号：PCT/US2014/068725

    申请日：2014-12-05

    Applicant: MEDIATEK INC. ,  LAI, Wang-lin ,  LIU, Shan ,  CHUANG, Tzu-der ,  XU, Xiaozhong ,  YE, Jing

    Inventor： LAI, Wang-lin ,  LIU, Shan ,  CHUANG, Tzu-der ,  XU, Xiaozhong ,  YE, Jing

    IPC: H04N1/64 ,  H04N19/186

    CPC classification number: H04N19/186 ,  H04N19/105 ,  H04N19/115 ,  H04N19/157 ,  H04N19/167 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70

    Abstract: A method and apparatus for palette prediction and sharing according to the present invention are disclosed. A method incorporating an embodiment of the present invention determines one or more palette sharing flags for the current block. A set of current palettes corresponding to the set of color components is generated according to the palette sharing flags. If a first palette sharing flag is asserted, one or more current palettes indicated by the first palette sharing flag are copied entirely from one or more reference palettes of a set of reference palettes. If the first palette sharing flag is not asserted, one or more current palettes indicated by the first palette sharing flag are derived from a bitstream associated with the video data. Encoding or decoding is then applied to the current block according to the set of current palettes.

    Abstract translation: 公开了一种根据本发明的调色板预测和共享的方法和装置。 结合本发明实施例的方法确定当前块的一个或多个调色板共享标志。 根据调色板共享标志生成与该组颜色分量对应的一组当前调色板。 如果第一调色板共享标志被断言，则由第一调色板共享标志指示的一个或多个当前调色板完全从一组参考调色板的一个或多个参考调色板复制。 如果第一调色板共享标志未被确认，则由与第一调色板共享标志指示的一个或多个当前调色板从与该视频数据相关联的位流导出。 然后根据当前调色板的集合将编码或解码应用于当前块。

    METHOD AND SYSTEM OF TRANSFORM BLOCK PROCESSING ACCORDING TO QUANTIZATION MATRIX IN VIDEO CODING
    9.
    发明申请
    METHOD AND SYSTEM OF TRANSFORM BLOCK PROCESSING ACCORDING TO QUANTIZATION MATRIX IN VIDEO CODING 审中-公开
    基于视频编码的量化矩阵变换块处理方法与系统

    公开(公告)号：WO2013032794A1

    公开(公告)日：2013-03-07

    申请号：PCT/US2012/051770

    申请日：2012-08-21

    Applicant: MEDIATEK SINGAPORE PTE. LTD. ,  ZHANG, Ximin ,  LIU, Shan

    Inventor： ZHANG, Ximin ,  LIU, Shan

    IPC: H04B1/66 ,  H04N7/12 ,  H04N11/02

    CPC classification number: H04N19/126 ,  H04N19/122 ,  H04N19/176 ,  H04N19/18 ,  H04N19/197 ,  H04N19/198 ,  H04N19/60 ,  H04N19/70 ,  H04N19/80

    Abstract: A method and system for processing transform blocks according to quantization matrices in a video coding system are disclosed. Embodiments of the present invention derive one or more derived quantization matrices from one or more initial quantization matrices or from one previously derived quantization matrix. In one embodiment, the initial quantization matrices include a 4x4 and 8x8 quantization matrices, which can be either default or user-defined. All quantization matrices larger than 8x8 can be derived from the 4x4 and 8x8 initial quantization matrices. Non-square quantization matrices can be derived from at least one initial square quantization matrix or at least one derived square quantization matrix. Individual initial quantization matrices may be used to derive respective larger quantization matrices. Furthermore, the individual initial quantization matrices may be derived from larger quantization matrices designed for corresponding transform sizes. Syntax design to enable the quantization matrix representation is also disclosed.

    Abstract translation: 公开了一种根据视频编码系统中的量化矩阵来处理变换块的方法和系统。 本发明的实施例从一个或多个初始量化矩阵或从一个先前导出的量化矩阵导出一个或多个导出的量化矩阵。 在一个实施例中，初始量化矩阵包括4x4和8x8量化矩阵，其可以是默认的或用户定义的。 大于8x8的所有量化矩阵可以从4x4和8x8初始量化矩阵导出。 可以从至少一个初始平方量化矩阵或至少一个导出的平方量化矩阵导出非平方量化矩阵。 各个初始量化矩阵可以用于导出相应较大的量化矩阵。 此外，各个初始量化矩阵可以从为相应的变换大小设计的较大的量化矩阵导出。 还公开了启用量化矩阵表示的语法设计。

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