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    CONTROL AND USE OF CHROMA QUANTIZATION PARAMETER VALUES
    32.
    发明申请
    CONTROL AND USE OF CHROMA QUANTIZATION PARAMETER VALUES 审中-公开
    控制和使用色谱定量参数值

    公开(公告)号：US20160316206A1

    公开(公告)日：2016-10-27

    申请号：US15202933

    申请日：2016-07-06

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Gary J. Sullivan ,  Sandeep Kanumuri

    IPC: H04N19/124 ,  H04N19/186 ,  H04N19/174 ,  H04N19/70 ,  H04N19/126 ,  H04N19/44

    CPC classification number: H04N19/124 ,  H04N19/126 ,  H04N19/146 ,  H04N19/174 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70

    Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.

    Abstract translation: 控制和使用依赖于亮度QP值的色度量化参数（“QP”）值的创新。 更一般来说，创新涉及依赖于原色分量的QP值的次要颜色分量的QP值的控制和使用。 例如，在编码期间，编码器从主要分量QP和次要分量QP偏移量确定QP索引。 编码器将QP索引映射到具有扩展范围的次要组件QP。 编码器输出包括编码内容的比特流的至少一部分。 对应的解码器接收包括编码内容的比特流的至少一部分。 在解码期间，解码器从主要分量QP和次要分量QP偏移量确定QP索引，然后将QP索引映射到具有扩展范围的次分量QP。

    CONTROL AND USE OF CHROMA QUANTIZATION PARAMETER VALUES
    33.
    发明申请
    CONTROL AND USE OF CHROMA QUANTIZATION PARAMETER VALUES 有权

    公开(公告)号：US20250047850A1

    公开(公告)日：2025-02-06

    申请号：US18920094

    申请日：2024-10-18

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Gary J. Sullivan ,  Sandeep Kanumuri

    IPC: H04N19/124 ,  H04N19/126 ,  H04N19/146 ,  H04N19/174 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70

    Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.

    CONTROL AND USE OF CHROMA QUANTIZATION PARAMETER VALUES
    37.
    发明申请
    CONTROL AND USE OF CHROMA QUANTIZATION PARAMETER VALUES 有权

    公开(公告)号：US20220400262A1

    公开(公告)日：2022-12-15

    申请号：US17890496

    申请日：2022-08-18

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Gary J. Sullivan ,  Sandeep Kanumuri

    IPC: H04N19/124 ,  H04N19/70 ,  H04N19/126 ,  H04N19/186 ,  H04N19/174 ,  H04N19/44

    Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.

    Control and use of chroma quantization parameter values
    38.
    发明授权
    Control and use of chroma quantization parameter values 有权

    公开(公告)号：US11457212B2

    公开(公告)日：2022-09-27

    申请号：US17145535

    申请日：2021-01-11

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Gary J. Sullivan ,  Sandeep Kanumuri

    IPC: H04N19/124 ,  H04N19/70 ,  H04N19/126 ,  H04N19/186 ,  H04N19/174 ,  H04N19/44 ,  H04N19/146

    Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.

    Conditional signalling of reference picture list modification information
    39.
    发明授权
    Conditional signalling of reference picture list modification information 有权

    公开(公告)号：US11405636B2

    公开(公告)日：2022-08-02

    申请号：US17229649

    申请日：2021-04-13

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Gary J. Sullivan ,  Sandeep Kanumuri

    IPC: H04N19/00 ,  H04N19/58 ,  H04N19/503 ,  H04N19/70 ,  H04N19/134 ,  H04N19/109 ,  H04N19/573 ,  H04N19/105 ,  H04N19/46 ,  H04N19/85

    Abstract: Innovations in signaling of reference picture list (“RPL”) modification information. For example, a video encoder evaluates a condition that depends at least in part on a variable indicating a number of total reference pictures. Depending on the results of the evaluation, the encoder signals in a bitstream a flag that indicates whether an RPL is modified according to syntax elements explicitly signaled in the bitstream. A video decoder evaluates the condition and, depending on results of the evaluation, parses from a bitstream a flag that indicates whether an RPL is modified according to syntax elements explicitly signaled in the bitstream. The condition can be evaluated as part of processing for an RPL modification structure that includes the flag, or as part of processing for a slice header. The encoder and decoder can also evaluate other conditions that affect syntax elements for list entries of the RPL modification information.

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