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    DICTIONARY ENCODING AND DECODING OF SCREEN CONTENT
    2.
    发明申请
    DICTIONARY ENCODING AND DECODING OF SCREEN CONTENT 审中-公开
    字幕编码和解码屏幕内容

    公开(公告)号：US20170064330A1

    公开(公告)日：2017-03-02

    申请号：US15120389

    申请日：2014-03-04

    申请人： Bin LI ,  Jizheng XU ,  Feng WU ,  Microsoft Technology Licensing, LLC

    发明人： Bin Li ,  Jizheng Xu ,  Feng Wu

    IPC分类号： H04N19/593 ,  H04N19/70

    CPC分类号： H04N19/50 ,  H04N19/176 ,  H04N19/46 ,  H04N19/90

    摘要： Innovations are provided for encoding and/or decoding video and/or image content using dictionary modes. For example, some innovations predict current pixel values from previous pixel values stored in a 1-D dictionary. Other innovations predict current pixel values from previous pixel values using a pseudo 2-D dictionary mode. Yet other innovations predict current pixel values from previous pixel values in a reference picture using an inter pseudo 2-D dictionary mode. Pixel values can be predicted from previous pixel values (e.g., stored in a dictionary) that are identified by an offset and a length. Yet other innovations encode pixel values using hash matching of pixel values.

    摘要翻译： 提供了使用字典模式对视频和/或图像内容进行编码和/或解码的创新。 例如，一些创新预测了存储在1-D字典中的先前像素值的当前像素值。 其他创新使用伪2-D字典模式预测来自先前像素值的当前像素值。 其他创新使用伪间二维字典模式来预测参考图像中的先前像素值的当前像素值。 可以从由偏移和长度标识的先前像素值（例如，存储在字典中）预测像素值。 其他创新使用像素值的哈希匹配对像素值进行编码。

    BLOCK FLIPPING AND SKIP MODE IN INTRA BLOCK COPY PREDICTION
    4.
    发明申请
    BLOCK FLIPPING AND SKIP MODE IN INTRA BLOCK COPY PREDICTION 审中-公开
    内嵌块复制预测中的块移动和跳跃模式

    公开(公告)号：US20170070748A1

    公开(公告)日：2017-03-09

    申请号：US15029469

    申请日：2014-03-04

    申请人： Bin LI ,  Jizheng XU ,  Feng WU ,  MICROSOFT TECHNOLOGY LICENSING, LLC

    发明人： Bin Li ,  Jizheng Xu ,  Feng Wu

    IPC分类号： H04N19/593 ,  H04N19/70 ,  H04N19/115 ,  H04N19/176

    CPC分类号： H04N19/593 ,  H04N19/115 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

    摘要： Innovations in the area of encoding or decoding of blocks using intra block copy (“BC”) prediction improve coding efficiency for intra-BC-predicted blocks in many situations. For example, some of the innovations relate to block flipping in which an intra-BC-predicted block is flipped relative to a reference region, which can be indicated by a block vector (“BV”) value. Other innovations relate to signaling of a skip mode in which a current intra-BC-predicted block uses a signaled BV differential but lacks residual data.

    摘要翻译： 使用块内复制（“BC”）预测的块编码或解码领域的创新在许多情况下提高了BC内预测块的编码效率。 例如，一些创新涉及块翻转，其中BC内预测块相对于参考区被翻转，其可以由块向量（“BV”）值指示。 其他创新涉及跳跃模式的信令，其中当前BC内预测块使用信号化的BV差分但缺少残留数据。

    FEATURES OF INTRA BLOCK COPY PREDICTION MODE FOR VIDEO AND IMAGE CODING AND DECODING
    5.
    发明申请
    FEATURES OF INTRA BLOCK COPY PREDICTION MODE FOR VIDEO AND IMAGE CODING AND DECODING 审中-公开
    用于视频和图像编码和解码的内部块复制预测模式的特征

    公开(公告)号：US20160241868A1

    公开(公告)日：2016-08-18

    申请号：US15025128

    申请日：2013-10-14

    申请人： Bin LI ,  Jizheng XU ,  Gary J. SULLIVAN ,  MICROSOFT TECHNOLOGY LICENSING, LLC

    发明人： Bin Li ,  Jizheng Xu ,  Gary J. Sullivan

    IPC分类号： H04N19/52 ,  H04N19/91 ,  H04N19/57 ,  H04N19/82 ,  H04N19/86 ,  H04N19/56

    CPC分类号： H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/593 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86 ,  H04N19/91

    摘要： Innovations in intra block copy (“BC”) prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding and decoding. For example, some of the innovations provide ways to select block vector (“BV”) values more effectively. Other innovations provide ways to encode/decode BV values more efficiently. Still other innovations address how to perform in-loop deblock filtering when a block has intra BC prediction mode, or address how to perform intra BC prediction when constrained intra prediction is enabled.

    摘要翻译： 块内复制（“BC”）预测模式的创新促进了在速率失真性能和/或编码和解码的计算效率方面更有效的BC内预测。 例如，一些创新提供了更有效地选择块向量（“BV”）值的方法。 其他创新提供了更有效地对BV值进行编码/解码的方法。 还有其他创新涉及当块具有BC内预测模式时如何执行循环去块滤波，或者当限制帧内预测启用时，如何执行帧内BC预测。

    Skipping evaluation stages during media encoding
    6.
    发明授权
    Skipping evaluation stages during media encoding 有权

    公开(公告)号：US10924743B2

    公开(公告)日：2021-02-16

    申请号：US15549261

    申请日：2015-02-06

    申请人： Microsoft Technology Licensing, LLC ,  Bin Li ,  Jizheng Xu

    发明人： Bin Li ,  Jizheng Xu

    IPC分类号： H04N19/132 ,  H04N19/119 ,  H04N19/52 ,  H04N19/172 ,  H04N19/147 ,  H04N19/127 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70

    摘要： Various innovations in media encoding are presented herein. In particular, the innovations can reduce the computational complexity of encoding by selectively skipping certain evaluation stages during encoding. For example, based on analysis of decisions made earlier in encoding or based on analysis of media to be encoded, an encoder can selectively skip evaluation of certain coding tools (such as residual coding or rate-distortion-optimized quantization), skip evaluation of certain values for parameters or settings (such as candidate unit sizes or transform sizes, or candidate partition patterns for motion compensation), and/or skip evaluation of certain coding modes (such as frequency transform skip mode) that are not expected to improve rate-distortion performance during encoding.

    FLEXIBLE REFERENCE PICTURE MANAGEMENT FOR VIDEO ENCODING AND DECODING
    7.
    发明申请
    FLEXIBLE REFERENCE PICTURE MANAGEMENT FOR VIDEO ENCODING AND DECODING 审中-公开

    公开(公告)号：US20180302640A1

    公开(公告)日：2018-10-18

    申请号：US15767992

    申请日：2015-11-06

    申请人： Bin LI ,  Jizheng XU ,  Microsoft Technology Licensing, LLC

    发明人： Bin Li ,  Jizheng Xu

    IPC分类号： H04N19/513 ,  H04N19/58 ,  H04N19/105 ,  H04N19/117 ,  H04N19/142 ,  H04N19/146 ,  H04N19/17 ,  H04N19/179 ,  H04N19/46 ,  H04N19/82

    摘要： Innovations in flexible reference picture management are described. For example, a video encoder and video decoder use a global reference picture set (“GRPS”) of reference pictures that remain in memory, and hence are available for use in video encoding/decoding, longer than conventional reference pictures. In particular, reference pictures of the GRPS remain available across random access boundaries. Or, as another example, a video encoder and video decoder clip a reference picture so that useful regions of the reference picture are retained in memory, while unhelpful or redundant regions of the reference picture are discarded. Reference picture clipping can reduce the amount of memory needed to store reference pictures or improve the utilization of available memory by providing better options for motion compensation. Or, as still another example, a video encoder and video decoder filter a reference picture to remove random noise (e.g., capture noise due to camera imperfections during capture).