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    Parallel processing for video coding
    111.
    发明授权
    Parallel processing for video coding 有权
    并行处理视频编码

    公开(公告)号：US09473779B2

    公开(公告)日：2016-10-18

    申请号：US14196479

    申请日：2014-03-04

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

    IPC: H04N19/436 ,  H04N19/33 ,  H04N19/17 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

    CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

    Abstract: In one example, a device for coding video data includes a video coder configured to code data indicating whether tile boundaries of different layers of video data are aligned and whether inter-layer prediction is allowed along or across tile boundaries of enhancement layer blocks, code an enhancement layer block in an enhancement layer tile of the video data without using inter-layer prediction from a collocated base layer block for which inter-layer filtering or reference layer filtering across tile boundaries in a reference layer picture in an access unit including both the enhancement layer tile and the base layer block is enabled, and code the collocated base layer block.

    Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为对表示视频数据的不同层的瓦片边界是否对准的数据进行编码，以及允许层间预测沿着或跨越增强层块的平铺边界，代码 增强层块在视频数据的增强层块中，而不使用来自并置基础层块的层间预测，对于该层次块来说，在包括增强的访问单元的访问单元中的参考层图像中的跨层过滤或跨平铺边界的参考层过滤 层瓦片和基层块被启用，并对并置的基层块进行编码。

    Alternative transform in scalable video coding
    112.
    发明授权
    Alternative transform in scalable video coding 有权
    可扩展视频编码中的替代变换

    公开(公告)号：US09319684B2

    公开(公告)日：2016-04-19

    申请号：US13969406

    申请日：2013-08-16

    Applicant: QUALCOMM Incorporated

    Inventor： Marta Karczewicz ,  Liwei Guo ,  Xiang Li ,  Jianle Chen

    IPC: H04N11/02 ,  H04N19/60 ,  H04N19/12 ,  H04N19/157 ,  H04N19/17 ,  H04N19/30

    CPC classification number: H04N19/00775 ,  H04N19/12 ,  H04N19/157 ,  H04N19/17 ,  H04N19/30 ,  H04N19/60

    Abstract: An apparatus for coding video data according to certain aspects includes a memory and a processor in communication with the memory. The memory stores video block information. The video block information includes reference layer block information. The processor determines, based on a parameter of the video block information, a transform function that may be used to code the video block information. The processor may encode or decode the video block information. The transform function may be an alternative transform when the parameter is a predetermined value and a primary transform when the parameter is not the predetermined value. The alternative transform includes one of: a discrete-sine-transform (DST), a Type-I DST, a Type-III DST, a Type-IV DST, a Type-VII DST, a discrete-cosine-transform (DCT), a DCT of different types, and a Karhunen-Loeve transform (KLT).

    Abstract translation: 根据某些方面的用于编码视频数据的装置包括与存储器通信的存储器和处理器。 存储器存储视频块信息。 视频块信息包括参考层块信息。 处理器基于视频块信息的参数确定可用于对视频块信息进行编码的变换函数。 处理器可以对视频块信息进行编码或解码。 当参数是预定值时，变换函数可以是替代变换，并且当参数不是预定值时，变换函数可以是一次变换。 替代变换包括以下之一：离散正弦变换（DST），I型DST，III型DST，Type-IV DST，Type-VII DST，离散余弦变换（DCT） ，不同类型的DCT，以及Karhunen-Loeve变换（KLT）。

    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY
    113.
    发明申请
    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY 审中-公开
    内部复制的系统和方法

    公开(公告)号：US20150373358A1

    公开(公告)日：2015-12-24

    申请号：US14743253

    申请日：2015-06-18

    Applicant: QUALCOMM Incorporated

    Inventor： Chao Pang ,  Krishnakanth Rapaka ,  Xiang Li ,  Joel Sole Rojals ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC: H04N19/513 ,  H04N19/52 ,  H04N19/176 ,  H04N19/184 ,  H04N19/174 ,  H04N19/503 ,  H04N19/172

    CPC classification number: H04N19/176 ,  H04N19/105 ,  H04N19/109 ,  H04N19/159 ,  H04N19/174 ,  H04N19/593

    Abstract: Techniques and systems are provided for encoding and decoding video data. For example, a method of encoding video data including a plurality of pictures is described. The method includes performing intra-picture prediction on a block of one of the pictures to generate a prediction unit. Performing the intra-picture prediction includes selecting a reference block for intra-block copy prediction of a coding tree unit (CTU). The reference block is selected from a plurality of encoded blocks, and blocks within the CTU encoded with bi-prediction are excluded from selection as the reference block. Performing the intra-picture prediction further includes performing intra-block copy prediction with the selected reference block to generate the prediction unit. The method also includes generating syntax elements encoding the prediction unit based on the performed intra-picture prediction.

    Abstract translation: 提供技术和系统用于对视频数据进行编码和解码。 例如，描述了对包括多个图像的视频数据进行编码的方法。 该方法包括对一幅图像的块执行画面内预测，以生成预测单元。 执行图像内预测包括选择用于编码树单元（CTU）的块内复制预测的参考块。 从多个编码块中选择参考块，并且将用双预测编码的CTU内的块从选择中排除为参考块。 执行图像内预测还包括利用所选择的参考块执行块内复制预测以生成预测单元。 该方法还包括基于所执行的图像内预测来生成编码预测单元的语法元素。

    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY
    114.
    发明申请
    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY 审中-公开
    内部复制的系统和方法

    公开(公告)号：US20150373357A1

    公开(公告)日：2015-12-24

    申请号：US14743176

    申请日：2015-06-18

    Applicant: QUALCOMM Incorporated

    Inventor： Chao Pang ,  Krishnakanth Rapaka ,  Xiang Li ,  Joel Sole Rojals ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC: H04N19/513 ,  H04N19/184 ,  H04N19/172 ,  H04N19/503 ,  H04N19/52

    CPC classification number: H04N19/176 ,  H04N19/105 ,  H04N19/109 ,  H04N19/159 ,  H04N19/174 ,  H04N19/593

    Abstract: Techniques and systems are provided for encoding and decoding video data. For example, a method of encoding video data includes obtaining video data at an encoder, and determining to perform intra-picture prediction on the video data, using intra-block copy prediction, to generate the plurality of encoded video pictures. The method also includes performing the intra-picture prediction on the video data using the intra-block copy prediction, and, in response to determining to perform the intra-picture prediction on the video data using the intra-block copy prediction, disabling at least one of inter-picture bi-prediction or inter-picture uni-prediction for the plurality of encoded video pictures. The method also includes generating the plurality of encoded video pictures based on the received video data according to the performed intra-block copy prediction.

    Abstract translation: 提供技术和系统用于对视频数据进行编码和解码。 例如，编码视频数据的方法包括：在编码器处获得视频数据，并且使用块内复制预测确定对视频数据执行画面内预测，以生成多个编码视频图像。 该方法还包括使用块内复制预测对视频数据进行图像内预测，并且响应于使用块内复制预测确定对视频数据执行图像内预测，至少禁用 对于多个经编码的视频图像中的一个图像间预测或图像间预测。 该方法还包括根据所执行的块内复制预测，基于接收到的视频数据生成多个编码视频图像。

    USING A CURRENT PICTURE AS A REFERENCE FOR VIDEO CODING
    115.
    发明申请
    USING A CURRENT PICTURE AS A REFERENCE FOR VIDEO CODING 审中-公开
    使用电流图像作为视频编码的参考

    公开(公告)号：US20150271487A1

    公开(公告)日：2015-09-24

    申请号：US14663155

    申请日：2015-03-19

    Applicant: QUALCOMM Incorporated

    Inventor： Xiang Li ,  Chao Pang ,  Ying Chen ,  Ye-Kui Wang

    IPC: H04N19/105 ,  H04N19/573 ,  H04N19/58 ,  H04N19/139 ,  H04N19/176 ,  H04N19/159

    CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/503 ,  H04N19/52 ,  H04N19/573 ,  H04N19/58

    Abstract: An example method for encoding or decoding video data includes storing, by a video coder and in a reference picture buffer, a version of a current picture of the video data, including the current picture in a reference picture list (RPL) used to predict the current picture, and coding, by the video coder and based on the RPL, a block of video data in the current picture based on a predictor block of video data included in the version of the current picture stored in the reference picture buffer.

    Abstract translation: 用于对视频数据进行编码或解码的示例性方法包括：通过视频编码器和参考图像缓冲器，将用于预测图像数据的参考图像列表（RPL）中的包括当前图像的视频数据的当前图像的版本存储 通过视频编码器并且基于RPL，基于存储在参考图像缓冲器中的当前图像的版本中包括的视频数据的预测块，当前图像中的视频数据块。

    Affine motion vector prediction in video coding
    118.
    发明授权
    Affine motion vector prediction in video coding 有权

    公开(公告)号：US11889100B2

    公开(公告)日：2024-01-30

    申请号：US16189481

    申请日：2018-11-13

    Applicant: QUALCOMM Incorporated

    Inventor： Kai Zhang ,  Jianle Chen ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Marta Karczewicz

    IPC: H04N19/52 ,  H04N19/176 ,  H04N19/105 ,  H04N19/54 ,  H04N19/573

    CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/176 ,  H04N19/54 ,  H04N19/573

    Abstract: A method and system of coding video data using affine motion compensation is described. A method may include receiving a current block of video data that is to be decoded using affine motion compensation, and constructing an affine motion vector predictor (MVP) list for one or more control points of the current block of video data, including adding a motion vector from a neighboring block of video data to the affine MVP list in the case that the motion vector has an associated reference picture that is the same as a target reference picture for the current block of video data. A video coder may determine motion vectors for the one or more control points using the affine MVP list, and code the current block of video data with the determined motion vectors for the one or more control points of the current block of video data.

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