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    CONSTRAINED INTRA-PREDICTION FOR BLOCK COPY MODE
    81.
    发明申请
    CONSTRAINED INTRA-PREDICTION FOR BLOCK COPY MODE 审中-公开

    公开(公告)号：US20170099490A1

    公开(公告)日：2017-04-06

    申请号：US15273514

    申请日：2016-09-22

    Applicant: QUALCOMM Incorporated

    Inventor： Vadim Seregin ,  Krishnakanth Rapaka ,  Rajan Joshi ,  Cheng-Teh Hsieh ,  Marta Karczewicz

    IPC: H04N19/159 ,  H04N19/172 ,  H04N19/186 ,  H04N19/176

    CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/70

    Abstract: Systems and methods are provided for video encoding and decoding using intra-block copy mode when constrained intra-prediction is enabled. In various implementations, a video encoding device can determine a current coding unit for a picture from a plurality of pictures. The video encoding device can further determine that constrained intra-prediction mode is enabled. The video encoding device can further encode the current coding unit using one or more reference samples. The one or more reference samples are determined based on whether a reference sample has been predicted using intra-block copy mode prediction without using any inter-predicted samples. When the reference sample is predicted using intra-block copy mode without using any inter-predicted samples, the reference sample is available for predicting the current coding unit. When the reference sample is predicted using intra-block copy mode using at least one inter-predicted sample, the reference sample is not available for predicting the coding unit.

    Parallel processing for video coding
    83.
    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。

    QP DERIVATION AND OFFSET FOR ADAPTIVE COLOR TRANSFORM IN VIDEO CODING
    85.
    发明申请
    QP DERIVATION AND OFFSET FOR ADAPTIVE COLOR TRANSFORM IN VIDEO CODING 审中-公开
    用于视频编码中自适应色彩变换的QP衍生和偏移

    公开(公告)号：US20160100168A1

    公开(公告)日：2016-04-07

    申请号：US14876594

    申请日：2015-10-06

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Li Zhang ,  Rajan Laxman Joshi ,  Marta Karczewicz

    IPC: H04N19/124 ,  H04N19/176 ,  H04N19/60 ,  H04N19/44

    CPC classification number: H04N19/124 ,  H04N19/12 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H05K999/99

    Abstract: A device for decoding video data is configured to determine, based on a chroma sampling format for the video data, that adaptive color transform is enabled for one or more blocks of the video data; determine a quantization parameter for the one or more blocks based on determining that the adaptive color transform is enabled; and dequantize transform coefficients based on the determined quantization parameter. A device for decoding video data is configured to determine for one or more blocks of the video data that adaptive color transform is enabled; receive in a picture parameter set, one or more offset values in response to adaptive color transform being enabled; determine a quantization parameter for a first color component of a first color space based on a first of the one or more offset values; and dequantize transform coefficients based on the quantization parameter.

    Abstract translation: 用于解码视频数据的设备被配置为基于视频数据的色度采样格式来确定对于视频数据的一个或多个块启用自适应颜色变换; 基于确定所述自适应颜色变换被启用来确定所述一个或多个块的量化参数; 并且基于所确定的量化参数去量化变换系数。 用于对视频数据进行解码的设备被配置为为视频数据的一个或多个块确定自适应颜色变换被启用; 在图像参数集中接收响应于自适应颜色变换被启用的一个或多个偏移值; 基于所述一个或多个偏移值中的第一个来确定第一颜色空间的第一颜色分量的量化参数; 并基于量化参数去量化变换系数。

    UNIFIED INTRA-BLOCK COPY AND INTER-PREDICTION
    87.
    发明申请
    UNIFIED INTRA-BLOCK COPY AND INTER-PREDICTION 审中-公开
    统一的内部复制和预测

    公开(公告)号：US20160057420A1

    公开(公告)日：2016-02-25

    申请号：US14831644

    申请日：2015-08-20

    Applicant: QUALCOMM Incorporated

    Inventor： Chao Pang ,  Krishnakanth Rapaka ,  Ye-Kui Wang ,  Joel Sole Rojals ,  Marta Karczewicz

    IPC: H04N19/124 ,  H04N19/513 ,  H04N19/176

    CPC classification number: H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/523 ,  H04N19/593 ,  H04N19/70

    Abstract: A video coder may include a current picture and a reference picture in a reference picture list. The video coder may determine a co-located block of the reference picture. The co-located block is co-located with a current block of the current picture. Furthermore, the video coder derives a temporal motion vector predictor from the co-located block and may determine the temporal motion vector predictor has sub-pixel precision. The video coder may right-shift the temporal motion vector predictor determined to have sub-pixel precision. In addition, the video coder may determine, based on the right-shifted temporal motion vector predictor, a predictive block within the current picture.

    Abstract translation: 视频编码器可以在参考图片列表中包括当前图片和参考图片。 视频编码器可以确定参考图片的共同定位块。 共址块与当前图像的当前块共同定位。 此外，视频编码器从共址块导出时间运动矢量预测器，并且可以确定时间运动矢量预测器具有子像素精度。 视频编码器可以对确定为具有子像素精度的时间运动矢量预测器进行右移。 此外，视频编码器可以基于右移时间运动矢量预测器确定当前图像内的预测块。

    METHOD FOR MOTION VECTOR DIFFERENCE (MVD) AND INTRA BLOCK COPY VECTOR DIFFERENCE (BVD) CODING OF SCREEN CONTENT VIDEO DATA
    88.
    发明申请
    METHOD FOR MOTION VECTOR DIFFERENCE (MVD) AND INTRA BLOCK COPY VECTOR DIFFERENCE (BVD) CODING OF SCREEN CONTENT VIDEO DATA 有权
    用于运动矢量差（MVD）和内部块复制矢量差（BVD）编码屏幕内容视频数据的方法

    公开(公告)号：US20150382010A1

    公开(公告)日：2015-12-31

    申请号：US14750935

    申请日：2015-06-25

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Marta Karczewicz ,  Chao Pang ,  Joel Sole Rojals

    IPC: H04N19/513 ,  H04N19/176 ,  H04N19/13

    CPC classification number: H04N19/176 ,  H04N19/13 ,  H04N19/139 ,  H04N19/184 ,  H04N19/52

    Abstract: A method for motion vector difference (MVD) coding of screen content video data is disclosed. In one aspect, the method includes determining an MVD between a predicted motion vector and a current motion vector and generating a binary string comprising n bins via binarizing the MVD. The method further includes determining whether an absolute value of the MVD is greater than a threshold value and encoding a subset of the n bins via an exponential Golomb code having an order that is greater than one in response to the absolute value of the MVD being greater than the threshold value.

    Abstract translation: 公开了一种用于屏幕内容视频数据的运动矢量差（MVD）编码的方法。 一方面，该方法包括：通过二值化MVD，确定预测运动矢量与当前运动矢量之间的MVD，并产生包括n个箱的二进制串。 该方法还包括确定MVD的绝对值是否大于阈值，并且通过响应于MVD的绝对值更大的具有大于1的顺序的指数Golomb码对n个存储体的子集进行编码 超过阈值。

    SYSTEMS AND METHODS FOR INTRA-BLOCK COPY
    89.
    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
    90.
    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。

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