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    Device and method for scalable and multiview/3D coding of video information
    42.
    发明授权
    Device and method for scalable and multiview/3D coding of video information 有权
    用于视频信息的可扩展和多视图/ 3D编码的设备和方法

    公开(公告)号：US09357211B2

    公开(公告)日：2016-05-31

    申请号：US14137101

    申请日：2013-12-20

    Applicant: QUALCOMM Incorporated

    Inventor： Xiang Li ,  Jianle Chen ,  Marta Karczewicz ,  Vadim Seregin ,  Wei Pu ,  Krishnakanth Rapaka ,  Liwei Guo

    IPC: H04N11/02 ,  H04N19/187 ,  H04N19/597 ,  H04N19/52 ,  H04N19/593 ,  H04N19/154 ,  H04N19/59

    CPC classification number: H04N19/187 ,  H04N19/154 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/597

    Abstract: An apparatus configured to code (e.g., encode or decode) video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a base layer and an enhancement layer. The processor is configured to up-sample a base layer reference block by using an up-sampling filter when the base and enhancement layers have different resolutions; perform motion compensation interpolation by filtering the up-sampled base layer reference block; determine base layer residual information based on the filtered up-sampled base layer reference block; determine weighted base layer residual information by applying a weighting factor to the base layer residual information; and determine an enhancement layer block based on the weighted base layer residual information. The processor may encode or decode the video information.

    Abstract translation: 被配置为对视频信息进行编码（例如，编码或解码）的装置包括与存储器单元通信的存储器单元和处理器。 存储器单元被配置为存储与基本层和增强层相关联的视频信息。 处理器被配置为当基层和增强层具有不同分辨率时，通过使用上采样滤波器对基层参考块进行采样; 通过对上采样的基层参考块进行滤波来执行运动补偿内插; 基于滤波的上采样基层参考块确定基层残差信息; 通过对所述基本层残差信息应用加权因子来确定加权基本层残差信息; 并且基于加权的基本层残差信息来确定增强层块。 处理器可以对视频信息进行编码或解码。

    METHOD FOR MOTION ESTIMATION OF NON-NATURAL VIDEO DATA
    44.
    发明申请
    METHOD FOR MOTION ESTIMATION OF NON-NATURAL VIDEO DATA 审中-公开
    非自然视频数据运动估计方法

    公开(公告)号：US20150264387A1

    公开(公告)日：2015-09-17

    申请号：US14659122

    申请日：2015-03-16

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Joel Sole Rojals ,  Li Zhang ,  Marta Karczewicz

    IPC: H04N19/513

    Abstract: A method for motion estimation for screen and non-natural content coding is disclosed. In one aspect, the method may include selecting a candidate block of a first frame of the video data for matching with a current block of a second frame of the video data, calculating a first partial matching cost for matching a first subset of samples of the candidate block to the current block, and determining whether the candidate block has a lowest matching cost with the current block based at least in part on the first partial matching cost.

    Abstract translation: 公开了一种用于屏幕和非自然内容编码的运动估计的方法。 一方面，该方法可以包括：选择视频数据的第一帧的候选块以与视频数据的第二帧的当前块匹配，计算用于匹配第一部分匹配成本 候选块到当前块，并且至少部分地基于第一部分匹配成本来确定候选块是否与当前块具有最低匹配成本。

    BITSTREAM RESTRICTIONS ON PICTURE PARTITIONS ACROSS LAYERS
    45.
    发明申请
    BITSTREAM RESTRICTIONS ON PICTURE PARTITIONS ACROSS LAYERS 有权
    双层图像分割的限制

    公开(公告)号：US20150016543A1

    公开(公告)日：2015-01-15

    申请号：US14328317

    申请日：2014-07-10

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian ,  Jianle Chen

    IPC: H04N19/36 ,  H04N19/70 ,  H04N19/172 ,  H04N19/44

    CPC classification number: H04N19/36 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/30 ,  H04N19/436 ,  H04N19/597 ,  H04N19/70 ,  H04N19/96

    Abstract: Bitstream restrictions or constraints on the partitioning of pictures across layers of video data are described. In some examples, the number of tiles per picture for each layer of a plurality of layers is constrained based on a maximum number of tiles per picture for the layer. In some examples, the number of tiles per picture for each layer of the plurality of layers is no greater than the maximum number of tiles per picture for the layer. In some examples, a sum of the numbers of tiles per picture for the plurality of layers is no greater than a sum of the maximum numbers of tiles per picture for the plurality of layers. In some examples, a second largest coding unit (LCU) or coding tree block (CTB) size for a second layer is constrained based on, e.g., to be equal to, a first LCU size for a first layer.

    Abstract translation: 描述了跨视频数据层的图像划分的位流限制或限制。 在一些示例中，每个图层对于多个层的每层的瓦片数量基于该图层每图层的最大数量被约束。 在一些示例中，多个层中的每层的每个图像的瓦片数量不大于该层的每个图像的最大瓦片数。 在一些示例中，多个层的每个图像的瓦片数量之和不大于多个层的每个图像的最大瓦片数的总和。 在一些示例中，用于第二层的第二大编码单元（LCU）或编码树块（CTB）尺寸基于例如等于第一层的第一LCU大小来约束。

    Methods and systems of restricting bi-prediction in video coding
    46.
    发明授权
    Methods and systems of restricting bi-prediction in video coding 有权

    公开(公告)号：US10404992B2

    公开(公告)日：2019-09-03

    申请号：US15219159

    申请日：2016-07-25

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Rajan Laxman Joshi ,  Vadim Seregin ,  Marta Karczewicz

    IPC: H04N19/00 ,  H04N19/513 ,  H04N19/159 ,  H04N19/174 ,  H04N19/105 ,  H04N19/176 ,  H04N19/593 ,  H04N19/127

    Abstract: Techniques and systems are provided for encoding video data. For example, restrictions on certain prediction modes can be applied for video coding. A restriction can be imposed that prevents inter-prediction bi-prediction from being performed on video data when certain conditions are met. For example, bi-prediction restriction can be based on whether intra-block copy prediction is enabled for one or more coding units or blocks of the video data, whether a value of a syntax element indicates that one or more motion vectors are in non-integer accuracy, whether both motion vectors of a bi-prediction block are in non-integer accuracy, whether the motion vectors of a bi-prediction block are not identical and/or are not from the same reference index, or any combination thereof. If one or more of these conditions are met, the restriction on bi-prediction can be applied, preventing bi-prediction from being performed on certain coding units or blocks.

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