知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

129 records (took 0.028 seconds)

    PERFORMING RESIDUAL PREDICTION IN VIDEO CODING
    71.
    发明申请
    PERFORMING RESIDUAL PREDICTION IN VIDEO CODING 有权
    在视频编码中执行残留预测

    公开(公告)号：US20140105299A1

    公开(公告)日：2014-04-17

    申请号：US14040290

    申请日：2013-09-27

    Applicant: QUALCOMM Incorporated

    Inventor： Ying Chen ,  Krishnakanth Rapaka ,  Marta Karczewicz ,  Xiang Li ,  Jianle Chen

    IPC: H04N19/597 ,  H04N19/30

    CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/513 ,  H04N19/52 ,  H04N19/597

    Abstract: In general, techniques are described for performing residual prediction in video coding. As one example, a device configured to code scalable or multi-view video data may comprise one or more processors configured to perform the techniques. The processors may determine a difference picture, for a current picture, based on a first reference picture in a same layer or view as the current picture and a decoded picture in a different layer or view as the current picture. The decoded picture may be in a same access unit as the first reference picture. The processors may perform bi-prediction based on the difference picture to code at least a portion of the current picture.

    Abstract translation: 通常，描述了在视频编码中进行残差预测的技术。 作为一个示例，被配置为对可缩放或多视图视频数据进行编码的设备可以包括配置成执行技术的一个或多个处理器。 处理器可以基于与当前图片相同的层或视图中的第一参考图片和当前图片的不同图层或视图中的解码图片来确定当前图片的差分图片。 解码图像可以在与第一参考图片相同的存取单元中。 处理器可以基于差分图像执行双预测以对当前图像的至少一部分进行编码。

    PREDICTION MODE INFORMATION UPSAMPLING FOR SCALABLE VIDEO CODING
    77.
    发明申请
    PREDICTION MODE INFORMATION UPSAMPLING FOR SCALABLE VIDEO CODING 审中-公开

    公开(公告)号：US20170237990A1

    公开(公告)日：2017-08-17

    申请号：US15585918

    申请日：2017-05-03

    Applicant: QUALCOMM Incorporated

    Inventor： Vadim Seregin ,  Jianle Chen ,  Xiang Li ,  Krishnakanth Rapaka ,  Marta Karczewicz ,  Ying Chen

    IPC: H04N19/159 ,  H04N19/463 ,  H04N19/176 ,  H04N19/33

    Abstract: In one embodiment, an apparatus configured to code video data includes a processor and a memory unit. The memory unit stores video data associated with a first layer having a first spatial resolution and a second layer having a second spatial resolution. The video data associated with the first layer includes at least a first layer block and first layer prediction mode information associated with the first layer block, and the first layer block includes a plurality of sub-blocks where each sub-block is associated with respective prediction mode data of the first layer prediction mode information. The processor derives the predication mode data associated with one of the plurality of sub-blocks based at least on a selection rule, upsamples the derived prediction mode data and the first layer block, and associates the upsampled prediction mode data with each upsampled sub-block of the upsampled first layer block.

    Systems and methods for inter-layer RPS derivation based on sub-layer reference prediction dependency
    79.
    发明授权
    Systems and methods for inter-layer RPS derivation based on sub-layer reference prediction dependency 有权

    公开(公告)号：US09681145B2

    公开(公告)日：2017-06-13

    申请号：US14513089

    申请日：2014-10-13

    Applicant: QUALCOMM Incorporated

    Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Jianle Chen ,  Fnu Hendry

    IPC: H04N19/44 ,  H04N19/597 ,  H04N19/70 ,  H04N19/30

    CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

    Abstract: Systems and methods for inter-layer reference picture set derivation based on sub-layer reference prediction dependency are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store one or more direct reference layer pictures of one or more current pictures in a sequence, wherein the one or more current pictures are associated with a current layer, the current layer being associated with the one or more direct reference layers. The video encoder further comprises a processor in communication with the memory unit. The memory unit is configured to set an indication associated with a current picture to indicate whether all of the one or more direct reference layer pictures of the current picture that are not restricted for use in inter-layer prediction are included in an inter-layer reference picture set associated with the current picture.

Patent Agency Ranking