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    Sub-pictures for pixel rate balancing on multi-core platforms
    83.
    发明授权
    Sub-pictures for pixel rate balancing on multi-core platforms 有权

    公开(公告)号：US10244246B2

    公开(公告)日：2019-03-26

    申请号：US13757791

    申请日：2013-02-02

    Applicant: Texas Instruments Incorporated

    Inventor： Minhua Zhou

    IPC: H04N19/436

    Abstract: A method for decoding a compressed video bit stream in a video decoder to recover a video sequence, the video decoder including a plurality of decoder processing cores is provided. The method includes determining that a picture is encoded in the compressed bit stream as a pre-determined number of independently encoded sub-pictures, and dispatching a first encoded sub-picture of the pre-determined number of sub-pictures to a first decoder processing core of the plurality of decoder processing cores and a second encoded sub-picture of the pre-determined number of sub-pictures to a second decoder processing core of the plurality of decoder processing cores, wherein the first encoded sub-picture and the second encoded sub-picture are independently decoded in parallel on the respective first and second decoder processing cores.

    Delayed duplicate I-picture for video coding
    85.
    发明授权
    Delayed duplicate I-picture for video coding 有权

    公开(公告)号：US09906815B2

    公开(公告)日：2018-02-27

    申请号：US13671344

    申请日：2012-11-07

    Applicant: Texas Instruments Incorporated

    Inventor： Ranga Ramanujam Srinivasan ,  Chaitanya Satish Ghone ,  Mihir Narendra Mody ,  Minhua Zhou

    IPC: H04N7/32 ,  H04N19/895 ,  H04N19/172 ,  H04N19/107 ,  H04N19/39 ,  H04N19/65

    CPC classification number: H04N19/895 ,  H04N19/107 ,  H04N19/172 ,  H04N19/39 ,  H04N19/65

    Abstract: A method is provided that includes receiving pictures of a video sequence in a video encoder, and encoding the pictures to generate a compressed video bit stream that is transmitted to a video decoder in real-time, wherein encoding the pictures includes selecting a picture to be encoded as a delayed duplicate intra-predicted picture (DDI), wherein the picture would otherwise be encoded as an inter-predicted picture (P-picture), encoding the picture as an intra-predicted picture (I-picture) to generate the DDI, wherein the I-picture is reconstructed and stored for use as a reference picture for a decoder refresh picture, transmitting the DDI to the video decoder in non-real time, selecting a subsequent picture to be encoded as the decoder refresh picture, and encoding the subsequent picture in the compressed bit stream as the decoder refresh picture, wherein the subsequent P-picture is encoded as a P-picture predicted using the reference picture.

    Memory bandwidth reduction for motion compensation in video coding
    88.
    发明授权
    Memory bandwidth reduction for motion compensation in video coding 有权
    视频编码中运动补偿的内存带宽减少

    公开(公告)号：US09591312B2

    公开(公告)日：2017-03-07

    申请号：US13864159

    申请日：2013-04-16

    Applicant: Texas Instruments Incorporated

    Inventor： Minhua Zhou

    IPC: H04N19/159 ,  H04N19/176 ,  H04N19/109 ,  H04N19/157 ,  H04N19/433

    CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/109 ,  H04N19/122 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/433

    Abstract: Motion compensation requires a significant amount of memory bandwidth, especially for smaller prediction unit sizes. The worst case bandwidth requirements can occur when bi-predicted 4×8 or 8×4 PUs are used. To reduce the memory bandwidth requirements for such smaller PUs, methods are provided for restricting inter-coded PUs of small block sizes to be coded only in a uni-predictive mode, i.e., forward prediction or backward prediction. More specifically, PUs of specified restricted sizes in bi-predicted slices (B slices) are forced to be uni-predicted.

    Abstract translation: 运动补偿需要大量的内存带宽，特别是对于较小的预测单元大小。 当使用双预测的4×8或8×4 PU时，可能会发生最差的带宽需求。 为了减少这种较小的PU的存储器带宽要求，提供了用于限制仅以单一预测模式即前向预测或后向预测编码的小块大小的帧间编码的PU的方法。 更具体地，强制在双预测切片（B切片）中指定的限制尺寸的PU被单独预测。

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