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    METHOD AND SYSTEM FOR VIDEO PICTURE INTRA-PREDICTION ESTIMATION
    14.
    发明申请
    METHOD AND SYSTEM FOR VIDEO PICTURE INTRA-PREDICTION ESTIMATION 审中-公开

    公开(公告)号：US20200221083A1

    公开(公告)日：2020-07-09

    申请号：US16813983

    申请日：2020-03-10

    Applicant: Texas Instruments Incorporated

    Inventor： Ranga Ramanujam Srinivasan ,  Hyung Joon Kim ,  Akira Osamoto

    IPC: H04N19/11 ,  H04N19/61 ,  H04N19/176 ,  H04N19/136 ,  H04N19/593 ,  H04N19/33 ,  H04N19/174 ,  H04N19/157 ,  H04N19/147 ,  H04N19/119

    Abstract: Several systems and methods for intra-prediction estimation of video pictures are disclosed. In an embodiment, the method includes accessing four ‘N×N’ pixel blocks comprising luma-related pixels. The four ‘N×N’ pixel blocks collectively configure a ‘2N×2N’ pixel block. A first pre-determined number of candidate luma intra-prediction modes is accessed for each of the four ‘N×N’ pixel blocks. A presence of one or more luma intra-prediction modes that are common among the candidate luma intra-prediction modes of at least two of the four ‘N×N’ pixel blocks is identified. The method further includes performing, based on the identification, one of (1) selecting a principal luma intra-prediction mode for the ‘2N×2N’ pixel block and (2) limiting a partitioning size to a ‘N×N’ pixel block size for a portion of the video picture corresponding to the ‘2N×2N’ pixel block.

    Fast Intra-Prediction Mode Selection in Video Coding
    15.
    发明申请
    Fast Intra-Prediction Mode Selection in Video Coding 审中-公开
    视频编码中快速预测模式选择

    公开(公告)号：US20140050263A1

    公开(公告)日：2014-02-20

    申请号：US13958593

    申请日：2013-08-04

    Applicant: Texas Instruments Incorporated

    Inventor： Hyung Joon Kim

    IPC: H04N7/34

    Abstract: A method for determining intra-prediction modes for prediction units (PUs) of a largest coding unit (LCU) is provided that includes determining an inter-prediction mode for each child PU of a PU, and selecting an intra-prediction mode for the PU based on the intra-prediction modes determined for the child PUs.

    Abstract translation: 提供一种用于确定最大编码单元（LCU）的预测单元（PU）的帧内预测模式的方法，其包括：确定PU的每个子PU的帧间预测模式，并且选择PU的帧内预测模式 基于针对儿童PU确定的帧内预测模式。

    Adaptive coding unit (CU) partitioning based on image statistics
    16.
    发明授权
    Adaptive coding unit (CU) partitioning based on image statistics 有权

    公开(公告)号：US11695939B2

    公开(公告)日：2023-07-04

    申请号：US17499301

    申请日：2021-10-12

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Hyung Joon Kim

    IPC: H04N19/176 ,  H04N19/14 ,  H04N19/119

    CPC classification number: H04N19/176 ,  H04N19/119 ,  H04N19/14

    Abstract: A method for determining coding unit (CU) partitioning of a largest coding unit (LCU) of a picture is provided that includes computing a first statistical measure and a second statistical measure for the LCU, selecting the LCU as the CU partitioning when the first statistical measure does not exceed a first threshold and the second statistical measure does not exceed a second threshold, and selecting CUs in one or more lower layers of a CU hierarchy of the LCU to form the CU partitioning when the first statistical measure exceeds the first threshold and/or the second statistical measure exceeds the second threshold.

    Method and system for video picture intra-prediction estimation
    19.
    发明授权
    Method and system for video picture intra-prediction estimation 有权

    公开(公告)号：US11381813B2

    公开(公告)日：2022-07-05

    申请号：US16813983

    申请日：2020-03-10

    Applicant: Texas Instruments Incorporated

    Inventor： Ranga Ramanujam Srinivasan ,  Hyung Joon Kim ,  Akira Osamoto

    IPC: H04N19/33 ,  H04N19/176 ,  H04N19/11 ,  H04N19/119 ,  H04N19/147 ,  H04N19/157 ,  H04N19/174 ,  H04N19/593 ,  H04N19/136 ,  H04N19/61

    Abstract: Several systems and methods for intra-prediction estimation of video pictures are disclosed. In an embodiment, the method includes accessing four ‘N×N’ pixel blocks comprising luma-related pixels. The four ‘N×N’ pixel blocks collectively configure a ‘2N×2N’ pixel block. A first pre-determined number of candidate luma intra-prediction modes is accessed for each of the four ‘N×N’ pixel blocks. A presence of one or more luma intra-prediction modes that are common among the candidate luma intra-prediction modes of at least two of the four ‘N×N’ pixel blocks is identified. The method further includes performing, based on the identification, one of (1) selecting a principal luma intra-prediction mode for the ‘2N×2N’ pixel block and (2) limiting a partitioning size to a ‘N×N’ pixel block size for a portion of the video picture corresponding to the ‘2N×2N’ pixel block.

    FAST MOTION ESTIMATION FOR HIERARCHICAL CODING STRUCTURES
    20.
    发明申请
    FAST MOTION ESTIMATION FOR HIERARCHICAL CODING STRUCTURES 有权

    公开(公告)号：US20220116604A1

    公开(公告)日：2022-04-14

    申请号：US17560703

    申请日：2021-12-23

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Hyung Joon Kim ,  Minhua Zhou ,  Akira Osamoto ,  Hideo Tamama

    IPC: H04N19/119 ,  H04N19/107 ,  H04N19/147 ,  H04N19/169 ,  H04N19/52

    Abstract: A method for motion estimation is provided that includes determining a first motion vector for a first child coding unit (CU) of a parent CU and a second motion vector for a second child CU of the parent CU, wherein the first child CU, the second child CU, and the parent CU are in a CU hierarchy, wherein the first and second child CUs are smallest size CUs in the CU hierarchy, and wherein a first motion search type is used to determine the first motion vector and the second motion vector, selecting the first and second motion vectors as candidate predictors for the parent CU, selecting a predictor for a prediction unit (PU) of the first parent CU from the candidate predictors, and refining the predictor using a second motion search type to determine a motion vector for the PU.

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