中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

133 records (took 0.022 seconds)

    INTRA BLOCK COPY (INTRABC) COST ESTIMATION
    11.
    发明申请
    INTRA BLOCK COPY (INTRABC) COST ESTIMATION 审中-公开

    公开(公告)号：US20200236397A1

    公开(公告)日：2020-07-23

    申请号：US16843315

    申请日：2020-04-08

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Do-Kyoung Kwon ,  Madhukar Budagavi

    IPC: H04N19/567

    Abstract: A method for encoding video data is provided that includes determining whether or not a parent coding unit of a coding unit of the video data was predicted in intra-prediction block copy (IntraBC) mode and, when it is determined that the parent coding unit was not predicted in IntraBC mode: computing activity of the coding unit, determining an IntraBC coding cost of the coding unit by computing the IntraBC coding cost of the coding unit using a two dimensional (2D) search when the activity of the coding unit is not than an activity threshold, and computing the IntraBC coding cost of the coding unit using a one dimensional (1D) search when the activity of the coding unit is less than the activity threshold, using the IntraBC coding cost to select an encoding mode from one of a plurality of encoding modes, encoding the coding unit using the selected encoding mode.

    SEMI-GLOBAL MATCHING (SGM) COST COMPRESSION
    12.
    发明申请
    SEMI-GLOBAL MATCHING (SGM) COST COMPRESSION 审中-公开

    公开(公告)号：US20200186801A1

    公开(公告)日：2020-06-11

    申请号：US16794551

    申请日：2020-02-19

    Applicant: Texas Instruments Incorporated

    Inventor： Do-Kyoung Kwon ,  Jing-Fei Ren ,  Darnell Moore

    IPC: H04N19/124 ,  H04N13/161 ,  H04N19/137 ,  H04N19/182 ,  G06T7/593

    Abstract: This disclosure describes techniques for performing semi-global matching (SGM) path cost compression. In some examples, the techniques may perform disparity-dependent sub-sampling of a set of SGM path costs where the sub-sampling ratio is determined based on a candidate disparity level. The sub-sampled SGM path costs may be stored in a memory. When retrieved from memory, the sub-sampled SGM path costs may be interpolated to reconstruct the other path costs not stored in the memory. The reconstructed path costs may be used for further SGM processing. In further examples, the techniques may perform disparity-dependent quantization on the SGM path costs or the sub-sampled SGM path costs, and store the quantized SGM path costs in memory. The techniques of this disclosure may reduce bandwidth as well as reduce the memory footprint needed to implement an SGM algorithm.

    Method and apparatus for SSIM-based bit allocation
    17.
    发明授权
    Method and apparatus for SSIM-based bit allocation 有权
    用于基于SSIM的比特分配的方法和装置

    公开(公告)号：US09369703B2

    公开(公告)日：2016-06-14

    申请号：US13632392

    申请日：2012-10-01

    Applicant: Texas Instruments Incorporated

    Inventor： Do-Kyoung Kwon ,  Hyungjoon Kim

    IPC: H04N19/154 ,  H04N19/172 ,  H04N19/115 ,  H04N19/194

    CPC classification number: H04N19/154 ,  H04N19/115 ,  H04N19/172 ,  H04N19/194

    Abstract: A method and an encoder for SSIM-based bits allocation. The encoder includes a memory and a processor utilized for allocating bits based on SSIM, wherein the processor estimates the model parameter of SSIM-based distortion model for the current picture and determines allocates bits based on the SSIM estimation.

    Abstract translation: 一种用于基于SSIM的比特分配的方法和编码器。 编码器包括存储器和用于基于SSIM分配比特的处理器，其中处理器估计当前图像的基于SSIM的失真模型的模型参数，并且基于SSIM估计确定分配比特。

    Method and Apparatus for Sample Adaptive Offset Without Sign Coding
    18.
    发明申请
    Method and Apparatus for Sample Adaptive Offset Without Sign Coding 有权
    无符号编码的样本自适应偏移的方法和装置

    公开(公告)号：US20130308696A1

    公开(公告)日：2013-11-21

    申请号：US13671670

    申请日：2012-11-08

    Applicant: Texas Instruments Incorporated

    Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon

    IPC: H04N7/26

    CPC classification number: H04N19/91 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/80 ,  H04N19/82

    Abstract: A method and apparatus for sample adaptive offset without sign coding. The method includes selecting an edge offset type for at least a portion of an image, classifying at least one pixel of at least the portion of the image into edge shape category, calculating an offset of the pixel, determining the offset is larger or smaller than a predetermined threshold, changing a sign of the offset based on the threshold determination; and performing entropy coding accounting for the sign of the offset and the value of the offset.

    Abstract translation: 一种无符号编码的样本自适应偏移的方法和装置。 该方法包括为图像的至少一部分选择边缘偏移类型，将图像的至少部分的至少一个像素分类为边缘形状类别，计算像素的偏移，确定偏移大于或小于 预定阈值，基于所述阈值确定改变所述偏移的符号; 并执行熵编码计算偏移的符号和偏移的值。

    Sample Adaptive Offset (SAO) Parameter Signaling
    19.
    发明申请
    Sample Adaptive Offset (SAO) Parameter Signaling 有权
    采样自适应偏移（SAO）参数信号

    公开(公告)号：US20130223542A1

    公开(公告)日：2013-08-29

    申请号：US13775064

    申请日：2013-02-22

    Applicant: Texas Instruments Incorporated

    Inventor： Woo-Shik Kim ,  Do-Kyoung Kwon ,  Minhua Zhou

    IPC: H04N7/26

    CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/186 ,  H04N19/463 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/91

    Abstract: Techniques for signaling of sample adaptive offset (SAO) information that may reduce the coding rate for signaling such information in the compressed bit stream are provided. More specifically, techniques are provided that allow SAO information common to two or more of the color components to be signaled using one or more syntax elements (flags or indicators) representative of the common information. These techniques reduce the need to signal SAO information separately for each color component.

    Abstract translation: 提供了可以降低用于在压缩比​​特流中发送信令的编码率的采样自适应偏移（SAO）信息的信令技术。 更具体地，提供了允许使用表示公共信息的一个或多个语法元素（标志或指示符）来向两个或多个颜色分量公共的SAO信息进行信令的技术。 这些技术减少了为每个颜色分量分别发出信号SAO信息的需要。

    Calibration of a surround view camera system
    20.
    发明授权
    Calibration of a surround view camera system 有权

    公开(公告)号：US12250366B2

    公开(公告)日：2025-03-11

    申请号：US18387206

    申请日：2023-11-06

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Sujith Shivalingappa ,  Vikram Appia ,  Anand Yalgurdrao Kulkarni ,  Do-Kyoung Kwon

    IPC: H04N17/00 ,  B60R1/27 ,  G06V10/10 ,  G06V10/24 ,  G06V20/56 ,  H04N7/18

    Abstract: A method for automatic generation of calibration parameters for a surround view (SV) camera system is provided that includes capturing a video stream from each camera comprised in the SV camera system, wherein each video stream captures two calibration charts in a field of view of the camera generating the video stream; displaying the video streams in a calibration screen on a display device coupled to the SV camera system, wherein a bounding box is overlaid on each calibration chart, detecting feature points of the calibration charts, displaying the video streams in the calibration screen with the bounding box overlaid on each calibration chart and detected features points overlaid on respective calibration charts, computing calibration parameters based on the feature points and platform dependent parameters comprising data regarding size and placement of the calibration charts, and storing the calibration parameters in the SV camera system.

Patent Agency Ranking