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    Universal and adaptive de-mosaicing (CFA) system
    11.
    发明授权
    Universal and adaptive de-mosaicing (CFA) system 有权

    公开(公告)号：US11463664B2

    公开(公告)日：2022-10-04

    申请号：US16911579

    申请日：2020-06-25

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Shashank Dabral ,  Mihir Narendra Mody ,  Denis Beaudoin ,  Niraj Nandan ,  Gang Hua

    IPC: H04N9/04 ,  G06T3/40 ,  G06T5/00

    Abstract: A method of de-mosaicing pixel data from an image processor includes generating a pixel block that includes a plurality of image pixels. The method also includes determining a first image gradient between a first set of pixels of the pixel block and a second image gradient between a second set of pixels of the pixel block. The method also includes determining a first adaptive threshold value based on intensity of a third set of pixels of the pixel block. The pixels of the third set of pixels are adjacent to one another. The method also includes filtering the pixel block in a vertical, horizontal, or neutral direction based on the first and second image gradients and the first adaptive threshold value utilizing a plurality of FIR filters to generate a plurality of component images.

    System and method for transferring non-video data over a video interface
    14.
    发明授权
    System and method for transferring non-video data over a video interface 有权
    通过视频接口传输非视频数据的系统和方法

    公开(公告)号：US09197905B2

    公开(公告)日：2015-11-24

    申请号：US13632636

    申请日：2012-10-01

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Jian Wang ,  Thanh Thien Tran ,  Gang Hua ,  Ivan Garcia

    IPC: H04N19/40 ,  H04N19/88 ,  H04N19/46 ,  H04N19/186

    CPC classification number: H04N19/88 ,  H04N19/186 ,  H04N19/40 ,  H04N19/46

    Abstract: A video system includes a first video device. The first video device includes a video output port and an arbitrary data scrambler. The first video device transmits a video stream through the video output port. The video output port is configured to insert video timing reference values into the video stream. The arbitrary data scrambler is configured to scramble non-video data for transmission in the video stream such that unscrambled non-video data containing video timing reference values is transformed, without information loss, to scrambled non-video data containing no video timing reference values.

    Abstract translation: 视频系统包括第一视频设备。 第一视频设备包括视频输出端口和任意数据加扰器。 第一视频设备通过视频输出端口发送视频流。 视频输出端口被配置为将视频定时参考值插入到视频流中。 任意数据扰频器被配置为对非视频数据进行扰频，以便在视频流中进行传输，使得包含视频定时参考值的未加扰的非视频数据在没有信息丢失的情况下被变换到不包含视频定时参考值的加扰的非视频数据。

    Suppression of clipping artifacts from color conversion
    15.
    发明授权
    Suppression of clipping artifacts from color conversion 有权

    公开(公告)号：US12131504B2

    公开(公告)日：2024-10-29

    申请号：US17538268

    申请日：2021-11-30

    Applicant: Texas Instruments Incorporated

    Inventor： Gang Hua ,  Mihir Narendra Mody ,  Niraj Nandan ,  Shashank Dabral ,  Rajasekhar Reddy Allu ,  Denis Roland Beaudoin

    IPC: G06K9/00 ,  G06T1/20 ,  G06T7/90

    CPC classification number: G06T7/90 ,  G06T1/20 ,  G06T2207/10024 ,  G06T2207/20208

    Abstract: Techniques for image processing including receiving input image data, wherein the input image data includes data associated with a clear color channel, receiving a color offset value associated with a color channel, wherein color values for the color channel are not provided in the input image data, based on the color offset value, generating intermediate estimated color values for the color channel, wherein generating the intermediate estimated color values includes: clipping color values that have a magnitude greater than the color offset value, and adjusting color values that have a magnitude less than the color offset value based on the color offset value, applying a color correction function to the intermediate estimated color values based on the color offset value to determine color corrected estimated color values, and outputting the color corrected estimated color values.

    Method and Apparatus for Automatic Exposure
    17.
    发明申请
    Method and Apparatus for Automatic Exposure 有权

    公开(公告)号：US20230100077A1

    公开(公告)日：2023-03-30

    申请号：US17491382

    申请日：2021-09-30

    Applicant: Texas Instruments Incorporated

    Inventor： Gunawath Dilshan Godaliyadda ,  Mayank Mangla ,  Gang Hua

    IPC: H04N5/235

    Abstract: A method for automatic exposure (AE) control is provided that includes receiving statistics for AE control for an image from an image signal processor (ISP) coupled to an image sensor generating the image, computing an exposure value at a current time t (EV(t)) using a cost function based on target characteristics of an image, wherein computation of the cost function uses the statistics, and computing AE settings for the image sensor based on EV(t).

    Multi camera image processing
    19.
    发明授权
    Multi camera image processing 有权

    公开(公告)号：US11057573B2

    公开(公告)日：2021-07-06

    申请号：US16226085

    申请日：2018-12-19

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Shashank Dabral ,  Gang Hua ,  Mayank Mangla

    IPC: H04N5/265 ,  H04N5/247 ,  G06T7/80 ,  H04N5/235 ,  H04N5/268 ,  G06T7/90 ,  H04N5/232 ,  H04N9/04 ,  H04N5/225

    Abstract: A system on a chip (SoC) implementing dynamic grouping of multiple cameras in an image processing system is disclosed. The SoC includes an image signal processor (ISP) configured to receive a signal corresponding to an image from two or more cameras, dynamically group the cameras into groups based on a measured view brightness and/or color temperature observed by each of the cameras, and assign cameras with a group of the groups to a same exposure/gain setting. The SoC further includes a statistics engine configured to receive the image signals and statistics related to the image signals from the ISP and determine a measurement of image brightness and/or color temperature of each image based on the image signals for forwarding to the ISP.

    Universal and adaptive de-mosaicing (CFA) system
    20.
    发明授权
    Universal and adaptive de-mosaicing (CFA) system 有权

    公开(公告)号：US10735700B2

    公开(公告)日：2020-08-04

    申请号：US16438876

    申请日：2019-06-12

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Shashank Dabral ,  Mihir Narendra Mody ,  Denis Beaudoin ,  Niraj Nandan ,  Gang Hua

    IPC: H04N9/04 ,  G06T3/40 ,  G06T5/00

    Abstract: A method of de-mosaicing pixel data from an image processor includes generating a pixel block that includes a plurality of image pixels. The method also includes determining a first image gradient between a first set of pixels of the pixel block and a second image gradient between a second set of pixels of the pixel block. The method also includes determining a first adaptive threshold value based on intensity of a third set of pixels of the pixel block. The pixels of the third set of pixels are adjacent to one another. The method also includes filtering the pixel block in a vertical, horizontal, or neutral direction based on the first and second image gradients and the first adaptive threshold value utilizing a plurality of FIR filters to generate a plurality of component images.

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