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    ADAPTIVE LIGHT SOURCE WITH SPATIAL LIGHT MODULATOR
    71.
    发明申请
    ADAPTIVE LIGHT SOURCE WITH SPATIAL LIGHT MODULATOR 有权

    公开(公告)号：US20230058323A1

    公开(公告)日：2023-02-23

    申请号：US17849472

    申请日：2022-06-24

    Applicant: Texas Instruments Incorporated

    Inventor： Zhongyan Sheng ,  Shashank Dabral ,  Ganapathy Sivakumar

    IPC: F21S41/63 ,  F21S41/25 ,  F21S41/153 ,  F21V23/04

    Abstract: An example includes a system, having: an illumination source configured to produce illumination light; and a spatial light modulator (SLM) optically coupled to the illumination source, the SLM comprising an array of picture elements. The SLM is configured to: receive the illumination light; direct, by a first portion of the picture elements, on state light in a first direction; and direct, by a second portion of the picture elements, off state light in a second direction. The example system includes imaging optics optically coupled to the SLM, the imaging optics configured to receive the on state light from the SLM and to project an image as an image portion of a beam; and non-imaging optics optically coupled to the SLM, the non-imaging optics configured to receive the off state light from the SLM and to project the off state light as part of the beam.

    Efficient and flexible color processor
    75.
    发明授权
    Efficient and flexible color processor 有权

    公开(公告)号：US11172172B2

    公开(公告)日：2021-11-09

    申请号：US15395001

    申请日：2016-12-30

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Mihir Narendra Mody ,  Shashank Dabral ,  Rajasekhar Allu ,  Niraj Nandan

    IPC: H04N9/04 ,  G06T1/20 ,  H04N9/67

    Abstract: An image signal processor includes a first matrix processing circuit, a post processing circuit, a second matrix processing circuit, and a split visual and analytics circuit. The first matrix processing circuit is configured to receive a plurality of component images generated based on an image captured by an image sensor and generate a plurality of first matrix outputs based on the plurality of component images. The post processing circuit is configured to perform color conversion on the plurality of first matrix outputs to generate a first luminance component of the image and a chrominance component of the image. The second matrix processing circuit is configured to perform color conversion on the plurality of first matrix outputs to generate a second luminance component of the image and a saturation component of the image. The split visual and analytics circuit is configured to generate visual and analytic data of the image.

    IMAGE DATA PROCESSING FOR DIGITAL OVERLAP WIDE DYNAMIC RANGE SENSORS
    76.
    发明申请
    IMAGE DATA PROCESSING FOR DIGITAL OVERLAP WIDE DYNAMIC RANGE SENSORS 有权

    公开(公告)号：US20210160418A1

    公开(公告)日：2021-05-27

    申请号：US17168224

    申请日：2021-02-05

    Applicant: Texas Instruments Incorporated

    Inventor： Shashank Dabral

    IPC: H04N5/235 ,  H04N5/77 ,  H04N5/232

    Abstract: Methods and integrated circuits to process image data from single or multiple digital overlap (DOL) wide dynamic range (WDR) sensors, in which first received pixel data associated with a first exposure of a sensor image is stored in a DDR memory circuit, second received pixel data associated with a second exposure of the image is stored in the first buffer, third received pixel data associated with a third exposure of the image is stored in a second buffer, and fourth received pixel data associated with a fourth exposure of the image is provided to a merge circuit, and merged pixel data is stored in a dynamically partitioned line buffer for processing by an image pipeline circuit to facilitate interfacing multiple DOL WDR sensors in an interleaved fashion.

    Adaptive bilateral (BL) filtering for computer vision
    77.
    发明授权
    Adaptive bilateral (BL) filtering for computer vision 有权

    公开(公告)号：US10891717B2

    公开(公告)日：2021-01-12

    申请号：US16178200

    申请日：2018-11-01

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Mihir Narendra Mody ,  Shashank Dabral ,  Jesse Gregory Villarreal, Jr. ,  William Wallace ,  Niraj Nandan

    IPC: G06K9/00 ,  G06T5/00 ,  G06T5/20 ,  G06K9/46

    Abstract: A method for filtering noise for imaging includes receiving an image frame having position and range data. A filter size divides the frame into filter windows for processing each of the filter windows. For the first pixel, a space to the center pixel and a range difference between this pixel and the center pixel is determined and used for choosing a selected weight from weights in a 2D weight LUT including weighting for space and range difference, a filtered range value is calculated by applying the selected 2D weight to the pixel, and the range, filtered range value and selected 2D weight are summed. The determining, choosing, calculating and summing are repeated for at least the second pixel. A total sum of contributions from the first and second pixel are divided by the sum of selected 2D weights to generate a final filtered range value for the center pixel.

    Universal and adaptive de-mosaicing (CFA) system
    78.
    发明授权
    Universal and adaptive de-mosaicing (CFA) system 有权

    公开(公告)号：US10366471B2

    公开(公告)日：2019-07-30

    申请号：US15349609

    申请日：2016-11-11

    Applicant: TEXAS INSTRUMENTS INCORPORATED

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

    IPC: G06T3/40 ,  H04N9/04

    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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