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    System and method for IR subtraction in an RGB-IR Image sensor using FPGA
    2.
    发明公开
    System and method for IR subtraction in an RGB-IR Image sensor using FPGA 审中-公开

    公开(公告)号：US20240298093A1

    公开(公告)日：2024-09-05

    申请号：US18116347

    申请日：2023-03-02

    申请人： e-con Systems India Private Limited

    发明人： Arun Asokan ,  Ramesh Ponmuthu

    IPC分类号： H04N23/84 ,  G06T7/90 ,  H04N23/11

    CPC分类号： H04N23/84 ,  G06T7/90 ,  H04N23/11 ,  G06T2207/10024 ,  G06T2207/10048

    摘要： A method and system to produce an enhanced color image of Bayer 2×2 pixel pattern, and IR image, from 4×4 pixel initial color pattern containing separate R, G, B, and infra-red (IR) light pixels, the method predicting color and IR replacement pixels, determining calibrated IR contents, providing enhanced color R, G, B, and replacement B pixels by subtracting the calibrated IR contents from each of the R, G and B pixels, and constituting the enhanced color image of Bayer 2×2 pixel RGGB pattern from said enhanced color R, G, and B pixels; the system comprising an RGB IR camera with a dual pass filter permitting visible light and infra-red light as separate R, G, B and IR pixels, an integrated circuit device configured to predict pixels, convert 4×4 pixel patterns to 2×2 Bayer color patterns and IR patterns, wherein the integrated circuit device is a field programmable gate array.

    Image processing method, and spectral camera system
    5.
    发明授权
    Image processing method, and spectral camera system 有权

    公开(公告)号：US12039761B2

    公开(公告)日：2024-07-16

    申请号：US18050720

    申请日：2022-10-28

    申请人： SEIKO EPSON CORPORATION

    发明人： Kei Kudo ,  Teruyuki Nishimura

    IPC分类号： G06T7/90 ,  G01J3/28 ,  H04N23/84

    CPC分类号： G06T7/90 ,  G01J3/2823 ,  H04N23/84 ,  G01J2003/283 ,  G06T2207/10024

    摘要： An image processing method of converting spectral image data of a plurality of spectral wavelengths imaged by a spectral camera into a color image by using a processor, wherein the processor acquires a plurality of pieces of the spectral image data from a storage unit, calculates a correction value by multiplying a optical spectrum of each pixel of a corresponding one of the plurality of spectral image data by a correction constant set for each wavelength, calculates a color conversion value by summing the correction values of the same pixel positions, and generates a color composite image based on the color conversion value. Then, the correction constant is set such that a sum spectrum obtained by summing characteristic spectra obtained by multiplying a sensitivity characteristic with respect to each spectral wavelength of the spectral camera by the correction constant corresponding to each wavelength matches a target spectrum of any color filter.

    IMAGE CORRECTION USING ONE-DIMENSIONAL CORRECTION FACTORS
    9.
    发明公开
    IMAGE CORRECTION USING ONE-DIMENSIONAL CORRECTION FACTORS 审中-公开

    公开(公告)号：US20240163569A1

    公开(公告)日：2024-05-16

    申请号：US18326404

    申请日：2023-05-31

    申请人： QUALCOMM Incorporated

    发明人： Xiaoyun Jiang ,  Jing Wang ,  Hyung Cook Kim

    IPC分类号： H04N23/76 ,  H04N23/84

    CPC分类号： H04N23/76 ,  H04N23/84

    摘要： This disclosure provides systems, methods, and devices for image signal processing that support image correction, including lens shading correction (LSC). In a first aspect, a method of image processing includes receiving first image data comprising a first image frame from a camera module; receiving one-dimensional lens shading correction (LSC) factors; and determining an output image frame based on the first image frame by: interpolating a plurality of correction values corresponding to two-dimensional locations of the first image frame by interpolating the one-dimensional lens shading correction (LSC) factors; and applying the plurality of correction values to corresponding locations of the first image frame, wherein applying the plurality of correction values corrects a lens shading effect of the camera module. Other aspects and features are also claimed and described.