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    Gain calibration for an imaging system
    11.
    发明授权
    Gain calibration for an imaging system 有权

    公开(公告)号：US10128808B2

    公开(公告)日：2018-11-13

    申请号：US15455007

    申请日：2017-03-09

    Applicant: Seek Thermal, Inc.

    Inventor： Jason Wolfe ,  William J. Parrish ,  Ross Williams

    IPC: H03G3/30 ,  G01J5/22 ,  H04N5/365 ,  H04N5/33 ,  G01J1/18 ,  G01J5/34 ,  G01R27/26 ,  H01G7/00 ,  G01J5/00 ,  G01J1/44

    Abstract: An imaging system includes an array of photodetectors and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors. The electronic circuitry can include an integrator with an integrator capacitor having a nominal capacitance, wherein a gain of the electronic circuitry associated with a photodetector can depend at least in part on the actual capacitance of the integrator capacitor, the actual capacitance differing from the nominal capacitance. The imaging system can be configured to determine a gain factor that depends at least in part on the actual capacitance and/or a signal voltage input to the integrator. The imaging system can be configured to apply the gain factor based at least in part on the actual capacitance of the integrator capacitor calculated. The imaging system can be a thermal imaging system and may include an infrared camera core.

    PIXEL DECIMATION FOR AN IMAGING SYSTEM
    12.
    发明申请
    PIXEL DECIMATION FOR AN IMAGING SYSTEM 审中-公开

    公开(公告)号：US20170243326A1

    公开(公告)日：2017-08-24

    申请号：US15436626

    申请日：2017-02-17

    Applicant: Seek Thermal, Inc.

    Inventor： Jeffery Lee ,  Jason Wolfe

    IPC: G06T3/40 ,  G06T7/00 ,  H04N5/33

    CPC classification number: G06T3/4023 ,  H04N5/33

    Abstract: Imaging systems and methods are disclosed that use decimate image data to create smaller image frame size from the image size acquired from an imaging array. An imaging system includes an array of photodetectors configured to produce an array of intensity values corresponding to light intensity at the photodetectors. The imaging system can be configured to acquire a frame of intensity values, or an image frame, and reduce the size of the image frame for subsequent processing and display. The decimation process includes replacing a subframe or kernel of image date with few pixels than contained in the kernel, including replacing the pixels of the kernel with one decimated pixel. The decimated pixel values are derived from the pixels of the kernel and may also include replacement of bad pixels in the original image frame.

    Gain calibration for an imaging system
    13.
    发明授权
    Gain calibration for an imaging system 有权
    为成像系统增益校准

    公开(公告)号：US09595934B2

    公开(公告)日：2017-03-14

    申请号：US14829490

    申请日：2015-08-18

    Applicant: Seek Thermal, Inc.

    Inventor： Jason Wolfe ,  William J. Parrish ,  Ross Williams

    IPC: G01J5/22 ,  H03G3/30 ,  H04N5/365 ,  H04N5/33 ,  G01J1/18 ,  G01J5/00 ,  G01J1/44

    CPC classification number: H03G3/3084 ,  G01J1/18 ,  G01J1/44 ,  G01J5/22 ,  G01J5/34 ,  G01J2001/4406 ,  G01J2001/444 ,  G01J2005/0048 ,  G01J2005/0077 ,  G01R27/2605 ,  H01G7/00 ,  H04N5/33 ,  H04N5/3651 ,  H04N5/3655

    Abstract: An imaging system includes an array of photodetectors and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors. The electronic circuitry can include an integrator with an integrator capacitor having a nominal capacitance, wherein a gain of the electronic circuitry associated with a photodetector can depend at least in part on the actual capacitance of the integrator capacitor, the actual capacitance differing from the nominal capacitance. The imaging system can be configured to determine a gain factor that depends at least in part on the actual capacitance and/or a signal voltage input to the integrator. The imaging system can be configured to apply the gain factor based at least in part on the actual capacitance of the integrator capacitor calculated. The imaging system can be a thermal imaging system and may include an infrared camera core.

    Abstract translation: 成像系统包括与光电检测器相关联的光电检测器和电子电路的阵列，以从光电检测器读取强度值。 电子电路可以包括具有标称电容的积分器电容器的积分器，其中与光电检测器相关联的电子电路的增益至少部分取决于积分电容器的实际电容，实际电容不同于标称电容 。 成像系统可以被配置为确定至少部分地取决于输入到积分器的实际电容和/或信号电压的增益因子。 成像系统可以被配置为至少部分地基于所计算的积分电容器的实际电容来施加增益因子。 成像系统可以是热成像系统，并且可以包括红外相机芯。

    Adaptive adjustment of the operating bias of an imaging system
    14.
    发明授权
    Adaptive adjustment of the operating bias of an imaging system 有权
    自适应调整成像系统的工作偏差

    公开(公告)号：US09584750B2

    公开(公告)日：2017-02-28

    申请号：US14829500

    申请日：2015-08-18

    Applicant: Seek Thermal, Inc.

    Inventor： Jason Wolfe ,  Willliam J. Parrish

    IPC: H04N5/378 ,  H04N5/33 ,  H04N5/353 ,  H04N5/376 ,  G01J5/20 ,  G01J5/22 ,  H04N5/365

    CPC classification number: H04N5/378 ,  G01J1/0228 ,  G01J1/44 ,  G01J1/46 ,  G01J5/026 ,  G01J5/20 ,  G01J5/22 ,  G01J2001/444 ,  H04N5/33 ,  H04N5/353 ,  H04N5/3651 ,  H04N5/3655 ,  H04N5/3765

    Abstract: An imaging system includes a shutter, an array of photodetectors, and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors, the electronic circuitry including elements configured to provide an operating bias point of the photodetectors. The imaging system includes components, such as a controller, configured to adaptively adjust the operating bias for the photodetectors wherein the adjustment is based at least in part on intermittent measurement of a flat field image. During use, the imaging system can be configured to perform intermittent adjustments of the operating bias based on changes in photodetector values for intermittently acquired flat field images. Adjustment of the operating bias may provide compensation for drift over time of the photodetectors and/or electronics due to effects including but not limited to temperature changes.

    Abstract translation: 成像系统包括快门，光电检测器阵列以及与光电检测器相关联的电子电路以从光电检测器读取强度值，该电子电路包括被配置为提供光电检测器的操作偏置点的元件。 成像系统包括诸如控制器的组件，其被配置为自适应地调整光电探测器的操作偏压，其中调节至少部分地基于平坦场图像的间歇测量。 在使用期间，成像系统可以被配置为基于间歇获取的平场图像的光电检测器值的变化来执行对工作偏压的间歇性调整。 由于包括但不限于温度变化的影响，操作偏压的调整可以补偿光电检测器和/或电子器件随时间的漂移。

    DESIGN, TEST, AND OPERATION OF A SMALL THERMAL IMAGING CORE
    17.
    发明申请
    DESIGN, TEST, AND OPERATION OF A SMALL THERMAL IMAGING CORE 有权

    公开(公告)号：US20220260424A1

    公开(公告)日：2022-08-18

    申请号：US17661446

    申请日：2022-04-29

    Applicant: Seek Thermal, Inc.

    Inventor： William J. Parrish ,  Andreas Engberg ,  Jason Wolfe ,  Derek Moran ,  Blake Henry ,  Ross Williams ,  Russ Mead

    IPC: G01J5/02 ,  G01J5/0806 ,  G01J5/20 ,  H04N5/225

    Abstract: An ultra-small thermal imaging core, or micro-core. The design of the micro-core may include substrates for mounting optics and electronic connectors that are thermally matched to the imaging Focal Plane Array (FPA). Test fixtures for test and adjustment that allow for operation and image acquisition of multiple cores may also be provided. Tooling may be included to position the optics to set the core focus, either by moving the lens and lens holder as one or by pushing and/or pulling the lens against a lens positioning element within the lens holder, while observing a scene. Test procedures and fixtures that allow for full temperature calibration of each individual core, as well as providing data useful for uniformity correction during operation may also be included as part of the test and manufacture of the core.

    DESIGN, TEST, AND OPERATION OF A SMALL THERMAL IMAGING CORE
    18.
    发明申请
    DESIGN, TEST, AND OPERATION OF A SMALL THERMAL IMAGING CORE 审中-公开

    公开(公告)号：US20200217719A1

    公开(公告)日：2020-07-09

    申请号：US16623751

    申请日：2018-06-20

    Applicant: Seek Thermal, Inc.

    Inventor： William J. Parrish ,  Andreas Engberg ,  Jason Wolfe ,  Derek Moran ,  Blake Henry ,  Ross Williams ,  Russ Mead

    IPC: G01J5/02 ,  G01J5/08 ,  G01J5/20 ,  H04N5/225

    Abstract: An ultra-small thermal imaging core, or micro-core. The design of the micro-core may include substrates for mounting optics and electronic connectors that are thermally matched to the imaging Focal Plane Array (FPA). Test fixtures for test and adjustment that allow for operation and image acquisition of multiple cores may also be provided. Tooling may be included to position the optics to set the core focus, either by moving the lens and lens holder as one or by pushing and/or pulling the lens against a lens positioning element within the lens holder, while observing a scene. Test procedures and fixtures that allow for full temperature calibration of each individual core, as well as providing data useful for uniformity correction during operation may also be included as part of the test and manufacture of the core.

    TIME BASED OFFSET CORRECTION FOR IMAGING SYSTEMS AND ADAPTIVE CALIBRATION CONTROL
    19.
    发明申请
    TIME BASED OFFSET CORRECTION FOR IMAGING SYSTEMS AND ADAPTIVE CALIBRATION CONTROL 有权
    基于时间校正的成像系统校正和自适应校准控制

    公开(公告)号：US20160198102A1

    公开(公告)日：2016-07-07

    申请号：US15068405

    申请日：2016-03-11

    Applicant: Seek Thermal, Inc.

    Inventor： Romeo Chahine ,  William J. Parrish ,  Jeffery Lee ,  Ross Williams ,  Andreas Engberg ,  Jason Wolfe

    IPC: H04N5/33 ,  H04N5/353 ,  H04N5/365

    CPC classification number: H04N5/33 ,  H04N5/23241 ,  H04N5/2353 ,  H04N5/361 ,  H04N5/3651 ,  H04N5/3653 ,  H04N17/002

    Abstract: A method and an imaging system for adaptive shutter control wherein an imaging system can be configured to actuate a calibration element at various times and develop an offset correction or Non-Uniformity Correction (NUC). The system control processing units may acquire information derived from calibration data, regular imaging data or external data, which may be correlated with how fast the NUC is changing over time. How often calibration element is actuated may be adaptively determined from the correlating information and the actuation times may be adaptively controlled to optimally actuate as needed. In some embodiments the calibration element may be a shutter and calibration activation may include closing the shutter and providing a flat field image for calibration purposes.

    Abstract translation: 一种用于自适应快门控制的方法和成像系统，其中成像系统可以被配置为在不同时间致动校准元件，并且形成偏移校正或非均匀性校正（NUC）。 系统控制处理单元可以获取从校准数据，常规成像数据或外部数据导出的信息，其可以与NUC随时间变化的速度相关联。 校准元件被激活的频率可以根据相关信息自适应地确定，并且可以自适应地控制致动时间以根据需要最佳地起动。 在一些实施例中，校准元件可以是快门，并且校准激活可以包括关闭快门并提供用于校准目的的平坦场图像。

    Adaptive gain adjustment for histogram equalization in an imaging system
    20.
    发明授权
    Adaptive gain adjustment for histogram equalization in an imaging system 有权

    公开(公告)号：US11276152B2

    公开(公告)日：2022-03-15

    申请号：US16883871

    申请日：2020-05-26

    Applicant: Seek Thermal, Inc.

    Inventor： Jason Wolfe ,  Brian Nehring

    IPC: G06T5/40 ,  G06T5/00

    Abstract: Systems and methods may be provided that improve the application of Histogram Equalization (HE) transfer functions for converting image system source data to display compatible image frames. Histograms developed from source data may be measured and depending on their properties, the gain of the HE transfer function may be adaptively adjusted. In some embodiments the property measured is a histogram width.

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