NOISE REDUCTION AND FEATURE ENHANCEMENT FOR A THERMAL IMAGING CAMERA

    公开(公告)号:US20230410262A1

    公开(公告)日:2023-12-21

    申请号:US18337219

    申请日:2023-06-19

    Abstract: Thermal cameras, particularly less elaborate inexpensive designs, may deliver high temperature resolution at the expense of less clear displayed images. For many low visibility uses, such as firefighting, it may be advantageous to sacrifice some temperature detail for clarity and object recognition. Without sacrificing the actual detailed temperature information available in a captured scene, it may be beneficial to apply filters in series to raw image data that reduce visible noise and build back in feature contrast for the purposes of providing a user a displayed image that permits ease of object recognition, while still providing the raw data to a thermography module to maintain high resolution of temperature information if desired. In addition, more efficient and useful edge highlighting techniques are disclosed. For very low contrast scenes, such as smoky rooms and the like, other specific filters and equalization methods may be applied.

    Adaptive gain adjustment for histogram equalization in an imaging system

    公开(公告)号:US11276152B2

    公开(公告)日:2022-03-15

    申请号:US16883871

    申请日:2020-05-26

    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.

    ADAPTIVE GAIN ADJUSTMENT FOR HISTOGRAM EQUALIZATION IN AN IMAGING SYSTEM

    公开(公告)号:US20200380651A1

    公开(公告)日:2020-12-03

    申请号:US16883871

    申请日:2020-05-26

    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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