A non-uniformity correction method for a maskless infrared thermal imager
A non-uniformity correction, infrared thermal imaging camera technology, applied in the direction of instruments, image enhancement, scientific instruments, etc., can solve the problems of not considering the influence of the output response of the infrared detector, not solving the nonlinearity of the infrared detector, etc., to achieve increased Quantity, precision of results, effect of resolving non-uniformities
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[0047] A non-uniformity correction method for a maskless infrared thermal imager, the specific method steps are as follows:
[0048] A 336×256-pixel uncooled vanadium oxide thermal imaging camera was used to collect infrared images with a frame rate of 25 frames per second.
[0049] First, place the infrared thermal imaging camera in a temperature-controllable environment, divide the temperature into 20 intervals according to the working temperature range of the detector, adjust the ambient temperature so that it is at an end point of the temperature interval, and wait for the detector to work stably. The temperature is convenient for the ambient temperature to be the same, and the detector base temperature is correspondingly divided into 20 intervals. Then, let the thermal imager shoot a uniform object with variable temperature (such as a black body), change the temperature of the black body, and the output response value of the detector will also change accordingly. By adjus...
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