Automobile defrosting test-used foreside windscreen area acquisition method under low temperature warehouse environment
A front windshield and low temperature bin technology, applied in image data processing, instruments, calculations, etc., can solve the problems of reduced test efficiency, inaccurate test data, large manual measurement errors, etc., to improve test efficiency, improve calculation accuracy, The effect of reducing manual operations
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[0049] In this embodiment, a method for obtaining the area of the windshield based on the defrosting test of the automobile in the low-temperature chamber environment is to collect the original image of the windshield based on the camera system, and to calibrate the original image of the windshield to obtain the coefficient k. Calculate the boundary coordinate points of the original image of the windshield based on the gray-scale transition rule of the car window frame, and obtain the actual area of the front windshield window. Specifically, as figure 1 As shown, proceed as follows:
[0050] Step 1. Cover the central area of the front windshield of the car with a circular dot matrix calibration plate; and use the camera to collect the original image A of the front windshield with the circular dot matrix calibration plate under the low temperature chamber;
[0051] Step 2, using formula (1) to obtain the calibration coefficient k:
[0052]
[0053] In formula (1), L ...
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