Wave height measuring method based on monocular vision laser triangulation method
A technology of laser triangulation and monocular vision, which is applied in the directions of line-of-sight measurement, distance measurement, and measurement devices, which can solve problems such as being easily affected by environmental factors such as water temperature, and achieve fast measurement speed, real-time measurement, and wide measurement environment Effect
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[0076] The hardware equipment used in this embodiment includes a laser (light source), a CCD camera (image acquisition), and an ARM development board (image processing). Such as figure 1 As shown, the laser emits laser light on the water surface, the camera is connected to the ARM development board, and the collected image is transmitted to the ARM board, and the ARM board performs a series of grayscale, binarization, and Hough change line detection on the image. Processing to obtain the pixel position corresponding to the intersection point of the laser light and the water surface, and quickly obtain the wave height value at this time according to the calibrated image point coordinates and the wave height relationship curve, the specific steps are:
[0077] When measuring wave height, it is necessary to calibrate the relationship curve between image point coordinates and wave height. The relative position of the laser light source and the CCD camera is fixed, the laser light...
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