An automatic reading method for a multi-dial pointer instrument
An automatic reading, pointer technology, applied in the direction of instruments, image data processing, character and pattern recognition, etc., can solve the problems of reading accuracy vulnerable to the working environment, poor robust performance, and heavy manual reading workload, saving images. The effect of collecting time and storage space, improving the accuracy of automatic reading, and improving the efficiency of image recognition
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[0052] In order to better understand the present invention, the technical scheme of the present invention will be further described below in conjunction with accompanying drawing:
[0053] Here we take the automatic reading of a pointer instrument with two dials on the left and right as an example to illustrate, let the dial on the right be dial 1, and the dial on the left be dial 2; figure 1 Shown, the present invention comprises the following steps:
[0054] A. Using the architecture of VS2012+OpenCV, establish the reference image of the two dials included in the pointer instrument F bi , i=1,2;
[0055] Reference image F bi The establishment includes the following steps:
[0056] A1. Adjust the pointers of the two dials in the pointer instrument to the zero scale position, such as figure 1 As shown, the camera is used to collect the image of the pointer instrument at this time and save it in JPEG format;
[0057] A2, carry out grayscale and binarization processing to t...
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