Accurate part positioning method based on binocular microscopy stereo vision

Abstract

The invention discloses an accurate part positioning method based on binocular microscopy stereo vision, which belongs to the technical field of computer visual measuring and relates to an accurate precision part positioning method based on the binocular microscopy stereo vision. A binocular microscopy stereo vision system is adopted, two CCD (charge coupled device) cameras are adopted to acquire the images of the measured parts, the image information in the to-be-measured area on the measured part is amplified by a stereo microscope, a checkerboard calibrating board is adopted to calibrate the two CCD cameras, and a Harris corner point detecting algorithm and a sub-pixel extracting algorithm are adopted to extract feature points. The extracted feature points are subjected to the primary matching and correcting of matching point pairs, and the feature point image coordinates are inputted to a calibrated system to obtain the space actual coordinates of the feature points. The accurate part positioning method based on the binocular microscopy stereo vision solves the measuring difficult problems generated by the small size of the to-be-measured area, high positioning demand, non-contact and the like. The accurate positioning of the precision part is well finished by adopting the non-contact measuring method of the binocular microscopy stereo vision.

Description

Technical field [0001] The invention belongs to the technical field of computer vision measurement, and particularly relates to a precise positioning method of precision parts based on binocular microscopic stereo vision. Background technique [0002] The binocular stereo vision technology has the ability to obtain the depth information of the object to be measured by simulating the processing method of the human eyes, and then can obtain the spatial position information of the object to be measured. At the same time, it has the advantages of non-destructive measurement and real-time measurement. It has a wide range of applications. The binocular microscope stereo vision technology is based on the binocular stereo vision technology and the stereo microscope technology. The two optical paths of the stereo microscope are captured by the left and right CCD cameras, and the captured images are measured by the same binocular vision. The similar angle difference can realize the three-...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defects of the prior art, to invent a precise positioning method for precision parts based on binocular microscopic stereo vision, and to solve the problems of small target area to be measured, high positioning accuracy requirements, and non-contact Measurement challenges that arise

Using binocular microscopic stereo vision to achieve precise positioning of precision parts has broadened the application range of the traditional spatial positioning method based on binocular stereo vision, and improved the accuracy of measurement, solving the problem of small parts to be tested and positioning accuracy. Demanding, hard-to-measure problems

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