A method of correcting the deviation of cutting materials based on ccd image processing

Abstract

A kind of cutting material correction method based on CCD image processing comprises the following steps: 1), search and determine the first Mark point position on the material to be cut; 2), after searching for the first Mark point position, detect by circle The algorithm uses the method of three-point fixed circle to carry out preliminary screening of arc-like edge chains to eliminate the arc-like edge chains caused by noise interference; The circle parameter of the arc edge chain determines the center coordinates of the Mark point of the first circle. Then determine the center coordinates of another Mark point by the geometric relationship and repeat the second step; 3), finally obtain the corresponding transformation matrix through affine transformation, and obtain the final actual cutting coordinates. The invention effectively improves the speed of circular mark point positioning, has stable performance, strong anti-interference ability and high positioning accuracy, and can make the cutting bed control system work more efficiently.

Description

technical field [0001] The invention designs a method for correcting deviation of cut materials by image processing, in particular a method for correcting deviation of cut materials based on CCD image processing, which belongs to the field of image processing. Background technique [0002] In recent years, more and more CNC cutting machines have been used in the clothing, shoemaking, luggage and leather industries to improve production efficiency and reduce production costs. However, most of the existing cutting beds do not have image processing capabilities, and cannot carry out deviation correction processing on cutting materials. When the cutting material is not aligned with the bed body of the cutting bed, and in the process of cutting the material on the cutting bed, due to the cutting error of the cutting bed itself, the cumulative error of the cutting bed is getting larger and larger when cutting the material, and the cutting The materials are not up to standard, res...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the cumbersome and inaccurate correction process of the existing CNC cutting machine when the cutting material is placed tilted, the present invention provides a method for positioning Mark points through CCD image processing, which can effectively improve the CNC cutting machine when the cutting material is placed tilted. When the time, the material is corrected quickly and accurately

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