Automatic two-dimensional irregular leather sample layout and cutting method

Abstract

The invention relates to an automatic two-dimensional irregular leather sample layout and cutting method, which includes the following steps of calibrating a full-frame CCD (charge coupled device) imaging system, labeling defect spots and regional quality of leather, acquiring two-dimensional image signals of the leather by the full-frame CCD imaging system and sending the same to an upper computer, eliminating introduced noise of acquired leather images during imaging by the upper computer, geometrically correcting the leather images imaged at one step, and accordingly acquiring distortionless and clear leather images; realizing automatic sample layout on the leather images according to prestored shape, size and amount of clothes style modular images in a computer and by means of the optimal policy for removing surplus, and finally determining the optimum cutting path; vectoring the optimum cutting path and controlling a cutting system to cut the leather. By the aid of the automatic two-dimensional irregular leather sample layout and cutting method, affection caused by irregular cutting samples can be reduced and utilization rate of the leather is increased.

Description

technical field [0001] The invention relates to the technical field of leather cutting, in particular to a two-dimensional irregular leather automatic nesting and cutting method based on full-frame CCD chip large-format imaging. Background technique [0002] In the highly competitive clothing industry, how to obtain the greatest economic benefits with the least cost and how to improve production efficiency are the concerns of various enterprises. In particular, how to quickly and optimally cut out the style modules for making clothes according to two-dimensional irregular clothing materials has always been the goal pursued by the automation of many industries such as textiles and clothing. In this process, accurate acquisition of planar image information of two-dimensional irregular materials is a prerequisite for the use of machine vision and computer-aided design. In addition, since the cost of raw materials accounts for a large proportion of the total production cost, su...

AI Technical Summary

Problems solved by technology

Generally, as the number of pattern modules to be cut increases, the calculation time required to obtain the optimal solution increases exponentially, and there are many constraints in practical problems, such as defects on the material surface, different regions of the material have different quality level, etc., which complicates the use of general optimization algorithms

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