Method for automatically obtaining geometric parameters of stone based on machine vision

Abstract

The invention discloses a method for automatically obtaining the geometric parameters of a stone based on machine vision, and the method comprises the following steps: (1), building a stone image collection platform; (2), collecting a calibration board image and a stone image, and selecting effective areas of the images; (3), carrying out the tilt correction, distortion correction and size calibration; (4), generating gray scale images of the effective areas according to different backgrounds and corresponding conversion formulas; (5), generating binary images of the effective areas; (6), detecting the boundary contour of the stone, and calculating the actual area and perimeter of the stone; (7), calculating parameters corresponding to different filling and cutting schemes according to the boundary contour of the stone. The method can obtain the geometric parameter information of the stone quickly and accurately, is simple and quick in operation, is high in precision of the measurement result, is low in implementation cost, and is strong in anti-interference capability.

Description

technical field [0001] The invention relates to the field of stone processing, in particular to an automatic acquisition method of stone geometric parameters based on machine vision. Background technique [0002] With the continuous development of my country's economy, people's demand for stone is increasing year by year. However, compared with other industries, the current level of stone production still lags behind in the level of automation, especially the lack of fast and efficient parameter measurement technology. The production level of stone is seriously restricted. The development of automatic acquisition technology of stone cutting parameters can effectively improve the production efficiency of stone, reduce the waste of raw materials, standardize stone storage management, and reduce labor costs. For the actual production and processing of stone at present, the geometric parameters of the stone are mainly obtained through the contact measurement method. However, beca...

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Problems solved by technology

[0002] With the continuous development of my country's economy, people's demand for stone is increasing year by year. However, compared with other industries, the current level of stone production still lags behind in the level of automation, especially the lack of fast and efficient parameter measurement technology. Seriously restricting the production level of stone, the development of automatic acquisition technology of stone cutting parameters can effectively improve the production efficiency of stone, reduce the waste of raw materials, standardize stone storage management, and reduce labor costs

For the actual production and processing of stone at present, the geometric parameters of the stone are mainly obtained through the contact measurement method. However, because the edges of the stone raw materials are often not straight and the size span of different stone materials is large, there is a problem with the use of the contact measurement method. Difficult, Inefficient Problems

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