Stone big board surface contour dimension obtaining system and method based on machine vision

Abstract

The present invention discloses a stone big board surface contour dimension obtaining system and method based on the machine vision. The system comprises a vision information collection work bench, a vision information collection portion and a vision detection module; the vision information collection work bench is provided with the vision information collection portion; the vision information collection portion collects the color images and the depth information of the stone big board in an online and non-contact mode; and the vision detection module is configured to perform feature analysis and target detection of the color images and depth information obtained by the vision information collection portion, identify the target area of the stone big board, extract the surface contour of the stone big board, and further combine imaging parameters to collect the length-width information of the maximum inscribing rectangular of the surface contour of the stone big board. The stone big board surface contour dimension obtaining system and method based on the machine vision can automatically extract the surface contour and the size of the stone big board through comprehensive adoption of the collected images and the depth information of the stone big board aiming at a stone block big board with the irregular shape.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a machine vision-based online acquisition system and method for the surface profile of large stone slabs on a large stone slab processing production line. Background technique [0002] Stone is an important raw material for decoration in the construction industry, and the utilization rate, production efficiency and processing level of stone are very important. Stone CNC machining centers in Italy, the United States, Germany and other countries have become representatives of the world's leading technology due to their high quality, high efficiency, high reliability, advanced technology and practicability, but their high prices have hindered their popularity in my country's stone industry. vigorously promote. [0003] The stone industry is still a new industry in our country. In recent years, with the rapid development of my country's stone industry, a number of stone pro...

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Problems solved by technology

[0004] But in general, my country's stone processing equipment and its application still have deficiencies, and there is still a certain gap with the international advanced level

In particular, the extraction of stone contour dimensions, which is the first step and key process in the stone processing production process, is currently still at the traditional manual measurement level in my country, with low efficiency, which has become a major bottleneck hindering the development of stone processing technology, and is also an urgent need for the stone processing industry technical problems

[0005] my country's Shenyang Jianzhu University, Zhejiang University, Tianjin University, Southeast University of Technology, etc. have carried out some research work on the online detection system of stone profile dimensions, but the online measurement system and related equipment for large stone slabs have not yet been seen in China. Production related reports

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