Measuring method based on asymmetric binocular stereovision technology

Abstract

The invention discloses a measuring method based on an asymmetric binocular stereovision technology, comprising the following steps: firstly, constructing a vision measuring system and calibrating the related parameters of a camera and the vision measuring system; secondly, obtaining the plane of the object to be measured; and thirdly, obtaining the geometrical dimension parameter of the regions to be measured in the object to be measured. In the invention, aiming at the planar object to be measured, two cameras with different focal distances are used to form the vision measuring system, so that the measuring method can enlarge the measurement scope, realizes the same measurement precision on the object with a smaller size or a larger size, and has higher utilization value in severe measurement environment. The measuring method has wide measurement scope, high precision, quick speed, convenient measurement and installation process and low price, and is suitable for the measurement in the fields such as single-crystal preparation, electronic apparatus detection, pipelining detection and mechanical manufacturing industry and the like.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a measurement method based on asymmetric binocular stereo vision technology. Background technique [0002] With the rapid development of advanced manufacturing automation production technology and the continuous improvement of product quality control system, people have higher and higher requirements for the accuracy, efficiency and automation of the detection of the geometric size and shape position of the processing object, especially the part shape The complexity of the measurement and the on-site and real-time performance of the measurement pose new challenges to the traditional precision measurement technology. In some specific occasions, such as real-time online detection of surface contours, tiny dimensions and complex part features, etc., has become a difficult problem faced by traditional detection methods. [0003] The visual measurement technology deve...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a measurement method based on asymmetric binocular stereo vision technology, which solves the technical problems faced by the traditional binocular stereo vision technology measurement method, and uses two cameras with different focal lengths to form a visual measurement for a plane measurement object system, which expands the range of measurement and can achieve the same measurement accuracy for smaller and larger objects

Images