Layout optimization method for camera in binocular vision measuring system

Abstract

The invention discloses a layout optimization method for a camera in a binocular vision measuring system, belongs to the fields of computer vision detection and image detection, and particularly relates to the layout optimization method for the camera in the binocular vision measuring system for obtaining dimension parameters of a large-scale forging piece. In the binocular vision measuring system, image point extraction deviation caused by image sampling is considered, a mathematic relation model, namely a camera layout optimization mathematic model, is established between a measuring error which is caused by the image point extraction deviation and three structural parameters of a camera focal distance, a reference line distance and a camera deflection angle, and an optimized structural parameter combination is obtained by utilizing a genetic algorithm. According to the layout optimization method disclosed by the invention, the layout optimization design of the camera in the binocular vision measuring system is realized by utilizing the genetic algorithm, minimization of the measuring error caused by the image point extraction deviation is achieved, effective theoretical guidance and reference can be provided for reasonable layout of the camera under the situation that the camera is not calibrated, and the layout optimization method has the characteristics of good optimization effect and strong applicability.

Description

technical field [0001] The invention belongs to the field of computer vision detection and image detection, and in particular relates to a method for optimizing the layout of cameras in a binocular vision measurement system used to acquire size parameters of large forgings. Background technique [0002] As a non-contact measurement method with strong real-time performance and high measurement accuracy, binocular vision measurement is widely used in many fields such as industrial inspection and target recognition, especially in real-time measurement of thermal geometric dimensions in the forging process of large forgings. The advantages. Many scholars have carried out a lot of research on how to obtain high-precision measurement results. However, these research work mainly focus on improving the calibration accuracy of the camera system and the matching accuracy of feature points, often ignoring the influence of the structural parameters of the measurement system on the measu...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, aiming at the lack of an effective camera layout optimization method at the forging site, and the lack of comprehensive consideration of the various structural parameters of the system, etc., to invent a binocular vision based on genetic algorithm Optimal Method of Camera Layout in Measuring System

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