基于双目立体视觉平台的三维图形高精度位形检测技术研究  

The Research on 3D Graphics High-precision Configuration Detecting Technology Based on Binocular Stereo Vision

作　　者：马骏 韩云龙 徐振业 刘志浩 MA Jun;HAN Yunlong;XU Zhenye;LIU Zhihao(AVIC Research Institute for Special Stnirtures of Aeronautical Composites,Aviation Key Lab of Science and Terhnology on High Performance Electromagnetic Windows Jinan 250023)

机构地区：[1]航空工业济南特种结构研究所,高性能电磁窗航空科技重点实验室,济南250023

出　　处：《纤维复合材料》2020年第4期119-123,共5页Fiber Composites

摘　　要：频率选择表面是一种二维周期阵列结构,与电磁波相互作用表现出明显的带通或带阻的滤波特性,近年来被广泛应用于航空飞行器电磁功能结构的设计和制造过程中,由于在产品上呈现出的是自由曲率曲面下的周期性排列的金属贴片单元,故其制造符合性检测实际为一种三维图形高精度位形检测技术。传统的频率选择表面结构的制造符合性检测采用光学CCD设备,存在测量误差大、测量稳定性不高的缺点。本文提出一种基于双目立体视觉技术的测量方案,并围绕该方案开展了硬件平台搭建、测量软件编写、试验样件设计、现场测量试验等工作。试验结果表明,该方案相较于传统测量方法在测量准确性、稳定性方面有着更优异的表现。Frequency selection surface(FSS)is a two dimensional periodic array structure.During interaction with electromagnetic wave it has showed a filtering characteristics in bandpass or bandstop.Recent years the FSS has been widely used in design and manufacture process of electromagnetic function structure of aerocrafts.Resonating with the periodic arrangement metal chip unit on free curvature surface of the product the manufacturing conformity test is indeed a 3D graphics high-precision configuration detection technology.The traditional FSS structure's manufacturing conformity test always used optical CCD devices and it has the shortcomings of large measurement error and low stability.This paper has provided a measuring scheme based on binocular stereo vision.According to the scheme we carry out work on hardware platform construction,measurement software writing,test sample design and field measurement test.The test result shows that the new scheme has a better performance on measurement accuracy and stability.

关 键 词：三维图形 双目立体视觉 特征点提取 点云融合 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] V260.5[自动化与计算机技术—计算机科学与技术]