【摘要】：針對(duì)大型結(jié)構(gòu)表面積較大而像機(jī)視野有限的問題,提出了一種基于傳遞像機(jī)的移動(dòng)攝像測(cè)量方法,該方法可對(duì)大型結(jié)構(gòu)進(jìn)行全局掃描測(cè)量。利用固定連接于移動(dòng)平臺(tái)的傳遞像機(jī)對(duì)基準(zhǔn)標(biāo)識(shí)點(diǎn)進(jìn)行圖像采集,采用像機(jī)參數(shù)標(biāo)定方法對(duì)傳遞像機(jī)的外參數(shù)進(jìn)行計(jì)算,得到相鄰時(shí)刻移動(dòng)平臺(tái)坐標(biāo)的相對(duì)轉(zhuǎn)換關(guān)系。測(cè)量像機(jī)在移動(dòng)平臺(tái)的驅(qū)動(dòng)下圍繞結(jié)構(gòu)表面采集特征點(diǎn),利用運(yùn)動(dòng)平臺(tái)坐標(biāo)的轉(zhuǎn)換關(guān)系計(jì)算得到測(cè)量像機(jī)的實(shí)時(shí)外參數(shù)。建立等效雙目交會(huì)共線方程,并對(duì)特征點(diǎn)位置進(jìn)行計(jì)算,在初始位置完成參數(shù)標(biāo)定后,即可實(shí)現(xiàn)自動(dòng)測(cè)量。實(shí)驗(yàn)結(jié)果表明,所提出的移動(dòng)攝像測(cè)量方法的測(cè)量精度可達(dá)2.012mm,且自動(dòng)化程度較高,可應(yīng)用于大型結(jié)構(gòu)的在線監(jiān)測(cè)。
[Abstract]:In order to solve the problem that the surface area of large structures is large and the field of vision of camera is limited, a method of moving camera measurement based on transfer camera is proposed, which can be used for global scanning measurement of large structures. The transfer camera connected to the mobile platform is used to collect the image of the reference mark point, and the camera parameter calibration method is used to calculate the external parameters of the camera, and the relative transformation relation of the coordinate of the mobile platform at the adjacent time is obtained. The measuring camera is driven by the mobile platform to collect the feature points around the structure surface. The real time external parameters of the measuring camera are calculated by using the coordinate transformation relation of the moving platform. The collinear equation of equivalent binocular rendezvous is established, and the characteristic point position is calculated. After the initial position is calibrated, the automatic measurement can be realized. The experimental results show that the measurement accuracy of the proposed method can reach 2.012mm and the degree of automation is high. The method can be applied to the on-line monitoring of large structures.
【作者單位】： 火箭軍工程大學(xué)控制工程系;火箭軍工程大學(xué)信息工程系;
【基金】：國(guó)家杰出青年科學(xué)基金(61025014) 國(guó)家自然科學(xué)基金(61174030,61104223)
【分類號(hào)】：P235
，

本文編號(hào)：2411533