基于正交柱面成像相機(jī)的大尺寸三維坐標(biāo)測(cè)量
發(fā)布時(shí)間:2018-04-15 01:25
本文選題:正交柱面成像 + 線陣相機(jī); 參考:《紅外與激光工程》2016年11期
【摘要】:提出了一種基于正交柱面成像相機(jī)的大尺寸三維坐標(biāo)測(cè)量方法。正交柱面成像相機(jī)由一個(gè)正交柱面成像光學(xué)系統(tǒng)和兩個(gè)正交放置的線陣CCD組成,它們分別被用來(lái)檢測(cè)被測(cè)點(diǎn)的水平角和垂直角。一個(gè)相機(jī)決定了兩個(gè)角度,兩個(gè)相機(jī)交匯,即可實(shí)現(xiàn)被測(cè)點(diǎn)的三維坐標(biāo)測(cè)量。所提出的方法在精密坐標(biāo)測(cè)量特別是動(dòng)態(tài)位置跟蹤方面具有突出的優(yōu)勢(shì)。一個(gè)靈活的內(nèi)參標(biāo)定方法被用來(lái)標(biāo)定正交柱面成像相機(jī),內(nèi)參標(biāo)定后相機(jī)在水平方向和垂直方向角度測(cè)量誤差的均值分別為1.85″和2.16″。另外,雙相機(jī)的外參標(biāo)定也被介紹,外參標(biāo)定后系統(tǒng)的坐標(biāo)測(cè)量精度優(yōu)于0.52 mm。實(shí)驗(yàn)結(jié)果表明:所提出的三維坐標(biāo)測(cè)量方法有效,具有良好的測(cè)量精度。
[Abstract]:A large scale 3D coordinate measurement method based on orthogonal cylindrical imaging camera is proposed.The orthogonal cylindrical imaging camera is composed of an orthogonal cylindrical imaging optical system and two orthogonal array CCD which are used to detect the horizontal and vertical angles of the measured points respectively.A camera determines two angles, and the intersection of two cameras can realize the 3D coordinate measurement of the measured point.The proposed method has outstanding advantages in precise coordinate measurement, especially in dynamic position tracking.A flexible internal parameter calibration method is used to calibrate the quadrature cylindrical imaging camera. The mean values of measurement errors in horizontal and vertical directions are 1.85 "and 2.16" respectively.In addition, the external parameter calibration of double cameras is also introduced. The coordinate measurement accuracy of the system after external parameter calibration is better than 0.52 mm.The experimental results show that the proposed 3D coordinate measurement method is effective and has good measurement accuracy.
【作者單位】: 天津大學(xué)精密測(cè)試技術(shù)及儀器國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【分類號(hào)】:TU198
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