Camera Dimensional Calibration for Binocular Measurement in Special Environment
Camera calibration is an essential part in vision measurements.Because of the light deflection caused by temperature field and other factors,infrared vision measurement method is superior to the visible vision measurement in measuring the high-temperature component.Besides,infrared imaging,with a different imaging mechanism,cannot adopt the traditional visible light camera calibration method directly.By utilizing the infrared imaging mechanism,a dual infrared camera calibration program is proposed for the 3D measurement of high-temperature components.Multiple feature points are generated from precise movements of the ceramic ball calibration targets using an external high-temperature radiation source as background.In order to further reduce the temperature effect and improve the calibration accuracy and efficiency,the distance between double ceramic targets is used as the calibration reference.Experimental results show that the proposed design idea is reasonable.
binocular vision infrared image ceramic ball pinhole imaging model
Ye-Long Zheng Su-Mei Cui Le Song Mei-Rong Zhao
State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin, China
国际会议
天津
英文
91-95
2012-10-16（万方平台首次上网日期，不代表论文的发表时间）