激光技术Issue(3)：402-405,4.DOI:10.7510/jgjs.issn.1001-3806.2014.03.026
应用频率积分相位解调测量径向畸变
Measurement of radial distortion based on frequency integration phase demodulation
摘要
Abstract
To measure the radial distortion in optical imaging systems , adopting the straight sinusoidal carrier-fringe pattern, the radial modulated phase resulting from radial distortion was extracted by means of instantaneous frequency integration .The formula between the instantaneous frequency and the radial modulated phase was deduced , and the conversion formula between the radial modulated phase and the radial distortion displacement was obtained . The instantaneous frequency of the distorted fringe pattern in the radial direction was calculated by using frequency estimation of Gabor wavelet transform , and integrated to obtain the radial modulated phase .The radial modulated phase and the cubic convolution interpolation algorithm were used to calibrate the distorted image .Experimental results demonstrate that the method is available .关键词
测量与计量/畸变测量/载频条纹/相位解调/径向畸变Key words
measurement and metrology/distortion measurement/carrier frequency fringe pattern/phase demodulation/radial distortion分类
数理科学引用本文复制引用
杨初平,刘建斌,谭穗妍,翁嘉文..应用频率积分相位解调测量径向畸变[J].激光技术,2014,(3):402-405,4.基金项目
国家自然科学基金资助项目（61307011）；广东省自然科学基金资助项目 （）
