计算机工程与应用2019，Vol.55Issue(24)：164-170,7.DOI:10.3778/j.issn.1002-8331.1904-0511
x-f-k变换快速实现频域解相方法
Fast Implementation of Frequency Domain Phase Unwrapping Method by x-f-k Transform
摘要
Abstract
The x-f-k transform is drawn into the phase demodulation method in frequency domain for quickly realizing the three-dimensional surface measurement. Compared with the traditional method, the x-f-k transform can realize the local analysis and demodulation of signal in horizontal and vertical directions, which accelerates the measurement speed, improves the accuracy of the measurement results and reduces memory requirement. It simply means that taking the S-transform and then taking the Fourier transform in both horizontal and vertical directions respectively obtain the coeffi-cient matrix of the pixel points and the phase information. The shape of three-dimensional objects is reconstructed through the modulation relationship between the phase and the height distribution. The experimental results show that the pro-posed method can effectively realize the optical three-dimensional surface measurement and provide results in the form of fringe, then the measurement error is less than 0.6%.关键词
变形条纹/三维测量/频域解相/x-f-k变换Key words
deformed fringe/three-dimensional measurement/frequency domain phase unwrapping/x-f-k transform分类
信息技术与安全科学引用本文复制引用
张志禹,侯凯,满蔚仕..x-f-k变换快速实现频域解相方法[J].计算机工程与应用,2019,55(24):164-170,7.基金项目
国家自然科学基金重大项目(No.41390454). （No.41390454）
