The two dimensional FFT method is applied to process closed fringe.
研究了二维fft处理闭合干涉条纹的算法。
Aiming at the closed fringe patterns gathered by CCD, image pretreatment technology, Coordinate transformation stripe center method and Zernike interferogram fitting technology were investigated.
针对CCD采集的闭合干涉条纹，研究了图像预处理技术、基于坐标变换的条纹中心法及泽尼克波面拟合技术。
Aiming at the closed fringe patterns gathered by CCD, image pretreatment technology, Coordinate transformation stripe center method and Zernike interferogram fitting technology were investigated.
针对CCD采集的闭合干涉条纹，研究了图像预处理技术、基于坐标变换的条纹中心法及泽尼克波面拟合技术。
应用推荐