数字化图像测量分析技术──2DFT方法及其应用

Digital Image Analysis Technique──2DFT and Its Application

采用数字图像分析技术（DIA）中的两维Fourier变换方法（ZDFT）和一套自行设计、装配的时间分辨的数字图像测量分析系统，研究了聚甲基丙烯酸甲酯／聚醋酸乙烯酯热致相分离的动力学过程，借助扫描器成功地应用于电子显微镜照片的分析．并指出了DIA研究方法在应用中需要注意的问题．

Digital Image Analysis Technique(DIA) has been applied to extract various typesof physical information from an image of high-order structures in polymer systems. UsingDIA, we haye succeeded in obtaining the power spectrum of two-dimensional Fouriertransformation (2DFT) of an image in real space. By settinig up a time-resolved digital imageanalysis system, we managed to study the phase separation dynamics of poly(methylmathacrylate)/poly (vinyl acetate) via 2DFT. Even more, we made it practicable to study theelectronic microscopic picture with the help of a one-dimensional scanner. At the end of thispaper, remarks on getting rich information from DIA were presented.