【摘要】 本文介绍一种光学－计算机混合处理系统对图像进行空间频谱分析的原理和方法。该系统的光学部分是一个夫琅和费衍射装置，它把光学图像转换成二维的傅立叶频谱，即空间频谱。计算机则负责频谱数据的采集与分析。鉴于遥感地质日视解译中区分岩类的主要识别指标是遥感图像的影纹特征，文中以岩石的遥感图像的空间频谱采样与特征提取，对空间频谱进行识别和分类为例，阐明利用衍射图样对图像进行识别的方法。更多还原

【Abstract】 The paper describes the principle and method of spatial spectrum analysis to photographic image using an optics computer hybrid processing system. Among them the optics unit is a Frouhofer diffraction facility. that can be generated the two dimensinal Fourier transformation (namely spatial spectrum) of photographic image. its computer unit is used to sample and analysis for spatial spectrum. The pattern on the remote sensing image is a main identifying feature for rock’s type of geological visual interpretation. The pattern recognition of image using the diffraction sampling is discussed by an example that rock’s type on remote sensing image is recognized and classified by spatial spectrum features.更多还原