标题：A method of automatic cloud detection using TM image
作者：Qin, Yong ;Fu, Zhongliang ;Zhou, Fan ;Chen, Yixiang
作者机构：[Qin, Yong ;Fu, Zhongliang ;Zhou, Fan ;Chen, Yixiang ] School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;[Qi 更多
来源：Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University
摘要：In this paper we propose a method for automatic cloud detection, which employs both spectral and shape features. This method includes two main steps. First, based on the different spectral features of clouds and snow, an otsu-based method is used for threshold segmentation of a TM Image. Then, clouds are successfully extracted by discriminant analysis using the shape feature. Experiments indicate that as compared to the traditional threshold-based methods, the proposed method can effectively detect clouds with an improved automatization level.