Three County Cities, Satellite Image Processing Methods And Application

In remote sensing,due to the features of the images themselves, at present, such ways are mainly used to study large and middle-sized cities. As for small towns (including large villages), people only judge their locations by reading the digital images. So, it is of much significance to study the ways to deal with satellite city images of Santai County in Sichuan province.This thesis tries to get scientific and practical ways of dealing satellite city. The main contents of the thesis are as follows:(1)Author collected and selected about 60 satellite images of Santai County in Sichuan province. The contents of the images include plants areas, industrial areas, roads, rivers, and building areas etc. The images are classified into different classes based characteristics of the images;(2)Tens of image processing algorithms are tested and analyzed on the images, the possible processing routines are given for the classes of the images;(3)Edge detection based image segmentation and Thresholding algorithms are tested, compared and analyzed for the different images, and the moments algorithms of image analysis are studied for the image characteristics determination;(4)Based on the above study and analysis, a number of image processing and analysis algorithms are coded into Windows program, and it is used for the images, and object measurement and analyses.In this study, Santai County geo-graphics information is processed in the first time, which is important to the county digitalization. Since the time limit, the images and related graphics data are not complete, the further work is to design and improve the image processing and analysis algorithm, and collect more information for completing the Santai County geo-graphics database.