Application Of Image Correlation Analysis In Remote Sensing Change Detection

Image correlation refers to the correlation between images,and the similarity between images can be obtained through image correlation analysis,so this method can be used in remote sensing change detection research.In the analysis of remote sensing image change,on one hand,the traditional pixel based change detection only considers the spectral information of the image.With the improvement of the remote sensing image resolution,the shortcomings and shortcomings are becoming more and more obvious.On the other hand,although the object oriented change detection also takes into account the spatial feature information of the ground objects,but the research on image segmentation and change information analysis method The study is still in the primary stage.Based on this,this paper study the application of image correlation in object oriented change detection.The main contents and achievements of this paper are as follows:(1)The remote sensing image change detection methods were summarized,and the advantages and disadvantages of various methods were compared and analyzed.(2)The related theory of image correlation analysis in change detection preprocessing is studied,and image matching and cutting processing are realized.The experimental results show its feasibility and practicability.(3)Some problems in the application of image correlation analysis in object oriented change detection are studied,such as the optimal image segmentation scale,the change information analysis based on the correlation coefficient of image correlation and the single characteristic coefficient,and the effective conclusion is obtained through the experiment.(4)Design and implement the change detection program ICCD based on image correlation analysis.(5)Taking the change detection of building land as an example,the paper puts forward the method and the effectiveness of the developed procedure in practical application.By comparing the application results with other change detection methods,the advantage and practicability of change detection based on image correlation analysis is verified.