Kosuke BABA

Study on advanced methods of the aged deterioration extraction technique of the ground cover by an earth observation satellite image

Atsushi RIKIMARU Hiroki IRIE

It is important that grasping land cover in a wide area extracts change and the land development area of the land use in which a field survey includes a difficult area with favorite remote sensing technology.ˇˇIt is distinguished by the logical contents whether to be a forest or to be soil, forests decrease in amount gradually, and The extraction of aged deterioration of the conventional land cover cannot grasp the state of increasing while the quantity of soil is for a while. I may grasp the change of the land coating that is in interim state by distinguishing a land coating state at the coating degree of the surface material of the earth surface.Using the multi-time ETM+ data observed and recorded by LANDSAT-7ETM+, in this research, the following items were performed for the purpose of the improvement of the aged deterioration extraction technique of land cover.ˇˇPansharpen image processing which creates the multispectrum image of high resolution was performed, and aged deterioration extraction accuracy was improved.The land cover change state of the interim state of vegetation and soil has been grasped in vegetation change index analysis. The analysis in a pixel performed the result and comparison of the vegetation change index. And analysis accuracy was verified with the high resolution satellite image.Extraction accuracy of aged deterioration has been improved in that it has made pansharpen image processing is the process of improving spatial resolution.Vegetation change index analysis -- the land cover change state of the interim state of vegetation and soil -- it has grasped . The occupancy area of vegetation and soil was computed by conducting analysis in a image in the domain extracted from the vegetation change index figure. The error was seen although the analysis accuracy in a pixel was verified by a high resolution satellite image .

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