| Rectification of raster image is a necessary step of Geo-information processing. The paper presents several aspects in partition rectification and visualization of raster image.â… .Adopt technology of visualization for scientific calculation ,vector diagram of deformation,contour chart of deformation and drawing of three-dimensional are realized. â…¡.Delaunay TIN in view of deformation feature is constructed on base of selected grid control points and methods and mathematical models for partition rectification are realized based on the Delaunay TIN. â…¢.software of geometric rectification for large scales are realized and applied in project.
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