System framework and method for automatic geometric correction of remote sensing images

The invention provides a system framework and method for automatic geometric correction of remote sensing images. The framework comprises a region-class reference image set, wherein the reference data of the region-class reference image set are used as reference images to geometrically correct new images. The method mainly comprises the following three steps: extracting the reference images corresponding to the areas of images to be corrected and a DEM (Digital Elevation Model) or a DTM (Digital Terrain Model) as control images by using the coordinate information of four angular points of the images to be corrected and the estimated value of a system corrective error; automatically matching the control images with the images to be corrected so as to obtain control points; and establishing a corrective model between the images to be corrected and the control images based on the control points so as to correct the images.