Fast Coordinating Transformation Between Image of Remote and Geodetic Coordinates
遥感图像与地理坐标匹配的快速算法

Coordinating transformation between image of GIS data and geodetic coordinates is problem frequently met in processing of remote sensing images, which involves a contradiction between processing speed and conversion accuracy. To solve this contradiction, a new algorithm which introduces a new conception of Index Array is developed base on analysis existing methods of registration, which can be used to retrieve pixels of corresponding coordinates directly and avoid heavy computation need by traditional searching. This algorithm is characterized of quick accurate transformation between the two coordinates, and allows real-time superposing geographical info, such as geographical coordinates and boundaries, on real time received remote sensing images which proves to be correct by experiments in MODIS real time data receiving.