Patent ID: 7379614
Filing Date: 2008-05-27
Classification: G06T

Abstract:
1. A method for providing services on online geometric correction using ground control point (‘GCP’) chips, the method comprising the steps of: (a) when communication starts between a client of a user computer and a GCP server managing a GCP chip database, providing the GCP server with a spatial range information of an object image for correction; (b) reporting GCP chip image and supplementary information relating with the object image to the client; (c) searching a corresponding point from the object image using the GCP chips; (d) providing the corresponding information to the GCP server; (e) calculating a correction equation for geometric correction or ortho-rectification concurrently using the provided information and precise geographic coordinate information of the GCP; (f) reporting the calculated correction equation to the client; and (g) performing a correction of the object image using the correction equation and the object image and then ending the communication between the GCP server and the client.