Method for providing services on online geometric correction using GCP chips
First Claim
Patent Images
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.
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Abstract
Disclosed is a method for providing services on online geometric correction using, in which information related with GCP (Ground Control Point) used for correcting geometric distortion of an image collected by an aircraft or a satellite are transmitted online through Internet network, thereby allowing a user at a remote place to perform geometric correction or ortho-rectification. In the geometric correction process, the image information related with the GCP is provided but the precise geographic coordinate of the GCP itself is not provided to thereby maintain the secretion of detailed geographic information.
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Citations
11 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- GCP’
Specification