A PARATUS FOR INTERFACING A MOUSE USING A CAMERA IMAGE, SYSTEM AND METHOD USING THE PARATUS, COMPUTER READABLE RECORD MEDIUM ON WHICH A PROGRAM THEREFORE IS RECORDED

摘要

A mouse interface device using a camera, a system and a method using the same, and a computer-readable recording medium thereof are provided to control a position of a mouse cursor in a screen without any additional device by using homography converting a coordinate system of a camera into a planar coordinate system of the screen. An image coordinate detecting module(310) detects image coordinates, which are positions of at least four points found on an edge of a screen from a camera image, from the screen captured by a camera(100). A homography processing module(320) finds homography by using the detected image coordinates and planar coordinates, which are the planar coordinates formed by the screen for the predetermined points. The homography comprises a 3X3 matrix converting a coordinate system of the camera into a planar coordinate system of the screen. A cursor coordinate outputting module(330) outputs screen coordinates for the predetermined point of the camera image by using the homography and determines the screen coordinates as the position of the cursor. A mouse driver(400) moves the position of the cursor according to a change of the determined coordinates.