Patent ID: 8368761

Claim:
An image correction method for a camera system, comprising: a) acquiring image data about a reference ground mark which is captured by a camera and on which at least one ground mark is indicated; b) obtaining coordinates of a captured ground mark based on the image data acquired in a); c) displaying both the captured ground mark and the reference ground mark on a display unit, wherein the reference ground mark is preset and the captured ground mark is captured by the camera; and d) in response to a driver selecting the captured ground mark, transmitting one or more coordinates associated with the captured ground mark to a control unit, correcting by the control unit any misalignment of those coordinates with the reference ground mark and replacing, by the control unit, a preset Look-Up Table (LUT) with a new LUT based on errors identified by the control unit between coordinates of the captured ground mark and coordinates of a preset reference mark, wherein new LUT is replaced by calculating an amount of correction depending on a movement and an amount of rotation of each optical axis of the camera, and then generates new optical axis detection values for the camera.