The present invention relates to a plurality of the multi-projection system to automatically calibrate the respective projector and projector calibration method thereof, to establish a multi-projection system using a single camera,
The method comprising: after generating the structured light pattern image based on the perfect submap, by changing both the color of the structured light pattern image provided to the plurality of projectors, respectively; Comprising the steps of through the camera while simultaneously projecting a structured light pattern image via a plurality of projector-up the overlapping area of ​​the structured light pattern image obtaining at least one image of a shot; Identify the projector corresponding to the reconstructed images respectively and simultaneously restore the plurality of the structured light pattern image included in the captured image, each color-based, and the above is based on the reconstructed image between responsiveness camera and the number of calculating a homography between the projector; And the camera and at least one of the calculated vertical and horizontal vanishing point on the plane, respectively, and the calculated vertical and horizontal vanishing point that make up the display environment homography and between the plurality of projector as the image pickup based on the edge information in the image and based can include determining a large display area.