| 摘要 |
The present invention relates to an outdoor billboard measuring system and to a method for same, capable of efficiently measuring the size and area of the outdoor billboard through a photographed image of the billboard to maintain the outdoor billboard. To this end, the outdoor billboard measuring system of the present invention comprises a first camera and a second camera for double-photographing the same outdoor billboard, a camera data collection unit for collecting two image data for the same outdoor billboard from the first camera and the second camera, and an outdoor billboard size measuring unit for performing a pre-process of calculating external expression elements for defining the photographing position and posture of the first camera and the second camera and the two focal distances, computing image coordinates for the two images collected by the camera data collection unit and the external expression elements to calculate three-dimensional model coordinates, and measuring the size and area of the relevant outdoor billboard on the basis of the three-dimensional model coordinates. |
