Crack detection apparatus and method of box culvert for electric power transmission using three-dimension laser scanner

PURPOSE: A crack detection device and method of box culvert for electric power transmission using a three-dimensional laser scanner are provided to reduce the time for exploring for oil and to improve the accuracy of the deformity discovery. CONSTITUTION: A crack detection device and method of box culvert for electric power transmission using a three-dimensional laser scanner(30) comprises an optical scanner(32), and an image processing device(40). The laser scanner collects and outputs 3D video data about a wall and ceiling of the electric power conduit pipe and the laser scanner. The optical scanner comprises a beam projector and a photo diode. The optical scanner collects and outputs the 3D video data. The image processing device compares the saved two dimensional monoscopic image and new two dimension monoscopic image and detects the defect from the electric power conduit pipe.