Aiming at the shortcomings of the traditional infrared detection technology

the detection on container inwall defects is carried out by using the method of combining infrared camera with 3D laser scanner. Using 3D laser scanner to obtain three-dimensional point cloud data of container

precise geometry field of container is established and at the same time temperature field of container is obtained by thermal infrared camera. The threedimensional multi-source field is formed through the superposition of the temperature field and 3D geometry field

and the recognition

positioning and measurement of defects can be realized on the 3D multi-source field. The experimental results indicate that this method can make direct-viewing

fast

effective detection on position and geometry size of defects.