Quickly Sences Acquisition Technology Based On Linear Laser And Multi-Cameras

Our nation boasts a long history and abundant hesitates. In some archeofogy excavation projects, because of peoples' subjective bias, hosts of useful information have lost. So it is important for us to develop a method which can quickly get Comprehensive 3D information of Archeofogy excavation scenes.At present, there are two technologies of 3d acquisition.One of these is femtosecond laser. This method based on computing the phase time of laser. Out of these technology only get one space coordinate one time, it become powerless when be used in large scenes. Another is based on multi-pictures. The shortcomings of this method are once laser emitter or projector calibrated, we cannot move them, this lead we cannot scan the whole scene once and one angle.Given the current lack of methods, we propose a new reconstruction method based on laser line and multi-camera and implement the prototype system with C++. The advantages of our method are free laser emitter calibration and high efficiency. In our system, the core algorithm contains two parts: multi-camera calibration and 3D reconstruction. Also, we described these algorithms in details. In final chapter we talk about the system's precision and efficiency.