Applications of semantics understanding in the 3D process model reconstruction

By analyzing the current status、methods and problems of 3D reconstruction,Put forward a new method of 3D reconstruction the reconstruction of 3D process model driving by technical information. Not only start from three views,but also think about reduce the difficulties of engineer drawings and combine the information of graphics and words. Using a lot of process information and sketches in the electronic process sheets,the process model based on features can be reconstructed through semantics understanding,drawing recognitions and understanding and knowledge reasoning. The applications of semantics understanding in the 3D reconstruction are mainly introduced.