Research Of 3D Reconstruction Based On The Structured Light

3D reconstruction is an im portant part of computer vision. By integrating the Im age Processing, Computer Vision and computer graphics. 3D rec onstruction can get the depth information of measured object from the 2D im age sequences information, and create the 3D model for the m easured object. It also can describe and explain the realistic significance from different environment and application situation. Now it is widely used in many fields, such as industrial product insp ection, cultural herita ge protection, virtual reality, 3D animation, computer-aided medical and military simulation.This paper summarizes various of the 3D measured technology and structured light methods. A 3D measured system with double cameras is built based on the coded m ethod of gray code and phrase shif ting. Finally, we obtain the 3D point cloud inform ation of measured object by this system.Initially, this paper introduces many kinds of 3D measured methods, coded structured light technology, and the situation of the 3D m easured technology. We make a summary of the various code methods. We compare their different advantage and weakness and analyze their own application situat ion. Especially we analyze the projection coding m ethod by combining Gray code and Phrase shifting. Th en we focus on the cam era calibration, we deduce the relation of im aging and the 3D from the object, the epipolar geom etry of the imaging sequences acquired by double cam eras. With double cameras we create one 3D measured system which based coded m ethod of gray code and phrase shifting. After that the FPGA hardware is used to gen erate each module of the encodi ng projection pattern, and the software part is used to build a 3D reconstruction system. With this m easured system we conduct experiment to obtain the 3D point cloud information of the object...