Our world is three-dimensional, but camera image is two-dimensional, in order to obtain

the three-dimensional information of objective object’s by the two-dimensional images, we

need to rebuild the three-dimensional model of the target so that we can target the quantitative

analysis. The same subject in computer vision and photogrammetry community,the stereo

vision-based three-dimensional reconstruction techniques have been widely used in medical

imaging, robot navigation, virtual reality, terrain exploration and other fields.