Three-dimensional modeling system and method based on multi-view images

The invention discloses a three-dimensional modeling system and method based on a multi-view image. The method comprises the following steps: reconstructing a three-dimensional model of a real scene through a two-dimensional multi-view image; the method comprises the steps of image feature point detection and matching, structure motion recovery, multi-view stereo, surface reconstruction and texture mapping, and feature points on different images are paired one by one through image feature point matching; calculating a camera pose and a three-dimensional coordinate of the sparse point cloud through the matched feature points; richer scene information is further obtained according to the camera pose; the obtained scene point cloud is gridded through surface reconstruction; and finally, the color of the grid is adjusted through texture mapping, so that the effect of the three-dimensional model is more vivid. The method can be deployed on the unmanned aerial vehicle, and a three-dimensional model of a scene can b