72 The Application of Digital Photogrammetry in Digital Information of Mine

This article mainly describe that using non-metric digital camera, through taking photos of mine surface ,based on the theory of close-range photographic, coordinates of the surface is obtained. According to the coordinates, 3D model of mine surface is built. The large scale maps of mine are made. Based on coordinates and 3D model in the period of different time, the changes of mine surface are get. Changes measured can know the shape of mine in time and test the reasonableness of eye position of mine explore and make adjustments based on the data.