An image-based modeling technique is described that can reconstruct 3D models of objects directly from two-dimensional digital images.This research introduces the basic method and principles of image-based modeling.This technique was used to build a 3D model of a statue on the campus of Chongqing University.This image-based modeling technique could be used in the case of natural disasters or accidents for construction of a 3D model and,therefore,be used for the restoration of cultural relics.The technique has practical value and various potential applications.