Research on 3D Digital Modeling and Virtual Simulation Technology of Ancient Architecture Based on Image Sequence

With the wide application of virtual reality technology in the field of architecture, the research on three-dimensional digital technology and virtual simulation technology of building model has become an important topic. Based on the analysis of the structural characteristics of Chinese ancient buildings, this paper takes the structure of Chinese ancient buildings as the standard to model 3D scenes, and discusses the process and method of reconstructing 3D models of Chinese ancient buildings from image sequences. Furthermore, using the techniques of line segment detection, image region merging and image segmentation, the units of ancient buildings are subdivided to get more detailed features of ancient buildings. At the same time, OpenGL or DirectX and other related roaming technologies are used to build 3D scenes, and a real-time virtual simulation system is established, thus realizing the virtual roaming of 3D models of ancient buildings in the simulation scene environment. Truly reappearing traditional architecture and its representative culture provides a feasible route for the digital protection of ancient Chinese architecture.