A Case Study of the Small Wild Goose Pagoda in the Tang Dynasty

Taking the Small Wild Goose Pagoda in Tang-Dynasty as a case, study this paper mainly researches the key technologies of the 3D reality-based modeling from real data and of the 3D virtual walkthrough of the cultural archaeological sites. Firstly, this paper puts forward the method of the 3D digital data process of the cultural archaeological sites by way of combining the technologies of the 3D laser scanning of the large scenes and the digital photography, which enables the prompt and accurate digital data acquisition without damaging the cultural archaeological sites; then based on the laser-synchronized visual image of the ancient buildings, the paper proposes the method of 3D reality-based modeling from real data with the adoption of local texture mapping; finally, the paper introduces the systematic architecture, technology roadmap and all the key technologies of a 3D virtual walk-through system based on WebGIS for cultural archaeological sites. The implementation of the methods proposed in the paper cannot only create a reality-based 3D digital modeling of the Small Wild Goose Pagoda, which helps to realize the digital protection of this important cultural site built in 707 AD, but also create a digital object with the 3D virtual walkthrough function for the Small Wild Goose Pagoda so that people can enjoy its unique historical, cultural and tourist values based on the Internet.