毫米级精度复刻 数字技术这样守护鼓浪屿世界遗产瑰宝

Core Viewpoint - The article highlights the advancements in digital preservation and restoration of cultural heritage, specifically focusing on the efforts in Xiamen's Gulangyu Island, coinciding with China's 9th Cultural and Natural Heritage Day. Group 1: Digital Preservation Techniques - A team from Xiamen University is utilizing 3D laser scanning technology to collect detailed data on the historical building Huangrongyuantang, which is facing structural issues [3] - The 3D laser scanner captures data at a rate of 300,000 points per second, allowing for accurate recording of the building's surface coordinates, colors, and textures [5] - The combination of ground-based 3D laser scanning and drone aerial photography creates a high-precision 3D model, facilitating the management of the building's lifecycle [7] Group 2: Progress in Heritage Documentation - Gulangyu Island has completed digital archiving for 63 cultural heritage units at the district level and above, including 9 national and 2 provincial protected buildings [9] - The cultural heritage protection office plans to create a digital twin model of the 1.88 square kilometer island, integrating detailed architectural data with the heritage management system for better protection and management [11]