融合多平台影像的绍兴古代石桥三维精细数字化保护

3D Digital Protection of Shaoxing Ancient Stone Bridge by Integrating Multi-Platform Images

绍兴古代石桥是极具特色的大宗文化遗产,三维数字化重建有助于保留古代石桥精准的几何结构和丰富纹理信息,支撑进一步文物保护工作。复杂的表面、丰富的雕刻细节和相对庞大的体积,使得古代石桥精细化三维重建时需要兼顾高效率的大范围数据获取和高精度的局部细节保留。提出一种融合空地影像的三维精细化重建方法,实现绍兴古代石桥整体场景和局部精细结构的完整精细重建。该方法成功应用在绍兴市古桥群三维重建保护实践中。

The ancient stone bridge in Shaoxing is a large cultural heritage with great characteristics.3D digital reconstruction is helpful to retain the accurate geometric structure and rich texture information of the ancient stone bridge and support further cultural relic protection work.The complex surface,rich sculptural details and relatively large volume make it necessary to obtain large range of data with high efficiency and preserve local details with high precision when the ancient stone bridge is reconstructed in fine detail.This paper proposes a three-dimensional fine reconstruction method that integrates the empty space image,realizes the complete and fine reconstruction of the whole scene and local fine structure of the ancient Shaoxing stone bridge.The method proposed in this paper has been successfully applied to the 3D reconstruction and protection of ancient Bridges in Shaoxing city.