南粤古驿道历史建筑数字化保护与VR场景构建

南粤古驿道遗留了众多文化遗产，具有较高的历史、艺术、科学价值，但历史建筑损坏较为严重。为推进南粤古驿道活化利用，本文采用精细三维建模技术与虚拟现实（VR）技术实现了南粤古驿道的数字化保护。首先对南粤古驿道遗址进行了分析，然后从数据采集、点云数据处理、几何模型加工、纹理贴图等方面阐述对历史遗迹进行精细三维建模和VR场景构建的流程和方法。为提高点云数据处理效率，提出了基于遗传算法的欧氏聚类点云分割算法。应用结果表明，本文构建的精细三维模型及VR场景能有效还原南粤古驿道历史建筑，为古驿道与古街巷、古村落、红色革命遗址等文化自然景观的保护提供了新的思路。

Digital protection and VR scene construction of historical buildings in South China Historical Trail

The South China Historical Trail has left a lot of cultural heritage,which is of high historical,artistic and scientific value,but the historical buildings are seriously damaged.In order to promote the activation and utilization of the South China Historical Trail,this paper adopts fine 3D modeling technology and VR technology to realize the digital protection of the South China Historical Trail.First,analyze the ruins in South China Historical Trail.Then describe the process and method of fine 3D modeling and VR scene construction for historical relics from the data collection,point cloud data processing,geometric model processing,texture mapping and other aspects.To improve the efficiency of cloud data processing an euclidean clustering point cloud segmentation algorithm based on genetic algorithm is proposed.The application results show that the 3D model and VR scene constructed in this paper can effectively restore the monuments in South China Historical Trail.It provides a new way of thinking for the protection of historical trail,ancient streets,ancient villages,red revolutionary sites and other cultural and natural landscapes.