融合倾斜影像和激光点云的宿迁学院建筑物数字化保存

基于宿迁学院校园将来可能会整体搬迁的背景,为了最大程度还原校园建筑物景观,保留老校园的风貌,需要对整个校园进行整体测绘。利用三维建模技术对建筑物进行数字化保存是非常高效和直观的,目前所使用的主流方法是无人机倾斜摄影测量技术与三维激光扫描技术,但由于前者侧重于对建筑物顶部及侧面构建三维纹理,对中部及底部建模效果欠佳;而后者由于仪器本身的局限性及建筑物高度对观测视角的限制,对建筑物中上部的数据信息很难完整获取。因此,针对以上问题,将无人机倾斜摄影测量技术和三维激光扫描技术相结合,进行优势互补,最后再利用软件进行数据去噪、精简、点云拼接及融合,将会实现高效、快速、高精度的实景三维建模。

Based on the fact that the Suqian University campus may be relocated as a whole in the future,in order to restore the campus building landscape to the maximum extent and retain the style and features of the old campus,it is necessary to survey and map the whole campus.It is very efficient and intuitive to use three-dimensional modeling technology to digitally preserve buildings.At present,the mainstream methods used are UAV tilt photogrammetry and three-dimensional laser scanning technology.However,because the former focuses on the construction of three-dimensional texture on the top and side of the building,the modeling effect on the middle and bottom is poor.However,due to the limitations of the instrument itself and the limitation of the height of the building to the observation angle,the latter is difficult to obtain the data information of the middle and upper part of the building.Therefore,in view of the above problems,the UAV tilt photogrammetry technology and three-dimensional laser scanning technology are combined to complement each other's advantages.Finally,the software is used for data denoising,simplification,point cloud splicing and fusion,which will achieve efficient,fast and high-precision 3D modeling.