基于无人机倾斜摄影的校园三维全景模型构建

Construction of Three-Dimensional Panoramic Model on Campus based on UAV Tilt Photography

为了提升校园三维全景重构效果,提出基于无人机倾斜摄影的校园三维全景模型重构方法。采用无人机倾斜摄影进行校园三维全景数据采样,提取校园三维全景图像的边缘轮廓信息,结合三维图像特征分析方法进行校园三维全景图像的显著图特征重组。提取校园三维全景模型的关键像素特征点集,分析校园三维全景的模糊域,以图像的边缘和区域为中心,建立校园三维全景的融合跟踪模型。利用变分法对三维全景分布特征值进行极小化处理,并采用图像拼接技术构建多分辨的校园三维全景无人机摄影图像的拼接模型,实现校园三维全景模型构建。仿真结果表明,采用该方法进行校园三维全景模型的辨识度较高,全景展现能力较强,重构效果更好。

In order to improve the effect of campus 3D panoramic reconstruction,a campus 3D panoramic model reconstruction method based on UAV tilt photography was proposed.The UAV tilt photography was used to sample the campus 3D panoramic data,extract the edge contour information of the campus 3D panoramic images,and reorganize the salient image features of the campus 3D panoramic image combined with the 3D image feature analysis method.The key pixel feature point set of the campus 3D panoramic model was extracted.the fuzzy domain of the campus 3D panorama was analyzed and the fusion tracking model of campus 3D panorama was established centered on the edge and area of the image.Variational method was used to minimize the 3D panoramic distribution eigenvalues,and the multi-resolution mosaic model of campus 3D panorama UAV photography image was constructed by using image mosaic technology,so as to the construction of campus 3D panorama model was realized.The simulation results show that this method has high recognition degree,strong panoramic display ability and better reconstruction effect.