城市倾斜摄影三维模型数据

利用倾斜摄影技术，获取目标区域内实景三维格网模型或单体化模型，航空相片重叠度75%；分辨率包括2cm、5cm、8cm、10cm等不同规格。模型质量：（1）建筑物三维体块模型完整，位置准确、具有现实性，与获取的航空影像表现一致；（2） 建筑物三维模型精准反映房屋屋顶及外廓的基本特征。在100米的视点高度下浏览模型，模型没有明显拉伸变形或纹理漏洞，（3）建筑物模型的高度与平面尺寸与实际保持一致的比例，建筑物模型高度误差不超过10%。

Using oblique photogrammetry technology, real-world 3D grid models or individualized 3D models within the target area are acquired, with an aerial photo overlap rate of 75%. The resolution covers various specifications such as 2cm, 5cm, 8cm and 10cm. Model quality: (1) The 3D block models of buildings are complete, with accurate positions and realistic features, consistent with the acquired aerial images; (2) The 3D models of buildings accurately reflect the basic features of building roofs and outlines. When browsing the model at a viewing height of 100 meters, there are no obvious stretching deformations or texture holes in the model; (3) The height and planar dimensions of building models maintain a consistent proportion with the actual situation, and the height error of building models does not exceed 10%.