基于无人机航摄的真正射影像图制作方法与实践
Method and Practice of Making True Orthoimage Production Based on UAV Aerial Photography

随着无人机航空摄影的不断发展和成熟，利用无人机航摄制作高分辨率数字正射影像图在空间信息领域中的应用非常广泛。传统正射影像由于存在投影差导致建筑物倾斜、遮挡严重等问题，而数字真正射影像图能很好地解决这些问题。本文叙述了采用传统正射摄影和基于倾斜摄影三维模型制作真正射影像图的两种方法和实践，总结无人机航摄影像制作真正射影像的作业流程和关键技术。
With the development and maturity of UAV aerial photography, the use of UAV aerial photography to produce high-resolution digital orthophoto is widely used in the field of spatial information. The traditional orthophoto has some problems, such as building incline and block seriously, due to the poor projection, but true orthoimage production can solve these problems well. This paper describes two methods and practices of making true orthoimage production by using traditional orthographic photography and oblique photography 3D model, and summarizes the operation flow and key techniques of making true orthoimage production by UAV aerial photography.