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- 大倾斜航空摄影自动快速镶嵌模型的研究与实现
- 作者： 唐彬 来源： 北京理工大学 年份： 2016 文献类型 ： 学位论文 关键词： 几何模型 镶嵌模型 大倾斜 航空摄影
- 描述： 倾斜摄影往往导致地物较大的几何变形，难以直接利用传统的数字图像镶嵌方法进行镶嵌。本文提出了一种非常规的近似镶嵌模型，很好地保持了地物与观察者的相对位置关系及地物之间的大致位置关系，并且在采用相机的飞行参数来确定旋转角度的基础上，利用稳健的基于小波变换的层次图像匹配技术来确定图像中的平移量。这对满足不能造成目标丢失、不能造成目标压盖以及目标的变形必须很小这三个要求起到了决定性的作用；该模型已经成功应用于某军用航空相机远距离倾斜摄影的光学图像自动快速镶嵌系统。Slope photography usually leads to bigger geometrical distortion on ground objects， which is difficult to directly use a traditional mosaic method on digital image with slope photography mosaic。In this article，a unconventional approximate mosaic model is presented，which keeps the relatively positional relations between objects on the ground and the observer，It also keeps the approximately positional relations among objects on the ground，And based on the fact that the flight parameters of cameras can determine the rotate angle。It can determine the translation of image by the level image matching technology，which is based on the wavelet transform。It plays a decisive role to meet with the requests，which are that it can't lost the goals and not cover other goals and the deformation of goals must be small；The model has been applied successfully on automatically and fast Mosaic system equipped on some military aerial camera，whose goal is to deal with the Optical Image shooting remotely and slope photography。