基于沙盘模型的室内摄影测量实验系统建设的问题分析

发布时间：2018-03-08 21:28

本文选题：室内摄影测量　切入点：空中三角测量　出处：《东华理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着摄影测量技术的不断发展其应用范围愈加广泛,为解决摄影测量教学与实际工作脱轨的情况,建设了室内摄影测量实验系统。但是室内摄影测量实验系统处于密闭空间内,造成模拟飞行相对航高严重受限。相对航高过低使得获取的航片受到地形起伏的影响,出现像点偏移。在重叠度一定的情况下如何获取达到精度要求的影像。必须考虑到此类问题从而实现室内摄影测量实验系统的建设。为解决基于沙盘模型的室内摄影测量实验系统建设中出现的问题,论文主要研究内容如下:(1)本文通过分析摄影测量教学现状进行室内摄影测量实验系统总体结构设计。研究实验系统结构,设计摄影测量室内实验流程。结合实验工作内容全面阐述了相机的畸变误差、像控点的布设原则和空中三角测量相关理论并进行实验操作。(2)基于室内摄影测量实验系统,分析地形高差对影像的影响,探索重叠度与地形起伏的相对关系,进行地形模型的设计。通过对立体量测进行分析得到重叠度对点位高程精度的影响程度。并基于室内摄影测量实验系统设计了像控点布设方案。(3)最后以实验系统获取的影像数据为基础布设了6类像控点方案。并利用Geolord-AT空中三角测量软件进行数据处理,获取了各类方案下的光束法区域网平差的定向点和检查点精度。进行对比分析得出在测区四边加中心点布设方案效果最佳。
[Abstract]:With the continuous development of photogrammetry technology and its application range more widely, in order to solve the teaching of photogrammetry and practical work of the construction of derailment, indoor photography measurement system. But the indoor photography measurement system in a confined space, resulting in simulated flight relative flight height is severely limited. Relative flight height is too low so that the aerial gets affected the terrain, like point offset. How to obtain the accuracy of images in a certain degree of overlap. Such problems must be considered in order to achieve indoor photography measurement system construction. In order to solve the construction of indoor photography measurement system sand table model based on the problems, the main contents of this thesis are as follows: (1 in this paper, the overall structure of the indoor photography) measurement system design through the measurement and analysis of teaching situation of photography. Experimental study on the system structure, design Photogrammetry laboratory process. Combined with experimental work comprehensively expounded the distortion error of the camera, like the layout principle and aerial triangulation theory of control points and the experimental operation. (2) indoor photography measurement system based on analysis of the influence of terrain elevation of the image, to explore the relative relationship between the overlap degree and topography, are the design of terrain model. Analyze and obtain the overlap point of elevation accuracy influence. Based on the three-dimensional measurement and indoor photography measurement system is designed based on control point layout scheme. (3) the image data acquisition system based on the experimental layout of 6 kinds of image control points and solutions. The data processing using Geolord-AT aerial triangulation software, the precision of orientation points bundle area network scheme under various adjustment and inspection points. Were analyzed in the survey area in four The center point layout scheme has the best effect.

【学位授予单位】：东华理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P23

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