无人机正射影像图的制作

发布时间：2018-02-23 12:48

本文关键词： 无人飞行器空中三角测量特征匹配 DOM　出处：《东华理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着人们对地理环境理解力的提高和对测绘需求的急剧增长，使无人机与测绘的关系越来越紧密。无人机具有高时效、高分辨率、重复使用、低成本、低损耗且风险小等诸多优势,是传统遥感监测平台所无法比拟的，越来越受到研究者和生产者的青睐。为国土资源调查、灾害防治和国民经济建设规划等，提供可靠依据；在其他数据的精度、现势性和完整性的评价方面都有很好的作用；而且可以根据它的信息，进行地图的修测更新。然而无人机空中三角测量系统中影像像幅小，数量多，造成工作量大，像片重叠度，航线弯曲度不规则，这些问题都成了国内外摄影测量系统面对的问题，对于这些问题如何在实际生产中制作高质量数字正射影像图也有一定的研究价值。为解决无人机影像在数据处理过程中存在的问题,论文主要在以下方面展开研究1：（1）本文首先论述了无人飞行器低空遥感系统组成和应用现状，对无人机数据质量进行了探讨；（2）介绍了数字摄影测量的理论基础，本文实验是基于德国空三加密软件Inpho，因此对于Inpho软件在空三加密过程中使用的各种算法进行了介绍。（3）对数字正射影像图的制作流程进行了阐述，分析了数字正射影像图生产工艺中存在的问题和导致其成果质量不高的原因，指出了数字正射影像图制作流程中决定最终成果质量的关键环节，通过实例具体展现了这些关键环节中可能存在的问题，并且针对这些问题给出了相应的解决方法，，从而总结出了在实际生产中制作高质量数字正射影像图的方法和技巧。
[Abstract]:With the improvement of people's understanding of geographical environment and the rapid increase of the demand for surveying and mapping, the relationship between UAV and surveying is becoming more and more close. UAVs have high efficiency, high resolution, reuse and low cost. The advantages of low loss and low risk are unparalleled by the traditional remote sensing monitoring platform, and are more and more favored by researchers and producers. It provides reliable basis for land and resources investigation, disaster prevention and planning of national economic construction. It plays a good role in evaluating the accuracy, present situation and integrality of other data, and can update the map according to its information. However, in the aerial triangulation system of UAV, the image size is small and the number of images is large. These problems have become problems faced by photogrammetry systems both at home and abroad, which result in heavy workload, overlap of photographs and irregular curvature of routes. In order to solve the problem of UAV image processing in the process of data processing, this paper mainly studies in the following aspects: 1. The research on how to make high quality digital orthophoto image in actual production is also valuable. In order to solve the problem of UAV image in the process of data processing, this paper mainly studies in the following aspects: 1. Firstly, the composition and application status of UAV low altitude remote sensing system are discussed, and the data quality of UAV is discussed. This paper introduces the theoretical basis of digital photogrammetry. The experiment in this paper is based on the German Space-3 encryption software Inpho. so the various algorithms used by Inpho software in the process of space-triple-encryption are introduced. In this paper, the production process of digital orthophoto image is expounded, and the problems existing in the production process of digital orthophoto image are analyzed, and the reasons leading to the low quality of the digital orthophoto image are analyzed. This paper points out the key links in the process of making digital orthophoto image that determine the quality of the final result, shows the possible problems in these key links by examples, and puts forward the corresponding solutions to these problems. The methods and techniques of making high-quality digital orthophoto images in actual production are summarized.
【学位授予单位】：东华理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P231

【引证文献】