| 基于对偶四元数的不同地形无人机影像区域网平差解算方法 |
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| 引用本文： | 叶茂.基于对偶四元数的不同地形无人机影像区域网平差解算方法[J].地理信息世界,2017,24(3). |
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| 作者姓名： | 叶茂 |
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| 作者单位： | 中铁第一勘察设计院集团有限公司,陕西西安,710043 |
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| 基金项目： | 国家自然科学基金项目，数字制图与国土信息应用工程国家测绘地理信息局重点实验室开放基金项目，国土资源部地学空间信息技术重点实验室开放基金项目 |
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| 摘 要： | 随着对地观测技术的发展,通过各种传感器获取的影像越来越多。无人机遥感技术以其方便、快捷、成本低、可云下飞行的优势正越来越多地运用到铁道沿线信息的获取中,为保证后续分类、信息提取、面积量算的精度,对无人机影像进行区域网平差具有重要意义。考虑到无人机影像具有像幅小、数量多、基线短、重叠度不规则等特点,将对偶四元数引入到无人机影像定向过程中,提出了一种利用对偶四元数进行无人机影像区域网平差解算的方法,并针对不同地形区域的无人机影像进行实验。实验结果表明:本文提出的算法应用到无人机影像区域网平差中,精度与常规光束法区域网平差相当,所需像控点数量及分布与常规光束法区域网平差相当,本文研究为提高无人机影像区域网平差的解算效率探索了一种新思路。
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| 关 键 词： | 无人机影像 对偶四元数 区域网平差 平差精度 不同地形 |
Block Adjustment Method of Different Terrain UAV Imagery Based on Dual Quaternion |
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| YE Mao.Block Adjustment Method of Different Terrain UAV Imagery Based on Dual Quaternion[J].Geomatics World,2017,24(3). |
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| Authors: | YE Mao |
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| Abstract: | With the development of earth observation technology,more and more kinds of images were obtained through al1 sorts of sensor.Unmanned aerial vehicles (UAV) have been increasingly used for railway information acquisition in recent years as their greater availability,the miniaturization of sensors,and the ability to deploy UAV relatively quickly and repeatedly at low altitudes.In order to ensure the subsequent classification,information extraction,area precision of measurement,block adjustment of UAV images has a great significance.Considering UAV image has the features like small amplitude,large amount,short baseline and irregular overlap,dual quatemion is introduced into the process of UAV image orientation.UAV images block adjustment based on dual quatemion is proposed,and according to the different terrain regions of UAV image experiments are performed.The experimental results show that the proposed algorithm is applied to the UAV image block adjustment,the precision and block adjustment,the requirement of control points and distribution and block adjustment are fairly to the conventional method.This paper provides a new way for block adjustment of UAV images. |
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| Keywords: | UAV imagery dual quaternion block adjustment adjustment precision different terrain |
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