Geomorphometry from unmanned aerial surveys

机译：来自无人空中调查的地理形状

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Abstract >Unmanned aerial systems (UASs) are widely used for remote sensing, including the production of high‐resolution digital elevation models (DEMs). We study the possibilities of UAS‐based aerial surveys to produce photogrammetrically sound, high‐resolution DEMs intended for geomorphometric modeling. The study was conducted at the Zaoksky testing ground (Russia). To carry out an aerial survey, we used a UAS Geoscan‐101 equipped with a Sony DSC‐RX1 camera and a Topcon GNSS receiver. Aerial photographs were processed using Agisoft PhotoScan Professional software. Applying dense point cloud generation and classification, we produced DEMs with resolutions of 6 cm, 20 cm, and 1 m. Using a universal spectral analytical method, we derived models of several morphometric variables (i.e., slope gradient, horizontal, vertical, minimal, and maximal curvatures) from DEMs with resolutions of 20 cm and 1 m. We found that it is possible to produce noiseless models and well‐readable maps of morphometric variables for grassy areas with separately standing groups of trees and shrubs. However, UAS‐based DEMs cannot be applied for modeling of forested areas: there occur pronounced unrecoverable artifacts due to errors of automated classification of the dense point cloud. Finally, we present recommendations for the production of UAS‐derived, photogrammetrically sound, high‐resolution DEMs intended for geomorphometry. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“main”> <标题类型=“main”>抽象</ title> >无人机（uass）广泛用于遥感，包括生产高分辨率数字高度模型（DEMS）。我们研究了基于UAS的航空调查，在地形造型中产生摄影测量的高分辨率DEM。该研究在Zaoksky检测地（俄罗斯）进行。要进行空中调查，我们使用了配备索尼DSC-RX1相机和Topcon GNSS接收器的UAS Geoscan-101。使用Agisoft Photoscan专业软件处理空中照片。应用密集点云生成和分类，我们生产了6厘米，20厘米和1米的分辨率的DEM。使用通用光谱分析方法，我们从具有20cm和1米的分辨率的DEM衍生几种形态学变量（即，坡度梯度，水平，垂直，最小，最小和最大曲率）的模型。我们发现，对于具有单独站立的树木和灌木的草地和灌木，可以产生无噪声模型和更易读的图案变量映射。然而，基于UAS的DEM不能应用于森林区域的建模：由于密集点云的自动分类错误，发生了明显的不可恢复的伪像。最后，我们提出了用于生产uas衍生的摄影测量型声音，用于地球形状的高分辨率dems的建议。</ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-31674/'>《Transactions in GIS: TG》</a> <b style="margin: 0 2px;">|</b><span>2018年第1期</span><b style="margin: 0 2px;">|</b><span>共24页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Florinsky Igor V.&option=202" target="_blank" rel="nofollow">Florinsky Igor V.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kurkov Vladimir M.&option=202" target="_blank" rel="nofollow">Kurkov Vladimir M.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bliakharskii Dmitrii P.&option=202" target="_blank" rel="nofollow">Bliakharskii Dmitrii P.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Institute of Mathematical Problems of Biology Keldysh Institute of Applied Mathematics Russian Academy of SciencesPushchino Moscow Region Russia;</p> <p>Department of PhotogrammetryMoscow State University of Geodesy and Cartography (MIIGAiK)Moscow Russia;</p> <p>Institute of Earth Sciences St. Petersburg State UniversitySt. Petersburg Russia;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/4940.html" title="测绘数据库与信息系统">测绘数据库与信息系统;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> </p> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704024965655.html">Geomorphometry from unmanned aerial surveys</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Florinsky Igor V.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Florinsky Igor V.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kurkov Vladimir M.&option=202" target="_blank" rel="nofollow" class="tuijian_auth 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