کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5781397 1636009 2017 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Using unmanned aerial vehicles and structure-from-motion photogrammetry to characterize sedimentary outcrops: An example from the Morrison Formation, Utah, USA
ترجمه فارسی عنوان
با استفاده از وسایل نقلیه هوایی بدون سرنشین و فوتوگرامتری از ساختار حرکتی به منظور تشریح رسوبات رسوبی: نمونه ای از سازند موریسون، یوتا، ایالات متحده آمریکا
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
Recently developed data collection techniques allow for improved characterization of sedimentary outcrops. Here, we outline a workflow that utilizes unmanned aerial vehicles (UAV) and structure-from-motion (SfM) photogrammetry to produce sub-meter-scale outcrop reconstructions in 3-D. SfM photogrammetry uses multiple overlapping images and an image-based terrain extraction algorithm to reconstruct the location of individual points from the photographs in 3-D space. The results of this technique can be used to construct point clouds, orthomosaics, and digital surface models that can be imported into GIS and related software for further study. The accuracy of the reconstructed outcrops, with respect to an absolute framework, is improved with geotagged images or independently gathered ground control points, and the internal accuracy of 3-D reconstructions is sufficient for sub-meter scale measurements. We demonstrate this approach with a case study from central Utah, USA, where UAV-SfM data can help delineate complex features within Jurassic fluvial sandstones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sedimentary Geology - Volume 354, 1 June 2017, Pages 1-8
نویسندگان
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