Remote Sensing | |
Seamless Mapping of River Channels at High Resolution Using Mobile LiDAR and UAV-Photography | |
Claude Flener2  Matti Vaaja3  Anttoni Jaakkola1  Anssi Krooks1  Harri Kaartinen1  Antero Kukko1  Elina Kasvi2  Hannu Hyyppä3  Juha Hyyppä1  | |
[1] Department of Remote Sensing and Photogrammetry, Finnish Geodetic Institute, P.O. Box 15, FI-02431 Masala, |
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关键词: UAV; mobile laser scanning; LiDAR; photogrammetry; optical bathymetry; seamless DTM; DTM; elevation; river; Finland; | |
DOI : 10.3390/rs5126382 | |
来源: mdpi | |
【 摘 要 】
Accurate terrain models are a crucial component of studies of river channel evolution. In this paper we describe a new methodology for creating high-resolution seamless digital terrain models (DTM) of river channels and their floodplains. We combine mobile laser scanning and low-altitude unmanned aerial vehicle (UAV) photography-based methods for creating both a digital bathymetric model of the inundated river channel and a DTM of a point bar of a meandering sub-arctic river. We evaluate mobile laser scanning and UAV-based photogrammetry point clouds against terrestrial laser scanning and combine these data with an optical bathymetric model to create a seamless DTM of two different measurement periods. Using this multi-temporal seamless data, we calculate a DTM of difference that allows a change detection of the meander bend over a one-year period.
【 授权许可】
CC BY
© 2013 by the authors; licensee MDPI, Basel, Switzerland
【 预 览 】
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RO202003190031041ZK.pdf | 4229KB | download |