Seamless Mapping of River Channels at High Resolution Using Mobile LiDAR and UAV-Photography

Remote Sensing

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, Finland; E-Mails:;Department of Geography and Geology, University of Turku, FI-20014 Turku, Finland; E-Mails:;Department of Real Estate, Planning and Geoinformatics, School of Science and Technology, Aalto University, FI-00076 Espoo, Finland; E-Mails:

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