%0 Journal Article
%T Seamless Mapping of River Channels at High Resolution Using Mobile LiDAR and UAV-Photography
%A Claude Flener
%A Matti Vaaja
%A Anttoni Jaakkola
%A Anssi Krooks
%A Harri Kaartinen
%A Antero Kukko
%A Elina Kasvi
%A Hannu Hyypp£¿
%A Juha Hyypp£¿
%A Petteri Alho
%J Remote Sensing
%D 2013
%I MDPI AG
%R 10.3390/rs5126382
%X 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.
%K UAV
%K mobile laser scanning
%K LiDAR
%K photogrammetry
%K optical bathymetry
%K seamless DTM
%K DTM
%K elevation
%K river
%K Finland
%U http://www.mdpi.com/2072-4292/5/12/6382