Fig. 5From: UAV- based Photogrammetry and Geocomputing for Hazards and Disaster Risk Monitoring – A ReviewExperiment of floodplain evolution monitoring using the 4D SfM method. a DEM evolution of the floodplain between time t = 0 min and t = 40 min.; b shaded relief of the DEM data at t = 00 min; c 3D mesh visual of the river-table; d sample photograph before lightning adjustment showing the difficulties of lighting reflection over waterBack to article page