I have two point clouds obtained via structure from motion (ground photos of sand-dunes + Visual SfM/Agisoft Photoscan).
If I wanted to generate a DEM from these point clouds and difference them to look at elevation/sediment change, how would I go about doing this?
Is there any free software that can achieve this easily? I am a beginner at using GIS software.
At the moment I am using the free trial of Agisoft Photoscan, which can export the point cloud in Wavefront OBJ, Stanford PLY, XYZ text file, U3D, ASPRS LAS, and PDF formats.