Robert Niederheiser and his colleagues published their work about mapping high-resolution topography of vegetation locations in high mountain areas. Close-range sensing by photogrammetric dense matching approaches based on terrestrial images captured with hand-held cameras offers a light-weight and low-cost solution to retrieve high-resolution measurements even in steep terrain and at locations, which are difficult to access. They propose a novel approach for rapid capturing of terrestrial images and a highly automated processing chain for retrieving detailed dense point clouds for topographic modelling.
http://www.sciencedirect.com/science/article/pii/S0303243417302702