[Free GPT-4]
P Zhang, Q Zhao, DD Tannant, T Ji, H Zhu - Bulletin of Engineering …, 2019 - Springer
A new methodology is presented for 3-D automated map** of joints that are exposed
primarily as traces in a rock face as opposed to planar facets. The method identifies 3-D …

[PDF][PDF] Digital elevation model and digital surface model

Q Zhou - International Encyclopedia of Geography: People, the …, 2017 - researchgate.net
A digital elevation model (DEM) is one of the most important spatial datasets in many
geographical information systems (GIS). It is defined as an ordered or unordered digital set …