From oblique photogrammetry to a 3D model - Structural modeling of Kilen, eastern North Greenland

摘要: We present a workflow for building 3D geological models from oblique photogrammetry of outcrops. The is used to build model Kilen, structurally complex and remotely located pseudo-nunatak in eastern North Greenland. area was visited during two brief field seasons which 1300 photographs were taken by hand held digital camera helicopter. photos triangulated georeferenced visible features as bedding faults mapped polylines. polylines calculate strike dip faults, generating large number structural information. These imported into modeling software along with the polylines, an unpublished digitized map, Digital Elevation Model, orthophoto observations. allows us produce 2D cross-sections surfaces so that hypotheses could be tested through restoration extrapolation data. This proved effective improving knowledge remote Arctic, showing it possible quality data those can modeling. making photogrammetry.The area.The greatly helped improve area.