voms & doms in structural geology...voms & doms in structural geology dr. bianca wagner...
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VOMs & DOMs in Structural Geology
Dr. Bianca Wagner
Universität Göttingen
3. Arbeitstreffen zu “3D-Geländemethoden in den Geowissenschaften”
LIDAR “ATLS”
VIS “RGB”
NIR SWIR TIR
LIDAR “TLS”
VIS “RGB”
NIR/ SWIR
TIR
passive
active
reflective
emissive
Sensors
x, y, z, R, G, B, i(NIR), NIR(λ), SWIR(λ), TIR(λ) tx
tx-1
tx+1 x, y, z, R, G, B, i(NIR), NIR(λ), SWIR(λ), TIR(λ)
x, y, z, R, G, B
x
point cloud
point cloud (normals)
mesh textured mesh
DEM ortho- image
+ z
Data acquistion
Data dimensions
Data types
Methodological workflows
Documentation
Visualization
Semi-automatic feature extraction
Spectral analysis
Manual structural analysis
“Point picking” points
lines planes
faults
folds
bedding fractures
schistosity
RGB
Intensity
multispectral
hyperspectral
rock type
alteration zones
weathering
points
lines planes edges roughness
outcrop geometry
additional data
database
comparability
AR VR Animation Virtual
landscapes Teaching
Thematical workflows
Active deformation
?
Fault analysis
Fracture network
extraction
Fold analysis
Fault analysis
Extr
acti
on
Reco
nstr
ucti
on
+ field data
points lines
points lines (planes)
points lines (planes)
points, lines surfaces
bedding fault plane
generalized
thickness variations
thickness
detailed
fault orientation fault type fault displacement slip sense
fault surface characterisation
generalized detailed
Extr
acti
on
Reco
nstr
ucti
on
Fold analysis
+ field data
points lines
points lines (planes)
points lines (planes)
points, lines surfaces
bedding fold axis
generalized
thickness variations
thickness
detailed
fold orientation fold type
fold surface characterisation
generalized detailed
Fracture network extraction
point cloud
point cloud (normals)
mesh textured mesh
DEM ortho- image
+ z
Data sources Starting points
on the plane or at the edges
sharp to smooth edges
irregular shape
any orientation
various amounts of small-scale roughness
large-scale undulations
Preprocessing
smoothing noise removal decimating or nothing
Useful workflows
Input data
Result/ Product
Algorithms Software Data types File formats
Correction Normalization Georeferencing Reduction
Preprocessing Data analysis
Data storage
Documentation
Visualization
Distribution
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