OPALS - Orientation and Processing of Airborne Laser Scanning data

Scripts and Modules of Package opalsGeoref
Python Scripts	Description
grfApprox.py	proxy class for packages.python.grfApprox
grfExport.py	proxy class for packages.python.grfExport
opalsGeoref.py	proxy class for packages.python.opalsGeoref
qltLSM.py	proxy class for packages.python.qltLSM
Modules	Description
Colorize
DirectGeoref	Transforms points from scanner coordinates into geo-referenced coordinates by applying the sensor model (flight trajectory, mounting parameters).
Export	Exports vector data stored in an OPALS data manager (ODM) in various data formats.
GeorefApprox	Improves the geo-referencing of an ALS flight block based on pairwise affine strip transformations (cf. Module LSM).
Grid	Derives a 2.5D digital elevation models (DEM) in regular grid structure using simple interpolation techniques.
Histo	Derives histograms and descriptive statistics (min, max, mean, r.m.s, etc.) for ODM or grid/raster data sets and stores the results graphically (SVG) and numerically (XML).
ICP	Performs orientation (co-registration) of multiple point cloud datasets using the Iterative Closest Point algorithm.
Import	Loads vector and raster data into an ODM for subsequent use in modules dealing with point cloud and line related data.
Info	Extracts and reports header information of a vector or raster file (ODM, GDAL).
LSM	Estimates an affine 3D transformation to align overlapping ALS strip DEMs using Least Squares Matching.
Rasterize	Performs vector-to-raster conversion for all types of simple feature geometries (points, lines, polygons).
StripAdjust	Improves the geo-referencing of ALS data and aerial images in a rigorous way combining strip adjustment and aerial triangulation.
Translate	Performs format conversion for vector data files with additional read support of GDAL rasters.
Vectorize	Performs raster-to-vector conversion and exports polyline geometries.
View	Provides an interactive 3d viewer for points (including arbitrary attributes) and lines.
ZColor	Derives color coded visualizations of grid models and stores them as geo-coded raster images.