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Revision as of 12:28, 24 August 2011
Content
Overview of all pages in this category
Lecture 1
Open source concepts, installation of QGIS and GRASS 6.4 under Windows XP and other OS
Lecture 2
First steps in GRASS using the GRASS plugin, planning a GRASS project area, region settings, deleting maps and projects
Lecture 3
Georeferencing of topographic raster maps as basic information, geocoding of aerial photos
Lecture 4
WebGis and Database applications, coordinate and datum transformations. Assigning color tables, image statistics, histogram, color composites, subsets and multilayer stacking
- Load a WMS-Layer
- OpenStreet Map layer
- Reprojection of vectors
- Reprojection of rasters# Color tables
- Color composites
Lecture 5
Import and processing of digital terrain models (DTM), filling missing values, DEM profiles, calculating slope, aspect and contour lines, 3D visualization and shaded relief
- Creating a DEM from vector data
- The Profile plugin
- Terrain analysis
- Evaluation of digital elevation models
Lecture 6
Download and Processing of GPS data. Geocaching, GPS tracking, creation of waypoints, updating Open Street Map layers
- The GPS tools plugin
- Defining an own custom Spatial Reference System (SRS)
- Creating GPS waypoints
- Outdoors with the GPS receiver
- Using the GPS Tracking Plugin
- Download from GPS receiver
- Digital photo links with the eVIS plugin
Lecture 7
Radiometric corrections, atmospheric effects. Introduction to raster algebra, atmospheric effects, cloud masking and haze reduction, image fusion (IHS, Brovey)
Lecture 8
Vegetation indices, tasseled cap transformation
- Principal components analysis (PCA)
- Normalized Difference Vegetation Index (NDVI)
- Image subtraction
- Spectral ratioing
- Tasseled cap
Spatial filtering
- Geometric feature analysis with matrix filters
- Defining filters
- Low pass filter
- High pass filter
- Edge detection
- Texture features
Lecture 9
Theory of vector topology, visual interpretation of remote sensing imagery, mapping of land cover polygons and roads, topology management
Digitizing
Sampling tools
- Random sampling
- Systematic sampling with circular sampling plots
- Construction of a regular grid
- Using external information sources as reference for training site delineation
- Digitizing reference areas
Lecture 10
Intro to classification methods in remote sensing, pixel-based unsupervised methods, the maximum liklihood algorithm
- Creating groups and subgroups of image bands
- Unsupervised classification
- Supervised Maximum Likelihood Classification
Lecture 11
Supervised classification, accuracy statistics
Lecture 12
Change detection techniques and hardcopy map production
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