View
0
Download
0
Category
Preview:
Citation preview
Data Knowledge Information
GEOMETRIC-TOPOGRAPHIC DISTORTIONS
Ortho satellite images
SRTM (Shuttle Radar Topography Mission)
DNs DNs
Edge DetectionLakes & Streams
Edge DetectionFractures & Shoreline
Edge Detection of Fields
Topeka, Kansas: Color IR composite showing unstretched data
Topeka, Kansas: Color-IR composite showing linear contrast stretch with 2% saturation
IMAGE ENHANCEMENTS
A2D
• Unsupervised classification:
Pixels DN-based classes
Assign names to
classes
Named classes
Training sites
Classified image
Objects identified
Image segmented into blocks
Blocks assigned to
classes
Image segmented into blocks
Objects identified
Blocks assigned to
classes
Changes in rangelandaround Lethbridgefrom 1986 to 2009
Recommended