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Joseph B Bowles
Managing Imagery and LiDAR
Local Government Needs
• Store and manage Imagery/LiDAR
• Disseminate as a basemap (web, desktop)
• Imagery/LiDAR distribution
• Serve to CAD or Non-GIS clients
• Feature creation/update
• Historical analysis and management
• Image Analysis (impervious surface mapping, image
classification)
• Image processing
Local Government Concerns
• Cost of Image Acquisition
• Lack of Storage Space
• Performance
• Public Requests
• Requests from other Gov’t entities
• Historical imagery request, processing and
management
ArcGIS for Imagery
Management
Dissemination
Visualization
Analysis
What is a Mosaic Dataset?
• Catalog of
- Imagery
- Associated metadata
- Processing functions to be applied
• Stored in Geodatabase
• Authored using ArcGIS for Desktop
• Enables
- Dynamic Mosaicking
- On-the-fly processing
Demonstration
Creating a Mosaic Dataset
Serving Imagery
2 Ways to Serve Imagery
• Directly from individual raster dataset
• From mosaic dataset (requires image extension)
Image.tif
Image1.tif
Image2.tif
Image3.tif
Mosaic
Dataset
Publish to Server
Publish to Server
Image Extension
On-The-Fly Processing
Creating Multiple Products from a Single Source
• Processes
• Extract Bands
• Hillshade, Shaded Relief
• Stretch
• Applied to
• Individual rasters
• Compete Mosaic
• Mosaic imagery from multiple tiles
• User can query mosaic
• Year = 2009
Dynamic Mosaicking
Mosaicking Multiple Images On Demand
2005
2007
2009
Demonstration
Serving Imagery
Visualizing Imagery
Desktop
Mobile
Web
One click access to common imagery tools
Image Analysis Window
• Enhancement
- Contrast, Brightness, Gamma,…
- Dynamic Range Adjustment
• Interpretation
- Sharpen, Top is Up,…
• Processing Functions
- Clip, Mask
- StackBands, NDVI,
- Orthorectify, PanSharpen ….
• Has its own Layer List
• Access to accelerate display
Demonstration
Visualization
Image Analysis
• Image Classification Tools
• Change Detection Workflows
• Geoprocessing Tools
Demonstration
Analysis
Questions