Download Raster Data Management/Image Server

Raster Data Management/Image Server
9.2 Additions/Changes to Raster
Data Management
• It is now possible to do orthorectification in
ArcMap, image/raster must have RPC (rational
polynomial coefficients) and you need a DEM
• You can now generate a hillshade on the fly,
without the need for the spatial analyst extension
(check box in symbology tab)
• Creation of Terrain dataset, used to store massive
amounts of surface data.
– TIN based
– Must be stored in a Geodatabase dataset (personal, file,
SDE)
– 3D analyst is used to create a Terrain
• You can generate a DEM from a Terrain and use it
to perform different raster analysis functions
Quick Facts on ArcGIS Image
Server
• Provides fast access to imagery
– Sensor to server
– Server to screen
• Can read variety of different types
• Reduces storage, by cutting down on redundancy
– Imagery can be resampled on the fly, with Image Server there
is no need to store grayscale and color imagery, or varrying
levels of compression.
• Compression for storage is independent from compression
for transmission, client can control compression level to
balance performance with image quality
• Orthorectification, enhancement, and mosaicking can be
performed with Image Server on the fly
– Could mean quicker delivery of imagery to data partners
– Seamlessly integrate rectified imagery with service once it is
available
Viewpoints, potential Oblique
Imagery layers with Image Server
• Image Server
handles overlapping
images with what
they call viewpoints.
– Viewpoints allow
different views of the
same location when
overlapping imagery
is present.