Managing Imagery Using ArcGIS

Managing Imagery Using ArcGIS

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Introduction Introduction Course goals Using the course workbook Additional resources Installing the course data 1 Working with raster data Before we begin... How is raster data represented? Aligning raster data with other spatial data Displaying rasters: Pixel depth Organizing raster into bands Improving performance: Raster pyramids Displaying raster data: Compression Rendering raster datasets using statistics Environment settings: Raster storage Best practices for storing rasters Exercise 1: Work with raster data in ArcGIS Export ASCII DEM data to GeoTIFF format and modify raster storage settings Edit item information for the GeoTIFF image Define a spatial reference of the GeoTIFF image Displaying your raster data Answers to Lesson 1 questions 2 Managing mosaic datasets Organizing rasters as a mosaic dataset Workflow to create a mosaic dataset Layers in a mosaic dataset Optimizing mosaic dataset display: Overviews Mosaic dataset properties Editing footprints Exercise 2: Create a mosaic dataset using orthophotos Create a new geodatabase Create a new mosaic dataset in the geodatabase Add rasters to the mosaic dataset Modify the default properties of the mosaic dataset Edit the boundary and clip the footprint to it Generate overviews i

When do you generate overviews? Answers to Lesson 2 questions 3 Creating a mosaic dataset from multiple datasets Adding rasters Using mosaic methods to control raster order Best practices and tips Exercise 3: Create a mosaic dataset using temporal raster data Explore the raster datasets Create a mosaic dataset in an existing geodatabase Add rasters to the mosaic dataset Create a master mosaic dataset Edit the attribute table and control the order of rasters in a mosaic dataset Query the mosaic dataset using the Time Slider window Choose the appropriate mosaic method Answers to Lesson 3 questions 4 Creating mosaic datasets using elevation data and functions Sources of elevation data Applying functions on elevation data Organizing functions in a function chain Exercise 4: Create mosaic datasets using elevation data Investigate the elevation data Create a mosaic dataset Add SRTM and NED data to the mosaic dataset Create referenced mosaic datasets Add the Lidar DEM to the elevation mosaic Exclude non-data values in the Lidar DEM Set the mosaic method to By attribute with ordering by Pixel Size Use appropriate functions for a scenario Answers to Lesson 4 questions 5 Orthorectifying mosaic datasets How do you orthorectify a raster? ii

Exercise 5: Add GeoEye-1 imagery to a mosaic dataset and applying orthorectification Explore GeoEye-1 image data Orthorectify using RPC information and a DEM Challenge: Create a 4-band mosaic dataset using GeoEye-1 imagery Perform orthorectification on QuickBird imagery using SRTM data Answers to Lesson 5 questions Challenge solution: Create a 4-band mosaic dataset using GeoEye-1 imagery 6 Publishing and serving raster and mosaic datasets Think about... Useful terms What can be published as image services? How do the clients access image services? Publishing raster and mosaic datasets Image service capabilities Image service parameters Image service versus map service Best practices for serving raster and mosaic datasets Exercise 6: Publish and access raster and mosaic datasets Create an image service from a raster Explore the image service in ArcMap Create an image service from a mosaic dataset Explore the mosaic dataset image service properties in ArcMap Preview each raster dataset in an image service Export a portion of the image service (Optional) View the image service in a Web application Determine the appropriate capabilities Answers to Lesson 6 questions 7 Authoring and using cached map services Accelerating display performance - Caching Determine the appropriate type of service needed Creating a cached map service Choosing appropriate storage and image formats Determining cache extent Accessing and using the map cache Tips and best practices for map caches iii

Exercise 7: Create a map cache and access the cached map service Authoring the map Publish a map service in ArcMap Create a map cache Examine the folder structure in the server cache directory View the cached map service in a Web application (Optional) View the cached map service in ArcGIS.com Choosing the best image and storage formats Answers to Lesson 7 questions 8 Accessing and using imagery in ArcGIS Before we begin... Using imagery in ArcGIS Desktop Image Analysis window Using imagery in ArcGIS Explorer Using imagery in ArcGIS Mobile Exercise 8: Use the Image Analysis window to process and analyze imagery Explore elevation services using the Image Analysis window Enhance the appearance of image Apply the Shaded Relief function on the DEM Create a single layer by mosaicking multiple elevation services Compute the difference between the two elevation services Combine raster layers to create a multi-band image Orthorectify the GeoEye-1 imagery Export the data Answers to Lesson 8 questions Appendixes Appendix A: Esri data license agreement Appendix B: Additional lesson resources iv