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Advanced Image Management using the Mosaic Dataset

July 25, 2012. Advanced Image Management using the Mosaic Dataset . Vinay Viswambharan, Mike Muller. Agenda. ArcGIS Image Management. Concepts and Terminology Image Management Challenges Image Management using ArcGIS LiDAR Data Management using ArcGIS Esri Projects.

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Advanced Image Management using the Mosaic Dataset

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  1. July 25, 2012 Advanced Image Management using the Mosaic Dataset Vinay Viswambharan, Mike Muller

  2. Agenda ArcGIS Image Management • Concepts and Terminology • Image Management Challenges • Image Management using ArcGIS • LiDAR Data Management using ArcGIS • Esri Projects

  3. Concepts and Terminology

  4. What is Imagery in ArcGIS? • ArcGIS is the leading Geographic Information System • ArcGIS has supported Raster Data for decades • Visualization, Analysis, Data Management • Imagery is Raster Data • Imagery is part of the core information model in ArcGIS Imagery / Raster Data are not new to ArcGIS…

  5. Imagery is Raster Data • ArcGIS supports imagery • Aerial Photography • Satellite Imagery • Thermal Imagery • Digital Elevation Models • Scanned Maps • RADAR • Thematic Images (e.g. classification results with attributes) • Analysis Surfaces (e.g. interpolated surfaces from points) ArcGIS works with all types of Raster Data…

  6. History of ArcGIS and Imagery ArcGIS continues to evolve as an imagery system…

  7. Describing the Capabilities Trend • When we think of “imagery”, we think sensor • A more capable system needs a rich information model to be more intelligent with sensor data • Advancements in the ArcGIS imagery information model describe this capabilities trend ArcGIS 10.1 has a comprehensive imagery information model…

  8. Raster Dataset • Primary information model to read and write raster storage (pixels) • Comprehensive • 1 or N Bands • 1-64 bits per band • compressed or uncompressed • 80+ formats supported • pyramids (rrd, ovr, internal…) • Read directly – no need to convert ArcGIS supports working with individual images…

  9. Raster Type • Defines rules for ingesting imagery • Sensor specific • Defines processing chains • Defines pixel storage and metadata schema • Defines georeferencing LAS WorldView-1 HRE Landsat 1-5 MSS CIB Ikonos GeoEye-1 Formosat-2 DTED SPOT 5 Landsat 1-5 TM Landsat 7 ETM+ Radarsat 2 WorldView-2 Kompsat-2 Quickbird CADRG/ECRG

  10. Raster Function • A function that can be applied to a pixel or block of pixels • Machinery behind “on-the-fly” processing • Chained together to create “processing chains” • Geometric or Radiometric • 38 out-of-the box • Developers can extend ArcGIS image processing by implementing a Raster Function ArcGIS processes imagery “on-the-fly” …

  11. Raster Product • Easy to use shortcuts to well known band combinations and processing chains • Users don’t need to understand all the constituent files associated with an image product ArcGIS makes it easier to work with well known image products…

  12. Mosaic Dataset • A mosaic dataset is a geodatabase data model for the management and access of small to vast collections of imagery (raster data) • A catalog of imagery that stores references to imagery, while ingesting and storing all associated metadata • Flexible dynamic mosaicking • “on-the-fly” processing chains ArcGIS image management is centered around mosaic datasets…

  13. Image Service • Provides access to imagery (raster data) through a Web Service • “Web enabling” imagery • single images • large collections using mosaic datasets • Support dynamic processing • Standards - Esri, WMS, WCS, KML • APIs - REST, SOAP, ArcObjects Powered by ArcGIS for Server…

  14. Image Service More than a picture or basemap… Access imagery as an image (visual analysis) Access imagery as raster data (pixel analysis, DNs) Access imagery as a catalog (collection with metadata)

  15. Image Management Challenges

  16. Image Management Challenges • Multiple Formats • Multiple Sensors • Processing requirements vary • Products delivered as collections of files • Metadata organization and format • Storage • Massive collections • Dissemination of derived products

  17. ArcGIS Addressing Image Management Challenges = Raster Dataset • Multiple Formats • Multiple Sensors • Processing requirements vary • Products delivered as collections of files • Metadata • Storage • Massive collections • Dissemination of products = Raster Type = Raster Function = Raster Product = Raster Type, Mosaic Dataset = Mosaic Dataset = Mosaic Dataset = Image Service

  18. Image Management using ArcGIS

  19. Image Management Tools • Built on ArcGIS Geoprocessing • More than 80 tools for image management and processing • Authoring Mosaic Datasets and Image Services • Format Conversion • Compression • Statistics Calculation • Pyramid Building • Clipping / Spatial / Spectral Subsetting • More… ArcGIS’ Geoprocessing is a proven processing framework for geospatial data…

  20. Mosaic Dataset Dynamic Mosaicking By default users see best available imagery Fuse of overlapping imagery from multiple sources User control of image order User control of resolving overlapping pixels “on-the-fly” mosaicking

  21. Mosaic Dataset Dynamic Mosaicking Mosaic Methods Defines the order in which images are selected Closest to Center:closest to the view center are placed on top Closest to Nadir:distance between the nadir position and view center Closest to Viewpoint:North, South, East, West By Attribute:“ORDER BY Sun Angle”, “ORDER BY Acquisition Date” NorthWest:centers to the northwest are displayed on top Seamline:feathered blend using a predefined seamline shape Lock Raster:display a single or multiple rasters using identifier None:order in the catalog

  22. Mosaic Dataset Dynamic Mosaicking Mosaic Operators Defines how overlapping pixel are resolved FIRST MIN LAST MAX BLEND MEAN distance weighted algorithm

  23. Mosaic Dataset on-the-fly processing Raster Types provide default processing Author can build processing chains Raster Functions chained together Can be applied to Mosaic Dataset Raster(s) in a Mosaic Dataset Raster(s) in Desktop

  24. Mosaic Dataset on-the-fly processing Non-destructive No need to alter source images or create derived intermediate images Create multiple products from the same source images without storage costs of intermediate imagery

  25. Mosaic Dataset Solves image management challenges Time Ingest imagery closer to the sensor / time of acquisition and process on-the-fly No need to alter source images or create derived intermediate images Money Reduced storage costs Easier to manage large collections (automate maintenance) Value Create multiple derived products from a single source Catalog your withholdings Easy access to metadata Manage large multi-resolution, multi-sensor, disparate datasets in a single collection Processing results are immediately visible without having to wait for persistent representations

  26. Mosaic Dataset Demonstration VinayViswambharan

  27. LiDAR Data Management using ArcGIS

  28. Managing Large Collections of LAS • LAS files can be ingested into a Mosaic Dataset • using LAS Raster Type • configurable (e.g. cell size, return to use, void filling…) • Users work with the raster representation or download the source LAS files

  29. LAS Data Management Workflow Visualization & Analysis Large Collections of LAS files Raster Data Consumers QC Mosaic Dataset Visualization & Analysis Share as Image Service Data Managers Download Project LAS files LAS Dataset Directly accessed Project LAS files • Visualize • Analyze • Edit / Reclassify / Constraints • Geodatabase Terrains LAS Data Consumers

  30. Mosaic Dataset & LAS Demonstration VinayViswambharan

  31. Esri Projects

  32. Landsat Services • Access to USGS Global Land Survey for ALL EPOCHS • 1975, 1990, 2000, 2005, 2010 *new • 50 Dynamic Image Services • not just tiled basemaps • 10 TB of imagery • FREE! • http://www.esri.com/landsat • Powered by ArcGIS 10.1 Esri is hosting imagery using ArcGIS 10 & 10.1…

  33. IKONOS World Imagery Updates… • Project Scope • 50 million sq. km. of imagery • Select “Best Of” 2 million IKONOS scene archive • Select -> Ortho -> Color Balance -> Mosaic -> Cache to Basemap • 300k scenes processed and growing • Total Raw Data = 152 TB Esri is hosting imagery using ArcGIS 10 & 10.1…

  34. Coming Soon… • Digital Globe / GeoEye / Esri Partnership • Best of Hi-Res Satellite • Aerial 30cm US, 60cm Europe • ArcGIS Online imagery content will continue to grow… Esri is hosting imagery using ArcGIS 10 & 10.1…

  35. Steps to evaluate UC sessions • My UC Homepage > “Evaluate Sessions” • Choose session from planner OR • Search for session www.esri.com/ucsessionsurveys

  36. Thank you for attending • Have fun at UC2012 • Open for Questions • Please fill out the evaluation: • www.esri.com/ucsessionsurveys • Offering ID: 881

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