ESRI’s ArcGIS Image Server 9.2 Dynamically Serves Up and Processes Large Volumes of Imagery

ESRI’s ArcGIS Image Server 9.2 Dynamically Serves Up and Processes Large Volumes of Imagery

Welcome to GISWeekly! Happy New Year! Some long-awaited product announcements came just before or during the holiday season, among them the ArcGIS Image Server 9.2, subject of this week’s feature story.

ArcGIS Image Server 9.2 is a new product focusing on the integration of imagery and GIS, which is now available. Discussed for a couple of years at the ESRI User Conference, Image Server 9.2 offers the ability to serve and process large volumes of imagery enterprise-wide, quickly and seamlessly.

Read about this new product in this week’s Industry News.

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Industry News
ESRI’s ArcGIS Image Server 9.2 Dynamically Serves Up and Processes Large Volumes of Imagery

by Susan Smith

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ArcGIS Image Server 9.2 is a new product focusing on the integration of imagery and GIS, which is now available. Image Server, discussed for a couple of years at the ESRI User Conference, offers the ability to serve and process large volumes of imagery enterprise-wide, quickly and seamlessly.

According to the press release, ArcGIS Image Server 9.2 offers these features:

  • open access from various GIS and non-GIS clients (e.g. CAD)
  • on-demand, dynamic server-based processing for image display
  • scalability that supports extensive volumes of imagery as well as many users
  • integration with ArcGIS Server for data distribution to web, mobile and OGC compliant clients
  • quick, seamless access to imagery and associated metadata.

    The new product supports

  • The ArcMap and ArcGlobe applications in ArcGIS Desktop as well as ArcGIS Server and ArcIMS
  • CAD clients such as AutoCAD and MicroStation
  • Open standards such as WMS and HTML viewers via ArcGIS Server

    It was stated at a presentation at ESRI UC 2006 that, time is your challenge if you use imagery, and critical is the time it takes to move imagery from the sensor onto the web and into the context of GIS where it takes on meaning.

    A demonstration illustrated how Image Server 9.2 meets this challenge.

    In emergency response, emergency preparedness or planning, as long as things are changing on the ground, the timeliness of imagery is critical. In this demonstration a mission was planned, handed off to the pilot, who flew 130 square miles of 1 foot imagery over Hillsborough County, Fla. The pilot flew it with a DSS direct georeferencing sensor built by Trimble. When the disc drive was recovered off the sensor, the attitude and positioning information was with each frame of the imagery. Image Server was able to take that data and serve it out orthorectified.

    In another part of the demonstration, a seamless mosaic of Landsat imagery over the Florida peninsula is being served to ArcMap, acting as a client. While zooming in on Hillsborough, you can see the footprints associated with the 130 square mile collection. As you zoom in further, Image Server is serving up a seamless orthomosaic, the imagery on disc is unrectified as it came off the sensor, but you see an orthorectification presented seamlessly. When you zoom in again, you also see parcels from the Hillsborough County Parcel database perfectly overlaid on the imagery, a “testament” to the on-the-fly processing of Image Server.

    Another demonstration illustrated authoring and serving a collection of 6 inch imagery in Image Server. Using the Image Service Editor toolbar in ArcMap, you can create an image service and make changes to service properties, add to the table of contents, point to all the local data in your disc drive. While browsing through the directory on the drive, Image Server reads all the images on the disc as exterior orientation information and all metadata associated with each image. It then creates shapefiles and adds them to the map. You can build and compile the service, which is Image Server calculating each of the statistics needed to run the service, and finally you can use the preview function to make sure the quality control is set for the service you’ve created. Once that is done, you’re ready to publish and serve this service using the ArcGIS Image Service Manager.

    Moving into ArcMap as a client, you then add that service in like any layer into the client application and you’re able to serve that into the view. If you look at properties associated with this service, you can see metadata associated with this imagery. It’s not just the service as a whole but it’s each individual frame making up the seamless mosaic that you’re viewing. You know the time each image was taken.

    In summary, Peter Becker, ArcGIS Imager Server product manager, said that imagery should be served fresh. Satellite is a great source. DigitalGlobe QuickBird Basic Format arrives unrectified and unenhanced. Using the Image Server’s processing capabilities, you can orthorectify and pan sharpen the collection of 6-inch imagery all on-the-fly. You can look at other views, such as color infrared, or just present a new view. You can look at a vegetation index, compute it, classify water, color map it, and serve it up to the ArcMap client all on-the-fly, so there’s no extra storage left on disc.

    Most people have imagery in various formats, and want to know how Image Server can benefit them. Image Server can leverage a lot of imagery you already have, and can serve it to various clients. An example are DOQQs, which are already orthorectified and tiled. Image Server serves them up seamlessly and efficiently, and is able to handle these large datasets very quickly. The product can also solve the time problem, by serving imagery fresh, with built in powerful image processing capability, and efficiency in terms of how it leverages your other resources.

    Top News of the Week

    , provider of high resolution commercial satellite imagery and geospatial information products, announced that Ball Aerospace & Technologies Corporation is building WorldView 2. WorldView 2, the third satellite in DigitalGlobe's constellation of spacecraft, offers the highest collection capacity of Earth imagery, and is the only next generation system to be built independent of U.S. Government financing. The WorldView 2 satellite is scheduled to launch in late 2008; work on the satellite sensor is nearing completion at ITT and work on long lead items on the satellite bus has been underway since early 2006. WorldView 2 is the third remote-sensing satellite built by Ball Aerospace for DigitalGlobe, and will contribute to the company's already successful high resolution imaging capabilities.

    Over 300 million Americans have to live somewhere. And, of course, we do. Nearly 80 percent of the growing U.S. population resides in urban areas while the land area dedicated to urban use continues to expand.

    A new USGS publication - Rate, Trends, Causes, and Consequences of Urban Land-Use Change in the United States (Professional Paper 1726) - studies the change in land use associated with increasing urbanization and its impacts at local, regional, and national scales. Based on the broad view of satellite imagery, the twenty scientific contributions that make up the publication examine urban land change in the United States from many perspectives - historical, geographic, economic, and ecological. Together the analyses provide new insights into critical issues of concern for both science and society.

    New white paper from ESRI: “ArcGIS Server: ESRI’s Complete Server GIS.” ArcGIS® Server is a complete and integrated server-based geographic information system (GIS). It comes with out-of-the-box end user services and applications for geodata management, visualization (mapping), and spatial analysis. ArcGIS Server provides a rich, standards-based platform, extensive GIS capabilities, and comprehensive data management tools that promote a centrally managed GIS architecture. ArcGIS Server technology extends geospatial capabilities throughout an organization using browser based, desktop, and mobile clients.

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