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An overview of the ArcGIS Image Server

Release 9.2
Last modified April 14, 2008
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The ArcGIS Image Server allows you to manage, process, and quickly serve large quantities of raster data for visualization and analysis to a variety of clients. The ArcGIS Image Server can serve all types of raster data for a variety of applications including:

Key features

One of the most important key features of Image Server is on-the-fly server-based image processing. The Image Server resolves bottlenecks in conventional image-processing workflows by enabling the raster datasets to be stored directly as files on servers, then processed and distributed directly without extensive preprocessing or loading of the data into a database. Other key features include

The raster data stored in the Image Server may be a preprocessed product, such as tiled orthoimagery; or semiprocessed data, such as georeferenced but overlapping orthoimagery; or primary data, such as raw scanned frames or satellite images. Utilizing the server's processing power, multiple image products can be generated from a single data source, each with different radiometric, geometric processing, and compression options. This methodology removes data management problems associated with multiple preprocessed datasets and can substantially reduce data storage requirements. Server-side processing also enables access to raster data from thin client applications, reducing requirements for workstations to access and process the data.

On-the-fly processing also allows graded data access that enables high-resolution georeferenced imagery to be distributed and made available to the end users immediately on acquisition. The initial data may not be in the final state but still provides the information required for many applications. As the more detailed parameters for production, such as image enhancements, frame orientation, terrain models, or mosaic lines, become available, these can be added to the service to improve the quality of the product without the need to redeliver the imagery. The quick access to the imagery after acquisition reduces the latency between image capture and usage, thereby maximizing the value of imagery.

Using Image Server, the high value of new raster datasets can be truly exploited for a range of applications including:

Image Server is not a GIS or an image analysis application but the backbone for georeferenced imagery required by these and many other applications. Scalable and designed to handle thousands of images simultaneously, Image Server can handle huge quantities of images, now and in the future. It solves the problems related to geoimagery by redefining the methods of management, processing, and distribution of such imagery. Thus, Image Server is the comprehensive solution for georeferenced imagery.

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