GEOSPATIAL DIGITAL ASSET MANAGEMENT - A SOLUTION INTEGRATING IMAGERY AND GIS WHERE WILL ALL THE PIXELS GO?(AND HOW WILL WE EVER FIND THEM?)

摘要

The era of widely available high resolution remotely sensed data has arrived. With the advent of numerous commercial satellite systems, data sets of a quality and size previously restricted to government use are now readily available to a broad range of customers. But the data is only the beginning; the continued growth and health of the remote sensing industry depend on broad adoption of this technology. To achieve success, systems to derive information from imagery are essential. Utility of the high resolution data must be apparent to a broad community ranging from map makers to agricultural analysts to intelligence staff. Data utility depends critically on intelligent, useable systems for data storage, management, and exploitation. Digital asset management systems for storing and maintaining high resolution imagery data must be capable of integration with GIS layers and other metadata in order to move beyond GIS to spatial decision support systems. In this paper we describe an image-based geospatial data management system which meets these requirements and addresses issues crucial to the user including efficient data ingest and retrieval, cataloging, data security, data integrity, intellectual property and others. The system incorporates extensive retrieval strategies including geographic search techniques. The open architecture of the system ensures easy integration of multifunctional software to meet the needs of the individual user. For example, the system as currently configured integrates third party viewing and imagery manipulation software. The technical specifications and heritage of the system will be described as well as typical applications.