DHPC Adelaide

DHPC Technical Report DHPC-047

Implementation of a Geospatial Imagery Digital Library using Java and CORBA

P.D. Coddington, K.A. Hawick, K.E. Kerry, J.A. Mathew, A.J. Silis, D.L. Webb, P.J. Whitbread, C.G. Irving, M.W. Grigg, R. Jana, K. Tang

Archived: 22 May 1998

Published in Proc. of Technologies of Object-Oriented Languages and Systems Asia '98 (TOOLS 27), Beijing, Sept 1998, J. Chen et al., (IEEE, 1998) .

Abstract

We have implemented a prototype distributed system for managing and accessing a digital library of geospatial imagery over a wide-area network. The system conforms to a subset of the Geospatial Imagery Access Services (GIAS) specification from the U.S. National Imagery and Mapping Agency (NIMA), which defines an object-oriented application programming interface (API) using the Common Object Request Broker Architecture (CORBA) for remote access to the image server.

The GIAS specification is being used to create imagery access systems for the military in both the U.S. and Australia, and also provides a convenient API for interfacing to repositories of geospatial images, such as satellite data archives, for a variety of commercial and research applications.

Our prototype GIAS implementation was developed using StudioCentral from Silicon Graphics Inc., which provides a set of C++ class libraries for building digital multimedia repositories. We discuss the issues and problems involved in developing this system using CORBA, Java and C++ native methods, within the constraints of the GIAS specification.

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