SPIRE: a digital library for scientific information |
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Authors: | Lawrence D Bergman Vittorio Castelli Chung-Sheng Li John R Smith |
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Affiliation: | IBM T.J. Watson Research Center, P.O. Box 704, Yorktown Heights, NY 10598, USA; E-mail: bergmanl@us.ibm.com, US
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Abstract: | In this paper we describe the architecture and implementation of a digital library framework for scientific data, particularly imagery, with a focus on support for content-based search. Content is specified by the user at one or more of the following abstraction levels: pixel, feature, and semantic. An object-definition mechanism has been developed that supports example-based and constraint-based specification of both simple and complex query targets.This framework incorporates a methodology yielding a computationally efficient implementation of image processing algorithms, thus allowing the interactive, real-time extraction and manipulation of user-specified features and content during the execution of queries. The framework is well-suited for searching scientific databases, including satellite imagery, and medical and seismic data repositories, where the richness of the information does not allow the a priori generation of exhaustive indexes. |
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