ScienceDirect® Home Skip Main Navigation Links
You have guest access to ScienceDirect. Find out more.
 
Home
Browse
My Settings
Alerts
Help
 Quick Search
 Search tips (Opens new window)
    Clear all fields    
Computers, Environment and Urban Systems
Volume 30, Issue 1, January 2006, Pages 29-53
 
Font Size: Decrease Font Size  Increase Font Size
 Abstract - selected
Article
Purchase PDF (882 K)

 
 
 
Related Articles in ScienceDirect
View More Related Articles
 
View Record in Scopus
 
doi:10.1016/j.compenvurbsys.2004.03.001    How to Cite or Link Using DOI (Opens New Window)
Copyright © 2004 Elsevier Ltd All rights reserved.

Using sketches and knowledge bases for geo-spatial image retrieval

M. Bertolottoa, Corresponding Author Contact Information, E-mail The Corresponding Author, J.D. Carswellb, 1, E-mail The Corresponding Author, E. McLoughlina, E-mail The Corresponding Author, D. O’Sullivana, E-mail The Corresponding Author and D. Wilsonc, 2, E-mail The Corresponding Author

aDepartment of Computer Science, University College Dublin, Belfield, Dublin 4, Ireland bDigital Media Centre, Dublin Institute of Technology, Dublin 2, Ireland cDepartment of Software and Information Systems, University of North Carolina at Charlotte, Charlotte, NC 28223, USA

Received 30 March 2003; 
accepted 17 March 2004. 
Available online 30 March 2005.

Purchase the full-text article



References and further reading may be available for this article. To view references and further reading you must purchase this article.

Abstract

This paper presents research in the field of knowledge management for geo-spatial imagery including scanned aerial photos and satellite images. We have developed a web-based system that allows users to query a database of images not only using metadata, but also drawing sketches of configurations of objects they are interested in as well as inputting textual descriptions of their intended task. Our system integrates case-based reasoning techniques to form a knowledge base from previously issued queries that can be exploited to improve future query processing and to build organizational memory through experience capture. The effective design and implementation of a user-friendly graphic user interface plays an important role for the system to provide improved human–computer interaction and decision support.

Keywords: Geo-spatial imagery; Knowledge base; Sketch-based queries

Article Outline

1. Introduction
2. Related work
2.1. Image retrieval by content
2.2. Knowledge management
3. System architecture
4. Image retrieval
5. Knowledge management
6. Implementation
6.1. Annotation based retrieval
6.1.1. Image retrieval
6.1.2. Session retrieval
7. Evaluation
7.1. Image retrieval using annotations
7.2. Session retrieval
8. Conclusions
Acknowledgements
References













 
Home
Browse
My Settings
Alerts
Help
Elsevier.com (Opens new window)
About ScienceDirect  |  Contact Us  |  Information for Advertisers  |  Terms & Conditions  |  Privacy Policy
Copyright © 2008 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.