Title
Reliability measure assignment to sonar for robust target differentiation
Abstract
This article addresses the use of evidential reasoning and majority voting in multi-sensor decision making for target differentiation using sonar sensors. Classification of target primitives which constitute the basic building blocks of typical surfaces in uncluttered robot environments has been considered. Multiple sonar sensors placed at geographically different sensing sites make decisions about the target type based on their measurement patterns. Their decisions are combined to reach a group decision through Dempster–Shafer evidential reasoning and majority voting. The sensing nodes view the targets at different ranges and angles so that they have different degrees of reliability. Proper accounting for these different reliabilities has the potential to improve decision making compared to simple uniform treatment of the sensors. Consistency problems arising in majority voting are addressed with a view to achieving high classification performance. This is done by introducing preference ordering among the possible target types and assigning reliability measures (which essentially serve as weights) to each decision-making node based on the target range and azimuth estimates it makes and the belief values it assigns to possible target types. The results bring substantial improvement over evidential reasoning and simple majority voting by reducing the target misclassification rate.
Year
DOI
Venue
2002
10.1016/S0031-3203(01)00106-6
Pattern Recognition
Keywords
Field
DocType
Evidential reasoning,Dempster–Shafer theory,Majority voting,Reliability measure,Sonar sensing,Target classification,Target differentiation,Mobile robotics
Data mining,Pattern recognition,Azimuth,Sonar,Artificial intelligence,Robot,Evidential reasoning approach,Majority rule,Dempster–Shafer theory,Mathematics,Machine learning
Journal
Volume
Issue
ISSN
35
6
0031-3203
Citations 
PageRank 
References 
5
0.76
31
Authors
2
Name
Order
Citations
PageRank
birsel ayrulu1766.54
Billur Barshan231327.83