Masters Theses

Abstract

“In this thesis, an architecture for multi-sensor data fusion and evidence accumulation for landmine detection and discrimination is presented. Evidential and discriminatory information about the buried object such as shape, size, depth, and material, chemical or electromagnetic properties is obtained from different sensors and sensor algorithms. Each sensor may provide one or more of this information. Type data channel provides any relevant discriminatory characteristics of the buried object, which may include shape, chemical content, material property etc. A supervised feed-forward neural network is used to learn the causality between the cluster information and the evidence of a given class of the buried object. Size, depth and phenomenology input are used as control gating input for the neural network mapping. The feedback accommodates both autonomous (adaptive) and human assisted learning. Dempster- Shafer evidential reasoning is used to accumulate different evidence from sensor channels. The supervisory feedback is provided by the output of the global sensor fusion system. Performance of fusion architecture and Dempster-Shafer reasoning is studied using simulated data. For the simulated data noisy images of regular and irregular shapes of different objects are produced. Fourier descriptor, moment invariant and Matlab shape features are used to define the shape information of the objects. Each of these algorithms was considered as different sensor channel providing dissimilar information about the buried object. Evidence accumulation is done using shape and size information from each of the algorithms. Dempster-Shafer evidential theory is compared with a Bayesian Statistics, as applied to sensor fusion”--Abstract, page iii.

Advisor(s)

Rao, Vittal S.
Agarwal, Sanjeev, 1971-

Committee Member(s)

Fu, Yongjian

Department(s)

Electrical and Computer Engineering

Degree Name

M.S. in Electrical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Summer 2000

Pagination

vii, 68 pages

Note about bibliography

Includes bibliographical references (pages 66-67).

Rights

© 2000 Karthik Ramaswamy, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Thesis Number

T 7820

Print OCLC #

45694707

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

http://laurel.lso.missouri.edu/record=b4498610~S5

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