Abstract
Image features pertinent to weld defect detection and identification are extracted from a digitised radiograph image of the weld. These image features form the set of visual evidence which is brought to bear upon a set of possible defect hypotheses. The Dempster-Shafer theory is applied to combine these visual evidence and obtain a belief interval for each of the defect hypotheses. The system is capable of assessing the validity of the result of the identification by considering the degree of conflict in the body of the evidence.
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References
Dempster, A. P. A Generalisation of Bayesian Inference. J. Roy. Statis. Soc., Vol. B30, pp.205–246, 1968.
Shafer, G. A Mathematical Theory of Evidence, Princeton University Press, Princeton, NJ., 1976.
Kidd, A. Knowledge Acquisition for Expert Systems: A Practical Handbook. Plenum Press, 1987.
Yen, J. GERTIS: A Dempster-Shafer Approach to Diagnosing Hierarchical Hypotheses. Comm. ACM., Vol. 32, No. 5, pp.573–585, 1989.
Pearl, J. Bayesian and Belief Function Formalisms for Evidential Reasoning: A Conceptual Analysis. in Readings in Uncertain Reasoning, Ed. G. Shafer and J. Pearl, pp. 540–574, Morgan Kaufmann, USA, 1990.
Ip, H. H. S. Application of a Theory of Evidence in Knowledge-Based Pattern Recognition. Proc. NCIT’91, pp. 98-110, Penang, Malaysia, 1991.
Ip, H. H. S. and Bell, M. An Evidence Reasoning Scheme for Intercept Recognition. Technical Memorandum, C3119-TM-011, Cambridge Consultants, 1988.
Hummel, R. A. and Landy, M. S. A Statistical Viewpoint on the Theory of Evidence. IEEE Trans. on Pattern Analysis and Machine Intelligence, PAMI-10(2), pp. 319–325, 1988.
Duff, M. J. B. Review of the CLIP Image Processing System. Proc. Natl. Computer Conf., pp. 1055-1060, 1978.
Serra, J. Mathematical Morphology and Image Analysis. Academic Press, New York, 1982.
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© 1991 Springer-Verlag London Limited
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Ip, H.H.S. (1991). Visual Evidence Accumulation in Radiograph Inspection. In: Mowforth, P. (eds) BMVC91. Springer, London. https://doi.org/10.1007/978-1-4471-1921-0_26
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DOI: https://doi.org/10.1007/978-1-4471-1921-0_26
Publisher Name: Springer, London
Print ISBN: 978-3-540-19715-7
Online ISBN: 978-1-4471-1921-0
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