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Enhanced image processing for infrared non-destructive testing

Lopez F., Maldague X., Ibarra-Castanedo C.

Opto-Electronics Review

2014

Vol. 22, No. 4

245-251

This paper presents a review and in-depth analysis of three of the most popular techniques for processing PT images: differential absolute contrast, thermographic signal reconstruction and pulsed phase thermography. The fundamental concepts of the three techniques are reviewed and their application on thermal data obtained from the PT inspection on a carbon fibre reinforced specimen is analysed. Furthermore, a new promissory technique based on multivariate statistical analysis is also introduced and evaluated. The performance of the techniques is evaluated in terms of the signal-to-noise ratio at maximum signal contrast.

A normative proposal for obtaining a suitable multiattribute generalized cost in routing problems

Lopez F., Fernandez E.

Foundations of Computing and Decision Sciences

2002

Vol. 27, No. 1

17-26

Up to now, the routing problem with physical planning, (choosing the best route linking each pair of adjacent nodes belonging to a road network), has been solved only using an imprecise heuristic approach. In this paper we present a normative method which uses some proxy variables for modeling the main attributes, and is based on a set of rational axioms which provides a good framework for clearing Decision Maker's preferences and beliefs, following the paradigm of Decision Analysis. This method has been successfully applied in practical decision making.