Event Title

Automated Interpretation for Ultrasonic NDT Data

Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

Classification and sizing of suspect indications within ultrasonic data can be a complex, time consuming task. An expert system [1], modelled on NDT interpreters’ knowledge and method of inference, has been designed to perform automated classification and sizing of indications extracted from 3D ultrasonic images. Consequently, a range of segmentation algorithms has been evaluated to isolate suspect indications. The techniques currently under investigation include histogram thresholding, co-occurrence matrix analysis and morphological techniques. The expert system, written in CLIPS (‘C’ Language Integrated Production System), can be modified by the system operator using a Windows based dialog editing facility to add new rules and edit existing rules. The system can therefore be tailored to a particular inspection situation.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18A

Chapter

Chapter 3: Simulations, Signal Processing, Tomography, and Holography

Section

Signal Processing and Analysis

Pages

773-779

DOI

10.1007/978-1-4615-4791-4_99

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Automated Interpretation for Ultrasonic NDT Data

Snowbird, UT, USA

Classification and sizing of suspect indications within ultrasonic data can be a complex, time consuming task. An expert system [1], modelled on NDT interpreters’ knowledge and method of inference, has been designed to perform automated classification and sizing of indications extracted from 3D ultrasonic images. Consequently, a range of segmentation algorithms has been evaluated to isolate suspect indications. The techniques currently under investigation include histogram thresholding, co-occurrence matrix analysis and morphological techniques. The expert system, written in CLIPS (‘C’ Language Integrated Production System), can be modified by the system operator using a Windows based dialog editing facility to add new rules and edit existing rules. The system can therefore be tailored to a particular inspection situation.