Signal Processing in Advanced Nondestructive Materials Inspection
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Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:954623
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A Machine Learning Approach for Locating Acoustic Emission
This paper reports on the feasibility of locating microcracks using multiple-sensor measurements of the acoustic emissions (AEs) generated by crack inception and propagation. Microcrack localization has obviou...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:895486 -
Heuristic Enhancement of Magneto-Optical Images for NDE
The quality of measurements in nondestructive testing and evaluation plays a key role in assessing the reliability of different inspection techniques. Each different technique, like the magneto-optic imaging h...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:485695 -
ICA Mixtures Applied to Ultrasonic Nondestructive Classification of Archaeological Ceramics
We consider a classifier based on Independent Component Analysis Mixture Modelling (ICAMM) to model the feature joint-probability density. This classifier is applied to a challenging novel application: classif...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:125201 -
Strain and Cracking Surveillance in Engineered Cementitious Composites by Piezoresistive Properties
Engineered Cementitious Composites (ECCs) are novel cement-based ultraductile materials which is crack resistant and undergoes strain hardening when loaded in tension. In particular, the material is piezoresis...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:402597 -
A Study of Concrete Hydration and Dielectric Relaxation Mechanism Using Ground Penetrating Radar and Short-Time Fourier Transform
Ground penetrating radar (GPR) was used to characterize the frequency-dependent dielectric relaxation phenomena in ordinary Portland cement (OPC) hydration in concrete changing from fresh to hardened state. Th...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:317216 -
Fluctuation Analyses for Pattern Classification in Nondestructive Materials Inspection
We review recent work on the application of fluctuation analyses of time series for pattern classification in nondestructive materials inspection. These analyses are based on the evaluation of time-series fluc...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:262869 -
On the Evaluation of Texture and Color Features for Nondestructive Corrosion Detection
We present a methodology for automatic corrosion detection in digital images of carbon steel storage tanks and pipelines from a petroleum refinery. The database consists of optical digital images taken from eq...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:817473 -
Analysis of Approximations and Aperture Distortion for 3D Migration of Bistatic Radar Data with the Two-Step Approach
The two-step approach is a fast algorithm for 3D migration originally introduced to process zero-offset seismic data. Its application to monostatic GPR (Ground Penetrating Radar) data is straightforward. A dir...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:192378 -
Attenuation Analysis of Lamb Waves Using the Chirplet Transform
Guided Lamb waves are commonly used in nondestructive evaluation to monitor plate-like structures or to characterize properties of composite or layered materials. However, the dispersive propagation and multim...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:375171 -
Appling a Novel Cost Function to Hopfield Neural Network for Defects Boundaries Detection of Wood Image
A modified Hopfield neural network with a novel cost function was presented for detecting wood defects boundary in the image. Different from traditional methods, the boundary detection problem in this paper wa...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:427878 -
Flexible Riser Monitoring Using Hybrid Magnetic/Optical Strain Gage Techniques through RLS Adaptive Filtering
Flexible riser is a class of flexible pipes which is used to connect subsea pipelines to floating offshore installations, such as FPSOs (floating production/storage/off-loading unit) and SS (semisubmersible) p...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:176203 -
Digital Radiography Using Digital Detector Arrays Fulfills Critical Applications for Offshore Pipelines
Digital radiography in the inspection of welded pipes to be installed under deep water offshore gas and oil pipelines, like a presalt in Brazil, in the paper has been investigated. The aim is to use digital ra...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:894643 -
Cyclic Biaxial Stress Measurement Method Using the Grain Growth Direction in Electrodeposited Copper Foil
A method that uses grain growth direction in electrodeposited copper foil to measure cyclic biaxial stress is examined in this paper. The grain growth direction is measured by image processing software after a...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:928216 -
Automatic Determination of Fiber-Length Distribution in Composite Material Using 3D CT Data
Determining fiber length distribution in fiber reinforced polymer components is a crucial step in quality assurance, since fiber length has a strong influence on overall strength, stiffness, and stability of t...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:545030 -
Geometrical Feature Extraction from Ultrasonic Time Frequency Responses: An Application to Nondestructive Testing of Materials
Signal processing is an essential tool in nondestructive material characterization. Pulse-echo inspection with ultrasonic energy provides signals (A-scans) that can be processed in order to obtain parameters w...
Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:706732