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A Sparse Reconstruction Algorithm for Ultrasonic Images in Nondestructive Testing

• Giovanni Alfredo Guarneri, Daniel Rodrigues Pipa, Flávio Neves Junior, Lúcia Valéria Ramos de Arruda, Marcelo Victor Wüst Zibetti
• Sensors
• 2015

Ultrasound imaging systems (UIS) are essential tools in nondestructive testing (NDT). In general, the quality of images depends on two factors: system hardware features and image reconstruction… (More)

A blind deconvolution approach to discontinuity location and characterization in ultrasonic nondestructive testing

• Giovanni Alfredo Guarneri, Daniel R. Pipa, Flávio Neves, Lúcia Valéria Ramos de Arruda
• 25th European Signal Processing Conference…
• 2017

This paper presents a new algorithm for discontinuity location and characterization using A-scan signals from an ultrasonic inspection system. The algorithm is based on solving an inverse problem in… (More)

Adaptive time corrected gain for ultrasound through time-varying Wiener deconvolution

• Daniel R. Pipa, Giovanni Alfredo Guarneri, Hector L. de Moura
• 25th European Signal Processing Conference…
• 2017

Ultrasound testing techniques, either nondestructive (NDT) or medical, suffer from spatial signal attenuation, where equivalent scatterers at different distances from the transducer will display… (More)

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