Guillermo Cosarinsky
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View article: Plane Wave Imaging with Large-Scale 2D Sparse Arrays: A Method for Near-Field Enhancement via Aperture Diversity
Plane Wave Imaging with Large-Scale 2D Sparse Arrays: A Method for Near-Field Enhancement via Aperture Diversity Open
In the context of a medical imaging application for preclinical research, specifically cerebrovascular imaging in small animals, this work addresses the challenges associated with using a large-scale 2D ultrasonic array comprising 32×32 el…
View article: Plane Wave Imaging with Large-Scale 2D Sparse Arrays: A Method for Near-Field Enhancement via Aperture Diversity
Plane Wave Imaging with Large-Scale 2D Sparse Arrays: A Method for Near-Field Enhancement via Aperture Diversity Open
In the context of a medical imaging application for preclinical research, specifically, erebrovascular imaging in small animals, this work examines the challenges of using a Large-Scale 2D ultrasonic array with 32×32 elements (96×96 wavele…
View article: Three-Dimensional Convolutional Neural Network for Ultrasound Surface Echo Detection
Three-Dimensional Convolutional Neural Network for Ultrasound Surface Echo Detection Open
Ultrasound array imaging frequently employs a coupling medium to facilitate wave transmission from the transducer to the target component. Surface echoes, identified by their high-amplitude peaks, are crucial for determining the Time of Fl…
View article: Deep Learning-Based Algorithms for Real-Time Lung Ultrasound Assisted Diagnosis
Deep Learning-Based Algorithms for Real-Time Lung Ultrasound Assisted Diagnosis Open
Lung ultrasound is an increasingly utilized non-invasive imaging modality for assessing lung condition but interpreting it can be challenging and depends on the operator’s experience. To address these challenges, this work proposes an appr…
View article: Deep Learning-Based Algorithms for Real-Time Lung Ultrasound Imaging
Deep Learning-Based Algorithms for Real-Time Lung Ultrasound Imaging Open
Lung ultrasound is an increasingly utilized non-invasive imaging modality for assessing the lung condition, but interpreting it can be challenging and depends on the operator experience. To address these challenges, this work proposes an a…
View article: Deep learning for ultrasound surface echo detection
Deep learning for ultrasound surface echo detection Open
Ultrasound array imaging techniques are often applied using a coupling medium to transmit waves from the transducer to the scanned component. In this type of tests, the echoes generated by the wave reflection at the component surface conta…
View article: Automatic estimation of surface and probe location for 3D imaging with bidimensional arrays
Automatic estimation of surface and probe location for 3D imaging with bidimensional arrays Open
Ultrasound imaging for Non Destructive Testing is frequently performed in an immersion setup, where water is used as coupling medium between the probe and the component under test. For the computation of the time delays needed for beam-for…
View article: Ultrasonic Non-Contact Air-Coupled Technique for the Assessment of Composite Sandwich Plates Using Antisymmetric Lamb Waves
Ultrasonic Non-Contact Air-Coupled Technique for the Assessment of Composite Sandwich Plates Using Antisymmetric Lamb Waves Open
This paper describes the design and implementation of an ultrasonic non-contact air-coupled technique (UNCACT) using antisymmetric Lamb waves (ALW) for NDT assessments in novel composite sandwich plates of a car body shell. This technique …
View article: Ultrasonic Non-Contact Air-Coupled Technique For Assessment Of Sandwich Composites Plates Using Antisymmetric Lamb Waves
Ultrasonic Non-Contact Air-Coupled Technique For Assessment Of Sandwich Composites Plates Using Antisymmetric Lamb Waves Open
This paper describes the design and implementation of an ultrasonic non-contact air-coupled technique (UNCACT) using antisymmetric Lamb waves (ALW) for NDT assessment in novel composite sandwich plates of the car body shell. This technique…
View article: Time of flight fast approximation method for ultrasound sub-surface imaging
Time of flight fast approximation method for ultrasound sub-surface imaging Open
Time-Of-Flight (TOF) computations are needed in all ultrasound imaging methods. In Non Destructive Testing (NDT), where ultrasound inspections are frequently done using a coupling medium between the transducer and the test piece, wave refr…
View article: A Methodology to Automatically Segment 3D Ultrasonic Data Using X-ray Computed Tomography and a Convolutional Neural Network
A Methodology to Automatically Segment 3D Ultrasonic Data Using X-ray Computed Tomography and a Convolutional Neural Network Open
Ultrasonic non-destructive testing (UT) is a proficient method for detecting damage in composite materials; however, conventional manual testing procedures are time-consuming and labor-intensive. We propose a semi-automated defect segmenta…
View article: Plane Wave Imaging through Interfaces
Plane Wave Imaging through Interfaces Open
Plane Wave Imaging (PWI) has been recently proposed for fast ultrasound inspections in the Non-Destructive-Testing (NDT) field. By using a single (or a reduced number) of plane wave emissions and parallel beamforming in reception, frame ra…
View article: Characterization of reverse martensitic transformation in cold-rolled austenitic 316 stainless steel
Characterization of reverse martensitic transformation in cold-rolled austenitic 316 stainless steel Open
In this work the reversion of the strain-induced ?’-martensite to ?’-austenite was studied in a series of AISI 316 stainless steels (SS) specimens. The samples were submitted to 63% reduction in thickness by rolling at a temperature of -70…
View article: Characterization of reverse martensitic transformation in cold-rolled austenitic 316 stainless steel
Characterization of reverse martensitic transformation in cold-rolled austenitic 316 stainless steel Open
In this work the reversion of the strain-induced ?’-martensite to ?’-austenite was studied in a series of AISI 316 stainless steels (SS) specimens. The samples were submitted to 63% reduction in thickness by rolling at a temperature of -70…
View article: Material Characterization by Electrical Conductivity Assessment Using Impedance Analysis
Material Characterization by Electrical Conductivity Assessment Using Impedance Analysis Open
Eddy currents non destructive testing is a well known method for material characterization, which is sensitive to different properties of conductive materials, such as: electrical conductivity, magnetic permeability, phase proportions, har…