公开(公告)号：US20240264127A1

公开(公告)日：2024-08-08

申请号：US18571621

申请日：2022-06-29

Applicant: EVIDENT CANADA, INC.

Inventor： Benoit Lepage ,  David Quinn ,  Alain Le Duff

IPC: G01N29/46 ,  G01N29/07 ,  G01N29/42

CPC classification number: G01N29/46 ,  G01N29/07 ,  G01N29/42 ,  G01N2291/106 ,  G06F17/10 ,  G06F17/14 ,  G06F17/16

Abstract: Acoustic inspection productivity can be enhanced using techniques to perform compression of acquired acoustic data, such as data corresponding to elementary A-scan or other time-series representations of received acoustic echo data. In various approaches described herein, time-series data can be decimated for efficient storage or transmission. A representation of the time-series data can be reconstructed, such as by using a Fourier transform-based up-sampling technique or a convolutional interpolation filter, as illustrative examples. The techniques described herein can be used for a variety of different acoustic measurement techniques that involve acquisition of time-series data (e.g., A-Scan data). Such techniques include Full Matrix Capture (FMC) applications, plane wave imaging (PWI), or PAUT, as illustrative examples.

公开(公告)号：US20240036009A1

公开(公告)日：2024-02-01

申请号：US18257517

申请日：2021-12-09

Applicant: Evident Canada, Inc.

Inventor： Alain Le Duff

IPC: G01N29/06 ,  G01N29/26 ,  G01N29/14

CPC classification number: G01N29/069 ,  G01N29/262 ,  G01N29/14 ,  G01N2291/2694

Abstract: Examples of the present subject matter provide techniques for enhancing images taken from non-destructive inspection techniques, such as acoustic inspection. A source 3D data may be acquired representing an object. Rather than displaying the source 3D data, signal processing may be employed to enhance the flaws or defects in the source 3D data. A geometry template of the object may be created using the source 3D data. The source 3D data may be compared to the geometry template, and based on the comparison, an enhanced 3D image may be generated.

公开(公告)号：US12216091B2

公开(公告)日：2025-02-04

申请号：US17905107

申请日：2021-02-25

Applicant: Evident Canada, Inc.

Inventor： Guillaume Painchaud-April ,  Alain Le Duff ,  Charles Brillon

IPC: G01N29/06 ,  G01N29/07 ,  G01N29/26

Abstract: A phase-based approach can be used for one or more of acquisition, storage, or subsequent analysis, e.g., A-scan reconstruction or Total Focusing Method imaging, in support of acoustic inspection. For example, binarization or other quantization technique can be used to compress a data volume associated with time-series signal acquisition. A representation of phase information from the time-series signal can be generated, such as by processing the binarized or otherwise quantized time-series signal. Using the representation of the phase information, a phase summation technique can be used to perform one or more of A-scan reconstruction, such as for pulse-echo A-scan inspection, or a TFM imaging technique can be used, as illustrative examples. In such a phase summation approach, time-series representations of phase data can be summed, such as where each time-series can be delayed (or phase rotated) by an appropriate delay value and then aggregated.

公开(公告)号：US20240319145A1

公开(公告)日：2024-09-26

申请号：US18698188

申请日：2022-10-18

Applicant: Evident Canada, Inc.

Inventor： Alain Le Duff

IPC: G01N29/44 ,  G01N29/06 ,  G01N29/28

CPC classification number: G01N29/4418 ,  G01N29/0645 ,  G01N29/28 ,  G01N2291/02854 ,  G01N2291/0289 ,  G01N2291/106

Abstract: An acoustic inspection system, such as an ultrasound inspection system, can determine an estimate of an a priori accuracy of a measurement using a determined lower bound on an indicium of dispersion of the measurement, such as a variance, and then display the determined estimate of the a priori accuracy to the user.

公开(公告)号：US20240077455A1

公开(公告)日：2024-03-07

申请号：US18547632

申请日：2022-02-15

Applicant: EVIDENT CANADA, INC.

Inventor： André Lamarre ,  Guillaume Painchaud-April ,  Alain Le Duff ,  Benoit Lepage

IPC: G01N29/06

CPC classification number: G01N29/0645 ,  G01N2291/044 ,  G01N2291/106

Abstract: Generally, in a non-destructive test application, a compressed representation of an acoustic echo signal acquired by a non-destructive test (NDT) probe assembly can be received, such as via a network. The compressed representation can include data indicative of changes in phase values of the acoustic echo signal. Using the compressed representation, a time-domain representation of an instantaneous phase signal can be constructed from the compressed representation. The constructed instantaneous phase signal can be used in constructing at least one of an uncompressed acoustic echo signal representation or an image. As an illustration, amplitude values of sampled acoustic echo signals can be suppressed in the compressed representation, reducing data volume associated with transmitting a representation of the acquired acoustic echo signal.

公开(公告)号：US20230098406A1

公开(公告)日：2023-03-30

申请号：US17906316

申请日：2021-03-17

Applicant: EVIDENT CANADA, INC.

Inventor： Alain Le Duff

IPC: G10L19/022

Abstract: Examples of the present subject matter provide techniques for compressive sampling of acoustic data. A probe may sample in a compression mode, such that the entire matrix is not sampled at full-time resolution or spatial resolution. Therefore, the initial amount of data captured by the probe is reduced, allowing for lower density hardware (e.g., fewer analog-to-digital conversion channels or related analog front-end hardware) to be used at a lower data rate.