Cargando…

Suppressing artifacts in the total focusing method using the directivity of laser ultrasound

Based on a synthesized laser ultrasonic array, full matrix capture can be used to acquire data, which can then be post-processed using the total focusing method. However, this noncontact ultrasonic imaging technique has not been widely used because of the numerous artifacts in ultrasonic images and...

Descripción completa

Detalles Bibliográficos
Autores principales: He, Huabin, Sun, Kaihua, Sun, Chaoming, He, Jianguo, Liang, Enfu, Liu, Qian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10130688/
https://www.ncbi.nlm.nih.gov/pubmed/37124479
http://dx.doi.org/10.1016/j.pacs.2023.100490
_version_ 1785031013014962176
author He, Huabin
Sun, Kaihua
Sun, Chaoming
He, Jianguo
Liang, Enfu
Liu, Qian
author_facet He, Huabin
Sun, Kaihua
Sun, Chaoming
He, Jianguo
Liang, Enfu
Liu, Qian
author_sort He, Huabin
collection PubMed
description Based on a synthesized laser ultrasonic array, full matrix capture can be used to acquire data, which can then be post-processed using the total focusing method. However, this noncontact ultrasonic imaging technique has not been widely used because of the numerous artifacts in ultrasonic images and time-consuming data acquisition. To address these issues, this study proposes a post-processing algorithm, which uses the laser ultrasound directivity information to suppress the artifacts in the total focusing method’s images. In particular, a weight factor is defined using the directivity information. By multiplying the image intensity of the total focusing method with this factor, the algorithm uses not only the amplitude and phase information of laser ultrasound but also its directivity information. The experimental results indicate that four types of artifacts are suppressed. Because the grating lobe artifacts can be suppressed, a larger element spacing can be used to reduce the data acquisition time.
format Online
Article
Text
id pubmed-10130688
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-101306882023-04-27 Suppressing artifacts in the total focusing method using the directivity of laser ultrasound He, Huabin Sun, Kaihua Sun, Chaoming He, Jianguo Liang, Enfu Liu, Qian Photoacoustics Research Article Based on a synthesized laser ultrasonic array, full matrix capture can be used to acquire data, which can then be post-processed using the total focusing method. However, this noncontact ultrasonic imaging technique has not been widely used because of the numerous artifacts in ultrasonic images and time-consuming data acquisition. To address these issues, this study proposes a post-processing algorithm, which uses the laser ultrasound directivity information to suppress the artifacts in the total focusing method’s images. In particular, a weight factor is defined using the directivity information. By multiplying the image intensity of the total focusing method with this factor, the algorithm uses not only the amplitude and phase information of laser ultrasound but also its directivity information. The experimental results indicate that four types of artifacts are suppressed. Because the grating lobe artifacts can be suppressed, a larger element spacing can be used to reduce the data acquisition time. Elsevier 2023-04-11 /pmc/articles/PMC10130688/ /pubmed/37124479 http://dx.doi.org/10.1016/j.pacs.2023.100490 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
He, Huabin
Sun, Kaihua
Sun, Chaoming
He, Jianguo
Liang, Enfu
Liu, Qian
Suppressing artifacts in the total focusing method using the directivity of laser ultrasound
title Suppressing artifacts in the total focusing method using the directivity of laser ultrasound
title_full Suppressing artifacts in the total focusing method using the directivity of laser ultrasound
title_fullStr Suppressing artifacts in the total focusing method using the directivity of laser ultrasound
title_full_unstemmed Suppressing artifacts in the total focusing method using the directivity of laser ultrasound
title_short Suppressing artifacts in the total focusing method using the directivity of laser ultrasound
title_sort suppressing artifacts in the total focusing method using the directivity of laser ultrasound
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10130688/
https://www.ncbi.nlm.nih.gov/pubmed/37124479
http://dx.doi.org/10.1016/j.pacs.2023.100490
work_keys_str_mv AT hehuabin suppressingartifactsinthetotalfocusingmethodusingthedirectivityoflaserultrasound
AT sunkaihua suppressingartifactsinthetotalfocusingmethodusingthedirectivityoflaserultrasound
AT sunchaoming suppressingartifactsinthetotalfocusingmethodusingthedirectivityoflaserultrasound
AT hejianguo suppressingartifactsinthetotalfocusingmethodusingthedirectivityoflaserultrasound
AT liangenfu suppressingartifactsinthetotalfocusingmethodusingthedirectivityoflaserultrasound
AT liuqian suppressingartifactsinthetotalfocusingmethodusingthedirectivityoflaserultrasound