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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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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 |
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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 |
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