ArticlePhotoacoustics2023
Suppressing artifacts in the total focusing method using the directivity of laser ultrasound.
Article in Photoacoustics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Suppressing artifacts and quantitative evaluation of internal defects in laser ultrasonic multi-mode time-domain synthetic aperture focusing technique via mode separation.Photoacoustics · 2026Article
- Noninvasive photoacoustic computed mesoscopy for longitudinal brain imaging.Science advances · 2026Article
- Laser ultrasound wave pattern analysis for efficient defect detection in samples with curved surfaces.Photoacoustics · 2024Article
- Research on the 3D Reverse Time Migration Technique for Internal Defects Imaging and Sensor Settings of Pressure Pipelines.Sensors (Basel, Switzerland) · 2023Article
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Authors and funding
6 authors.
Funding
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Abstract
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.
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