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Specular Beamforming.

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Title: Specular Beamforming.
Authors: Rodriguez-Molares, Alfonso1, Fatemi, Ali1, Lovstakken, Lasse1, Torp, Hans1
Source: IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control. Sep2017, Vol. 64 Issue 9, p1285-1297. 13p.
Subjects: Specular microscopy, Beamforming, Signal processing, Aperture-coupled microstrip antennas, Soft tissue infections
Abstract: Acoustically hard objects, such as bones, needles, or catheters, are poorly visualized in conventional ultrasound images. These objects behave like acoustic mirrors and reflect sound in specific directions. Soft tissue and diffusive reflectors scatter sound in a broad range of directions. Conventional delay-and-sum beamforming is based on the assumption of a purely scattering domain with relatively weak reflectivity. We present an adaptive beamforming technique that takes into account the physics of specular reflection. Patterns predicted by the law of reflection are detected across the pool of received data and used to enhance the visualization of specular energy. This technique can be applied to any synthetic imaging sequence. Here, it is applied to synthetic transmit aperture imaging. In vitro experiments show a clear improvement in target visibility and an increase of 30 to 60 dB in signal-to-noise ratio. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 124984566
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: <searchLink fieldCode="DE" term="%22Specular+microscopy%22">Specular microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Beamforming%22">Beamforming</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Aperture-coupled+microstrip+antennas%22">Aperture-coupled microstrip antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Soft+tissue+infections%22">Soft tissue infections</searchLink>
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  Data: Acoustically hard objects, such as bones, needles, or catheters, are poorly visualized in conventional ultrasound images. These objects behave like acoustic mirrors and reflect sound in specific directions. Soft tissue and diffusive reflectors scatter sound in a broad range of directions. Conventional delay-and-sum beamforming is based on the assumption of a purely scattering domain with relatively weak reflectivity. We present an adaptive beamforming technique that takes into account the physics of specular reflection. Patterns predicted by the law of reflection are detected across the pool of received data and used to enhance the visualization of specular energy. This technique can be applied to any synthetic imaging sequence. Here, it is applied to synthetic transmit aperture imaging. In vitro experiments show a clear improvement in target visibility and an increase of 30 to 60 dB in signal-to-noise ratio. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1109/TUFFC.2017.2709038
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 1285
    Subjects:
      – SubjectFull: Specular microscopy
        Type: general
      – SubjectFull: Beamforming
        Type: general
      – SubjectFull: Signal processing
        Type: general
      – SubjectFull: Aperture-coupled microstrip antennas
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      – SubjectFull: Soft tissue infections
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      – TitleFull: Specular Beamforming.
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              M: 09
              Text: Sep2017
              Type: published
              Y: 2017
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