Results 11 to 20 of about 3,633,330 (258)
Plane Wave Reverse Time Image for Nondestructive Tests
IEEE Access, 2023 Reverse time migration (RTM) has been a popular method in industry duo to its ability of imaging complex subsurface and no dip restriction. However, RTM based on full matric capture (FMC) data is limited by the time cost of the calculation and cannot be ...
Wanqiu Zheng, Xiaohong Meng, Jian Wang
doaj +2 more sources
Plane-Wave Imaging Improves Single-Track Location Shear Wave Elasticity Imaging. [PDF]
IEEE Trans Ultrason Ferroelectr Freq Control, 2018 Single-track location shear wave elasticity imaging (STL-SWEI) is immune to speckle bias, but the quality of the images is depth dependent. We hypothesize that plane-wave imaging can reduce the depth dependence of STL-SWEI. To test this hypothesis, we developed a novel technique known as plane-wave STL-SWEI (pSTL-SWEI).
Ahmed R +4 more
europepmc +4 more sources
Fast, Low-Frequency Plane-Wave Imaging for Ultrasound Contrast Imaging. [PDF]
Ultrasound Med Biol, 2018 Plane-wave ultrasound contrast imaging offers a faster, less destructive means for imaging microbubbles compared with traditional ultrasound imaging. Even though many of the most acoustically responsive microbubbles have resonant frequencies in the lower-megahertz range, higher frequencies (>3 MHz) have typically been employed to achieve high spatial ...
Kusunose J, Caskey CF.
europepmc +4 more sources
Methods for Grating Lobe Suppression in Ultrasound Plane Wave Imaging
Applied Sciences, 2018 Plane wave imaging has been proven to provide transmit beams with a narrow and uniform beam width throughout the imaging depth. The transmit beam pattern, however, exhibits strong grating lobes that have to be suppressed by a tightly focused receive beam
Sua Bae, Tai-Kyong Song
doaj +3 more sources
Noise Equalization for Ultrafast Plane Wave Microvessel Imaging [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2017 Ultrafast plane wave microvessel imaging significantly improves ultrasound Doppler sensitivity by increasing the number of Doppler ensembles that can be collected within a short period of time. The rich spatiotemporal plane wave data also enable more robust clutter filtering based on singular value decomposition.
Joshua Trzasko +2 more
exaly +3 more sources
A Nonlinear Beamformer Based on p-th Root Compression—Application to Plane Wave Ultrasound Imaging
Applied Sciences, 2018 Ultrafast medical ultrasound imaging is necessary for 3D and 4D ultrasound imaging, and it can also achieve high temporal resolution (thousands of frames per second) for monitoring of transient biological phenomena.
Maxime Polichetti +4 more
doaj +3 more sources
Millimetre wave imaging for concealed target detection [PDF]
, 2011 PhDConcealed weapon detection (CWD) has been a hot topic as the concern about pub- lic safety increases. A variety of approaches for the detection of concealed objects on the human body based on earth magnetic ¯eld distortion, inductive magnetic ¯eld,
Zhang, Lianhong
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Plane wave diffraction by a rational wedge [PDF]
, 1986 In this paper new expressions for the acoustic field produced when a plane wave source of sound is diffracted by a soft, hard or mixed soft/hard wedge whose angle can be expressed as a rational multiple of are given. The solution is expressed in terms of
Rawlins, A D
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Multi Spherical Wave Imaging Method Based on Ultrasonic Array
Sensors, 2022 The imaging range of traditional plane wave imaging is usually limited by the directivity of the plane wave. In this paper, a multi spherical wave imaging method based on an ultrasonic array is proposed, which radiates both compression and shear waves in
Zhi-Ying Liu +3 more
doaj +1 more source
Wave Climate, Geotechnical and Geophysical Analysis of the Tillamook Jetties [PDF]
Wave Energy AS (WE) is an ocean energy company from Norway established to develop, test, market and commercialize the patented SSG™ wave energy converter technology.
Wave Energy AS, Bakke, Monica
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