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X-ray scattering in the elastic regime as source for 3D imaging reconstruction technique
Journal of Quantitative Spectroscopy and Radiative Transfer, 2015Abstract X-ray beams propagate across a target object before they are projected onto a regularly spaced array of detectors to produce a routine X-ray image. A 3D attenuation coefficient distribution is obtained by tomographic reconstruction where scattering is usually regarded as a source of parasitic signals which increase the level of ...
Miroslav Kocifaj, Michal Mego
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Advanced Materials Research, 2011
In this paper the linear synthetic aperture focusing technique (SAFT), the nonlinear contrast source inversion (CSI) algorithm and the CSI algorithm with extended approaches, such as frequency approach and regularization approach, are applied to reconstruct a complicated target immersed in water from the experimental elastic wave data.
Ji Qi, Jing Hong Miao, Yu Xin Xie
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In this paper the linear synthetic aperture focusing technique (SAFT), the nonlinear contrast source inversion (CSI) algorithm and the CSI algorithm with extended approaches, such as frequency approach and regularization approach, are applied to reconstruct a complicated target immersed in water from the experimental elastic wave data.
Ji Qi, Jing Hong Miao, Yu Xin Xie
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Homogenization of the elastic properties of pyrolytic carbon based on an image processing technique
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2012AbstractIn this work, the linear elastic material properties of differently textured variants of pyrolytic carbon are homogenized from the submicro‐ to the micro‐scale. In high resolution transmission electron microscope (HRTEM) lattice fringe images, the microstructure of pyrolytic carbon manifests itself in terms of projections of graphene layers ...
Böhlke, T. +3 more
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Low Frequency Imaging Technique for Acoustic and Elastic Waves
1980Radar, active sonar, and ultrasonic pulse-echo nondestructive testing have the common goal of extracting as much information about the target as possible from backscattered signals.
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3D imaging of light elements using elastic scattering coincidence technique
2008We describe setup for elastic scattering coincidence technique at the Zagreb microprobe. It is developed for 3-dimensional profiling of small concentration of light elements in heavier matrices. The method is based on the elastic scattering coincidence technique.
Bogdanović Radović, Ivančica +4 more
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3-D Elastic Matching Technique for Temporal Subtraction Employing Thorax MDCT Images
2007Detection of subtle lesions on CT images is a difficult task for radiologists, because subtle shadows tend to have low contrast, and a large number of CT images must be interpreted in a limited time. A temporal subtraction image, which is obtained by subtraction of a previous image from a current one, can be used for enhancing interval changes (such as
Yoshinori Itai +8 more
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An Intravascular Ultrasonic Imaging Technique for Measurement of Elastic Properties of the Artery
1993In recent years, intravascular ultrasonic imaging has become important as this technique provides cross-sectional images of the arterial wall. Several in vitro studies1–3 demonstrate good correlation for the lumen or the wall thickness between ultrasound images and histological sections.
Katsuyuki Yamamoto +3 more
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A localised elastic net technique for lung boundary extraction from magnetic resonance images
Fifth International Conference on Artificial Neural Networks, 1997This paper is concerned with the key process of segmentation of the input image and/or extraction of desired features. In computer vision systems, with particular application to segmenting the human lung boundaries from magnetic resonance images of human torsos.
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IEEE Transactions on Geoscience and Remote Sensing, 1990
An automated algorithm for finding the inner boundary based on recently proposed computer vision technique is described. The algorithm is analogous to solving the equations of motion for an elastic curve, where the forces are provided by the image. The resulting equilibrium position of the elastic curve provides an automated method for finding the ...
R. Samadani +5 more
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An automated algorithm for finding the inner boundary based on recently proposed computer vision technique is described. The algorithm is analogous to solving the equations of motion for an elastic curve, where the forces are provided by the image. The resulting equilibrium position of the elastic curve provides an automated method for finding the ...
R. Samadani +5 more
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Phase-Domain Photoacoustic Mechanical Imaging for Quantitative Elastography and Viscography
IEEE Transactions on Biomedical EngineeringThe role and importance of mechanical properties of cells and tissues in pathophysiological processes have widely been acknowledged. However, current elastography techniques most based on transverse elastic waves, diminish the translation of wave speed ...
Fen Yang +3 more
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