contrast imaging
Contrast enhancement of propagation based X-ray phase contrast imaging
... phase contrast imaging (XPCI) technique derived from propagation depen- dent phase ...CT imaging of a human artery specimen with extensive atherosclerotic ...phase contrast was greatly ...
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Constraints on HD 113337 fundamental parameters and planetary system. Combining long-base visible interferometry, disc imaging, and high-contrast imaging
... + imaging analysis that we carried out in this study can be extended by using multi-epoch high-contrast imaging data, which would allow to fully close the gap with the RV sensitivity ...
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Comparison of numerical methods in the contrast imaging problem in NMR
... THE CONTRAST IMAGING PROBLEM IN NMR Bernard Bonnard, Mathieu Claeys, Olivier Cots and Pierre Martinon Abstract— In this article, the contrast imaging problem in nuclear magnetic resonance is ...
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The Talbot effect's impact on the high contrast imaging modes of METIS
... for imaging the L/M and N bands in the ...high contrast imaging (HCI) are available at the LMS ...high contrast spectroscopy, and a mode which provides instantaneous ≈ 5-fold increase in ...
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Comparison of Numerical Methods in the Contrast Imaging Problem in NMR
... THE CONTRAST IMAGING PROBLEM IN NMR Bernard Bonnard, Mathieu Claeys, Olivier Cots and Pierre Martinon Abstract— In this article, the contrast imaging problem in nuclear magnetic resonance is ...
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A review of high contrast imaging modes for METIS
... 5-sigma contrast curve is finally obtained by dividing the 5 ⇥ noise radial profile by the algorithm throughput radial profile and by the aperture photometry of the o↵-axis star (using an aperture diameter of ...
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Improvement of the power response in contrast imaging with transmit frequency optimization
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2009 IEEE. Reprinted, with permission, from Sébastien Ménigot, Anthony Novell, Ayache Bouakaz and Jean-Marc Girault, Improve- ment of the power response in contrast imaging with transmit fre- quency ...
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Geometric and numerical methods in the contrast imaging problem in nuclear magnetic resonance
... The contrast imaging problem was analyzed in a series of recent articles using geometric optimal control [ 6 , 11 ] or numerical indirect methods [ 7 ], and leads to experimental work described in [ 10 , 26 ...
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CHIPS: The Carina High-contrast Imaging Project of massive Stars
... High-contrast Imaging Project of massive Stars (CHIPS) aims to observe all 80+ O stars in the Carina nebula using the new VLT 2nd-generation extreme-AO instrument ...dented imaging contrast ...
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Optimization of the Contrast Tissue Ratio in Ultrasound Contrast Imaging by an Adaptive Transmit Frequency
... ultrasound contrast imaging systems use a fixed transmit ...adaptive imaging technique which selects the optimal transmit frequency that maximizes the contrast tissue ratio ...the ...
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Capabilities and limitations of Phase Contrast Imaging techniques with X-rays and neutrons
... Moreover, Weitkamp noticed that a phase contrast imaging system using a shearing interferometer can be used also with polychromatic radiation, such as radiation comin[r] ...
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The path towards high-contrast imaging with the VLTI: the Hi-5 project
... the contrast of long-baseline interferometers ...high-contrast imaging will be investigated in the context of the Hi-5 study, which will particularly explore the limits of exoplanet detection from ...
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Astrometric and photometric accuracies in high contrast imaging: The SPHERE speckle calibration tool (SpeCal)
... Differential imaging strategies Current high contrast imaging instruments dedicated to exo- planet detection combine an adaptive optics system to com- pensate for the atmospheric turbulence and ...
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Unveiling the β Pictoris system, coupling high contrast imaging, interferometric, and radial velocity data
... and the infalling comets were attributed to planets in the 1990s, it took more than a decade to detect the first planet in the system ( Lagrange et al. 2010 ). It appeared that β Pictoris b could indeed explain both the ...
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Electron channelling contrast imaging: influence of diffraction conditions on the dislocation contrast
... for imaging subsurface defects such as dislocations and stacking faults…on bulk sample ...Channelling Contrast Imaging (ECCI) was developed ...
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Adaptive matched filters for contrast imaging
... E-mail : sebastien.menigot@etu.univ-tours.fr, jean-marc.girault@univ-tours.fr 2010 IEEE. Reprinted, with permission, from Sébastien Ménigot, Iulian Voicu, Anthony Novell, Melouka Elkateb Hachemi Amar and Jean-Marc ...
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Improvement of the power response in contrast imaging with transmit frequency optimization
... We tackled the problem in a simple way by proposing an adaptive imaging technique which seeks the transmit frequency that maximizes the backscattered power. That is to disregard these unknown factors, it seemed ...
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Bias voltage modulation methods and its optimization for nonlinear contrast imaging
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Compact tomographic X-ray phase-contrast imaging of breast cancer
... We further combine quantitative phase imaging with computed tomography (CT) which enables us to investigate internal structures in 3D. Existing techniques for phase r[r] ...
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Geometric and numerical methods in the contrast imaging problem in nuclear magnetic resonance
... Recalling difficulty 1, we need to know the control structure (meaning the number of Bang-Singular sequences) before calling the multiple shooting method. A possible strategy is to use continuation (or homotopy) ...
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