Results 211 to 220 of about 986,649 (268)
Label-Free Visualization and Morphological Profiling of Neuronal Differentiation and Axonal Degeneration through Quantitative Phase Imaging. [PDF]
Adv Biol (Weinh)Kim JH +5 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2009
A new method for grating and side lobes suppression in ultrasound images is presented. It is based on an analysis of the phase diversity at the aperture data. Two coherence factors, namely the phase coherence factor (PCF) and the sign coherence factor (SCF), are proposed to weight the coherent sum output.
Jorge, Camacho +2 more
openaire +2 more sources
A new method for grating and side lobes suppression in ultrasound images is presented. It is based on an analysis of the phase diversity at the aperture data. Two coherence factors, namely the phase coherence factor (PCF) and the sign coherence factor (SCF), are proposed to weight the coherent sum output.
Jorge, Camacho +2 more
openaire +2 more sources
Topical Meeting On Signal Recovery and Synthesis II, 1986
In this review an overview will be given of the state-of-the-art in phase retrieval (PR). PR occurs in many different areas of signal processing: - in imaging, where the image only yields the modulus of the wavefunction in the image plane, while for the reconstruction of the object we also need its phase - in speckle interferometry where we obtain the ...
openaire +3 more sources
In this review an overview will be given of the state-of-the-art in phase retrieval (PR). PR occurs in many different areas of signal processing: - in imaging, where the image only yields the modulus of the wavefunction in the image plane, while for the reconstruction of the object we also need its phase - in speckle interferometry where we obtain the ...
openaire +3 more sources
Phase Imaging and Nanoscale Currents in Phase Objects Imaged with Fast Electrons
Physical Review Letters, 2003We derive the magnetic transport-of-intensity equation (MTIE) that links defocused contrast of magnetic nanoobjects imaged by partially coherent electron waves to their micromagnetic parameters. This provides Maxwell's explanation for observable contrast in terms of the Z component of currents existing around vortices in superconductors and domain ...
V V, Volkov, Y, Zhu
openaire +2 more sources
Multistep phase difference phase contrast imaging
Journal of Magnetic Resonance Imaging, 1997AbstractA new technique for multistep phase‐contrast image processing is presented. The N‐step method consists of simply forming the linear average of the N — 1 adjacent phase‐difference signals. It has similar noise reduction properties as other multistep techniques, but the simplicity of the noise variance of the N‐step technique allows intuitive ...
M J, Lamothe, B K, Rutt
openaire +2 more sources
Recording of phase-amplitude images
Applied Optics, 1981An interferometer comprising three diffraction gratings and an imaging system is used with spatially and spectrally noncoherent light to produce high fidelity low noise recording of phase- and -amplitude objects.
E N, Leith, G J, Swanson
openaire +2 more sources
Applied Optics, 2020
Deep-learning-based single-pixel phase imaging is proposed. The method, termed deep ghost phase imaging (DGPI), succeeds the advantages of computational ghost imaging, i.e., has the phase imaging quality with high signal-to-noise ratio derived from the Fellgett’s multiplex advantage and the point-like detection of diffracted light from objects.
Koshi Komuro +2 more
openaire +2 more sources
Deep-learning-based single-pixel phase imaging is proposed. The method, termed deep ghost phase imaging (DGPI), succeeds the advantages of computational ghost imaging, i.e., has the phase imaging quality with high signal-to-noise ratio derived from the Fellgett’s multiplex advantage and the point-like detection of diffracted light from objects.
Koshi Komuro +2 more
openaire +2 more sources
Closure phase and lucky imaging
Applied Optics, 2008Since its introduction by Jennison in 1958, the closure-phase method for removing the effects of electrical path-length errors in radio astronomy and of atmospheric turbulence in optical astronomy has been based on the non-redundant-spacing triple interferometer.
openaire +2 more sources
Phase and magnitude in normalized images
IEEE Transactions on Image Processing, 1994Distortion due to complete loss or perturbation of phase or magnitude information is considered for energy normalized images. With certain statistical assumptions on the image structure, phase information is shown to be more crucial.
openaire +2 more sources
Phase problems in optical imaging
Frontiers of Information Technology & Electronic Engineering, 2017Because the phase contains more information about the field compared to the amplitude, measurement of the phase is encountered in many branches of modern science and engineering. Direct measurement of the phase is difficult in the visible regime of the electromagnetic wave.
Guohai Situ, Haichao Wang
openaire +1 more source