Results 31 to 40 of about 16,879 (224)
Speckle-interferometry and speckle-correlometry of GB-speckles
Frontiers in Bioscience, 2019 A new method of coding of genetic information using laser speckles has been developed. Specific technique of transforming the nucleotide of gene into a speckle pattern (gene-based speckles or GB-speckles) is suggested. Reference speckle patterns of omp1 gene of typical wild strains of Chlamydia trachomatis of genovars D, E, F, G, and J are generated ...
Onega V, Ulianova +7 more
openaire +2 more sources
Scientific Reports, 2021 The dark-field signal measures the small-angle scattering strength and provides complementary diagnostic information. This is of particular interest for lung imaging due to the pronounced small-angle scatter from the alveolar microstructure.
Sebastian Meyer +4 more
doaj +1 more source
Imaging through turbulence with a quadrature-phase optical interferometer [PDF]
, 2005 We present an improved technique for imaging through turbulence at visible wavelengths using a rotation shearing pupil-plane interferometer, intended for astronomical and terrestrial imaging applications.
Dimotakis, Paul E. +4 more
core +1 more source
Phase extraction in dynamic speckle interferometry: proposal of a road map
EPJ Web of Conferences, 2010 Of all the two-beam interference patterns, the ones obtained in speckle interferometry (SI) are the most difficult to be phase-demodulated. Many solutions exist in classical smooth-wave interferometry and alike techniques, both in static and dynamic ...
Jacquot P., Equisa S.
doaj +1 more source
Towards Reduced CNNs for De-Noising Phase Images Corrupted with Speckle Noise
Photonics, 2021 Digital holography is a very efficient technique for 3D imaging and the characterization of changes at the surfaces of objects. However, during the process of holographic interferometry, the reconstructed phase images suffer from speckle noise.
Marie Tahon +2 more
doaj +1 more source
Experimental assessment of determining the average size of speckles
Вестник Самарского университета: Естественнонаучная серияThe paper proposes a method for estimating the average speckle size using experimentally recorded images of speckle fields on a CMOS matrix. This method can be useful when used in speckle interferometry methods when determining their metrological ...
Roman N. Sergeev
doaj +1 more source
Fiber-Optic Point-Based Sensor Using Specklegram Measurement
Sensors, 2017 Here, we report a fiber-optic point-based sensor to measure temperature and weight based on correlated specklegrams induced by spatial multimode interference.
Jiao-Jiao Wang +4 more
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Quantitative Stain Mapping in X‐Ray Virtual Histology
Advanced Science, EarlyView.Virtual histology promises 3D tissue examination without physical sectioning, yet has lacked the tissue‐specificity of conventional pathology. This work demonstrates the first quantitative three‐dimensional stain mapping at histologically relevant resolution, separating contrast agent from tissue to reveal cellular features such as nuclei. The approach
Dominik John +16 more
wiley +1 more source
Thermomechanical Behaviour of a PWB by Speckle Interferometry Technique
Active and Passive Electronic Components, 2015 The speckle interferometry technique has been used in this work in order to determine the thermomechanical behaviour of Printed Wiring Board (PWB) (circuits) of a radio integrated with tape player and speakers.
Bartolomeo Trentadue, Giuseppe Illuzzi
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Double Pulse-electronic Speckle Interferometry [PDF]
Journal of Modern Optics, 1993 In this paper we describe a double-pulsed electronic speckle interferometry system. Two separated speckle patterns are recorded within few microseconds using a charge-coupled device camera, the two images are then stored in a frame grabber and the subtraction method is applied.
Pedrini, Giancarlo +2 more
openaire +3 more sources