Speckle interferometry allows the reconstruction of high resolution diffraction-limited images. (mpg.de)
Speckle interferometry imposes special requirements on the equipment, such as low noise, low power and fast readout. (mpg.de)
To fulfill these requirements our department developed the optics, electronics and software for our speckleinterferometry observations. (mpg.de)
Imaging sensors for bispectrum speckleinterferometry applications usually require a combination of low readout noise and fast readout. (mpg.de)
Using the techniques presented below, we have developed and built several camera electronics that enable us to obtain bispectrum speckleinterferometry observations of unprecedented resolution and SNR. (mpg.de)
Six experiments are conducted using numerical cross-correlation analysis to verify the hypothesis that acoustical speckleinterferometry may be used to determine displacements. (dtic.mil)
Patterns6
In laser speckle photometry, the change in interference patterns (speckle patterns) over time is analyzed to yield information about structural properties of a component (porosity, internal stress, hardness, roughness, degradation, and inhomogeneity). (fraunhofer.de)
Usage of 2D optical sensors to capture sequences of correlated 2D speckle patterns allows for building a pointwise estimate of a given statistical measure which should give a quantitative high contrast detailed 2D map of the spatial distribution of activity across the object surface. (spie.org)
Similar to all processing algorithms, the built estimates exhibit strong fluctuations from point to point due to speckle nature of the acquired patterns. (spie.org)
As a first task, we studied the distributions of the built estimates by processing of synthetic speckle patterns. (spie.org)
A magnetic field is applied to the finger , and a camera records the speckle patterns generated by the laser light reflected from the finger . (bvsalud.org)
I wil discuss our use of coherent X-ray scattering in the stripe and skyrmion phase to obtain speckle patterns that can be used to determine domain cascades and avalanches. (lu.se)
LSCI2
The aims of this study were to investigate whether laser speckle contrast imaging (LSCI) could be used for such measurements, and to monitor perfusion during strabismus surgery on one or two horizontal rectus muscles. (bmj.com)
We will study and develop the use of non-invasive imaging techniques including Laser Speckle Contrast Imaging (LSCI), Diffuse Reflectance Spectroscopy (DRS) and Photoacoustic Imaging (PAI) in experimental pigs and in patients going through reconstructive surgery. (lu.se)
Interference5
The planar wave coming from an object is deformated by the atmosphere, which results in constructive and destructive interference on the imaging sensor - the so called speckles. (mpg.de)
The method involves scanning a coherent light source over a surface and analyzing the interference speckle pattern to determine the position of the placed piece. (verdict.co.uk)
An optical sensing system records the optical characteristics of the interference speckle produced by scattered light from the coherent light. (verdict.co.uk)
The system uses an invisible 785 nm laser beam that is spread over the surface of the skin by a diffuser, creating a speckle pattern formed by random interference in the backscattered light from the area illuminated by the laser. (lu.se)
Diffuse scattering due to coherent X-rays give rise to speckle pattern due to interference of scattered wave fronts that are randomly phase shifted by the morphology of the sample. (lu.se)
Longitudinal strain2
The aims of this study was to assess the effect of using a four chamber versus a three plane model on speckle tracking derived global longitudinal strain, the effects of drift compensation, the effect of assessing strain in different layers and finally the interplay between these aspects for the assessment of strain in neonates. (uib.no)
Speckle tracking derived longitudinal strain was obtained from 22 healthy neonates. (uib.no)
Glaze1
Amaco's Deep Sienna Speckle glaze is versitile and can be transparent when applied thin or fully opaque when applied thick (three coats). (theceramicshop.com)
Measurement2
We aim to report a noncontact speckle-based blood glucose measurement system that utilizes artificial intelligence (AI) data processing to improve glucose detection accuracy. (bvsalud.org)
The study found that the noncontact speckle-based blood glucose measurement system with AI data processing allows for the detection of blood plasma glucose levels with high accuracy. (bvsalud.org)
Imaging3
The readout rate typically depends on different factors, like the bandwidth limitations of the imaging sensors, ranging from 100 kHz to a few MHz, the SNR in the speckle interferograms (relation of photon shot noise to readout noise) or the desirable frame rate and integration time. (mpg.de)
Our results provide a guide to estimation of noise levels in such applications as multi-speckle dynamic light scattering, time-resolved correlation spectroscopy, speckle visibility spectroscopy, laser speckle imaging etc. (uzh.ch)
The scattering signal can be accessed with various methods based on coherent illumination, which span from self-imaging to speckle scanning. (lu.se)
Photometry1
Laser-speckle photometry (LSP) is a new rapid, non-contact, low-cost approach for recording material properties, such as stress, surface defects, and geometric dimensions. (fraunhofer.de)
Nuclear2
Le projet « Role of the NuA4 complex in nuclear speckle composition » est le fruit d'une coopération dans le domaine de la biologie moléculaire et cellulaire. (eucor-uni.org)
Les chercheurs souhaitent comprendre comment le complexe NuA4 régule le transport de l'ARNm chez les mammifères à travers les nuclear speckles dans les cellules souches embryonnaires. (eucor-uni.org)
Pattern6
Pore in ceramic: optical image (left) and speckle pattern (right). (fraunhofer.de)
Blood perfusion is calculated by analyzing the variation in the speckle pattern. (lu.se)
The speckle pattern is recorded in real time at a rate of up to 100 images per second, with a resolution of 100 μ m/pixel. (lu.se)
Speckled pattern distributed throughout the interphase nucleus with characteristic heterogeneity in the size, brightness and distribution of the speckles. (cdc.gov)
The metaphase plate depicts strong speckled pattern with some coarse speckles standing out. (cdc.gov)
Ultrasound1
Both synthetic and real ultrasound images are used to evaluate the performance of the filter, and denoising results are also compared with other three competitive speckle reduction algorithms. (actapress.com)
Yarn1
Like our longtime favorite solid, Cotton Supreme, new Cotton Supreme Speckles is a smooth and sumptuous worsted weight cotton yarn. (universalyarn.com)
Displacement2
A method for measuring in-plane displacement using two laser speckle photographs is described. (harvard.edu)
Displacement of speckles arising in the diffraction field of a laser-illuminated surface subject to homogeneous deformation is investigated by numerical simulations using a rough surface model represented by an assembly of point scatterers distributed randomly around its mean surface that can be arbitrary. (photonics.pl)
Laser1
The phenomenon of dynamic speckle is used for non-invasive whole-field detection and visualization of physical or biological activity in various objects through statistical description of laser speckle dynamics. (spie.org)
Pendant6
Ferm Living launches with the Speckle pendant lamp, a lampshade made of ceramic. (connox.com)
The Speckle pendant lamp by ferm Living is available in different sizes. (connox.com)
The Speckle pendant lamp by ferm Living fits harmoniously into the interior with its natural look and is suitable as a light above the dining table. (connox.com)
In front of a coloured wall in dark blue, the bright Speckle pendant lamp by ferm Living comes into its own in the living room. (connox.com)
In two different sizes, the handmade Speckle pendant lamp can also be wonderfully combined and artfully arranged in different lengths. (connox.com)
Their Hype Mono Speckle Fade Pencil Case features a monochrome fade design with a speckle print overlay and is the perfect storage for all your school stationery. (monkhouse.com)
features a monochrome fade design with a speckle print overlay and is the perfect storage for all your school stationery. (monkhouse.com)
Sensitivity1
The fluctuations decrease the contrast of the built 2D activity map and worsen sensitivity and resolution of the dynamic speckle method. (spie.org)
Characteristics2
The speckle characteristics are spatially deconstructed into individual spot images, and these images are de-convolved to reveal deviations in two dimensions. (verdict.co.uk)
An optical sensing system records the speckle characteristics of the reflected light, which are then analyzed by a controller to determine if the piece has been placed accurately. (verdict.co.uk)
Bowl1
This Tuxton TES-010 Emerald 11 oz. green speckle narrow rim china grapefruit dish / bowl is a traditional, sturdy, simple solution for your diner or restaurant. (webstaurantstore.com)
Variation1
If the echo has a random variation in amplitude versus position of the beam, the resulting variation is referred to as acoustical speckle. (dtic.mil)
Color2
The color is a beautifully rich burnt sienna with speckles of manganese for additional depth. (theceramicshop.com)
It is part of the Morocco™ Collection and features an eggshell color with speckles and an organic shape. (wasserstrom.com)
Optical1
These facts were a strong motivation and justification for developing optimized electronics for optical and infrared speckle cameras. (mpg.de)
Design1
Speckles of the beach, ocean, and sky build an elegant mosaic across this design. (genehiller.com)
Method1
A novel multiscale anisotropic diffusion method is proposed for ultrasonic speckle reduction. (actapress.com)
Made3
This hand-blown speckle cup was made by Alexi and Mariel Waddell Hunter of Kingston Glass Studio in their Kingston, Ontario studio. (margospottery.com)
The grant award was made possible through the generous gift by anonymous donors in memory of their cat, Speckles, a companion lost due to abdominal cancer. (vin.com)
This gift established Winn's Speckles Abdominal Cancer Campaign where numerous additional donors have made a supporting contribution. (vin.com)
Perfect3
Boasting modern style and beautiful natural tones, the Speckle Milk Stoneware 12 Piece Dinner Set by Ecology is the perfect way to update your dinnerware collection! (westfield.com.au)
Get it from our custom water bottles designed with brush polishing and speckle finish perfect to make your brand impress everyone. (discountmugs.com)
Speckle Cups are perfect stemless wine glasses, juice glasses or water cups. (margospottery.com)
Skin1
A speckle is a small spot or speck on the skin, plumage or foliage. (wikipedia.org)
Time1
We quantitatively show for the first time that this incoherence, in turn, increases the robustness and stability of the adaptive speckles, which will improve the precision of astrometric and photometric calibration procedures. (caltech.edu)
Determine1
An analysis is presented for using acoustical speckle to determine displacements on the surface or interior to an object. (dtic.mil)
Range3
Typical exposure times for speckle observations usually range from a few ten milliseconds for bright objects to as long as hundreds of milliseconds (mainly limited by the speckle lifetime) for faint objects. (mpg.de)
The organic-shaped pieces of the Speckle Milk range feature a soft speckle and a dimpled, tactile finish. (westfield.com.au)
Designed in Australia and crafted from durable stoneware, the result is a milky white dinnerware collection that can effortlessly stand alone, or combine with coloured pieces from the wider Speckle range to add bold accents. (westfield.com.au)
Phase1
Most importantly, we show that a fast modulation of the added speckle phase, between 0 and π, during a long science integration renders these speckles effectively incoherent with the underlying halo. (caltech.edu)
Finish1
Keep your drinks cold with these gorgeous speckle finish water bottles. (discountmugs.com)
Stock1
Robbie Sugarlite Jiffy Black/ Shell White/ Mash Speckle - C10 is backordered and will ship as soon as it is back in stock. (fromkickstokids.com)