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Type of image noise
Speckle, speckle pattern, or speckle noise designates the granular structure observed in coherent light, resulting from random interference. Speckle patterns
Speckle_(interference)
Phenomenon resulting from the superposition of two waves
respective paths. Prime examples of light interference are the famous double-slit experiment, laser speckle, anti-reflective coatings and interferometers
Wave_interference
CCD camera or CMOS sensors imaging the resulting laser speckle pattern caused by the interference of coherent light. In biomedical use, the coherent light
Laser speckle contrast imaging
Laser_speckle_contrast_imaging
Medical diagnostic method
noninvasive definition of ischemia, speckle tracking seems a valuable endeavor. The speckle pattern is a mixture of interference patterns and natural acoustic
Speckle tracking echocardiography
Speckle_tracking_echocardiography
Speckle variance optical coherence tomography (SV-OCT) is an imaging algorithm for functional optical imaging. Optical coherence tomography is an imaging
Speckle variance optical coherence tomography
Speckle_variance_optical_coherence_tomography
Measurement method using interference of waves
measurement, such as holographic and speckle interferometry. In coherence scanning interferometry, interference is only achieved when the path length
Interferometry
coherent laser light, a stochastical interference pattern is created. This interference pattern is called a speckle, and is projected on a rigid camera's
Shearography
Electronic speckle pattern interferometry (ESPI), also known as TV holography, is a technique that uses laser light, together with video detection, recording
Electronic speckle pattern interferometry
Electronic_speckle_pattern_interferometry
Medical diagnostic method
static structures, the detected optical field exhibits time-varying interference (speckle fluctuations) whose spectrum broadens with blood-cell motion. A
Laser_Doppler_imaging
Microscopy methods
challenge is the detection of tiny signals on top of large and complex, speckle-like backgrounds. iSCAT has been used to investigate nanoparticles such
Interferometric scattering microscopy
Interferometric_scattering_microscopy
Concept in physics
responsible for the formation of the interference pattern in the static situation produce the changes that are seen in the speckle pattern, where its grains change
Dynamic_speckle
Potential for two waves to interfere
the laser). Spatial coherence of laser beams also manifests itself as speckle patterns and diffraction fringes seen at the edges of shadow. Holography
Coherence_(physics)
Medical diagnostic method
Off-axis holography uses interference between the speckle field and a reference beam to improve detection. In this setup, the speckle field and reference beam
Ultrasound-modulated optical tomography
Ultrasound-modulated_optical_tomography
Chinese American physicist
an ultra-high-resolution broadband spectrometer. The speckle pattern, generated by interference among the guided modes in a fiber, is unique for each
Hui_Cao
uses a camera to detect many speckle grains (see speckle pattern) or a ground glass to create a large number of speckle realizations (Echo-DWS). In both
Diffusing-wave_spectroscopy
Information method in electromagnetic radiation
amplitude of a single speckle. However, since the standard deviation of the coherent sum of the speckles is exactly equal to the mean speckle intensity, optical
Optical_heterodyne_detection
Measuring technique
fluctuations. It can be used for pulsatile blood flow imaging. Electronic speckle pattern interferometry Holography Interferometry Powell RL & Stetson KA
Holographic_interferometry
Recording to reproduce a three-dimensional light field
the sum of all these 'zone plates', which combine to produce a random (speckle) pattern as in the photograph above. When the hologram is illuminated by
Holography
Technique for determining size distribution of particles
and the resulting image is projected onto a screen. This is known as a speckle pattern (Figure 1). All of the molecules in the solution are being hit
Dynamic_light_scattering
shadow slit experiment Willebrord Snell Snell's law spatial filter speckle pattern speckle interferometry spectroscopy speed of light spontaneous emission
Index_of_optics_articles
Scientific facility at Haleakala Observatory in Hawaii, US
operation of adaptive optics and digital image reconstruction such as speckle imaging. The site on the Haleakalā volcano was selected for its clear daytime
Daniel K. Inouye Solar Telescope
Daniel_K._Inouye_Solar_Telescope
or BSLTL, is a free project to help researchers to work with dynamic speckle. The library is based on Mcode to GNU Octave and Matlab and in the free
Biospeckle_laser_tool_library
Bertie are former roommates now that Bertie has invited her boyfriend Speckle to live with her. Bertie, anxious about taking their relationship to the
List of Tuca & Bertie episodes
List_of_Tuca_&_Bertie_episodes
Noise pattern on digital imaging sensors
flat-field illumination for short time exposures and wavelengths, to avoid speckle (in monochromatic light conditions) and statistical fluctuations of the
Fixed-pattern_noise
Species of fish
Citharichthys stigmaeus, the speckled sanddab, is a species of lefteye Blothid flounder in the genus Citharichthys. It is native to the eastern Pacific
Citharichthys_stigmaeus
Extremely flat piece of optical-grade glass
nearly any color. However, lasers also experience a phenomenon called laser speckle, which shows up in the fringes. Several gas or metal-vapor lamps can also
Optical_flat
a variety of mechanisms, such as blind structured illumination, multi-speckle illumination, or photo-imprint photoacoustic microscopy in Figure 1. This
Super-resolution photoacoustic imaging
Super-resolution_photoacoustic_imaging
recording and interference subtraction. In the case of GASMAS, optical interference is particularly cumbersome. This is related to the severe speckle-type interference
Gas in scattering media absorption spectroscopy
Gas_in_scattering_media_absorption_spectroscopy
Overview article
generating an interference pattern which is recorded on a physical medium. When only the second wavefront illuminates the interference pattern, it is
Physics_of_optical_holography
Form of radar used to create images of landscapes
image picture elements ("pixels") also produce random interference effects called "coherence speckle", which is a sort of graininess with dimensions on the
Synthetic-aperture_radar
Astronomer and physicist from United Kingdom
food and wine were much superior to what was available in Teddington! Speckle interferometry was discovered during that period by Antoine Labeyrie. This
Richard_Q._Twiss
Laser whose optical feedback occurs from scattering
photonic barcode, optomicrofluidics, optical batteries, cancer diagnostic, speckle-free bioimaging, on-chip random spectrometer, time-resolved microscopy/spectroscopy
Random_laser
Method of microscopic imaging
beams are required in order to obtain far-field diffraction patterns with speckle patterns. Coherent X-ray beams can be produced by modern synchrotron radiation
Ptychography
Phase Micro-objects
noise and speckle structure of the images appearing as the result of using a coherent source of light. The methods of holographic interference microscopy
Holographic interference microscopy
Holographic_interference_microscopy
Scattering of a radiation wave as it travels through a complex medium
numerous essentially random fluctuations called speckles. This is one of the most robust interference phenomena that survives multiple scattering, and
Coherent_backscattering
Medical diagnostic method
reflected echo from the myocardium shows a speckle pattern that is a mixture of small scatters and interference patterns. The pattern being random, each
Strain_rate_imaging
Neuromorphic data-processing model
non-linear electrical conduction. Substrate: Optical speckle fields generated by random interference of light emerging from a disordered medium illuminated
Receptron
Colour in living creatures caused by interference effects
its principle—wave interference—explained by Thomas Young a century later. Young described iridescence as the result of interference between reflections
Structural_coloration
Electromagnetically induced transparency Electronic countermeasure Electronic speckle pattern interferometry Electrophoretic light scattering Electrophotography
List_of_laser_articles
Type of image sensor
it is comparable to any long-term integrating mode of imaging, such as speckle imaging, adaptive optics, and especially long exposure astronomical observation
Time_delay_and_integration
Scientific facility in Big Bear Lake, California, U.S.
frames get digitally analyzed to be formed into a single sharpened image (speckle-reconstruction). The VIS is an imaging spectrograph that, like the BFI
Goode_Solar_Telescope
Red supergiant star in the constellation Orion
analysing speckle patterns in star images". Astronomy and Astrophysics. 6: 85. Bibcode:1970A&A.....6...85L. Bonneau, D.; Labeyrie, A. (1973). "Speckle interferometry:
Betelgeuse
Image processing software
related to Created with Registax. Shift and add image processing technique Speckle imaging Lucky Imaging Hough, Ken (2011). "RegiStax running under Linux
Registax
Observable quantity in imaging astronomical interferometry
interferometry, the closure phase was first introduced by the bispectrum speckle interferometry,[citation needed] the principle of which is to compute the
Closure_phase
Visible interference in an image
current technology. Compression artifact EMVA1288 Fixed-pattern noise Speckle noise Stroebel, Leslie; Zakia, Richard D. (1995). The Focal encyclopedia
Image_noise
Chemical compound
conditions. This effect appears to be linked to tubercidin's interference with nuclear speckles which are important for processing mRNA and regulating gene
Tubercidin
Forced relocation and ethnic cleansing of the southeastern Native American tribes
provided insight into its lasting effects. Elias Budinot, Major Ridge, Speckled Snake, John Ross, and Richard Taylor were all notable Cherokee orators
Trail_of_Tears
Non-linear digital filtering technique to remove noise
much better than Gaussian blur for high levels of noise, whereas, for speckle noise and salt-and-pepper noise (impulsive noise), it is particularly effective
Median_filter
Species of bird
commences in March in Britain and Ireland. The eggs are a cream, buff or white speckled or blotched with reddish-brown colour, often more heavily so at the larger
European_robin
Genus of fishes
extensively on smaller native fish. The largest species in the genus, the speckled peacock bass (C. temensis), reaches up to 13 kg (29 lb) in weight and 1 m
Peacock_bass
Method to measure velocities in fluid
and reference waves. This setup is used to avoid speckle noise form being generated from interference of the two waves within the scattering medium, which
Particle_image_velocimetry
Medical imaging methodology
the displacement of tissue. Tissue displacement is calculated using a speckle tracking algorithm. The shear wave speed at each pixel in the imaging plane
Shear_wave_elastography
Breed of duck
prone to broodiness and a pair can easily produce young without human interference. They have become a popular backyard pet in recent years due to the bird's
Welsh_Harlequin
Diagnostic tool used in urinalysis
the liberated hemoglobin produces an isolated reaction that results in a speckled pattern on the pad. Reagent strip tests can detect concentrations as low
Urine_test_strip
Fictional character by Lewis Carroll
Wonderland as a giant black bird resembling a cross between a vulture and a speckled chicken with a red head crest, a long yellow beak and a blue tongue. It
Jubjub_bird
Sensor that can create 3D scans using visible light
ideal beam geometry, and laser typical effects like speckle noise and the possible self interference with beam parts reflected from objects. Typically,
Structured-light_3D_scanner
diversity – Space tether – Spark gap – Specific detectivity – Specification – Speckle pattern – Spectral width – Spectrum – Spectrum analyzer – Speed of light
Index_of_electronics_articles
Exoplanet in the constellation Draco
for speckle imaging, supported Keck's findings and verified that the signal caused by KOI-20 was not caused by a nearby background star's interference. Adaptive
Kepler-12b
Sherlock Holmes pastiche of A Study in Scarlet and "The Adventure of the Speckled Band" in which the Dr. Watson analog repeatedly voices racial concepts
Harry_Turtledove_bibliography
Noise that reduces quantization error
few colors, can often be distinguished by a characteristic graininess or speckled appearance. Dithering introduces noise or a pattern into an image, and
Dither
Optical imaging technique
integrations are critical for valid measurements due to the presence of speckle noise. But this value reduces with the square root of the number of independent
Spectroscopic optical coherence tomography
Spectroscopic_optical_coherence_tomography
Shah of Iran from 1941 to 1979
was drawn to the liver tissues that had also been removed. The liver was speckled with white. Malignancy. The cancer had hit the liver. The Shah would soon
Mohammad_Reza_Pahlavi
2011 film by Guy Ritchie
murdering Adler and threatens to kill Watson and Mary due to Holmes' interference, while the detective vows to defeat him. Moriarty's men ambush Watson
Sherlock Holmes: A Game of Shadows
Sherlock_Holmes:_A_Game_of_Shadows
Technique used in optical systems
resolving power exceeding the limit imposed by atmospheric distortion, such as speckle imaging, aperture synthesis, and lucky imaging, or by moving outside the
Adaptive_optics
Species of amphibian
erythristic morph in which the body is completely red). Both morphs have speckled black and white bellies. Additional color anomalies of this species also
Red-backed_salamander
Noise generated by an atmosphere
seasons and nearness of thunderstorm centers. It can be seen as random speckles on an old analog TV set dialed to an empty channel. Although lightning
Atmospheric_noise
Light-conducting fiber
electromagnetic analysis may also be required to understand behaviors such as speckle that occur when coherent light propagates in multi-mode fiber. The behavior
Optical_fiber
Japanese language feature
a vowel kana if it is not (which means the two vowels are subject to interference, such as a glottal stop in between them). なꜜる（成る） vs なる（鳴る） がんばꜜる（頑張る）
Japanese_pitch_accent
Electronic component used to measure strain
optical measuring techniques can be used to measure strains like electronic speckle pattern interferometry or digital image correlation. Microscale strain
Strain_gauge
Empirical study
increase in the frequency of dark forms over the formerly abundant pale, speckled forms. In the twentieth century, as regulation improved and pollution fell
Natural_experiment
Method of spatial measurement using laser
ultra-fast frame rate imaging (millions of frames per second), as well as for speckle reduction in coherent lidar. An extensive lidar bibliography for atmospheric
Lidar
Family of birds
Nesting duties are shared by both parents. There has been generally little interference by humans. Some of the species which require primary woodland are declining
Lybiidae
Exoplanet in the constellation Draco
different in the infrared. The WIYN Observatory's 3.5m telescope was used for speckle imaging on June 18, 2010; in addition, the PHARO camera on the Palomar
Kepler-10c
al. studied oils from the marine-derived Upper Cretaceous Second White Speckled Shale and found strong depleted signal around −180‰ in C12-C18. The low
Hydrogen isotope biogeochemistry
Hydrogen_isotope_biogeochemistry
Lake in California and Nevada, United States
clarki henshawi), mountain whitefish (Prosopiurm williamsoni), Lahontan speckled dace (Rhinichthys osculus robustus), Lahontan redside (Rhinichthys egregious)
Lake_Tahoe
Species of marine mammal
finally fading to tan. Adult males' necks and chests are furless and have a speckled pattern of pink, white, and light brown. This thicker, calloused skin on
Northern_elephant_seal
Optical analog video disc format
plastic which caused the disc to skip and the video to exhibit excessive speckling noise. But, for the most part, rotted discs could actually appear perfectly
LaserDisc
Range of physical processes in physics
the multiply scattered intensity of coherent radiation are called speckles. Speckle also occurs if multiple parts of a coherent wave scatter from different
Scattering
River in Los Angeles County, California, US
(Gasterosteus aculeatus ), Santa Ana sucker (Pantosteus santaanae), Santa Ana speckled dace (Rhinichthys gabrielino), and Arroyo Chub (Gila orcuttii). In 1877
Los_Angeles_River
Species of New World monkey
noticeable. A band of short hair around the upper part of the face with speckled colouring contrasts with the darker surrounding areas. The limbs and tail
Golden-bellied_capuchin
Pollution around Earth by defunct artificial objects
satellites. In the 2009 Walt Disney Pictures film G-Force, the antagonist, Speckles (voiced by Nicolas Cage) orchestrates a plot to destroy humanity with a
Space_debris
Species of bird
bringing up all the three chicks. The eggs are greenish-brown with dark speckles and blotches. Both parents participate in the incubation stage, which lasts
Great_black-backed_gull
Lagoon in India
(Metapenaeus monoceros), Indian prawn (Penaeus indicus), Metapenaeus monoceros (Speckled shrimp), Metapenaeus affinis (Pink prawn) and Metapenaeus dobson (Kadal
Chilika_Lake
Alaimo, M.; Magatti, D.; Ferri, F.; Potenza, M. A. C. (2006). "Heterodyne speckle velocimetry". Applied Physics Letters. 88 (19) 191101. Bibcode:2006ApPhL
Differential dynamic microscopy
Differential_dynamic_microscopy
Star in the constellation Canis Major
Wittkowski, M.; Langer, N.; Weigelt, G. (2004). "Diffraction-limited speckle-masking interferometry of the red supergiant VY CMa". Astronomy and Astrophysics
VY_Canis_Majoris
Ability of an organism to keep its body temperature within certain boundaries
(1992). "The thermal and energetic significance of clustering in the speckled mousebird, Colius striatus". Journal of Comparative Physiology B. 162 (7):
Thermoregulation
Entity that can be evaluated and is hard to predict
optical PUF (O-PUF). Pappu observed that different lasers produced distinct speckle patterns due to subtle manufacturing variations, demonstrating that these
Types of physical unclonable function
Types_of_physical_unclonable_function
Species of bird
trees in standing water with rushes. The eggs are pale blue with paler speckles and some whitish traces. Egg dimensions from various clutches in South
Cocoi_heron
as part of ribonucleoprotein complexes known as snRNPs within nuclear speckles and Cajal bodies of the eukaryotic nucleus. SnRNPs assemble into larger
Glossary of cellular and molecular biology (M–Z)
Glossary_of_cellular_and_molecular_biology_(M–Z)
American physicist (1852–1931)
as "Michelson Stellar Interferometry". This was to distinguish it from speckle interferometry, but should not be confused with the Michelson interferometer
Albert_A._Michelson
at 5.25 a.m., and then they led off into a deluge of small-arms fire, speckled with geyser-like eruptions as shells exploded in the mud. Worst of all
Military history of New Zealand during World War I
Military_history_of_New_Zealand_during_World_War_I
Type of analysis technique
Thermographic inspection Scanning thermal microscopy Laser testing Electronic speckle pattern interferometry Holographic interferometry Self-mixing laser interferometry
Nondestructive_testing
Species of owl
brown colour overall, while most individuals show little to no white speckling on the head, back and mantle. The Ural owl has a large distribution. In
Ural_owl
Species of bird
They are smooth, non-glossy and whitish in color, irregularly spotted or speckled and blotched with reddish-brown markings. There may be a concentration
Ferruginous_hawk
Species of skeleton shrimp
the substrate they are found in. The brood pouches of the females are speckled with red spots. A relatively large amphipod, C. mutica are sexually dimorphic
Caprella_mutica
Imaging method
232T. doi:10.1364/OL.29.000232. PMID 14759035. Sanner, Christian (2011). "Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas". Physical
Phase-contrast_imaging
Device for measuring a physical quantity
magnitude (density) Durometer Holographic interferometer Laser produced speckle pattern analysed. Resonant frequency and damping analyser (RFDA) Tribometer
List_of_measuring_instruments
Novel by Arkady and Boris Strugatsky
have, a nose disfigured by disease, a brow without eyebrows, and eyes speckled with bloody streaks on the whites. His eyes always burned with one expression:
Overburdened_with_Evil
Forest division in Kerala, India
with an area of 654 square kilometres (253 sq mi). Comparatively, human interference is less in these forests than in others in India. But at times of the
Ranni_Forest_Division
Species of fish
sides also typically have a pattern of lighter and darker mottling or speckles, as well as yellow fins. When viewed from the side, the Cooper Creek Catfish
Cooper_Creek_catfish
SPECKLE INTERFERENCE
SPECKLE INTERFERENCE
Girl/Female
Hebrew
Sparkle.
Surname or Lastname
German and Jewish (Ashkenazic)
German and Jewish (Ashkenazic) : occupational name for a purser, or for a purse-maker, from an agent derivative of Middle High German seckel, Yiddish zekl ‘purse’, ‘pouch’.English : from Old French seculier ‘secular’, hence a status name for a member of the secular clergy, or a nickname for someone without religious inclination.
Surname or Lastname
English
English : nickname for someone thought to resemble a woodpecker in some way, Middle English spek(e) (a reduced form of Old French espeche(e), of Germanic origin).
Boy/Male
Muslim/Islamic
Pen Speckled snake;
Girl/Female
Hebrew
Sparkle.
Surname or Lastname
English
English : topographic name from Middle English pigh(t)el ‘small field’, ‘paddock’ of obscure origin.Altered spelling of German Pickel.
Boy/Male
Indian
Pen, Speckled snake
Boy/Male
Scottish
Speckled.
Boy/Male
Indian, Sanskrit
Speckled Eyes
Boy/Male
Arabic, Indian, Muslim
Spotted; Speckled
Boy/Male
Scottish
Speckled.
Girl/Female
Hebrew
Sparkle.
Boy/Male
Muslim
Pen, Speckled snake
Boy/Male
Scottish American Anglo Saxon Celtic English French
Speckled.
Boy/Male
Muslim
Spotted, Speckled
Surname or Lastname
English (Cheshire)
English (Cheshire) : from Middle English hekel ‘heckle’, an implement for combing or scutching flax or hemp for spinning, hence a metonymic occupational name for someone who made or used heckles.French (Alsace; Hecklé) : from a diminutive of German Heck 2.
Surname or Lastname
German
German : from Middle High German spec ‘bacon’, hence a metonymic occupational name for a seller of bacon or a pork butcher, or a nickname for a bacon eater.German : topographic name from Middle High German speck(e) ‘log bridge’.English : variant of Speak.
Boy/Male
Scottish
Speckled.
Boy/Male
Muslim/Islamic
Spotted Speckled
Boy/Male
Australian, British, English, Welsh
Speckled; Spotted
SPECKLE INTERFERENCE
SPECKLE INTERFERENCE
Boy/Male
Australian, Danish, Finnish, German, Swedish
One; First Born
Boy/Male
Indian
Thankful of anybody, Satisfied, Contended, Pleased
Girl/Female
Christian & English(British/American/Australian)
Light
Surname or Lastname
English
English : variant of Brookhouse.
Girl/Female
Tamil
Ghaneswari | கநேஸà¯à®µà®¾à®°à¯€
Girl/Female
Arabic, English, German, Muslim, Punjabi
God-given; An Angel; Favoured by God; Consent; A Sweet
Girl/Female
Hindu, Indian
Bringing Happiness
Boy/Male
Anglo, Australian, Czechoslovakian, French, German, Greek, Polish, Ukrainian
Exalts; Crown; Garland
Boy/Male
Tamil
Sathyavache | ஸதà¯à®¯à®¾à®µà®¾à®šà¯‡
Always truthful' href='Boy-Names-for-Meaning-truthful.aspx'>truthful, Lord Rama, Speaker of truth
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Mythological, Oriya, Sanskrit, Tamil, Telugu
God of War; Elder Son of Lord Shiva
SPECKLE INTERFERENCE
SPECKLE INTERFERENCE
SPECKLE INTERFERENCE
SPECKLE INTERFERENCE
SPECKLE INTERFERENCE
n.
To emit sparks; to throw off ignited or incandescent particles; to shine as if throwing off sparks; to emit flashes of light; to scintillate; to twinkle; as, the blazing wood sparkles; the stars sparkle.
n.
A little or spot in or anything, of a different substance or color from that of the thing itself.
v. t.
To spinkle or mark with freckle or small discolored spots; to spot.
a.
Speckled; spotted.
imp. & p. p.
of Speck
a.
Variegated; spotted; speckled; piebald.
v. t.
To mark with small spots of a different color from that of the rest of the surface; to variegate with spots of a different color from the ground or surface.
n.
A very small thing; a particle; a mite; as, specks of dust; he has not a speck of money.
v. t.
To preserve or season in pickle; to treat with some kind of pickle; as, to pickle herrings or cucumbers.
a.
Spotted; speckled.
p. pr. & vb. n.
of Speckle
n.
Brilliancy; luster; as, the sparkle of a diamond.
n.
A small discolored place in or on anything, or a small place of a color different from that of the main substance; a spot; a stain; a blemish; as, a speck on paper or loth; specks of decay in fruit.
n.
A small reddish brown sweet and juicy pear. It originated on a farm near Philadelphia, afterwards owned by a Mr. Seckel.
v. t.
A troublesome child; as, a little pickle.
n.
A spot; a streak; a speckle.
v. t.
To mark with speckles or spots.
imp. & p. p.
of Speckle
v. t.
To cause the presence of specks upon or in, especially specks regarded as defects or blemishes; to spot; to speckle; as, paper specked by impurities in the water used in its manufacture.