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stellar surface is called Doppler-imaging, often based on the maximum entropy image reconstruction to find the stellar image. This technique gives the
Doppler_imaging
Frequency change of a wave for observer relative to its source
The Doppler effect (also Doppler shift) is the change in the frequency or, equivalently, the period of a wave in relation to an observer who is moving
Doppler_effect
Medical diagnostic method
Laser Doppler imaging (LDI), also called laser Doppler perfusion imaging (LDPI), is a non-contact optical technique for mapping signals related to microvascular
Laser_Doppler_imaging
Medical imaging technique of the heart
an image of the heart while the use of Doppler technology allows determination of the speed and direction of blood flow by utilizing the Doppler effect
Doppler_echocardiography
Ultrasound technique
flow) changes. It is an extension of Doppler ultrasonography. Brain activation can be directly measured by imaging electrical activity of neurons using
Functional_ultrasound_imaging
Medical diagnostic method
tissue Doppler imaging (TDI) and tissue velocity imaging (TVI) are usually synonymous with TDE because echocardiography is the main use of tissue Doppler. Like
Tissue Doppler echocardiography
Tissue_Doppler_echocardiography
Investigative astrophysics technique
In astrophysics, Zeeman–Doppler imaging is a tomographic technique dedicated to the cartography of stellar magnetic fields, as well as surface brightness
Zeeman–Doppler_imaging
Ultrasound imaging of the movement of tissues and body fluids using the Doppler effect
Doppler ultrasonography is medical ultrasonography that employs the Doppler effect to perform imaging of the movement of tissues and body fluids (usually
Doppler_ultrasonography
Measuring technique
holographic interferometry is sensitive enough to enable wide-field, laser Doppler imaging of optical fluctuations in amplitude and phase, either with a slow
Holographic_interferometry
Medical condition
result in a rhythm that seems irregular. Electrocardiography and laser Doppler imaging allow to visualize premature heart beats. From their appearance, their
Premature_heart_beat
Chart of tissue blood volume changes
is crucial for larger image field of view. A refinement of holographic photoplethysmography, holographic laser Doppler imaging, enables non-invasive blood
Photoplethysmogram
Medical condition
transthoracic or transesophageal echocardiography, color flow mapping, and Doppler imaging. Use of the various test can help to differentiate other possible conditions
Lutembacher's_syndrome
Use of light for medical investigation
scanning laser ophthalmoscopy, laser Doppler imaging, optical coherence tomography, and transdermal optical imaging. Because light is an electromagnetic
Medical_optical_imaging
Optical method of measuring fluid flow
technology is often referred to as laser Doppler flowmetry; when images are made, it is referred to as laser Doppler imaging. The beam from a low-power laser
Laser_Doppler_velocimetry
Optic nerve head, the point of exit for ganglion cell axons leaving the eye
asymmetry in out-of-plane retinal vessels by holographic laser Doppler imaging. Three dimensional image of a healthy optic disc in a 24-year-old female. Optic
Optic_disc
Parameter-free superresolution algorithm
application with the SAMV algorithm in SISO radar/sonar range-Doppler imaging problem. This imaging problem is a single-snapshot application, and algorithms
SAMV_(algorithm)
Doppler imaging which produces maps of the surfaces of stars Zeeman–Doppler imaging which maps the magnetic fields of stars List of directly imaged exoplanets
List of stars with resolved images
List_of_stars_with_resolved_images
European space observatory
evolution of the corona by creating an artificial solar eclipse. Michelson Doppler Imager (MDI), which measures velocity and magnetic fields in the photosphere
Solar and Heliospheric Observatory
Solar_and_Heliospheric_Observatory
Technique and process of creating visual representations of the interior of a body
Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation
Medical_imaging
Medical condition
a rapid and noninvasive way of monitoring the macular edema. Laser Doppler imaging reveals dynamic hemodynamics discrepancies between branch arteries
Branch_retinal_vein_occlusion
Medical intervention
sonography: This imaging technique makes use of the Doppler effect in detection and measuring moving targets, typically blood. Harmonic imaging: backscattered
Medical_ultrasound
Radio wave detection and transmission system defined by its separation
always have 0 Hz Doppler shift, as will objects moving around an ellipse of constant bistatic range. Bistatic imaging is a radar imaging technique using
Bistatic_radar
Medical condition
phenomenon or digital gangrene are very rare in Takayasu arteritis. Laser Doppler imaging by near-infrared digital holography can reveal characteristic blood
Takayasu's_arteritis
Dynamics of blood flow
cardiovascular diseases. Laser Doppler imaging by digital holography can measure blood flow in the retina and choroid, whose Doppler responses exhibit a pulse-shaped
Hemodynamics
Stellar phenomenon
methods. For rapidly rotating stars – Doppler imaging and Zeeman-Doppler imaging. With the Zeeman-Doppler imaging technique the direction of the magnetic
Starspot
Photoacoustic spectroscopy Photoacoustic imaging in biomedicine Photoacoustic tomography Doppler effect laser Doppler imaging Doppler optical coherence tomography
Photoacoustic_Doppler_effect
Physiological and psychological changes in preparation for sexual intercourse
measures changes in temperature of the labia. More recently, laser Doppler imaging (LDI) has been used as a direct measure of genital sexual arousal in
Sexual_arousal
Medical diagnostic method
rate imaging, the simultaneous function of different regions can be displayed and measured. The method was first based on colour tissue Doppler. by using
Strain_rate_imaging
Vascular layer of the eye
cross section of the human eye; choroid is shown in purple. Laser Doppler imaging of retinal and choroidal blood flow Iris, front view The terminal portion
Choroid
Lying horizontally with the face and torso facing up
semi-supine exercise echocardiography--influence of age on myocardial Doppler imaging indices". Acta Cardiologica. 61 (3): 271–7. doi:10.2143/ac.61.3.2014827
Supine_position
Identical twins sharing the same amniotic sac in the womb
would be visible if present. Further ultrasounds with high resolution doppler imaging and non-stress tests help to assess the situation and identify potential
Monoamniotic_twins
Device to determine relative phase shift
limited holography with video-rate cameras, vibrometry, and laser Doppler imaging of blood flow. In optical telecommunications it is used as an electro-optic
Mach–Zehnder_interferometer
Radar countermeasure
Jiaqiu (2022-08-07). "Chaff identification method based on Range-Doppler imaging feature". IET Radar, Sonar & Navigation. 16 (11): 1861–1871. doi:10
Chaff_(countermeasure)
Method of spatial measurement using laser
lidar allows imaging lidar without the need for an array detector. It can be used for imaging Doppler velocimetry, ultra-fast frame rate imaging (millions
Lidar
Most common type of echocardiogram
of Doppler echocardiography and tissue Doppler imaging in the estimation of left ventricular filling pressures: A comparative simultaneous Doppler-catheterization
Transthoracic_echocardiogram
Instrument for sensing microscopic vibrations of a surface
A laser Doppler vibrometer (LDV) is a scientific instrument that is used to make non-contact vibration measurements of a surface. The laser beam from
Laser_Doppler_vibrometer
Topics referred to by the same term
diffraction imaging, a lensless nanoscale imaging technique Current density imaging, an extension of magnetic resonance imaging (MRI) Color doppler imaging, a
CDI
Application of radar which is used to create two-dimensional images
Imaging radar is an application of radar which is used to create two-dimensional images, typically of landscapes. Imaging radar provides its light to
Imaging_radar
Star in the constellation of Scorpius
magnetic star whose surface magnetic field was mapped by means of Zeeman–Doppler imaging. Tau Scorpii is rotating relatively slowly with a period of 41 days
Tau_Scorpii
Speed of the heartbeat, measured in beats per minute
include seismocardiography. Pulse oximetry of the finger and laser Doppler imaging of the eye fundus are often used in the clinics. Those techniques can
Heart_rate
Constellation in the northern celestial hemisphere
of the Sun was detected on its surface in 1999 by astronomers using Doppler imaging. Two star systems appear to have planets. HD 9446 is a Sun-like star
Triangulum
Ultrasound-based diagnostic imaging technique
common imaging techniques used to evaluate carotid artery disease. Carotid ultrasound is a low-cost, noninvasive, and accurate diagnostic imaging modality
Carotid_ultrasonography
Imaging by sections or sectioning using a penetrative wave
Chemical imaging 3D reconstruction Discrete tomography Geometric tomography Geophysical imaging Industrial computed tomography Johann Radon Medical imaging Network
Tomography
Scientific phenomenon
The relativistic Doppler effect is the change in frequency, wavelength and amplitude of light, caused by the relative motion of the source and the observer
Relativistic_Doppler_effect
Medical diagnostic method
mortality. Mapping of the local arterial resistivity index from laser Doppler imaging enables unambiguous identification of retinal arteries and veins on
Arterial_resistivity_index
Medical imaging technique of the heart
examine the heart. It is a type of medical imaging, using standard ultrasound or Doppler ultrasound. The visual image formed using this technique is called
Echocardiography
NASA-operated orbital observatory (1991-2011)
High Resolution Doppler Imager". Archived from the original on September 24, 2011. Retrieved September 10, 2011. "WINDII - The Wind Imaging Interferometer"
Upper Atmosphere Research Satellite
Upper_Atmosphere_Research_Satellite
White dwarf in the constellation Virgo
clumps moving. Spectroscopic data from 2003 to 2015 were used for doppler imaging, which resolved the gaseous disk. The changes in calcium emission were
SDSS_J1228+1040
Group of eye diseases related to poor retinal and nerve perfusion
(2020). "Retinal blood flow reversal in out-of-plane vessels imaged with laser Doppler holography". arXiv:2008.09813 [physics.med-ph]. Alguire P (1990)
Glaucoma
Colored part of an eye
photographs of human irides Histology image: 08010loa – Histology Learning System at Boston University Atlas image: eye_1 at the University of Michigan
Iris_(anatomy)
Binary star in the constellation of Andromeda
Applying Doppler imaging to the observations allowed Adelman et al. to find that it was concentrated in clouds near the equator. Subsequent Doppler imaging studies
Alpheratz
Method of utilizing water in magnetic resonance imaging
diffusion tensor imaging (DTI), has been used extensively to map white matter tractography in the brain. In diffusion weighted imaging (DWI), the intensity
Diffusion-weighted magnetic resonance imaging
Diffusion-weighted_magnetic_resonance_imaging
Eye disease characterized by leakage of fluid under the retina
correlate with disease severity and possibly treatment outcome. Laser Doppler imaging can be used to reveal the underlying swollen choroidal vessels under
Central serous chorioretinopathy
Central_serous_chorioretinopathy
Medical condition
machine with a 3.5 MHz abdominal probe, using gray-scale and color Doppler imaging immediately prior to induction of labor. Presence of the cord was sought
Nuchal_cord
Topics referred to by the same term
Time delay and integration, timing synchronization in an image sensor Tissue Doppler imaging, a medical ultrasound technology Tabbed document interface
TDI
Radar used to locate and monitor meteorological conditions
A weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its
Weather_radar
Fleet of truck-mounted weather radars
Doppler on Wheels (DOW) is a fleet of quickly deployable truck-mounted weather radars managed by FARM (Flexible Array of Radars and Mesonets), an American
Doppler_on_Wheels
Chemically peculiar stars of spectral types A and B
studying these stars high-resolution spectroscopy is used, together with Doppler imaging which uses the rotation to deduce a map of the stellar surface. These
Ap_and_Bp_stars
Medical imaging procedure
of these organs, or to look at adjacent structures. Combined with Doppler imaging, nearby blood vessels can also be evaluated. Endoscopic ultrasonography
Endoscopic_ultrasound
Medical imaging of the penis
penile erection, with or without sexual stimulation. Color Doppler ultrasound is the imaging method of choice for the investigation of priapism, because
Penile_ultrasonography
Form of radar used to create images of landscapes
stationary antenna. A synthetic-aperture radar is an imaging radar mounted on a moving platform. SAR is a Doppler technique. It is based on the fact that "radar
Synthetic-aperture_radar
Unanticipated finding unrelated to the original inquiry
In medical or research imaging, an incidental imaging finding (also called an incidentaloma or an incidental finding) is an unanticipated finding which
Incidental_imaging_finding
Pressure exerted by circulating blood upon the walls of arteries
flow velocity waveforms in the central retinal artery (red) and vein (blue), measured by laser Doppler imaging in the eye fundus of a healthy volunteer.
Blood_pressure
Medical diagnostic method
tissue structure and flow velocity imaging, as spectral-domain OCT is limited to fast imaging. Phase-resolved Doppler OCT, based around the invention of
Doppler optical coherence tomography
Doppler_optical_coherence_tomography
Damage to the eye's retina due to high blood pressure
branch arteries can result from hypertension. Microangiography by laser Doppler imaging may reveal altered hemodynamics non-invasively. Mild signs of hypertensive
Hypertensive_retinopathy
Medical diagnostic method
reveal endoluminal blood flow profiles in the retina and choroid. Laser Doppler imaging by holography provides high-contrast visualization of local blood flow
Microangiography
Imaging technique
estimated to be used in more than 30 million imaging procedures per year worldwide. Intravascular OCT imaging is used in the intravascular evaluation of
Optical_coherence_tomography
Astronomer and exoplanet researcher
structure, and circulation. In 2014, Crossfield and collaborators used Doppler imaging to map large-scale bright and dark surface features on Luhman 16B,
Ian_Crossfield
Star system in the constellation Triangulum
huge starspot larger than the diameter of the Sun, discovered using Doppler imaging. For its size, the star has a rapid rotation rate of about 24 days
XX_Trianguli
Medical diagnostic method
transcranial Doppler, below). Two methods of recording may be used for this procedure. The first uses "B-mode" imaging, which displays a 2-dimensional image of
Transcranial_Doppler
the First Time. Scientific American Crossfield, I. J. M. (2014). "Doppler imaging of exoplanets and brown dwarfs". Astronomy & Astrophysics. 566: A130
Exoplanet orbital and physical parameters
Exoplanet_orbital_and_physical_parameters
Common configuration for optical interferometry
Spectral Imaging of the Atmosphere. Academic Press. ISBN 0-12-639481-4. Shepherd, G. G.; et al. (1985). "WAMDII: wide angle Michelson Doppler imaging interferometer
Michelson_interferometer
Measurement method using interference of waves
for imaging; for example, the H-alpha line or the Ca-K line of the Sun or stars. Fig. 10 shows an Extreme ultraviolet Imaging Telescope (EIT) image of
Interferometry
Swelling of the eye's optic disc due to high intracranial pressure
herniation, however newer imaging techniques have been more useful at determining when and when not to conduct a lumbar puncture. Imaging by CT or MRI is usually
Papilledema
Star system in the constellation Andromeda
stars who has been resolved using Doppler imaging and long-baseline infrared interferometry. With resolved images astronomers can recover additional
Zeta_Andromedae
Star in the constellation Microscopium
6A. doi:10.3847/1538-4365/acb535. Wolter, U.; et al. (May 2005), "Doppler imaging of Speedy Mic using the VLT. Fast spot evolution on a young K-dwarf
Speedy_Mic
American astronomer of German descent (born 1949)
discovered). In 1987, earlier in his career, Vogt invented the technique of "Doppler imaging" for mapping the surface features of stars. Vogt is currently a member
Steven_S._Vogt
Temporary spots on the Sun's surface
analyzing variations in spectral line splitting due to the Zeeman effect; Doppler imaging showed differential rotation of spots for several stars and distributions
Sunspot
Reported meteorological phenomenon
of migration. The Doppler image to the right shows an example wherein a group of bats is overtaken by a thunderstorm. In the image, the bats are in the
Rain_of_animals
Triple star system in the constellation Taurus
starspots. Doppler imaging confirmed these starspots are associated with the K subgiant. (It was the first cool star to have its surface Doppler imaged.) The
HR_1099
Large self-illuminated object in space
which is called its proper motion. Radial velocity is measured by the doppler shift of the star's spectral lines and is given in units of km/s. The proper
Star
Star whose brightness fluctuates, as seen from Earth
These may show darker spots on its surface. One such technique is Doppler imaging, which can use the shift of spectral lines to measure velocity, then
Variable_star
Extension of endometrial tissue into the myometrium
non-invasive imaging. Nevertheless, non-invasive imaging techniques such as transvaginal ultrasonography (TVUS) and magnetic resonance imaging (MRI) can
Adenomyosis
Object detection system using radio waves
Terrain-following radar Radar imaging Radar navigation Inverse-square law Wave radar Radar signal characteristics Pulse doppler radar Mmwave sensing Acronyms
Radar
Inflammation due to periodic blood vessel blockage
(2013). "Combined computer assisted capillary microscopy and laser Doppler imaging used to assess redistribution changes in skin of erythromelalgic patients
Erythromelalgia
Star in the constellation Aquila
while conducting a search for stars that would be good candidates for Doppler imaging. It was given its variable star designation, V1703 Aquilae, in 2006
HD_192263
Alternate blood flow around a blockage
Collateral tortuous vein (center, left) in central retinal vein occlusion, revealed by laser Doppler imaging.
Collateral_circulation
Human eye disease causing full or partial blindness
vessels may be seen. Imaging studies such as ultrasonography (US), Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) can aid diagnosis
Coats'_disease
Type of medical monitoring during surgery
depends in part on which neural structures are at risk. Transcranial Doppler imaging (TCDI) is also becoming more widely used to detect vascular emboli
Intraoperative neurophysiological monitoring
Intraoperative_neurophysiological_monitoring
Blood vessel supplying the retina of the eye
Its blood flow can be revealed by fluorescein angiography or laser Doppler imaging. Thus if the central retinal artery gets occluded, there is complete
Central_retinal_artery
Organ that connects the fetus to the uterine wall
at the left in the image Micrograph of a placental infection (CMV placentitis) Micrograph of CMV placentitis A 3D Power Doppler image of vasculature in
Placenta
American theoretical physicist
"Determination of the Sun's Seismic Radius from the SOHO Michelson Doppler Imager". The Astrophysical Journal. 489: L197. Bibcode:1997ApJ...489L.197S
Philip_R._Goode
Radar 2D mapping technique
radar (ISAR) is a radar technique using radar imaging to generate a two-dimensional high resolution image of a target. It is analogous to conventional
Inverse synthetic-aperture radar
Inverse_synthetic-aperture_radar
Velamentous placenta
of velamentous umbilical cord insertion and vasa previa with color Doppler imaging". Ultrasound in Obstetrics and Gynecology. 12 (6): 426–429. doi:10
Velamentous_cord_insertion
Medical diagnostic method
A Doppler fetal monitor, informally known as sonicaid (generic trademark), is a hand-held ultrasound transducer used to detect the fetal heartbeat for
Doppler_fetal_monitor
Medical condition
specific area of tissue). Studies with PET scanning and transcranial Doppler imaging have shown that changes in cerebral blood flow, such as hypoperfusion
Penetrating_head_injury
Magnetic field generated inside a star
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Doppler imaging
Stellar_magnetic_field
Variable star in the constellation Ursa Major
CR Ursae Majoris in 1974. In 1994 John Rice and William Wehlau used Doppler imaging to map the distribution of iron and chromium on the surface of 84 Ursae
84_Ursae_Majoris
Asteroid spectral type
known after 16 Psyche and 22 Kalliope. Radar delay-Doppler imaging, high-resolution telescopic images, and several stellar occultations show it to be a
M-type_asteroid
Star in the constellation Phoenix
surface of the stars. The reconstruction of the surface of the system by Doppler imaging revealed significant spot coverage in the entire surface of both stars
AE_Phoenicis
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