Find link

language:

Find link is a tool written by Edward Betts.

Longer titles found: Spatial frequency domain imaging (view)

searching for Spatial frequency 151 found (215 total)

Super-resolution imaging (3,041 words) [view diff] no match in snippet view article find links to article

Maxwell's equations. Spatial-frequency domain: A succinct expression of the diffraction limit is given in the spatial-frequency domain. In Fourier optics

Minimum resolvable contrast (167 words) [view diff] exact match in snippet view article find links to article

contrast v.s. spatial frequency at a given luminance level. A first order polynomial is fitted to the data and an MRC curve of spatial frequency versus contrast

Optical resolution (4,746 words) [view diff] exact match in snippet view article find links to article

flat plane, such as photographic film or a solid state detector, spatial frequency is the preferred domain, but when the image is referred to the lens

Naomi Weisstein (2,112 words) [view diff] exact match in snippet view article find links to article

non-flickering regions perception, and figure-ground organization and spatial frequency. All of her studies were in collaboration with other notable researchers

Fourier shell correlation (784 words) [view diff] exact match in snippet view article find links to article

function of spatial frequency). The FSC is the three-dimensional extension of the two-dimensional Fourier ring correlation (FRC); also known as: spatial frequency

White's illusion (1,018 words) [view diff] exact match in snippet view article find links to article

should be lighter. White and White (1985) concluded that at a higher spatial frequency the grating of White's illusion could be described by brightness assimilation

Spin density wave (1,096 words) [view diff] exact match in snippet view article find links to article

density of the electronic spins and charges with a characteristic spatial frequency q {\displaystyle q} that does not transform according to the symmetry

Ronchi ruling (329 words) [view diff] exact match in snippet view article find links to article

illumination, or a stop pattern by transmission, with precise uniformity, spatial frequency, sharp edge definition, and high contrast ratio. Ronchi rulings are

Wavenumber–frequency diagram (275 words) [view diff] exact match in snippet view article find links to article

diagram is a plot displaying the relationship between the wavenumber (spatial frequency) and the frequency (temporal frequency) of certain phenomena. Usually

Spectral signal-to-noise ratio (441 words) [view diff] exact match in snippet view article find links to article

images over corresponding rings in Fourier space as a function of spatial frequency. It is a multi-particle extension of the Fourier ring correlation

Smear (optics) (194 words) [view diff] exact match in snippet view article

{smear} }(u)={\frac {\sin(\pi \alpha u)}{\pi \alpha u}}} where u is the spatial frequency and α {\displaystyle \alpha } is the amplitude of the smear in pixels

K-space in magnetic resonance imaging (963 words) [view diff] exact match in snippet view article find links to article

spin density distribution in two dimensions. Thus position (x,y) and spatial frequency ( k F E {\displaystyle k_{\mathrm {FE} }} , k P E {\displaystyle k_{\mathrm

Harold Hopkins (physicist) (2,650 words) [view diff] exact match in snippet view article

normalised to make the contrast at zero spatial frequency equal to unity, expressed as a function of spatial frequency, is the definition of the modulation

Visual cortex (8,064 words) [view diff] exact match in snippet view article find links to article

information, such as the analysis of basic features like orientation, spatial frequency, and color. The integration of these features in the striate cortex

Image texture (1,293 words) [view diff] exact match in snippet view article find links to article

images. For more accurate segmentation the most useful features are spatial frequency and an average grey level. To analyze an image texture in computer

Bahtinov mask (526 words) [view diff] exact match in snippet view article find links to article

asymmetric spikes representing the transform of the mask pattern's spatial frequency and orientation. A very bright star and very dark sky are required

Cosmic infrared background (2,415 words) [view diff] exact match in snippet view article find links to article

is the fluctuation power at the spatial frequency f, P0 is the fluctuation power at the reference spatial frequency f0, and α is the spectral index.

Curvelet (1,283 words) [view diff] exact match in snippet view article find links to article

Fourier transform by using a basis that represents both location and spatial frequency. For 2D or 3D signals, directional wavelet transforms go further,

Star tracker (1,286 words) [view diff] exact match in snippet view article find links to article

trackers are also susceptible to a variety of errors (low spatial frequency, high spatial frequency, temporal, ...) in addition to a variety of optical sources

Tunnel vision (2,205 words) [view diff] exact match in snippet view article find links to article

visual field is associated with magnocellular pathways, processing low spatial frequency information, which encompasses broad details, and the central visual

Haplogroup L6 (242 words) [view diff] exact match in snippet view article find links to article

Projected spatial frequency distribution for haplogroup L6.

Evoked potential (5,224 words) [view diff] exact match in snippet view article find links to article

be investigated. By frequency-tagging two superimposed gratings, spatial frequency and orientation tuning properties of the brain mechanisms that process

Phase retrieval (2,898 words) [view diff] exact match in snippet view article find links to article

is an M-dimensional spatial coordinate and k is an M-dimensional spatial frequency coordinate. Phase retrieval consists of finding the phase that satisfies

Lloyd's mirror (1,181 words) [view diff] exact match in snippet view article find links to article

biofunctionality. High visibility cos2-modulated fringes of constant spatial frequency can be generated in a Lloyd's mirror arrangement using parallel collimated

Visual short-term memory (2,613 words) [view diff] exact match in snippet view article find links to article

perceptual dimensions comprising a visual stimulus are stored (e.g., spatial frequency, luminance, or contrast) whether perceptual dimensions are maintained

Image scaling (1,854 words) [view diff] no match in snippet view article find links to article

image Original image in spatial-frequency domain 2D low-pass filtered, but still at 160x160px Filtered image in spatial-frequency domain low-pass filtered

Visual tilt effects (2,651 words) [view diff] exact match in snippet view article find links to article

effects have been tested with various stimulus parameters, such as spatial frequency, color, luminance and contrast differences between the test grating

Beckman Laser Institute (1,496 words) [view diff] exact match in snippet view article find links to article

oxygenated and deoxygenated hemoglobin within the brain's blood vessels. Spatial frequency domain imaging (SFDI) is a reflectance technique that models absorption

Phantom contour (2,078 words) [view diff] exact match in snippet view article find links to article

adjusts spatial frequency, and temporal frequency is manipulated by increases and decreases in flicker rate. Findings show that as spatial frequency is increased

Occipital lobe (1,315 words) [view diff] no match in snippet view article find links to article

cortex. It contains a low-level description of the local orientation, spatial-frequency and color properties within small receptive fields. Primary visual

Susan Y. Bookheimer (299 words) [view diff] exact match in snippet view article find links to article

patterns from APOE-4 carriers. Bookheimer, Susan Y. (1989). Effects of spatial frequency, task demands, and unilateral brain injury on the recognition of faces

Stereopsis (5,499 words) [view diff] exact match in snippet view article find links to article

processes low spatial frequency disparities and motion, and fine stereopsis with the parvo pathway which processes high spatial frequency disparities.

Haplogroup L4 (392 words) [view diff] exact match in snippet view article find links to article

Projected spatial frequency distribution for haplogroup L4.

Binocular vision (3,690 words) [view diff] exact match in snippet view article find links to article

amblyopia. Other factors that can affect binocular summation include, spatial frequency, stimulated retinal points, and temporal separation. Apart from binocular

Plane wave (1,123 words) [view diff] exact match in snippet view article find links to article

amplitude of the wave; the scalar coefficient f {\displaystyle f} is its "spatial frequency"; and the scalar φ {\displaystyle \varphi } is its "phase shift".

Moiré pattern (4,166 words) [view diff] exact match in snippet view article find links to article

greater than 1. The quantity k represents the periodic variation (i.e., spatial frequency) of the pattern's grey intensity, measured as the number of intensity

Trypophobia (1,751 words) [view diff] exact match in snippet view article find links to article

spatial frequencies." Cole and Wilkins also stated the imagery has high spatial frequency with greater energy at mid-range. Whether together or separate, it

List of physical quantities (192 words) [view diff] exact match in snippet view article find links to article

distance between repeating units of a wave m L Wavenumber k Repetency or spatial frequency: the number of cycles per unit distance m−1 L−1 scalar Work W Transferred

Stanley A. Klein (830 words) [view diff] case mismatch in snippet view article find links to article

are identified. NIH/NEI, 5/1/00-4/30/03. $170,000 per year. "High Spatial Frequency Feature Acuity in Spatial Vision." CULAR, Collaborative UC-Los Alamos

Contrast transfer function (2,946 words) [view diff] exact match in snippet view article find links to article

spherical aberration of the objective lens, k {\displaystyle k} = the spatial frequency (units of m−1) Spherical aberration is a blurring effect arising when

Resolution (structural biology) (1,121 words) [view diff] exact match in snippet view article

of the Fourier ring correlation (FRC), which is also known as the spatial frequency correlation function. The FSC is a comparison of the Fourier transforms

Grating light valve (1,069 words) [view diff] exact match in snippet view article find links to article

wavelength to diffract is determined by the spatial frequency of the ribbons. As this spatial frequency is determined by the photolithographic mask used

Difference of Gaussians (1,312 words) [view diff] exact match in snippet view article find links to article

enhancing high frequency detail, but because random noise also has a high spatial frequency, many of these sharpening filters tend to enhance noise, which can

Haplogroup H (mtDNA) (4,964 words) [view diff] exact match in snippet view article

Projected spatial frequency distributions for haplogroups H*, H1, H2a, H3, H4, H5a, H6a, H7, H8 and H11

Unsharp masking (1,527 words) [view diff] no match in snippet view article find links to article

photographic paper, the partial cancellation emphasizes the high-spatial-frequency information (fine detail) in the original, without loss of highlight

Continuous gusts (1,517 words) [view diff] exact match in snippet view article find links to article

turbulence intensity, Lu is the turbulence scale length, and Ω is a spatial frequency. The Dryden model has rational power spectral densities for each velocity

Cochlea (3,526 words) [view diff] exact match in snippet view article find links to article

1978). "Stiffness gradient along the basilar membrane as a way for spatial frequency analysis within the cochlea" (PDF). J Acoust Soc Am. 64 (6): 1723–6

Juris Upatnieks (356 words) [view diff] case mismatch in snippet view article find links to article

Reconstruction Using a Coherent Reference Beam 1970 U.S. patent 3,532,407 Spatial Frequency Reduction in Holography 1970 U.S. patent 3,539,241 Method of Imaging

Haplogroup R0 (1,650 words) [view diff] exact match in snippet view article find links to article

Projected spatial frequency distribution of haplogroup R0a. Most common in the Arabian Peninsula, with a peak in nearby Socotra (~40%; see observed frequencies

Blind deconvolution (1,057 words) [view diff] exact match in snippet view article find links to article

reference image. The algorithm estimates the PSF by comparing the spatial frequency information in the blurred image to that of the target image. Examples

Baruch Fischer (2,040 words) [view diff] exact match in snippet view article find links to article

null (May 2000). "Experimental observation of localization in the spatial frequency domain of a kicked optical system". Physical Review E. 61 (5A): R4694–4697

Dimensionless quantity (2,254 words) [view diff] exact match in snippet view article find links to article

observers moving at different velocities Fresnel number – wavenumber (spatial frequency) over distance Beta (plasma physics) – ratio of plasma pressure to

Aperture masking interferometry (580 words) [view diff] exact match in snippet view article find links to article

synthesis). Each pair of holes provides a set of fringes at a unique spatial frequency in the image plane. Partially redundant masks are usually designed

Binocular Switch Suppression (2,261 words) [view diff] exact match in snippet view article find links to article

following parameters: luminance contrast, density, colour contrast and spatial frequency content. An image with weaker signal strength is more likely to be

Eleanor Maguire (1,879 words) [view diff] exact match in snippet view article find links to article

(2012). "Exploring the parahippocampal cortex response to high and low spatial frequency spaces". NeuroReport. 23 (8): 503–507. doi:10.1097/WNR.0b013e328353766a

Geometric phase analysis (636 words) [view diff] exact match in snippet view article find links to article

a periodicity of the crystal lattice, must be transformed into a spatial frequency representation using a 2D Fourier transform. From a mathematical point

Wi-Fi 6 (1,419 words) [view diff] exact match in snippet view article find links to article

the AP has no information about pending UL traffic at a station. Spatial frequency reuse not available Coloring enables devices to differentiate transmissions

Wi-Fi 6 (1,419 words) [view diff] exact match in snippet view article find links to article

the AP has no information about pending UL traffic at a station. Spatial frequency reuse not available Coloring enables devices to differentiate transmissions

Momentum operator (2,144 words) [view diff] exact match in snippet view article find links to article

} that is, the momentum acting in coordinate space corresponds to spatial frequency, ⟨ x | p ^ | ψ ⟩ = − i ℏ d d x ψ ( x ) . {\displaystyle \langle x|{\hat

Sensory maps and brain development (1,091 words) [view diff] exact match in snippet view article find links to article

Retino-topic maps: visual field position, orientation, direction, spatial frequency Tonotopic maps: interaural time difference, frequency tonotopic maps

Binocular rivalry (2,030 words) [view diff] exact match in snippet view article find links to article

PMID 11823801. S2CID 8410171. Wolfe, Jeremy M (1983). "Influence of spatial frequency, luminance, and duration on binocular rivalry and abnormal fusion

Interstitial lung disease (2,996 words) [view diff] no match in snippet view article find links to article

resolution CT examines 1–1.5 mm slices at 10 mm intervals using a high-spatial-frequency reconstruction algorithm. The HRCT therefore provides approximately

Pure alexia (2,199 words) [view diff] case mismatch in snippet view article find links to article

2012). "Efficient Visual Object and Word Recognition Relies on High Spatial Frequency Coding in the Left Posterior Fusiform Gyrus: Evidence from a Case-Series

Image formation (1,192 words) [view diff] exact match in snippet view article find links to article

pixel, MTF(ξ) = sin(πξp)/πξp where p is the pixel width and ξ is the spatial frequency. The MTF of the combination of the lens and detector is the product

Coherence (physics) (4,069 words) [view diff] exact match in snippet view article

separation distance. In that case, coherence is a function of wavenumber (spatial frequency). The coherence varies in the interval 0 ≤ γ x y 2 ( f ) ≤ 1 {\displaystyle

Haplogroup J (mtDNA) (2,724 words) [view diff] exact match in snippet view article

Projected spatial frequency distribution for haplogroup J.

Computer-generated holography (2,595 words) [view diff] case mismatch in snippet view article find links to article

ISSN 2076-3417. J.J. Burch (1967). "A Computer Algorithm for the Synthesis of Spatial Frequency Filters". Proceedings of the IEEE. 55 (4): 599–601. doi:10.1109/PROC

Geophysical survey (2,959 words) [view diff] exact match in snippet view article find links to article

t-k'x)}\,dx\,dt} ω represents temporal frequency and k represents spatial frequency. s(x,t) is a 4-dimensional space-time signal which can be imagined

Video quality (2,792 words) [view diff] exact match in snippet view article find links to article

pixel-based metrics include: Spatial Blurring — a result of loss of high spatial frequency image detail, usually at sharp edges. Blocking — is caused by multiple

Haplogroup K (mtDNA) (3,037 words) [view diff] exact match in snippet view article

Projected spatial frequency distribution for haplogroup K.

Visual processing (2,048 words) [view diff] exact match in snippet view article find links to article

Physiological reviews, 88(1), 59–89. Perera-W.A., H. (2019). Identifying the spatial frequency specific orientation aftereffect in the visual system. https://peerj

Eye movement (3,647 words) [view diff] exact match in snippet view article find links to article

during scene viewing: Immediate degradation and enhancement effects of spatial frequency filtering". Visual Cognition. 22 (3–4): 486–502. doi:10.1080/13506285

Mechanotransduction (3,046 words) [view diff] exact match in snippet view article find links to article

(2009-05-08). "Stiffness gradient along the basilar membrane as a basis for spatial frequency analysis within the cochlea". doi:10.18725/OPARU-1218. {{cite journal}}:

Geophysical signal analysis (2,204 words) [view diff] exact match in snippet view article find links to article

relative to time. Frequency of a wave can be X cycles per second. Spatial frequency on the other hand is the characteristic of any entity that periodically

Haplogroup R-M269 (6,727 words) [view diff] exact match in snippet view article find links to article

distribution of haplogroup frequency of hgR1b1b2, shown as an interpolated spatial frequency surface. Filled circles indicate populations for which microsatellite

Position and momentum spaces (2,376 words) [view diff] exact match in snippet view article find links to article

and the concept of frequency domain. Since a free particle has a spatial frequency k = | k | = 2 π / λ {\displaystyle k=|\mathbf {k} |=2\pi /\lambda

Morlet wavelet (1,858 words) [view diff] exact match in snippet view article find links to article

Way. J. G. Daugman. Uncertainty relation for resolution in space, spatial frequency, and orientation optimized by two-dimensional visual cortical filters

Holonomic brain theory (3,470 words) [view diff] exact match in snippet view article find links to article

neurophysiologists Russell and Karen DeValois together established "the spatial frequency encoding displayed by cells of the visual cortex was best described

PenTile matrix family (2,727 words) [view diff] exact match in snippet view article find links to article

spatial frequencies, but not the highest of the diagonal. Diagonal high spatial frequency information in the red and blue channels of the input image are transferred

Fixation (visual) (2,891 words) [view diff] exact match in snippet view article

(whitening) spatial power at non-zero temporal frequencies across a broad spatial frequency range. Ocular drift of one type was first found to be caused by an

Complex cell (1,904 words) [view diff] exact match in snippet view article find links to article

knowing these properties of the subunits, it was possible to predict spatial frequency selectivity, as was the case for simple cells. Hence, complex cells

Radovan Stojanović (900 words) [view diff] no match in snippet view article find links to article

An efficient hardware design of the flexible 2-D system for space/spatial-frequency signal analysis, Veselin N Ivanovic, Radovan D Stojanovic, IEEE transactions

Phased array (5,289 words) [view diff] case mismatch in snippet view article find links to article

radar. The other type of frequency domain beamformer makes use of Spatial Frequency. Discrete samples are taken from each of the individual array elements

Oddball paradigm (1,929 words) [view diff] exact match in snippet view article find links to article

Hotchkiss J, Heron J, Whitaker D (June 2011). "Perceived time is spatial frequency dependent". Vision Research. 51 (11): 1232–1238. doi:10.1016/j.visres

Multidimensional transform (4,602 words) [view diff] exact match in snippet view article find links to article

spans from 0 to N/2. The author wanted to compute an equal value for spatial frequency such as: A m ( f ) 2 = [ ∑ i = − f f FFT ⁡ ( − f , i ) 2 + ∑ i = −

Zebra (8,395 words) [view diff] exact match in snippet view article find links to article

N.; Rumball, D. A. (1987). "Zebra stripes and tiger stripes: the spatial frequency distribution of the pattern compared to that of the background is

Guanches (6,758 words) [view diff] exact match in snippet view article find links to article

Spatial frequency distribution (%) of haplogroup H1 in western Eurasia and North Africa

Noiselet (1,407 words) [view diff] exact match in snippet view article find links to article

reconstruct the original signal at a reduced resolution. As not all of the spatial frequency components are sampled by noiselet encoding, the undersampling allows

Polar coordinate system (6,702 words) [view diff] exact match in snippet view article find links to article

or amplitude of the petals of the rose, while k relates to their spatial frequency. The constant γ0 can be regarded as a phase angle. The Archimedean

Gabor filter (2,530 words) [view diff] exact match in snippet view article find links to article

John G. (1985-07-01). "Uncertainty relation for resolution in space, spatial frequency, and orientation optimized by two-dimensional visual cortical filters"

John Daugman (723 words) [view diff] exact match in snippet view article find links to article

Daugman, John G. (1985). "Uncertainty relation for resolution in space, spatial frequency, and orientation optimized by two-dimensional visual cortical filters"

Tiger (16,498 words) [view diff] exact match in snippet view article find links to article

N. & Rumball, D. A. (1987). "Zebra stripes and tiger stripes: the spatial frequency distribution of the pattern compared to that of the background is

Walter Hoppe (524 words) [view diff] case mismatch in snippet view article find links to article

Transmission Electron Microscope as a Phase-Determining Diffractometer—From Spatial Frequency Filtering to the Three-Dimensional Structure Analysis of Ribosomes

Image fusion (1,807 words) [view diff] exact match in snippet view article find links to article

fusion PCA-based image fusion Wavelet transform image fusion Pair-wise spatial frequency matching Comparative analysis of image fusion methods demonstrates

Phase stretch transform (1,769 words) [view diff] exact match in snippet view article find links to article

Fourier transform, and u {\displaystyle u} and v {\displaystyle v} are spatial frequency variables. The function K ~ ( u , v ) {\displaystyle {\tilde {K}}(u

Peregrine soliton (1,665 words) [view diff] exact match in snippet view article find links to article

to mathematically express the Peregrine soliton according to the spatial frequency η {\displaystyle \eta } : ψ ~ ( η , τ ) = 1 2 π ∫ ψ ( ξ , τ ) e i

Transsaccadic memory (3,806 words) [view diff] exact match in snippet view article find links to article

the detection of light spot flashes during saccades. The lower the spatial frequency, meaning fewer objects in the visual field of the light flashes, the

Phase space measurement with forward modeling (842 words) [view diff] exact match in snippet view article find links to article

the brain. Phase space of light is used to delineate the space and spatial frequency of light. As light propagates or scatters it will change its phase

Papoulis-Marks-Cheung Approach (1,371 words) [view diff] exact match in snippet view article find links to article

. When x {\displaystyle x} and y {\displaystyle y} are lengths, spatial frequency has units of cycles per unit length. Prelee and Neuhoff describe the

Haplogroup C-M130 (4,910 words) [view diff] exact match in snippet view article find links to article

Projected spatial frequency distribution for haplogroup C in East Asia.

Visual crowding (2,613 words) [view diff] exact match in snippet view article find links to article

flanker group of stimulus in shape, size, orientation, polarity, spatial frequency, depth, color, motion and order, breaks crowding. Crowding happens

CT scan (16,219 words) [view diff] exact match in snippet view article find links to article

processes such as emphysema, and fibrosis, thin sections with high spatial frequency reconstructions are used; often scans are performed both on inspiration

Dryden Wind Turbulence Model (1,330 words) [view diff] exact match in snippet view article find links to article

turbulence, respectively, for the ith velocity component, and Ω is a spatial frequency. These power spectral densities give the stochastic process spatial

Justine Sergent (1,241 words) [view diff] no match in snippet view article find links to article

1.170. PMID 2522527. Sergent, J (1987). "Failures to confirm the spatial-frequency hypothesis : Fatal blow or healthy complication?". Canadian Journal

Haplogroup R1b (7,716 words) [view diff] exact match in snippet view article find links to article

Projected spatial frequency distribution within Europe of haplogroup R-M269.

Noise reduction (4,522 words) [view diff] no match in snippet view article find links to article

better make those decisions In real-world photographs, the highest spatial-frequency detail consists mostly of variations in brightness (luminance detail)

Peter L. P. Dillon (1,417 words) [view diff] exact match in snippet view article find links to article

green pixels to produce a high spatial frequency luminance signal, which is added to the three low spatial frequency color channels, as shown in the

Iris recognition (6,109 words) [view diff] exact match in snippet view article find links to article

be recorded at several different pupil diameters; analysing the 2D spatial frequency spectrum of the iris image for the peaks caused by the printer dither

Haplogroup T (mtDNA) (5,767 words) [view diff] exact match in snippet view article

Projected spatial frequency distribution for haplogroup T.

Bird vision (8,328 words) [view diff] exact match in snippet view article find links to article

viewing experiments the contrast sensitivity is highest at a medium spatial frequency and lower for higher and lower spatial frequencies. Birds can resolve

Exceptional memory (6,234 words) [view diff] exact match in snippet view article find links to article

ventral visual stream, and since graphemes and words have enhanced spatial frequency as well as contrast information, greater processing of these features

Rudolf Groner (1,738 words) [view diff] exact match in snippet view article find links to article

Groner, M. T., Groner, R., & Von Mühlenen, A. (2008). The effect of spatial frequency content on parameters of eye movements. Psychological Research, 72(6)

Time-domain holography (1,243 words) [view diff] exact match in snippet view article find links to article

paraxial diffraction in time frequency and narrow-band dispersion in spatial frequency are both delta functions. Describing the holography in time domain

Phase-contrast imaging (3,950 words) [view diff] exact match in snippet view article find links to article

absorption) and a contrast-to-noise relationship that increases with spatial frequency (because many phase-contrast techniques detect the first or second

List of algorithms (7,945 words) [view diff] exact match in snippet view article find links to article

compression Adaptive-additive algorithm (AA algorithm): find the spatial frequency phase of an observed wave source Discrete Fourier transform: determines

Interferometry (11,142 words) [view diff] case mismatch in snippet view article find links to article

"Surface Profiling by Analysis of White-light Interferograms in the Spatial Frequency Domain". Journal of Modern Optics. 42 (2): 389–401. Bibcode:1995JMOp

Time perception (10,093 words) [view diff] exact match in snippet view article find links to article

Hotchkiss J, Heron J, Whitaker D (June 2011). "Perceived time is spatial frequency dependent". Vision Research. 51 (11): 1232–8. doi:10.1016/j.visres

Haplogroup A (Y-DNA) (6,308 words) [view diff] exact match in snippet view article

Projected spatial frequency distribution of haplogroup A in Africa.

C1 and P1 (3,554 words) [view diff] exact match in snippet view article find links to article

sinusoidal gratings: Responses to quadrant stimulation as a function of spatial frequency. Electorencephalogy and Clinical Neuropsychology, 53, 427-435. Lesevre

Optical proximity correction (1,849 words) [view diff] exact match in snippet view article find links to article

from OPC than isolated features of the same size. The reason is the spatial frequency spectrum of nested features contains fewer components than isolated

Crystallographic image processing (4,105 words) [view diff] exact match in snippet view article find links to article

and limits of their removal by crystallographic averaging in the spatial frequency domain". Crystal Research and Technology. 49 (9): 663–680. Bibcode:2014CryRT

Haplogroup R1a (13,384 words) [view diff] exact match in snippet view article find links to article

Pleistocene epoch. The high variance of R1a1 in India (table 12), the spatial frequency distribution of R1a1 microsatellite variance clines (fig. 4), and

Paul Watters (1,424 words) [view diff] no match in snippet view article find links to article

visual processing, suggesting that sparseness had minimal impact on spatial-frequency and orientation tuning in simulations. The thesis thus provided a

Sonar signal processing (1,633 words) [view diff] exact match in snippet view article find links to article

{\displaystyle w} is temporal frequency and k → {\displaystyle {\vec {k}}} is spatial frequency. We often define s ( t , r → ) = e − j ( w t − k → r → ) , {\displaystyle

Halbach array (5,350 words) [view diff] exact match in snippet view article find links to article

surface of the array, k {\displaystyle k} is the wavenumber (i.e., the spatial frequency) 2 π / λ . {\displaystyle 2\pi /\lambda .} The advantages of one-sided

Eye movement in scene viewing (1,372 words) [view diff] exact match in snippet view article find links to article

during scene viewing: Immediate degradation and enhancement effects of spatial frequency filtering. Visual Cognition, 22, 486-502. Itti, L., & Koch, C. (2000)

Multidimensional seismic data processing (1,936 words) [view diff] exact match in snippet view article find links to article

{x}})}d{\underline {x}}dt} where k _ {\displaystyle {\underline {k}}} is the spatial frequency (also known as wavenumber) and ω {\displaystyle \omega } is the temporal

Optical coherence elastography (2,216 words) [view diff] exact match in snippet view article find links to article

detection could be limited due to IVUS elastography's relatively low spatial frequency (hundreds of microns). Intravascular OCE could perfectly complements

Multi-objective optimization (9,569 words) [view diff] exact match in snippet view article find links to article

frequency resources are very scarce, thus there is a need for tight spatial frequency reuse which causes immense inter-user interference if not properly

Discrete-time beamforming (1,755 words) [view diff] exact match in snippet view article find links to article

wavenumber vector k {\displaystyle \mathbf {k} } represents the 3-D spatial frequency and ω {\displaystyle \omega } represents the temporal frequency. The

Eye contact effect (1,774 words) [view diff] exact match in snippet view article find links to article

colliculus, pulvinar, and amygdala. This route is fast and operates on low spatial frequency and modulates cortical face processing. Sensitivity to eye contact

Cicindela repanda (2,326 words) [view diff] exact match in snippet view article find links to article

receptor acceptance angle per receptor integration time, images of high spatial frequency begin to lose contrast. For diurnal predators like tiger beetles,

Phase-contrast X-ray imaging (13,663 words) [view diff] exact match in snippet view article find links to article

carrier fringes because they have a much larger spacing/period (smaller spatial frequency) than the Talbot fringes and thus the phase gradient introduced by

Peter Schiller (neuroscientist) (2,278 words) [view diff] exact match in snippet view article

central role in the wavelength and spatial domains: color vision, high spatial frequency form, shape, texture perception, and fine stereopsis. In comparison

Bruce J. Tromberg (2,618 words) [view diff] exact match in snippet view article find links to article

spectroscopy (DOS) including diffuse optical spectroscopic imaging (DOSI); spatial frequency domain imaging (SFDI); and a type of optical tomography combining

Acoustic metamaterial (5,804 words) [view diff] exact match in snippet view article find links to article

low-frequency noise, since their locally resonant systems act as spatial frequency filters. However, they have narrow band gaps, impose additional weight

Watercolor illusion (2,870 words) [view diff] exact match in snippet view article find links to article

sinusoidal waves. The results showed increase of strength with increasing spatial frequency of the sinusoidal waves. The effects are the strongest with the wave

Lisa Giocomo (2,678 words) [view diff] exact match in snippet view article find links to article

frequency of subthreshold somatic oscillations results in differences in spatial frequency of grid cell fields. Giocomo further explored the differences in intrinsic

Focal molography (1,351 words) [view diff] exact match in snippet view article find links to article

binding of off-target molecules) is inversely proportional to the spatial frequency and therefore situated mostly at "long" spatial periods most of the

Amodal completion (1,898 words) [view diff] exact match in snippet view article find links to article

from the simple cells and allowing for processing of depth, colours, spatial frequency, complex patterns and object orientation. As local contours are detected

Superlens (11,288 words) [view diff] exact match in snippet view article find links to article

direction of the layered metamaterial. On a microscopic level the large spatial frequency waves propagate through coupled surface plasmon excitations between

Amodal completion (1,898 words) [view diff] exact match in snippet view article find links to article

from the simple cells and allowing for processing of depth, colours, spatial frequency, complex patterns and object orientation. As local contours are detected

Shannon Blunt (1,815 words) [view diff] no match in snippet view article find links to article

of distinct forms of dual-function radar/communications based on spatial, frequency, and coding degrees of freedom. Development of a radar sense-and-notch

Face perception (14,546 words) [view diff] exact match in snippet view article find links to article

S2CID 11147913. Awasthi B; Friedman J; Williams, MA (2011). "Processing of low spatial frequency faces at periphery in choice reaching tasks". Neuropsychologia. 49

Adriana Fiorentini (1,023 words) [view diff] exact match in snippet view article find links to article

approach has produced numerous works including “The visual cortex as a spatial frequency analyzer” and "The unresponsive regions of the visual cortical receptive

Surround suppression (2,564 words) [view diff] exact match in snippet view article find links to article

stimulation in only one eye, may drive this effect with stimuli with high spatial frequency. When the stimulus frequency is lowered, however, binocular mechanisms

Surface imperfections (optics) (2,604 words) [view diff] exact match in snippet view article

element's manufacturing. Texture is a periodical phenomenon with a high spatial frequency (or in other words, in small dimensions), which affects the entire

Haplogroup O-M122 (10,457 words) [view diff] exact match in snippet view article find links to article

Projected spatial frequency distribution for haplogroup O3-M7.

Peripheral head-mounted display (1,750 words) [view diff] exact match in snippet view article find links to article

at other layers, which especially degrades the perception of high spatial frequency information such as text. Are actually done at a specific angle of

Super-resolution photoacoustic imaging (4,140 words) [view diff] exact match in snippet view article find links to article

_{a}(r)*h(r)]} . This shows that the resolution is determined by the spatial frequency in h(r). If it is assumed that the speckle size is much smaller than

Network neuroscience (13,751 words) [view diff] exact match in snippet view article find links to article

V1 and further interpreted that data through differences in color, spatial frequency, moderately complex patterns, and object orientation before sending