aliasing
(redirected from Spatial aliasing)

Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia

0.01 sec.

aliasing /ali·as·ing/ (a´le-as-ing)

1. introduction of an artifact or error in sampling of a periodic signal when the sampling frequency is too low to capture the signal properly.

2. in pulsed Doppler ultrasonography, an artifact occurring when the velocity of the sampled object is too great for the Doppler frequency to be determined by the system.

3. an artifact occurring in magnetic resonance imaging when a part being examined is larger than the field of view; an image of the area outside the field of view appears as an artifact inside the field of view.

aliasing,

an artifact that is caused by undersampling of signal data in diagnostic imaging.

aliasing

an imaging artefact in Doppler ultrasound, governed by the Nyquist limit, in which the blood flow direction appears to be reversed. An experienced operator can readily distinguish the aliased image from the true image.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.

?Page tools

Printer friendly
Cite / link

Feedback
Add definition

Mentioned in	?		Medical browser	?		Full browser	?
No references found			spasmus spasmus nutans spastic spastic abasia spastic aphonia spastic bladder spastic colon spastic constipation spastic diplegia spastic dysarthria spastic dysphonia spastic dysuria spastic entropion spastic gait spastic hemiplegia spastic ileus spastic paralysis spastic paraplegia spastic primary paraplegia spastic pseudoparalysis spastic strabismus spasticity spat spatial spatial agnosia Spatial aliasing spatial dance spatial frequency spatial relationships spatial resolution Spatial skills spatial summation spatial zones spatium spatter spatula spatulate spatulation spatulator spavin spawn spawners spay spaying SPCA SPD SPE spear grass Spear Tackler’s Spine Spear Tackling Spearing			Spathaceous Spathal spathe spathe spathe flower Spathed Spathed spathes spathes spathic Spathic iron Spathic iron Spathiform Spathiger spathiphyllum Spathodea Spathose Spathous Spathulate Spathulate Spathulate spatial spatial spatial spatial Spatial Adaptive Processing Spatial Aggregate Fielding Evaluation Spatial Aggregation Framework Spatial Aggregation Language spatial agnosia Spatial aliasing Spatial analysis Spatial Analysis and Decision Assistance Spatial Analysis by Distance Indices Spatial Analysis Neural Network Spatial Analysis Systems Spatial Analysis Toolkit Spatial and Numeric Data Services Spatial and Numerical Modeling Laboratory Spatial and Spatio-Temporal Data Mining Spatial and Temporal Relationship Petri Net Spatial Applications Division Leuven Spatial Archaeology Research Unit spatial arrangement Spatial Arrangement of backbone Fragments Spatial Array Memory Test Spatial Array Power Combiner Spatial Audio Object Coding Spatial Auto Regressive Model spatial autocorrelation Spatial Average Temporal Peak Spatial Channel Model Extended spatial clustering spatial clustering spatial clustering Spatial Cognition spatial coherence

Medical Dictionary

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.

aliasing (redirected from Spatial aliasing)

aliasing
(redirected from Spatial aliasing)