aliasing


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Related to aliasing: Anti aliasing

aliasing

A phenomenon that occurs when digitising less than two samples per period in a periodic function, where the anatomy being imaged by magnetic resonance extends beyond the field of view (FOV). Areas extending beyond the FOV boundaries are aliased back into the image to appear at artefactual locations.

ali·as·ing

(āl'ē-ăs-ing)
Magnetic resonance imaging artifact produced when anatomy outside the field of view is mismapped inside it.
References in periodicals archive ?
The effect of a pointer assignment statement, s, on aliasing can be described in terms of its alias transfer function ([TF.sub.s]).
By using the framework of pointer-induced aliasing, it is also more precise than Weihl's [1980] method, which performs a transitive closure of the alias relations.
Zhang et a1.[1996; 1998] investigate the effectiveness of a program decomposition technique for pointer aliasing of well-typed C programs.
On determining lifetime and aliasing of dynamically allocated data in higher-order functional specifications.