aliasing

[ey-lee-uh-sing] /ˈeɪ li ə sɪŋ/
noun
1.
a jagged, stairstep effect on curved or diagonal lines that are reproduced in low resolution, as on a computer printout or display.
Also called jaggies.
Compare antialiasing
Examples from the web for aliasing
  • Where film's diagonal lines sometimes appear jagged on plasma, this set runs a special anti-aliasing algorithm to fix the problem.
  • Velocity aliasing is a particularly difficult problem that generally requires human intervention to do nearly perfectly.
  • aliasing is a seen when a thin straight line is slightly tilted with respect to the array of pixels.
  • aliasing of data causes the introduction of a false signal that is not contained in the original data.
  • Because small features can have anomalies as big or bigger than larger deeper features the potential for aliasing is great.
British Dictionary definitions for aliasing

aliasing

/ˈeɪlɪəsɪŋ/
noun
1.
(radio, television) the error in a vision or sound signal arising from limitations in the system that generates or processes the signal
aliasing in Science
aliasing
  (ā'lē-ə-sĭng)   
  1. Jagged distortions in curves and diagonal lines in computer graphics caused by limited or diminished screen resolution. Compare antialiasing.

  2. Distortion in a reproduced sound wave caused by a low sampling rate during the recording of the sound signal as digital information.


aliasing in Technology

1. When several different identifiers refer to the same object. The term is very general and is used in many contexts.
See alias, aliasing bug, anti-aliasing.
2. (Or "shadowing") Where a hardware device responds at multiple addresses because it only decodes a subset of the address lines, so different values on the other lines are ignored.
(1998-03-13)