| aliasing |
1. The introduction of error in the Fourier analysis of a discrete sampling from continuous data, by which frequencies too high to be analyzed with the discrete sampling interval erroneously contribute to the amplitude of the lower frequencies. Aliasing can be avoided by filtering out the high frequencies (using slower-response instruments or analog electronic circuits) before sampling or digitizing. See also Nyquist frequency. 2. ...
출처: amsglossary.allenpress.com/glossary/browse
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| aliasing |
Condition when graphics, either constructed with lines (vectored) or dots (bitmapped), show jagged edges under magnification.
출처: www.rockprint.com/dictionary.shtml
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| aliasing |
A distortion (artifact) in the reproduction of digital audio or video that results when the signal frequency is more than twice the sampling frequency. The resolution is insufficient to distinguish between alternate reconstructions of the waveform, thus admitting additional noise that was not present in the original signal.
출처: www.dvd-makers.com/public/486.cfm
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| aliasing |
This is an effect caused by sampling an image at to low a rate. It causes rapid change (high texture) areas of an image to appear as a slow change in the sample image. Once this has happened, it is extremely difficult to reproduce the original image from the sample.
출처: www.all-things-photography.com/digital-dictionary....
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| aliasing |
Defects or distortion in a television picture or audio. Defects are typically seen as jagged edges on diagonal lines and twinkling or brightening. In digital video, aliasing is caused by insufficient sampling or poor filtering of the digital video.
출처: www.wgcu.org/watch/hdtv_glossaryofterms.html
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