aliasing
Staircase edge artifact
Aliasing is the distortion that occurs when a signal is sampled too slowly to capture its true form.
In digital audio, aliasing produces artifacts—spurious frequencies that weren't in the original sound.
In computer graphics, aliasing appears as jagged edges on diagonal lines or curves, the stair-step effect that anti-aliasing smooths out.
The term comes from the way high frequencies masquerade as lower ones when insufficiently sampled—they take on an alias.
Edge-smoothing rendering technique
- jaggiesPixelated edge distortion
- pixelationVisible square artifacts
- stairsteppingAscending in increments
- moireRippled textile finish
artifacts · smoothing · subpixel · rendering · rasterization · resolution · texture · anisotropic
Human-made historical objects
- distortionTwisting from original state
- harmonicsFrequencies above the fundamental
- overtonesImplicit secondary meanings
- frequencyRate of recurrence
sampling · foldover · bitrate · quantization · dithering · resampling · jitter · codec
Extracting subset for study
- frequencyRate of recurrence
- bandwidthData transmission capacity
- low-passFrequency-limiting circuit
- filteringSelective passage of elements
reconstruction · artifacts · oversampling · Shannon · waveform · spectrum · harmonics · analog
Fictitious professional name
Supernatural duplicate of oneself
- doubleTwice the amount
- lookalikeOne who closely resembles another
- impostorOne feigning another's identity
- impersonationPretending to be another
twin · counterpart · clone · replica · simulacrum · facsimile · stand-in · decoy
antialiasing
Edge-smoothing rendering technique
- jaggiesPixelated edge distortion
- pixelationVisible square artifacts
- stairsteppingAscending in increments
moire · artifacts · smoothing · subpixel · rendering · rasterization · resolution · texture · anisotropic · dithering
artifacts
Human-made historical objects
- distortionTwisting from original state
- harmonicsFrequencies above the fundamental
- overtonesImplicit secondary meanings
frequency · sampling · foldover · bitrate · quantization · dithering · resampling · jitter · codec · interference
sampling
Extracting subset for study
filtering · reconstruction · artifacts · oversampling · Shannon · waveform · spectrum · harmonics · analog · digital
pseudonym
Fictitious professional name
incognito · anonym · byname · sobriquet · cognomen · username
doppelganger
Supernatural duplicate of oneself
- doubleTwice the amount
- lookalikeOne who closely resembles another
- impostorOne feigning another's identity
impersonation · twin · counterpart · clone · replica · simulacrum · facsimile · stand-in · decoy · ringer
- hard to readblurry text, illegible, faded print, blurred, smudged
- data privacydata privacy, GDPR, personal data, data protection, de-identification
- audio flawswrong note, missed note, clipping, distortion, hum
- compressioncompress, compression, compressor, compressing, compact
- digital graphicspixel, vector, pixel art, bitmap, raster
- digital imagingpixel, pixels, resolution, JPEG, bitmap
aliasinganti-aliasing
Digital edge-smoothing technique
smoothing · oversampling · supersampling · multisampling · smooth edges