Visual artifact

Visual artifact

Visual artifacts are anomalies during visual representation of e.g. digital graphics and imagery.

Examples in digital graphics

A screenshot of a Microsoft Windows XP application displaying a visual artifact. This was fixed in the next release, Windows Vista.

In microscopy

In microscopy, an artifact is an apparent structural detail that is caused by the processing of the specimen and is thus not a legitimate feature of the specimen.

For example, a crush artifact is artificial elongation and distortion when smearing cells or tissue for microscopy.[1]

References

A retinography. The gray spot in the center is a shadow artifact.
  1. ^ Komanduri S, Swanson G, Keefer L, Jakate S (December 2009). "Use of a new jumbo forceps improves tissue acquisition of Barrett's esophagus surveillance biopsies". Gastrointest. Endosc. 70 (6): 1072–8.e1. doi:10.1016/j.gie.2009.04.009. PMID 19595312. 



Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Artifact (error) — Diffraction spikes are lens flare artifacts In natural science and signal processing, an artifact is any error in the perception or representation of any visual or aural information introduced by the involved equipment or technique(s) …   Wikipedia

  • artifact —    An object produced or shaped by human craft, especially a rudimentary art form or object, as in the products of prehistoric workmanship. Only in the last ten or twenty years works of various native peoples been considered art rather than… …   Glossary of Art Terms

  • Artifact — PP Undesired data in an image as a result of digital processing. See also noise. WikiV A defect or distortion of the video image, introduced along the sequence from origination and image capture to final display. Artifacts may arise from the… …   Audio and video glossary

  • Virtual artifact — A virtual artifact (VA) is an immaterial object that exists in the human mind or in a digital environment, for example the Internet, intranet, virtual reality, cyberspace, etc. [Masaki Omata, Kentaro Go, Atsumi Imamiya. A Gesture Based Interface… …   Wikipedia

  • Compression artifact — Original image, with good color grade Loss of edge clarity and tone fuzziness in heavy JPEG compression A compression ar …   Wikipedia

  • Digital artifact — A complicated grid pattern is insufficiently processed by a smartphone camera. An electronic billboar …   Wikipedia

  • Motion artifact — PP Visual interference caused by the difference between the frame rate of the camera and the motion of the object. The most common display of this is when filming a computer or television screen. The screen will flicker or a line will scan down… …   Audio and video glossary

  • LASIK — or Lasik ( laser assisted in situ keratomileusis ) is a type of refractive laser eye surgery performed by ophthalmologists for correcting myopia, hyperopia, and astigmatism. [ [http://www.intelihealth.com/IH/ihtIH/WSS/9339/32123.html LASIK. ]… …   Wikipedia

  • Screen-door effect — The screen door effect or fixed pattern noise (FPN) is a visual artifact of the projection technology used in digital projectors, where the fine lines separating the projector s pixels become visible in the projected image. This results in an… …   Wikipedia

  • Daniel Lorenzetti — speaking about The Birth of Coffee in Austin, Texas in 2010 Daniel Lorenzetti, born in Fort Lauderdale, Florida, is an American writer, documentary photographer and explorer. He is also a frequent speaker on the subject of entertainment… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”