Compression artifact (4573 bytes)
1: ...ly the result of [[quantization]] in [[lossy data compression]]. Where [[transform coding]] is used, they are t...
3: Compression artifacts occur in many common media such as DVDs and also...
5: ...s, and .WAV files, do not suffer from compression artifacts.
7: == Compression artifacts in picture coding ==
11: ...n pictures is used, as in [[MPEG-1]], compression artifacts tend to remain on several generations of decompr...

Artifact (524 bytes)
3: An '''artifact''' (also '''artefact''') is a term coined by Sir ...
5: * an '''[[artifact (archaeology)|artifact]]''' in [[archaeology]]
6: * an '''[[artifact (observational)|artifact]]''' of [[observation]]
7: * an '''[[artifact (fantasy)|artifact]]''' of [[fantasy]]
8: ...ession artifact]]''', resulting from [[lossy data compression]]

Artifact (fantasy) (1270 bytes)
1: ...leplaying. For other definitions, see [[Artifact|Artifact (disambiguation)]].''
3: ...[trading card game]] [[Magic: The Gathering]], an artifact is a type of card representing a magical item.
5: ...lished by beings of great magical power (cf. many artifacts in [[H. P. Lovecraft | Lovecraft]]'s [[Cthulhu m...

Artifact (observational) (1316 bytes)
1: ...n science. For other definitions, see [[Artifact|Artifact (disambiguation)]].''
3: ...atural science]] and [[signal processing]], an '''artifact''' is any perceived [[distortion]] or other [[dat...
5: ...y [[lossy data compression]]. In [[microscopy]], artifacts are sometimes introduced during the processing o...
7: ...e over $50,000. This prediction is a statistical artifact, since it is spurious to use the [[model]] when t...

Artifact (archaeology) (2269 bytes)
1: ...rtefacts). For other definitions, see [[Artifact|Artifact (disambiguation)]].''
3: In [[archaeology]], an '''artifact''' or '''artefact''' is any object made by a huma...
5: ...al [[museum]]s are often criticised for being too artifact-led, that is by displaying items without any cont...
7: Artifacts can come from a number of sources:
13: Artifacts are distinguished from [[feature (archaeology)|f...

Dragon Ball (artifact) (1914 bytes)
1: A '''Dragon Ball''' is a [[fictional]] artifact from the [[manga]] and [[anime]] [[Dragon Ball]]/...

Compression (325 bytes)
1: There are several types of '''compression''':
3: *[[physical compression]]
4: *[[data compression]]
5: **[[multimedia compression]]
6: **[[image compression]]

Volume (compression) (649 bytes)
1: A '''volume''' is a term in [[data compression]] for a file who has been compressed and split in...
3: ...affected instead of the whole. Second, it allows compression to a volume size compatible with removable media....
7: === Compression utilities with volume support ===

Compression lift (1256 bytes)
1: In [[aerodynamics]], '''compression lift''' refers to an [[aircraft]] that uses [[sho...
3: The basic concept of compression lift is not uncommon, "planing" boats reduce drag...
5: ... are debatable though. Designs dedicated to using compression lift, [[waverider]]s, remain an interesting possi...

Compression body (718 bytes)
1: In the theory of [[3-manifold]]s, a '''compression body''' is a kind of generalized [[handlebody]]. ...
3: ... to <math>interior(S) \times 1</math>. This is a compression body; let's denote it by <math>C</math>. Dually,...
7: Compression bodies often arise when manipulating [[Heegaard s...

Physical compression (756 bytes)
1: '''Compression''' in [[material science]], [[physics]] or [[stru...
3: Compression is the result of the subjection of a material to ...
5: ...g/publications/baas/v30n2/aas192/abs/S043014.html compression] of [[neutron star]]s.
7: In [[laboratory|laboratories]], compression of materials is achieved by the use of press mach...

Fractal compression (2720 bytes)
1: ...ompression''' is a [[lossy data compression|lossy compression]] method used to compress images using [[fractal|...
2: ...ed for photographs of natural scenes. The fractal compression technique relies on the fact that in certain imag...
5: ...chnology. The most widely known practical fractal compression algorithm was invented by [[Arnaud Jacquin]] in 1...
7: ...pression ratio may have been an illusion. Fractal compression only has a large advantage over JPEG at low image...
9: ... In practice, to achieve high image quality with compression ratios that significantly exceed those of JPEG re...

Multimedia compression (1425 bytes)
1: ... general term referring to the [[data compression|compression]] of any type of [[multimedia]], most notably gra...
3: ...rge amounts of random noise, traditional lossless compression algorithms tend to do a poor job compressing mult...
4: ...known as [[codec|codecs]], work in a [[lossy data compression|lossy]] fashion:
10: ...media compression has become the primary focus of compression research, primarily in a search for more efficien...
14: * [[Video compression]]

Compression fitting (509 bytes)
1: Compression fittings are used in [[Plumbing]] to join two pip...
3: Compression fittings work by the application of force to the ...
9: ...iydata.com/techniques/plumbing/joints/compression/compression.htm

Signal compression (1577 bytes)
1: ...This should probably be merged with [[Audio level compression]] or [[Companding]]''
3: In [[telecommunication]], the term '''signal compression''' has the following meanings:
7: Signal compression is usually expressed in [[Bel|dB]].
11: Signal compression is usually accomplished by separate devices calle...
13: [[Signal]] compression (in dB) may be a linear or nonlinear function of ...

Bandwidth compression (620 bytes)
1: In [[telecommunication]], the term '''bandwidth compression''' has the following meanings:
5: ''Note:'' Bandwidth compression implies a reduction in normal bandwidth of an [[i...
6: This can be accomplished with [[data compression]] techniques.

Data compression (8017 bytes)
1: ...that the word "compression" is encoded as "CP!". Compression only works when both the [[sender]] and [[receive...
5: ...ata in order to achieve higher compression (lossy compression).
8: ...of the run. This is an example of [[lossless data compression]]. It is often used to better use disk space on ...
10: ...ality data with less compression. In particular, compression of images and sounds can take advantage of limita...
12: ...n is therefore lossy compression. Different audio compression standards are listed under [[audio codecs]]. Thi...

Compression ratio (2339 bytes)
1: The '''compression ratio''' is a single number that can be used to p...
3: To calculate the compression ratio;<br>
14: == Saab Variable Compression engine ==
15: ...on chamber volume are almost always constant, the compression ratio for a given engine is almost always constan...
17: ...sub>), which, via the above equation, changes the compression ratio (CR).

Image compression (3301 bytes)
1: ...Image compression''' is the application of [[data compression]] on [[digital image]]s. In effect, the objective...
3: ... can be [[lossy compression|lossy]] or [[lossless compression|lossless]].
4: Lossless compression is preferred for artificial images such as techni...
5: ...mpression methods usually introduce [[compression artifact]]s near sharp edges.
8: Methods for lossless image compression are:

S3 Texture Compression (5138 bytes)
1: ...puter graphics accelerator. Unlike previous image compression algorithms, S3TC's fast random access to individu...
3: ...pression artifacts|artifacts]]. [[ATI]]'s [[3Dc]] compression algorithm is a modification of DXT5 designed to o...
5: ...press images, allowing implementors to design the compression algorithm to suit their specific needs.
37: ...3tcfxt1/ Comparison between S3TC and FXT1 texture compression]

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