Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015159637> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W2015159637 abstract "One of the main limitations of the ubiquitous JPEG standard is the fact that visible artifacts can often appear in the decompressed image at moderate to high compression ratios. This is especially true for parts of the image containing graphics, text, or some other such synthesized component. Artifacts are also common in smooth regions and in image blocks containing a single dominant edge. One approach to deal with this problem is to change the 'coarseness' of quantization as a function of image characteristics in the block being compressed. The latest extension of the JPEG standard, called JPEG Part-3, provides the necessary syntax for supporting this process by means of scale factors that can be used to uniformly vary the quantization step sizes on a block by block basis. However, the standard does not recommend any specific technique or algorithm for determining scale factors. This paper proposes a simple algorithm for computing scale factors for the quantization tables used in the JPEG compression standard. The algorithm classifies each image block according to its activity and type which index into look-up tables that provide the scale factor to be used for the block. The look-up tables are designed experimentally to yield perceptually lossless compression for the target device under consideration." @default.
- W2015159637 created "2016-06-24" @default.
- W2015159637 creator A5006172625 @default.
- W2015159637 creator A5088798269 @default.
- W2015159637 date "2000-04-19" @default.
- W2015159637 modified "2023-09-23" @default.
- W2015159637 title "<title>Method for variable quantization in JPEG for improved perceptual quality</title>" @default.
- W2015159637 doi "https://doi.org/10.1117/12.382970" @default.
- W2015159637 hasPublicationYear "2000" @default.
- W2015159637 type Work @default.
- W2015159637 sameAs 2015159637 @default.
- W2015159637 citedByCount "2" @default.
- W2015159637 countsByYear W20151596372016 @default.
- W2015159637 crossrefType "proceedings-article" @default.
- W2015159637 hasAuthorship W2015159637A5006172625 @default.
- W2015159637 hasAuthorship W2015159637A5088798269 @default.
- W2015159637 hasConcept C11413529 @default.
- W2015159637 hasConcept C115961682 @default.
- W2015159637 hasConcept C13481523 @default.
- W2015159637 hasConcept C154945302 @default.
- W2015159637 hasConcept C198751489 @default.
- W2015159637 hasConcept C28855332 @default.
- W2015159637 hasConcept C31972630 @default.
- W2015159637 hasConcept C41008148 @default.
- W2015159637 hasConcept C69216139 @default.
- W2015159637 hasConcept C78548338 @default.
- W2015159637 hasConcept C81081738 @default.
- W2015159637 hasConcept C82804729 @default.
- W2015159637 hasConcept C8384606 @default.
- W2015159637 hasConcept C9417928 @default.
- W2015159637 hasConceptScore W2015159637C11413529 @default.
- W2015159637 hasConceptScore W2015159637C115961682 @default.
- W2015159637 hasConceptScore W2015159637C13481523 @default.
- W2015159637 hasConceptScore W2015159637C154945302 @default.
- W2015159637 hasConceptScore W2015159637C198751489 @default.
- W2015159637 hasConceptScore W2015159637C28855332 @default.
- W2015159637 hasConceptScore W2015159637C31972630 @default.
- W2015159637 hasConceptScore W2015159637C41008148 @default.
- W2015159637 hasConceptScore W2015159637C69216139 @default.
- W2015159637 hasConceptScore W2015159637C78548338 @default.
- W2015159637 hasConceptScore W2015159637C81081738 @default.
- W2015159637 hasConceptScore W2015159637C82804729 @default.
- W2015159637 hasConceptScore W2015159637C8384606 @default.
- W2015159637 hasConceptScore W2015159637C9417928 @default.
- W2015159637 hasLocation W20151596371 @default.
- W2015159637 hasOpenAccess W2015159637 @default.
- W2015159637 hasPrimaryLocation W20151596371 @default.
- W2015159637 hasRelatedWork W1973018338 @default.
- W2015159637 hasRelatedWork W1984464521 @default.
- W2015159637 hasRelatedWork W2022517628 @default.
- W2015159637 hasRelatedWork W2097381298 @default.
- W2015159637 hasRelatedWork W2186976868 @default.
- W2015159637 hasRelatedWork W2311654837 @default.
- W2015159637 hasRelatedWork W2525577925 @default.
- W2015159637 hasRelatedWork W2604842155 @default.
- W2015159637 hasRelatedWork W2612146525 @default.
- W2015159637 hasRelatedWork W2739773265 @default.
- W2015159637 hasRelatedWork W2781883162 @default.
- W2015159637 hasRelatedWork W2964816386 @default.
- W2015159637 hasRelatedWork W3048798690 @default.
- W2015159637 hasRelatedWork W3082499749 @default.
- W2015159637 hasRelatedWork W3119321324 @default.
- W2015159637 hasRelatedWork W3121733023 @default.
- W2015159637 hasRelatedWork W2186596446 @default.
- W2015159637 hasRelatedWork W2207596319 @default.
- W2015159637 hasRelatedWork W2274913879 @default.
- W2015159637 hasRelatedWork W3182626279 @default.
- W2015159637 isParatext "false" @default.
- W2015159637 isRetracted "false" @default.
- W2015159637 magId "2015159637" @default.
- W2015159637 workType "article" @default.