@prefix dbo: . @prefix dbr: . dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . @prefix foaf: . @prefix wikipedia-en: . wikipedia-en:Contrast-to-noise_ratio foaf:primaryTopic dbr:Contrast-to-noise_ratio . dbr:Signal-to-noise_ratio dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . dbr:Cone_beam_computed_tomography dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . dbr:CNR dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio ; dbo:wikiPageDisambiguates dbr:Contrast-to-noise_ratio . dbr:Photon-counting_mammography dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . @prefix rdfs: . dbr:Contrast-to-noise_ratio rdfs:label "Contrast-to-noise ratio"@en ; rdfs:comment "Contrast-to-noise ratio (CNR) is a measure used to determine image quality. CNR is similar to the metric signal-to-noise ratio (SNR), but subtracts a term before taking the ratio. This is important when there is a significant bias in an image, such as from haze. As can be seen in the picture at right, the intensity is rather high even though the features of the image are washed out by the haze. Thus this image may have a high SNR metric, but will have a low CNR metric. One way to define contrast-to-noise ratio is:"@en ; foaf:depiction . @prefix dct: . @prefix dbc: . dbr:Contrast-to-noise_ratio dct:subject dbc:Image_processing ; dbo:abstract "Contrast-to-noise ratio (CNR) is a measure used to determine image quality. CNR is similar to the metric signal-to-noise ratio (SNR), but subtracts a term before taking the ratio. This is important when there is a significant bias in an image, such as from haze. As can be seen in the picture at right, the intensity is rather high even though the features of the image are washed out by the haze. Thus this image may have a high SNR metric, but will have a low CNR metric. One way to define contrast-to-noise ratio is: where SA and SB are signal intensities for signal producing structures A and B in the region of interest and \u03C3o is the standard deviation of the pure image noise."@en ; dbo:wikiPageWikiLink dbr:Image_noise , , , dbr:Standard_deviation , dbr:Contrast_resolution , dbc:Image_processing . @prefix dbp: . @prefix dbt: . dbr:Contrast-to-noise_ratio dbp:wikiPageUsesTemplate dbt:Refimprove , dbt:Reflist , dbt:Noise ; dbo:thumbnail ; dbo:wikiPageRevisionID 1040669742 . @prefix xsd: . dbr:Contrast-to-noise_ratio dbo:wikiPageLength "2265"^^xsd:nonNegativeInteger ; dbo:wikiPageID 21931386 . @prefix owl: . dbr:Contrast-to-noise_ratio owl:sameAs dbr:Contrast-to-noise_ratio , . @prefix wikidata: . dbr:Contrast-to-noise_ratio owl:sameAs wikidata:Q5165749 , . @prefix prov: . dbr:Contrast-to-noise_ratio prov:wasDerivedFrom ; foaf:isPrimaryTopicOf wikipedia-en:Contrast-to-noise_ratio . dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . dbr:X-ray_optics dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . dbr:Contrast_resolution dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio . dbr:Contrast_to_Noise_Ratio dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio ; dbo:wikiPageRedirects dbr:Contrast-to-noise_ratio . dbr:Contrast_to_noise_ratio dbo:wikiPageWikiLink dbr:Contrast-to-noise_ratio ; dbo:wikiPageRedirects dbr:Contrast-to-noise_ratio .
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