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Oliver Grau, and Jim Easterbrook, Effects of camera aperture correction on keying and compositing of broadcast video. JVRB - Journal of Virtual Reality and Broadcasting, 7(2010), no. 9. (urn:nbn:de:0009-6-26693)
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%0 Journal Article %T Effects of camera aperture correction on keying and compositing of broadcast video %A Grau, Oliver %A Easterbrook, Jim %J JVRB - Journal of Virtual Reality and Broadcasting %D 2010 %V 7(2010) %N 9 %@ 1860-2037 %F grau2010 %X This contribution discusses the effects of camera aperturecorrection in broadcast video on colour-based keying. Theaperture correction is used to ’sharpen’ an image and is oneelement that distinguishes the ’TV-look’ from ’film-look’. ’If avery high level of sharpening is applied, as is the case in manyTV productions then this significantly shifts the colours aroundobject boundaries with hight contrast. This paper discussesthese effects and their impact on keying and describes a simplelow-pass filter to compensate for them. Tests with colour-basedsegmentation algorithms show that the proposed compensationis an effective way of decreasing the keying artefacts on objectboundaries. %L 004 %K Image processing %K colour-based segmentation %K keying %K matting %R 10.20385/1860-2037/7.2010.9 %U http://nbn-resolving.de/urn:nbn:de:0009-6-26693 %U http://dx.doi.org/10.20385/1860-2037/7.2010.9Download
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@Article{grau2010, author = "Grau, Oliver and Easterbrook, Jim", title = "Effects of camera aperture correction on keying and compositing of broadcast video", journal = "JVRB - Journal of Virtual Reality and Broadcasting", year = "2010", volume = "7(2010)", number = "9", keywords = "Image processing; colour-based segmentation; keying; matting", abstract = "This contribution discusses the effects of camera aperturecorrection in broadcast video on colour-based keying. Theaperture correction is used to 'sharpen' an image and is oneelement that distinguishes the 'TV-look' from 'film-look'. 'If avery high level of sharpening is applied, as is the case in manyTV productions then this significantly shifts the colours aroundobject boundaries with hight contrast. This paper discussesthese effects and their impact on keying and describes a simplelow-pass filter to compensate for them. Tests with colour-basedsegmentation algorithms show that the proposed compensationis an effective way of decreasing the keying artefacts on objectboundaries.", issn = "1860-2037", doi = "10.20385/1860-2037/7.2010.9", url = "http://nbn-resolving.de/urn:nbn:de:0009-6-26693" }Download
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TY - JOUR AU - Grau, Oliver AU - Easterbrook, Jim PY - 2010 DA - 2010// TI - Effects of camera aperture correction on keying and compositing of broadcast video JO - JVRB - Journal of Virtual Reality and Broadcasting VL - 7(2010) IS - 9 KW - Image processing KW - colour-based segmentation KW - keying KW - matting AB - This contribution discusses the effects of camera aperturecorrection in broadcast video on colour-based keying. Theaperture correction is used to ’sharpen’ an image and is oneelement that distinguishes the ’TV-look’ from ’film-look’. ’If avery high level of sharpening is applied, as is the case in manyTV productions then this significantly shifts the colours aroundobject boundaries with hight contrast. This paper discussesthese effects and their impact on keying and describes a simplelow-pass filter to compensate for them. Tests with colour-basedsegmentation algorithms show that the proposed compensationis an effective way of decreasing the keying artefacts on objectboundaries. SN - 1860-2037 UR - http://nbn-resolving.de/urn:nbn:de:0009-6-26693 DO - 10.20385/1860-2037/7.2010.9 ID - grau2010 ER -Download
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PT Journal AU Grau, O Easterbrook, J TI Effects of camera aperture correction on keying and compositing of broadcast video SO JVRB - Journal of Virtual Reality and Broadcasting PY 2010 VL 7(2010) IS 9 DI 10.20385/1860-2037/7.2010.9 DE Image processing; colour-based segmentation; keying; matting AB This contribution discusses the effects of camera aperturecorrection in broadcast video on colour-based keying. Theaperture correction is used to ’sharpen’ an image and is oneelement that distinguishes the ’TV-look’ from ’film-look’. ’If avery high level of sharpening is applied, as is the case in manyTV productions then this significantly shifts the colours aroundobject boundaries with hight contrast. This paper discussesthese effects and their impact on keying and describes a simplelow-pass filter to compensate for them. Tests with colour-basedsegmentation algorithms show that the proposed compensationis an effective way of decreasing the keying artefacts on objectboundaries. ERDownload
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<mods> <titleInfo> <title>Effects of camera aperture correction on keying and compositing of broadcast video</title> </titleInfo> <name type="personal"> <namePart type="family">Grau</namePart> <namePart type="given">Oliver</namePart> </name> <name type="personal"> <namePart type="family">Easterbrook</namePart> <namePart type="given">Jim</namePart> </name> <abstract>This contribution discusses the effects of camera aperture correction in broadcast video on colour-based keying. The aperture correction is used to ’sharpen’ an image and is one element that distinguishes the ’TV-look’ from ’film-look’. ’If a very high level of sharpening is applied, as is the case in many TV productions then this significantly shifts the colours around object boundaries with hight contrast. This paper discusses these effects and their impact on keying and describes a simple low-pass filter to compensate for them. Tests with colour-based segmentation algorithms show that the proposed compensation is an effective way of decreasing the keying artefacts on object boundaries.</abstract> <subject> <topic>Image processing</topic> <topic>colour-based segmentation</topic> <topic>keying</topic> <topic>matting</topic> </subject> <classification authority="ddc">004</classification> <relatedItem type="host"> <genre authority="marcgt">periodical</genre> <genre>academic journal</genre> <titleInfo> <title>JVRB - Journal of Virtual Reality and Broadcasting</title> </titleInfo> <part> <detail type="volume"> <number>7(2010)</number> </detail> <detail type="issue"> <number>9</number> </detail> <date>2010</date> </part> </relatedItem> <identifier type="issn">1860-2037</identifier> <identifier type="urn">urn:nbn:de:0009-6-26693</identifier> <identifier type="doi">10.20385/1860-2037/7.2010.9</identifier> <identifier type="uri">http://nbn-resolving.de/urn:nbn:de:0009-6-26693</identifier> <identifier type="citekey">grau2010</identifier> </mods>Download
Full Metadata
Bibliographic Citation | JVRB, 7(2010), no. 9. |
---|---|
Title |
Effects of camera aperture correction on keying and compositing of broadcast video (eng) |
Author | Oliver Grau, Jim Easterbrook |
Language | eng |
Abstract | This contribution discusses the effects of camera aperture correction in broadcast video on colour-based keying. The aperture correction is used to ’sharpen’ an image and is one element that distinguishes the ’TV-look’ from ’film-look’. ’If a very high level of sharpening is applied, as is the case in many TV productions then this significantly shifts the colours around object boundaries with hight contrast. This paper discusses these effects and their impact on keying and describes a simple low-pass filter to compensate for them. Tests with colour-based segmentation algorithms show that the proposed compensation is an effective way of decreasing the keying artefacts on object boundaries. |
Subject | Image processing, colour-based segmentation, keying, matting |
Classified Subjects |
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DDC | 004 |
Rights | DPPL |
URN: | urn:nbn:de:0009-6-26693 |
DOI | https://doi.org/10.20385/1860-2037/7.2010.9 |