Factors in Preserving Video Quality in Post-Production when Cascading Compressed Video Systems

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE J
Volume: 106, No. 2, pp. 95–102
Abstract: Post-production equipment increasingly uses video compression to achieve economies of storage and bandwidth. Users of compressed video systems need to be aware of the factors that determine video quality. As compression technology becomes more widespread, the cascading of multiple compression systems increases. The compression techniques that are optimal for transmission and distribution of video are not the same as those optimal for post-production. This paper defines the important factors that determine video quality in compression systems. It describes the differing requirements placed on compression by post-production and distribution and concludes by examining results from three cascaded compression experiments using JPEG and MPEG-2.
Publication Date: 1997-02-01
DOI: 10.5594/J15808
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J15808
Author(s): Katie CornogAvid Technology. Inc., Tewksbury. MA018776
bio
Katherine (Katie) Cornog is principal engineer, Avid Technology, in Tewksbury, Mass., where she has developed and optimized compression technology for nonlinear editing products. A member of Avid's Advanced Development Group for 3 years, she has 12 years of industry experience in image processing, video compression, and machine vision. Cornog holds a B.Sc. in engineering from Brown University and an M.S.E.E. degree from M.I.T. She is a member of SMPTE and MPEG and has served on several SMPTE Working Groups, including those on Switching and Synchronization, Packetized Television Interconnect, and Television Compression Systems. In addition, she has presented several papers on compression technology at SMPTE national and regional meetings.
Copyright: © 1997 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1. ISO/IEC JTC1/ SC29/ WG11 N0905, Proposed Draft Amendment to ISO/IEC 13818–2 “4:2:2 Profile,” Mar. 24, 1995 . EXTERNAL
2. ISO/IEC JTC1/ SC29/ WG11 N0858. “4:2:2 MPEG-2 Profile Proposal: Programme of Work,” Nov. 11, 1994 . EXTERNAL
3. ISO/IEC JTC1/ SC29/ WG11 N0936, “Report on 4:2:2 Profile Simulations,” Mar. 24, 1995 . EXTERNAL

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Katie Cornog; Factors in Preserving Video Quality in Post-Production when Cascading Compressed Video Systems, SMPTE Journal ( Volume: 106, Issue: 2, February 1997); SMPTE, 1997. Available at https://doi.org/10.5594/J15808

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Katie Cornog; Factors in Preserving Video Quality in Post-Production when Cascading Compressed Video Systems, SMPTE Journal ( Volume: 106, Issue: 2, February 1997); SMPTE, 1997. Available at https://doi.org/10.5594/J15808

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<span class="citation">Katie Cornog; <cite>Factors in Preserving Video Quality in Post-Production when Cascading Compressed Video Systems</cite>, SMPTE Journal ( Volume: 106, Issue: 2, February 1997); SMPTE, 1997. Available at <a href="https://doi.org/10.5594/J15808" target="_blank" rel="noopener">https://doi.org/10.5594/J15808</a></span>

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Katie Cornog; <cite id="bib-10-5594-j15808">Factors in Preserving Video Quality in Post-Production when Cascading Compressed Video Systems</cite>, SMPTE Journal ( Volume: 106, Issue: 2, February 1997); SMPTE, 1997
<span class="doi">10.5594/J15808</span>
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