A Digital Telecine Processing Channel

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Digital processing of signals has advantages of improved stability, accuracy, and reliability. There are two problems that might arise in a digital processing channel. One is that gamma correction increases the visibility of contouring due to quantizing in dark areas of the picture so that more than the usual eight bits per sample are needed. The other is that nonlinear processing in gamma correctors and clippers may give rise to beats causing coarse moire patterns on the output picture. A digital telecine processing channel was built to examine these problems. It incorporates a range-changing analog-to-digital converter which gives improved coding resolution for low level signals. The channel performs the operations of gamma correction, color masking, and aperture correction. A subjective test has shown that ten bits per sample are needed in the green channel when signals are digitally coded before gamma correction. The generation of moire patterns due to nonlinear processing has been shown not to be significant in practice.
Publication Date: 1979-07-01
DOI: 10.5594/J06638
Link: https://doi.org/10.5594/J06638
Author(s): Andrew Oliphant, Martin Weston

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J06638.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Andrew Oliphant and Martin Weston; A Digital Telecine Processing Channel, SMPTE Journal ( Volume: 88, Issue: 7, July 1979); SMPTE, 1979. Available at https://doi.org/10.5594/J06638

Snippet:

Andrew Oliphant and Martin Weston; A Digital Telecine Processing Channel, SMPTE Journal ( Volume: 88, Issue: 7, July 1979); SMPTE, 1979. Available at https://doi.org/10.5594/J06638

HTML (ISO 690 compliant)

Preview:

Andrew Oliphant and Martin Weston; A Digital Telecine Processing Channel, SMPTE Journal ( Volume: 88, Issue: 7, July 1979); SMPTE, 1979. Available at https://doi.org/10.5594/J06638

Snippet:

<span class="citation">Andrew Oliphant and Martin Weston; <cite>A Digital Telecine Processing Channel</cite>, SMPTE Journal ( Volume: 88, Issue: 7, July 1979); SMPTE, 1979. Available at <a href="https://doi.org/10.5594/J06638" target="_blank" rel="noopener">https://doi.org/10.5594/J06638</a></span>

SMPTE's HTML Pub

Preview:

Andrew Oliphant and Martin Weston; A Digital Telecine Processing Channel, SMPTE Journal ( Volume: 88, Issue: 7, July 1979); SMPTE, 1979
doi: 10.5594/J06638
url: https://doi.org/10.5594/J06638

Snippet:

<li>
Andrew Oliphant and Martin Weston; <cite id="bib-10-5594-j06638">A Digital Telecine Processing Channel</cite>, SMPTE Journal ( Volume: 88, Issue: 7, July 1979); SMPTE, 1979
<span class="doi">10.5594/J06638</span>
</li>