Digital and Analog Enhancement Techniques

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Digital and analog units for enhancing video signals and images are often regarded as competing with each other. There is no point in setting them up as adversaries, but the criteria for selecting one approach over the other should be understood. Analog enhancement is to be preferred when the required signal processing is simple and straightforward and when cost is a primary constraint. Even the simplest digital enhancement systems, however, cost as much as moderately expensive analog systems, so their use is generally reserved for complicated operations, such as those requiring long delay times, where analog systems do not perform well. It is recognized that this situation is changing as analog technology develops (CCDs and diode arrays, for example) and as digital components get cheaper. Stand-alone systems will be more expensive than those included in other devices whether they are analog or digital. Finally, when all the constraints are taken into account (particularly the required performance characteristics and money available), it can be decided whether the proper approach is analog, digital or hybrid.
Publication Date: 1978-01-01
DOI: 10.5594/J17458
Link: https://doi.org/10.5594/J17458
Author(s): Yves Faroudja, Al Swain

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Yves Faroudja and Al Swain; Digital and Analog Enhancement Techniques, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at https://doi.org/10.5594/J17458

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Yves Faroudja and Al Swain; Digital and Analog Enhancement Techniques, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at https://doi.org/10.5594/J17458

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Yves Faroudja and Al Swain; Digital and Analog Enhancement Techniques, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at https://doi.org/10.5594/J17458

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<span class="citation">Yves Faroudja and Al Swain; <cite>Digital and Analog Enhancement Techniques</cite>, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at <a href="https://doi.org/10.5594/J17458" target="_blank" rel="noopener">https://doi.org/10.5594/J17458</a></span>

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Yves Faroudja and Al Swain; Digital and Analog Enhancement Techniques, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978
doi: 10.5594/J17458
url: https://doi.org/10.5594/J17458

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Yves Faroudja and Al Swain; <cite id="bib-10-5594-j17458">Digital and Analog Enhancement Techniques</cite>, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978
<span class="doi">10.5594/J17458</span>
</li>