Preserving Color Television Programs on Black-and-White Film by Electronic Video Recording

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Electronic Video Recording (EVR) is a system for recording encoded color television signals on black-and-white motion-picture film. To examine the system capability as a medium for permanent preservation of color television programs, properties of the recorded films were measured with a fine beam microdensitometer. The granularity of the recorded master and print films, if normalized by the image area, was found to be no worse than that of 35mm motion-picture color negative films. The signal-to-noise ratios of both the recorded films were 44 dB at medium density. The loss in frequency response of the recorded master film was less than 2 dB at 4.2 MHz, and that of the print film throughout the printing process was minimal. Modifications of the system, so as to use positive master and print film with an appropriate form of gray scale, line-scanning recording, an added anti-jitter code and players with line-scanning devices, were proposed and tested. It has been found that a modified system consisting of the recorded films with the modifications described and players with line sensors or a line-scanning flying-spot scanner would be effective for broadcasting use and very well suited for permanent preservation of color television programs.
Publication Date: 1978-01-01
DOI: 10.5594/J17455
Link: https://doi.org/10.5594/J17455
Author(s): Akiji Maekawa, Hiroshi Iino, Takashi Shigesawa, Tadakazu Tsutada

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Akiji Maekawa, Hiroshi Iino, Takashi Shigesawa, and Tadakazu Tsutada; Preserving Color Television Programs on Black-and-White Film by Electronic Video Recording, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at https://doi.org/10.5594/J17455

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Akiji Maekawa, Hiroshi Iino, Takashi Shigesawa, and Tadakazu Tsutada; Preserving Color Television Programs on Black-and-White Film by Electronic Video Recording, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at https://doi.org/10.5594/J17455

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<span class="citation">Akiji Maekawa, Hiroshi Iino, Takashi Shigesawa, and Tadakazu Tsutada; <cite>Preserving Color Television Programs on Black-and-White Film by Electronic Video Recording</cite>, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978. Available at <a href="https://doi.org/10.5594/J17455" target="_blank" rel="noopener">https://doi.org/10.5594/J17455</a></span>

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<li>
Akiji Maekawa, Hiroshi Iino, Takashi Shigesawa, and Tadakazu Tsutada; <cite id="bib-10-5594-j17455">Preserving Color Television Programs on Black-and-White Film by Electronic Video Recording</cite>, SMPTE Journal ( Volume: 87, Issue: 1, January 1978); SMPTE, 1978
<span class="doi">10.5594/J17455</span>
</li>