Graphic Scaling and Validity of Japanese Descriptive Terms Used in Subjective-Evaluation Tests

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: This article describes the perceived intervals between the official Japanese descriptive terms for subjective-evaluation tests of picture quality, which correspond to the English descriptive terms recommended by the CCIR. The perceived intervals in both the five-grade quality scale and the five-grade impairment scale are examined. using the graphic-scaling method. The results indicate that they are almost uniform. Next, the validity of the results derived is examined. HDTV picture qualities are evaluated under various random-noise levels, using the EBU method. The perceived intervals. concerning the Japanese five-grade impairment scale, are obtained by applying the method of successive categories to the evaluated results. Consequently, it is verified that the results from the EBU method correspond to those from the graphic-scaling method.
Publication Date: 1993-07-01
DOI: 10.5594/J03770
Link: https://doi.org/10.5594/J03770
Author(s): Nagato Narita

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Nagato Narita; Graphic Scaling and Validity of Japanese Descriptive Terms Used in Subjective-Evaluation Tests, SMPTE Journal ( Volume: 102, Issue: 7, July 1993); SMPTE, 1993. Available at https://doi.org/10.5594/J03770

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Nagato Narita; Graphic Scaling and Validity of Japanese Descriptive Terms Used in Subjective-Evaluation Tests, SMPTE Journal ( Volume: 102, Issue: 7, July 1993); SMPTE, 1993. Available at https://doi.org/10.5594/J03770

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<span class="citation">Nagato Narita; <cite>Graphic Scaling and Validity of Japanese Descriptive Terms Used in Subjective-Evaluation Tests</cite>, SMPTE Journal ( Volume: 102, Issue: 7, July 1993); SMPTE, 1993. Available at <a href="https://doi.org/10.5594/J03770" target="_blank" rel="noopener">https://doi.org/10.5594/J03770</a></span>

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Nagato Narita; Graphic Scaling and Validity of Japanese Descriptive Terms Used in Subjective-Evaluation Tests, SMPTE Journal ( Volume: 102, Issue: 7, July 1993); SMPTE, 1993
doi: 10.5594/J03770
url: https://doi.org/10.5594/J03770

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<li>
Nagato Narita; <cite id="bib-10-5594-j03770">Graphic Scaling and Validity of Japanese Descriptive Terms Used in Subjective-Evaluation Tests</cite>, SMPTE Journal ( Volume: 102, Issue: 7, July 1993); SMPTE, 1993
<span class="doi">10.5594/J03770</span>
</li>