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Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971)
[ACTIVE]

Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
80, No. 8, pp. 614–619
Abstract
Differential gain (DG) and differential phase (DP) are measures of the variation in the amplitude and phase, respectively, of the chrominance signal with changes in the amplitude of the luminance signal. The effect of DG and DP distortions are to change the color saturations and hue of the transmitted color in an NTSC TV signal. Subjective evaluations of the impairing effects of DG and DP are necessary in order to establish acceptable limits on TV transmission. Subjective tests were designed to obtain the subjective evaluations of different types and magnitudes of DG and DP distortions. The results of these tests indicate that the mean levels of DP which are rated “just perceptible” or better range from approximately 7° to over 18° depending on the type of DP distortion studied. Similarly, the mean levels of DG which were rated “just perceptible” or better range from approximately 2.4 dB to 3.7 dB depending on the type of DG distortion tested.
Publication Date
1971-08-01
DOI
10.5594/J05765
ISSN
Print: 0361-4573
Link
https://doi.org/10.5594/J05765
Author(s)
John R. CavanaughBell Laboratories, Holmdel, NJ 07733.
Anthony M. LessmanBell Laboratories, Holmdel, NJ 07733.
Copyright
© 1971 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • A Single Weighting Characteristic for Random Noise in Monochrome and NTSC Color Television [Active]
  • 1. “IRE standards on television: measurement of differential gain and differential phase, 1960,” Proc IRE , 48 : 201 – 208 , Feb. 1960 ; IRE Standard 60 IRE 23.S1. EXTERNAL
  • 2. Kelly H. P. , “Differential phase and gain measurements in color television systems,” Elec. Eng. , 73 : 799 – 802 , Sept. 1954 . EXTERNAL
  • 3. Fowler A. D. , “Performance of Bell System intercity networks transmitting NTSC Color Television Signals,” IEEE Trans, on Broadcast and TV Receivers , BTR-12 , No. 2 : 22 – 26 , May 1966 . EXTERNAL
  • 4. Dean C. E. , “Measurements of the subjective effects of interference in television reception,” Proc. IRE , 48 : 1035 – 1049 , June 1960 . EXTERNAL
  • 6. Pearson D. Rubinstein C. B. , “The influence of transmission errors on the choice of color television receiver primaries,” presented at Symposium on Picture Bandwidth Compression at MIT, April 1969 . EXTERNAL
  • 7. Carnt P. S. Townsend G. B. , “Subjective visual effects of A.N.T.S.C. Colour Television Receiver Tolerances,” Acta Electronica , 2 , No. 1,2 : 77 – 86 , 1957–1958 . EXTERNAL
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John R. Cavanaugh and Anthony M. Lessman; Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05765
Snippet:
John R. Cavanaugh and Anthony M. Lessman; Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05765

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John R. Cavanaugh and Anthony M. Lessman; Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05765
Snippet:
<span class="citation">John R. Cavanaugh and Anthony M. Lessman; <cite>Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures</cite>, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971. Available at <a href="https://doi.org/10.5594/J05765" target="_blank" rel="noopener">https://doi.org/10.5594/J05765</a></span>

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John R. Cavanaugh and Anthony M. Lessman; Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971
doi: 10.5594/J05765
url: https://doi.org/10.5594/J05765
Snippet:
<li>
John R. Cavanaugh and Anthony M. Lessman; <cite id="bib-10-5594-j05765">Subjective Effects of Differential Gain and Differential Phase Distortions in NTSC Color Television Pictures</cite>, Journal of the SMPTE ( Volume: 80, Issue: 8, August 1971); SMPTE, 1971
<span class="doi">10.5594/J05765</span>
</li>

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