A Bandwidth Expansion Method for Chrominance Signals with NTSC Receiver Compatibility

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE J
Volume: 101, No. 2, pp. 93–100
Abstract: A bandwidth expansion method that is compatible with NTSC receivers is described. This method expands the transmissible bandwidth of the Q signal (the narrowband chrominance signal of the NTSC system) to 1.5 MHz by field-sequential transmission of high-frequency components of the I and Q signals. The compatibility of this method with NTSC receivers is satisfactory, and the method improves picture quality in some pictures by improving the color sharpness. Picture quality is further improved by compensating for the degraded frequency characteristics on vestigial sideband (VSB) transmission of the NTSC chrominance signals.
Publication Date: 1992-02-01
DOI: 10.5594/J02343
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J02343
Author(s): Taiichiro KuritaNHK Science and Technical Research Laboratories, Tokyo, Japan.
Ichiro YuyamaNHK Science and Technical Research Laboratories, Tokyo, Japan.
Taiji NishizawaNHK Science and Technical Research Laboratories, Tokyo, Japan.
Copyright: © 1992 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

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2. Kurita T. Yuyama I. Nishizawa T. , “Bandwidth Expansion of NTSC Chrominance Signals by Field-Sequential Transmission” (in Japanese), J. ITEJ. , 44 : 1034 – 1043 , Aug. 1990 . EXTERNAL
3. Kurita T. Yuyama I. , “A Decoder with VSB Compensation and Field-Sequential Transmission of Chrominance Signals Improves Picture Quality” (in Japanese), J. ITEJ. , Sept. 1990 . EXTERNAL
4. Middletone W. E. K. Holmes M. C. , “The Apparent Colors of Surface of Small Subtense,” J. Opt. Soc. Am. , 39 : 582 – 592 , July 1949 . EXTERNAL
5. Isono H. Sakata H. Kusaka H. , “Subjective Evaluation of Apparent Reduction of Chromatic Blur Depending on Luminance Signals,” IEEE Trans. Broadcasting , 24 : 107 – 115 , Dec. 1978 . EXTERNAL
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7. Horst G. J. C. Bouman M. A. , “Spatiotemporal Chromaticity Discrimination,” J. Opt. Soc. Am. , 59 : 1482 – 1488 , Nov. 1969 . EXTERNAL
8. Sakata H. , “Chromatic Temporal Frequency Response of Human Vision” (in Japanese), IECE Trans. , J63-A , 7 : 451 – 456 , July 1980 . EXTERNAL
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Taiichiro Kurita, Ichiro Yuyama, and Taiji Nishizawa; A Bandwidth Expansion Method for Chrominance Signals with NTSC Receiver Compatibility, SMPTE Journal ( Volume: 101, Issue: 2, February 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02343

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Taiichiro Kurita, Ichiro Yuyama, and Taiji Nishizawa; A Bandwidth Expansion Method for Chrominance Signals with NTSC Receiver Compatibility, SMPTE Journal ( Volume: 101, Issue: 2, February 1992); SMPTE, 1992. Available at https://doi.org/10.5594/J02343

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<span class="citation">Taiichiro Kurita, Ichiro Yuyama, and Taiji Nishizawa; <cite>A Bandwidth Expansion Method for Chrominance Signals with NTSC Receiver Compatibility</cite>, SMPTE Journal ( Volume: 101, Issue: 2, February 1992); SMPTE, 1992. Available at <a href="https://doi.org/10.5594/J02343" target="_blank" rel="noopener">https://doi.org/10.5594/J02343</a></span>

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Taiichiro Kurita, Ichiro Yuyama, and Taiji Nishizawa; <cite id="bib-10-5594-j02343">A Bandwidth Expansion Method for Chrominance Signals with NTSC Receiver Compatibility</cite>, SMPTE Journal ( Volume: 101, Issue: 2, February 1992); SMPTE, 1992
<span class="doi">10.5594/J02343</span>
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