DCT-Based Television Codec for DS3 Digital Transmission

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: An intrafield codec based on discrete cosine transform (DCT), and foreseen for transmission of NTSC video signals at DS3 line bit rate, is described. The codec is provided at the input (encoder) and output (decoder) with an interchangeable interface so that it can be used also for the 4:2:2 studio standard transmission. In the case of the NTSC video signal, after the analog-to-digital (A/D) conversion, the signal is split into three component-like signals, to which a two-dimensional 8 × 8 DCT is applied. The DCT-processed samples are then coded for transmission using a variable-length coding. A line buffer adapts the variable data rate, coming from the encoding procedure, to the line bit rate. To implement the more complex parts of the codec, several very large-scale integrated (VLSI) semicustom circuits have been designed.
Publication Date: 1989-09-01
DOI: 10.5594/J02662
Link: https://doi.org/10.5594/J02662
Author(s): Silvio Cucchi, Francesco Molo

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Silvio Cucchi and Francesco Molo; DCT-Based Television Codec for DS3 Digital Transmission, SMPTE Journal ( Volume: 98, Issue: 9, September 1989); SMPTE, 1989. Available at https://doi.org/10.5594/J02662

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Silvio Cucchi and Francesco Molo; DCT-Based Television Codec for DS3 Digital Transmission, SMPTE Journal ( Volume: 98, Issue: 9, September 1989); SMPTE, 1989. Available at https://doi.org/10.5594/J02662

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<span class="citation">Silvio Cucchi and Francesco Molo; <cite>DCT-Based Television Codec for DS3 Digital Transmission</cite>, SMPTE Journal ( Volume: 98, Issue: 9, September 1989); SMPTE, 1989. Available at <a href="https://doi.org/10.5594/J02662" target="_blank" rel="noopener">https://doi.org/10.5594/J02662</a></span>

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Silvio Cucchi and Francesco Molo; DCT-Based Television Codec for DS3 Digital Transmission, SMPTE Journal ( Volume: 98, Issue: 9, September 1989); SMPTE, 1989
doi: 10.5594/J02662
url: https://doi.org/10.5594/J02662

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<li>
Silvio Cucchi and Francesco Molo; <cite id="bib-10-5594-j02662">DCT-Based Television Codec for DS3 Digital Transmission</cite>, SMPTE Journal ( Volume: 98, Issue: 9, September 1989); SMPTE, 1989
<span class="doi">10.5594/J02662</span>
</li>