{
  "id": "enwiki-001355597177",
  "slug": "multiple-sub-nyquist-sampling-encoding",
  "title": "Multiple Sub-Nyquist Sampling Encoding",
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  "lead": "MUSE (Multiple sub-Nyquist Sampling Encoding), commercially known as Hi-Vision (a contraction of HIgh-definition teleVISION) was a Japanese analog high-definition television system, with design efforts going back to 1979. Traditional interlaced video shows either odd or even lines of video at any one time, but MUSE required four fields of video to complete a single video frame. Hi-Vision also refers to a closely related Japanese television system capable of transmitting video with 1035i resolution, in other words 1035 interlaced lines. MUSE was used as a compression scheme for Hi-Vision signals.",
  "body": "MUSE (Multiple sub-Nyquist Sampling Encoding), commercially known as Hi-Vision (a contraction of HIgh-definition teleVISION) was a Japanese analog high-definition television system, with design efforts going back to 1979. Traditional interlaced video shows either odd or even lines of video at any one time, but MUSE required four fields of video to complete a single video frame. Hi-Vision also refers to a closely related Japanese television system capable of transmitting video with 1035i resolution, in other words 1035 interlaced lines. MUSE was used as a compression scheme for Hi-Vision signals. YM = 0.294\\,R + 0.588\\,G + 0.118\\,B \\end{align} The chrominance C signal encodes B-YM and R-YM difference signals. By using these three signals ( YM , B-YM and R-YM ), a MUSE receiver can retrieve the original RGB color components using the following matrix: \\begin{align} \\begin{bmatrix} G \\\\ B \\\\ R \\end{bmatrix} \\ =\\ \\begin{bmatrix} 1 & -1/5 & -1/2 \\\\ 1 & 1 & 0 \\\\ 1 & 0 & 1 \\end{bmatrix} \\begin{bmatrix} 1 & 0 & 0 \\\\ 0 & 5/4 & 0 \\\\ 0 & 0 & 1 \\end{bmatrix} \\begin{bmatrix} YM \\\\ B - YM \\\\ R- YM \\end{bmatrix} \\ =\\ \\begin{bmatrix} 1 & -1/4 & -1/2 \\\\ 1 & 5/4 & 0\\\\ 1 & 0 & 1 \\end{bmatrix} \\begin{bmatrix} YM \\\\ B- YM \\\\ R - YM \\end{bmatrix} \\end{align} The system used a colorimetry matrix specified by SMPTE 240M (with coefficients corresponding to the SMPTE RP 145 primaries, also known as SMPTE-C, in use at the time the standard was created). The chromaticity of the primary colors and white point are: The luma ( EY ) function is specified as: \\begin{align} EY = 0.212\\,ER + 0.701\\,EG + 0.087\\,EB \\end{align} The blue color difference ( EPB ) is amplitude-scaled ( EB-EY ), according to: \\begin{align} EPB = 1.826\\,(EB - EY) \\end{align} The red color difference ( EPR ) is amplitude-scaled ( ER-EY ), according to: \\begin{align} EPR = 1.576\\,(ER - EY) \\end{align}",
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    "title": "Multiple Sub-Nyquist Sampling Encoding",
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        "family": "Anticloud FZ LLE",
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    "publisher": "Anticloud FZ LLE",
    "publisher-place": "Dubai, United Arab Emirates",
    "URL": "https://encyclopegia.org/a/multiple-sub-nyquist-sampling-encoding",
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          2026,
          11,
          13
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