DigitalVideoAndHDTVAlgorithmsAndInterfaces.pdf

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Amplitude ripple tolerance in the passband is ±0.0.05 dB with respect to insertion loss at 100 kHz. Insertion loss is 6 dB or more at half the sampling rate of the Y’, R’, G’ and B’ components. SMPTE 274M includes luma and color difference templates in “Annex B (Informative).” In standards lingo, the word informative signals that the information is distributed with the standard, but compliance with the annex is not required to claim conformance with the standard. CHAPTER 46 1280 × 720 HDTV 555
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Digital Video and HDTV Algorithms a
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Publishing Director: Diane Cerra Pu
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Digital Video and HDTV Algorithms a
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Raster images 1 This chapter introd
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4:3 16:9 Figure 1.3 Pan-and-scan cr
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Figure 1.7 Pixel arrays of several
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SDTV 1’ ( 1⁄60°) d= 1⁄480 SD
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See Appendix B, Introduction to rad
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4095 101 100 0 ∆ = 1% 40.95 : 1 F
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See Bit depth requirements, on page
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Resolution properly refers to spati
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The oct in octave refers to the eig
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Sound pressure level, relative 1 0
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Figure 2.4 Footroom and headroom ar
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Figure 3.1 Contrast control determi
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SMPTE RP 71, Setting Chromaticity a
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Figure 3.7 Brightness control in Ph
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Raster images in computing 4 This c
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Symbolic image description Many met
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Grayscale A grayscale image represe
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Poynton, Charles, “The rehabilita
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The browser-safe palette forms a ra
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Image width is the product of socal
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Don’t confuse PSF with progressiv
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Figure 5.3 Diagonal line reconstruc
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Figure 5.7 Bitmapped graphic image,
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Figure 5.8 Gaussian spot size. Soli
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Flicker is sometimes redundantly ca
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The word raster is derived from the
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Figure 6.3 Production aperture comp
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TEST SCENE SCANNING FIRST FIELD Ima
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Progressive Interlaced Image row 0
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FIRST FIELD SECOND FIELD Figure 6.1
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Table 6.3 Video systems are classif
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An electrical engineer may call thi
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When digital information is process
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Resolution properly refers to spati
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Figure 7.6 Vertical resolution in 4
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Pixel count places a constraint on
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The term luminance is widely misuse
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Figure 8.4 Nonlinearly coded relati
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Tristimulus values are correctly re
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Giorgianni, Edward J., and T.E. Mad
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Simultaneous contrast ratio is the
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Imaging system Some people suggest
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Introduction to luma and chroma 10
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Luma and color differences can be c
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4:2:0 This scheme is used in JPEG/J
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Figure 10.4 Interstitial chroma fil
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The notation CCIR is often wrongly
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Square sampling Component 4:2:2 Rec
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Component 4:2:2 Rec. 601-5 The tech
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See Table 13.1, on page 114, and th
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NTSC stands for National Television
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NTSC and PAL encoding NTSC or PAL e
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Figure 12.2 S-video interface invol
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Concerning the absence of D-4 in th
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Figure 13.1 Comparison of aspect ra
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ATSC A/53, Digital Television Stand
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System Scanning SMPTE standard STL
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data stored in scan-line order, hor
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Compression ratio Quality/applicati
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Figure 14.2 MPEG group of pictures
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Figure 14.6 Example GOP I0B1B2P3B4B
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Many MPEG terms - such as frame, pi
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Voltage, mV 700 350 0 -300 Code, 8-
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SMPTE 259M, 10-Bit 4:2:2 Component
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Voltage, mV 700 350 SMPTE 305.2M, S
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IEC 61883-1, Consumer audio/video e
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For details concerning SCH, see pag
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Some video switchers incorporate di
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My explanation describes the origin
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Figure 16.2 Cosine waves at exactly
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1 1+ sin 0.75 ωt 2 0.5 Figure 16.6
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0 1 2 3 1.0 0.8 0.6 0.4 0.2 0 Time,
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-5 -4 -3 -2 1.0 0.8 0.6 0.4 0.2 -1
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Impulse (point sampling) 0 1 t 0 2
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Figure 16.12 [1, 1] FIR filter sums
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Figure 16.17 5-tap FIR filter respo
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Figure 16.20 Comb filter response r
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125 ns, 45° at 1 MHz 125 ns, 90°
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Compensation of undesired phase res
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ωS 2 ⎛ 1 ⎞ Eq 16.3 Ne ≈ ⋅
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We could use the term weighting, bu
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Figure 16.26 FIR filter example, 25
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1 1+ sin 0.44 ωt 2 0.5 Figure 16.2
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Resampling, interpolation, and deci
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Figure 17.1 Two-times upsampling st
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Figure 17.4 Analog filter for direc
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Julius O. Smith calls this Waring-
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Smith, A.R., “Planar 2-pass textu
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You can consider the entire stopban
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1 1 1 512 2 2 8 = · In a direct im
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Taken literally, decimation involve
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0 Horizontal displacement (fraction
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Figure 18.7 Spatial frequency spect
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Schreiber, William F., and Donald E
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Oversampling to double the number o
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10 k 1 k 100 10 1 100 m 10 m 100 1
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Viewing environment Max. luminance,
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ISO 5-1, Photography - Density meas
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Campbell, F.W., and V.G. Robson,
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See Introduction to radiometry and
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Figure 20.2 Luminance and lightness
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Figure 21.1 Example coordinate syst
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Power, relative 400 500 600 700 Wav
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B G 400 500 600 700 400 500 600 700
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The term sharpening is used in the
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Grassmann’s Third Law: Sources of
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1 y = 1- x 1 Spectral locus Line of
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Figure 21.9 SPDs of blackbody radia
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Tungsten illumination can’t have
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∆E* is pronounced DELTA E-star. i
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McCamy argues that under normal con
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Wyszecki, Günter, and W.S. Styles,
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If you are unfamiliar with the term
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CIE standards established in 1964 w
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Table 22.2 NTSC primaries (obsolete
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IEC FDIS 61966-2-1, Multimedia syst
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Michael Brill and R.W.G. Hunt argue
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CMF of X sensor CMF of Y sensor CMF
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CMF of Red sensor CMF of Green sens
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Spectral sensitivity of Red sensor
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For the D 65 reference now standard
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Eq 22.10 RGB components where one o
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Poynton, Charles, “Wide Gamut Dev
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Opto-electronic transfer function (
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Roberts, Alan, “Measurement of di
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The importance of rendering intent,
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See Headroom and footroom, on page
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Eq 23.7 Video signal, V’ 1.2 1.0
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Figure 23.5 Rec. 709, sRGB, and CIE
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PDP and DLP devices are commonly de
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Concerning the conversion between R
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Video, PC TRISTIM. Computergenerate
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An SGI workstation can be set to ha
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The Rec. 709 function is suitable f
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What are loosely called JPEG files
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+1 G AXIS 0 G Bk 0 255 G’ COMPONE
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Here the term color difference refe
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Figure 24.3 shows a time delay elem
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See Appendix A, YUV and luminance c
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Nonlinear red, green, blue (R’G
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The mismatch between the primaries
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XYZ or R 1G 1B 1 TRISTIMULUS 3×3 (
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Owing to the dependence of the opti
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Luma/color difference component set
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System Notation Color difference sc
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For a discussion of primary chromat
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Figure 25.2 P BP R components for S
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The Y’P B P R and Y’C B C R sca
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Eq 25.6 Eq 25.7 You can determine t
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+128 +127 0 -128 (clipped) 0 Figure
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When the term Y’UV (or YUV) is en
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Yl G G Figure 26.1 B’-Y’, R’-
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Figure 26.3 CBCR compo- +112 nents
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Concerning Pointer, see the margina
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Equations 26.12 and 26.13 are writt
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100% 90% 50% 10% 0% 0 1 2 3 4 5 Y
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Active lines (vertically) encompass
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Back porch is described in Analog h
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255 Full-range code, computing 0 -1
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danger in using such operations: Up
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If you use CTI, you run the risk of
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See Appendix A, YUV and luminance c
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Eq 28.3 Eq 28.4 Eq 28.5 Eq 28.6 1
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It is unfortunate that the formulat
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COMPOSITE NTSC VIDEO Y’/C SEPARAT
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COMPOSITE PAL VIDEO Y’/C SEPARATO
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COMPOSITE VIDEO or S-video LUMA COM
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COMPOSITE NTSC VIDEO Saturation Hue
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Y’ C f SC Figure 29.1 Y’/C spec
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1 2 ... 262 263 Figure 29.4 Color s
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Figure 29.7 Dot crawl is exhibited
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1 2 3 4 ... Figure 29.9 Color subca
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COMPOSITE PAL VIDEO Y’/C SEPARATO
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t Opposite field Y’+C t+1⁄59.94
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CHROMA FILTER RESPONSE CHROMA (C) S
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CHROMA (C) SPECTRAL POWER LUMA (Y
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Because an analog demodulator canno
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Y’ I Q 1.3 MHz 600 kHz SUBCARRIER
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A decoder cannot determine whether
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525 · 60 = 15750 2 Line rate The t
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60 1000 525× 2 1001 315 88 3 57954
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Sampling NTSC at 4f SC gives 910 sa
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60 Hz 7 · 5 · 5 · 3 525/60 (480
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3· 588· 25 Hz = 44100 Hz 3 490 30
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See Frame, field, line, and sample
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SMPTE 258M, Television - Transfer o
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The IRE unit is introduced on page
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SMPTE 12M, Time and Control Code. S
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The V and H bits are asserted durin
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* 1250/50 is an exception; see SMPT
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See NTSC two-frame sequence, on pag
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SMPTE 260M describes a scheme, now
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SMPTE 292M, Bit-Serial Digital Inte
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A Naive combined sync establishes h
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1 PRE- BROAD EQUALIZATION PULSES 0V
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Most lines have a single normalwidt
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1 23 4 5 6 7 Figure 34.6 Sync separ
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Figure 34.7 BNC connector Figure 34
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Figure 35.1 A videotape recorder (V
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In consumer VCR search mode playbac
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Heads for other longitudinal tracks
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The term sync in sync block is unre
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Notation Component analog VTRs are
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Even if playback errors are so seve
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Notation Method Tape width (track p
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D-7 (DVCPRO), DVCAM runs twice the
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D-12 (DVCPRO HD) The DV standard wa
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Figure 36.1 “2-3 pulldown” refe
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Film is transferred to 576i25 video
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FILM A A VIDEO, 2-3 PULLDOWN A VIDE
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Native 24 Hz coding Traditionally,
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Figure 37.1 Test scene FIRST FIELD
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For a modest improvement over 2-tap
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Figure 37.13 Interstitial spatial f
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IN Figure 37.17 Cosited spatial fil
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ISO/IEC 10918, Information Technolo
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Figure 38.2 DCT concentrates image
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Eq 38.1 Owing to the eight-line-hig
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In MPEG-2, DC terms can be coded wi
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Figure 38.8 Zigzag scanning is used
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Figure 38.12 Compression ratio cont
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Hamilton, Eric, JPEG File Interchan
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Concerning DVC recording, see page
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356 357 358 359 Figure 39.2 Chroma
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CMs in a segment are denoted a thro
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For a more elaborate description, a
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DV HD HD stands for high definition
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IEC 61904, Video recording - Helica
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MPEG-2 specifies several algorithmi
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422P@ML allows 608 lines at 25 Hz f
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Figure 40.1 MPEG-2 frame picture co
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If horizontal size or vertical size
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A prediction region in an anchor fr
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Each nonintra macroblock in an inte
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Figure 40.4 Frame DCT type involves
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Distributed refresh does not guaran
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Whether an encoder actually searche
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Figure 40.9 Buffer occupancy in MPE
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Group of pictures (GOP header) the
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Gibson, Jerry D., Toby Berger, Tom
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f FR f H 30 = ≈ 29. 97 Hz 1. 001
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Concerning closed captions, see ANS
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CHAPTER 41 480 i COMPONENT VIDEO 50
Page 512 and 513: SMPTE RP 187, Center, Aspect Ratio
Page 514 and 515: 8-bit code 235 125 1 / 2 16 Figure
Page 516 and 517: Voltage, mV 700 350 0 -300 0 H EIA/
Page 518 and 519: 480i NTSC composite video 42 Althou
Page 520 and 521: Concerning the association of U wit
Page 522 and 523: IEC 60933-5 (1992-11) Interconnecti
Page 524 and 525: 8-bit code 200 176.25 70.5 60 4 757
Page 526 and 527: Derived line rate is 15.625 kHz. It
Page 528 and 529: For details concerning VITC in 576i
Page 530 and 531: CHAPTER 43 576 i COMPONENT VIDEO 52
Page 532 and 533: SMPTE RP 187, Center, Aspect Ratio
Page 534 and 535: Code 235 125 1 / 2 16 Figure 43.2 5
Page 536 and 537: 1135 4 1 + = 625 709379 2500 = 283.
Page 538 and 539: See NTSC Y’IQ system, on page 365
Page 540 and 541: 8-bit code 211 137.5 64 EBU Tech. 3
Page 542 and 543: ANSI/EIA-189-A, Encoded Color Bar S
Page 544 and 545: Figure 45.3 NTSC- Encoded 100/0/75/
Page 546 and 547: ITU-R Rec. BT.471, Nomenclature and
Page 548 and 549: Figure 45.7 Modulated 5-step stair
Page 550 and 551: ( ) PULSE T The risetime, from 10%
Page 552: Figure 45.12 FCC composite test sig
Page 555 and 556: tri Trilevel pulse BR Broad pulse T
Page 557 and 558: 550 DIGITAL VIDEO AND HDTV ALGORITH
Page 559 and 560: Component digital 4:2:2 interface Y
Page 561: Passband insertion gain, dB Stopban
Page 565 and 566: 24 1. 001 30 1. 001 60 1. 001 ≈
Page 567 and 568: 0H precedes the first word of SAV b
Page 569 and 570: mV +300 Sync 0 -300 +350 +300 PB, P
Page 571 and 572: 564 DIGITAL VIDEO AND HDTV ALGORITH
Page 573 and 574: Component digital 4:2:2 interface Y
Page 576: Part 5 Broadcast and consumer stand
Page 579 and 580: In 1993, the International Radio Co
Page 581 and 582: Main audio program, (monophonic) Fr
Page 583 and 584: Only CN/PAL is deployed today - in
Page 585 and 586: ITU-R system Colloquial Scanning fS
Page 587 and 588: NTSC-4.43 The NTSC-4.43 scheme, som
Page 589 and 590: Incoherent subcarrier Many consumer
Page 591 and 592: Color-under recording was introduce
Page 594 and 595: Digital television broadcast standa
Page 596 and 597: MPEG-2 specifies upper bounds for p
Page 598 and 599: DVB standards are promulgated by ET
Page 600: Appendices A YUV and luminance cons
Page 603 and 604: for 500 pounds of cement, you will
Page 605 and 606: Pratt, William K., Digital Image Pr
Page 607 and 608: Hamilton, Eric, JPEG File Interchan
Page 609 and 610: Eq B.1 Radiant exitance sums emitte
Page 611 and 612: A lumen is produced by about 1.5 mW
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Michael Brill and Bob Hunt agree th
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Glossary of video signal terms This
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2. An SDTV component digital video
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Alpha, α In computer graphics, a c
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235 at an 8-bit component (Rec. 601
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CCIR System 1. Former designation,
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“combination” (of the RF parame
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Y’C B C R , and MAC. Distinguishe
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CVBS Composite video with burst and
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Decimation Resampling producing few
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DVCPRO50 Digital video cassette, pr
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along with all associated preceding
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correction is usually performed at
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Interstitial 1. Chroma subsampling
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Level 1. In video, generally, the a
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M-JPEG A technique or file format u
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Nit Candela per meter squared, cd·
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PAL, nonmathematical A PAL (1) syst
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R’-Y’ See B’-Y’, R’-Y’,
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tion. The precise color interpretat
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SDTI Serial data transmission inter
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Transcoding 1. Traditionally, conve
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VHS Video Home System: A consumer a
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α, alpha (absorptance) 602 α, alp
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5000 K (color temperature) 225 525/
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aspect ratio (cont’d) 4:3 in 480i
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Bringhurst, Robert xliv British Sta
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clipping (cont’d) of C B and C R,
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composite (cont’d) NTSC and PAL 9
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decoder controls 346 conventional l
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EIAJ 573 electro-optical transfer f
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filter (cont’d) and sampling 141-
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grayscale 35 see also gamma green 2
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intensity (cont’d) radiant (I) 20
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level (cont’d) of AC coefficient
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McLellan, J.H. 167 MCU (minimum cod
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NTSC (cont’d) primary chromaticit
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pixel (cont’d) bilevel 34 graysca
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ate (cont’d) sampling, 13.5 MHz 9
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saturation 212 and colorbars 535 an
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spatiotemporal domain 10 (sketch) S
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tone reproduction curve (TRC) see t
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viewing (cont’d) distance (cont
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sketch by Kevin Melia About the aut
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