Fundamental Concepts in Video
Fundamental Concepts in Video
Fundamental Concepts in Video
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<strong>Fundamental</strong>s of Multimedia, Chapter 5<br />
• Fig. 5.5: NTSC assigns a bandwidth of 4.2 MHz to Y ,<br />
and only 1.6 MHz to I and 0.6 MHz to Q due to humans’<br />
<strong>in</strong>sensitivity to color details (high frequency color changes).<br />
6 MHz<br />
4.2 MHz<br />
0 1.25<br />
Y I and Q<br />
4.83 5.75<br />
Picture<br />
carrier<br />
Color<br />
subcarrier<br />
Audio<br />
subcarrier<br />
6.0<br />
f (MHz)<br />
Fig. 5.5: Interleav<strong>in</strong>g Y and C signals <strong>in</strong> the NTSC spectrum.<br />
16 Li & Drew c○Prentice Hall 2003
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