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M1-Chapter 2(P2) - Coggle Diagram
M1-Chapter 2(P2)
1)Characteristic of analogue video format
1.Frame
Frame rate(fps)
1.PAL-25fps
2.NTSC-30fps
2.Scanning
1.Progressive
2.Interlaced
-odd-numbered lines
-even-numbered lines
3.Actual video and Vertical blanking interval
4.Synchronising pulses
5.Video Waveform-voltage=amt of light at each point in the image
1.Luminance
2.Chrominance
3.Composite video
6.Aspect ratio
3)Difference & Similarities of video format characteristics between
NTSC & PAL
system
-Resolution quality
-Frame rate
-Scanning method
-Image aspect ratio
2)Overview of NTSC,PAL,SECAM
1.NTSC-
60Hz
=60'fields' per secs
2.PAL-
50Hz
='50fields 'per secs=25fps+25fps(frames per secs)
3.SECAM-
50Hz
=50'fields' per secs=25fps+25fps
4)YC Waveform monitor/Vectorscope
1.YC waveform monitor
gives human a
graphical display of the luminance and chrominance of footage
2.Vectorscope
used to show the
saturation levels of an image colours