Frame









Frame Rate


FPS = Frames Per Second
30
frame rate = 30 fps
30 /



24





24 /




Frame Rate Modes

Constant Frame Rate


Variable Frame Rate






16 26 /


Frame Types





3


I Frames - Intra-coded Pictures

Key Frames


P Frames - Predicted Pictures

B Frames Bi-Predicted Pictures



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... 264
Slices -





1920X1080

1080p

1080i

-
P = progressive scan


25 /
25
Frame rate = 25 fps or 25 frame per second

-
I = interlaced



""
Images inside Interlaced videos = Fields - not frames
60/
60 ()
Frame rate = 60 fps or 60 field per second

""
""
Progressive Frame rate = Frames Per Seconds (fps)
Interlaced Frame rate = Fields Per Seconds (fps)
" "


1

1080
4


2


1080i60
60 /


3


60i
60 /

24p
24 /


4


"-"



Deinterlacing
















1080i50

720p25





1080i60

1080p24












1080 1080
1080 1080
1080
Pre-Air Sources



1080 1080
720



1080

1080



Refresh Rate



Hz = Cycles Second
120
120

60


Response Time


5
1Second = 1000ms


Common Frame Rates
23.976p
24p
25p
48p
50i
60i


High Frame Rate
HFR = 48fps & more


" "

5 48

60
48/


Soup Opera Effect











48 /


Video BitRate

8000 /
Bitrate = 8000 kbps (kilobit per second)
8000

1 megabyte = 8 megabit
1 megabit = 1024 kilobit
1 kilobit = 1024 bit






264 1.78
720p24
4 6
1080p24
8
1080 720


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4 " "
" "




Total Bitrate



10000 /
1500 / 640 60 /
12200
Total bitrate = 10000+1500+640+60 = 12200 kbps





1 Byte = 8 bit
1 KiloByte = 8 kilobit
1 MegaByte = 8 megabit
8
12
225
(128)*(150) = 225 MB
150


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