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Video formats, modes and bandwidth
OSCAR Technical Manual V2.4.0
132
As an example, VGA MONO8 @ 60 fps requires four lines (640 x 4 = 2560 pix-
els/byte) to transmit every 125 µs: this is a consequence of the sensor's line
time of about 30 µs. Therefore no data needs to be stored temporarily.
It takes 120 cycles (120 x 125 µs = 15 ms) to transmit one frame, which
arrives every 16.6 ms from the camera. Again no data need to be stored tem-
porarily.
Thus around 64% of the available bandwidth (at S400) is used.
Format Mode Resolution 60
fps
30
fps
15
fps
7.5
fps
3.75
fps
0
0
160 x 120 YUV (4:4:4)
24 bit/pixel
1/2H
80p
60q
1/4H
40p
30q
1/8H
20p
15q
1
320 x 240 YUV (4:2:2)
16 bit/pixel
1H
320p
160q
1/2H
160p
80q
1/4H
80p
40q
1/8H
40p
20q
2
640 x 480 YUV (4:1:1)
12 bit/pixel
2H
1280p
480q
1H
640p
240q
1/2H
320p
120q
1/4H
160p
60q
3
640 x 480 YUV (4:2:2)
16 bit/pixel
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
4
640 x 480 RGB
24 bit/pixel
2H
1280p
960q
1H
640p
480q
1/2H
320p
240q
1/4H
160p
120q
5
640 x 480 (MONO8)
8 bit/pixel
4H
2560p
640q
2H
1280p
320q
1H
640p
160q
1/2H
320p
80q
1/4H
160
p40q
6
640 x 480 Y (MONO16)
16 bit/pixel
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
7
640 x 480 Y (MONO16)
Reserved
Table 52: Format_0