ALLIED Vision Technologies Guppy PRO F-503 User Manual
Page 187
Video formats, modes and bandwidth
Guppy PRO Technical Manual V4.0.0
185
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, so that 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. Thus one cam-
era can be connected to the bus at S400.
The same camera, run at S800 would require only 32% of the available band-
width, due to the doubled speed. Thus up to three cameras can be connected
to the bus at S800.
Format Mode
Resolution
240
fps
120
fps
60
fps
30
fps
15
fps
7.5
fps
3.75
fps
0
0
160 x 120 YUV (4:4:4)
24 bit/pixel
4H
640p
480q
2H
320p
240q
1H
160p
120q
1/2H
80p
60q
1/4H
40p
30q
1/8H
20p
15q
1
320 x 240 YUV (4:2:2)
16 bit/pixel
8H
2560p
1280q
4H
1280p
640q
2H
640p
320q
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
8H
5120p
1920q
4H
2560p
960q
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
4H
2560p
1280q
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
4
640 x 480 RGB
24 bit/pixel
4H
2560p
1280q
2H
1280p
960q
1H
640p
480q
1/2H
320p
240q
1/4H
160p
120q
5
640 x 480 (Mono8)
8 bit/pixel
8H
5120p
1280q
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
4H
2560p
1280q
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
7
Reserved
Table 87: Format_0