NIP
Pollux GigE Series – 01M / 05M Camera
Page
21
of
56 Manual 1.0
4.2.3
ROI Setting
The following three factors decide the maximum camera frame rate:
•
Frame Readout time: the shorter the image height, the less the readout
time and the higher the frame rate.
•
Exposure time: the less the exposure time, the higher the frame rate.
•
Bandwidth: the wider the bandwidth, the higher the frame rate.
The camera can output ROI images depending on your requires. ROI setting can
decrease the data transmission bandwidth and increase the camera frame rate.
The following formulas show the frame rate corresponding to the ROI:
Fps1 = 1/(ROI height * T1 + ROI OffsetY * T2 + T3);
Fps2 = 1/Exp Time;
Fps3 = Bandwidth / PayloadSize;
Model
T1(
μ
s)
T2(
μ
s)
T3(
μ
s)
PX01M90MGE
11.06
0
375.89
PX05M23MGE
18.77
0
150.19
Table 6.
ROI and Frame Rate Parameter Table
The lowest frame rate within the three formulas is Resulting Frame Rate.
Click Image Format Control and move. Select Width and Height. Adjust the ROI on
the right side. The value in the Offset X and the Offset Y refer to the ROI starting
point at the top left corner. The following figure shows the ROI setting.
Figure 15.
ROI Setting