Pantera SA 2M30 - Frame Grabbers

Pantera SA DS -21-02M30 and DS-22-02M30 User’s Manual 29
3.10 Defining an Area of Interest (AOI)
By default, 2M30 has an active pixel region of 1600 x 1200. However, using the area of
interest command, you can specify a reduced subset of the image to be read out from the
sensor. The unwanted data is dumped, resulting in an increased frame rate and a
reduction in data volume.
Calculating Frame Rate
Use the following formula to calculate the camera’s frame rate:
Maximum Frame Rate (fps)=1000000/[({#Active Lines/Binning Factor + 6} x Step Size) +
(#Dumped Lines x 2.8) + 94]
Where Step Size is:
Binning Mode 1 x 1 2 x 2 4 x 4
Step Size (µs) 23.9 27.0 33.4
Frame Rate Calculation Example
The frame rate for a camera using an area of interest of 200 lines and 1 x 1 binning is:
= 1000000/[(206 x 25.8) + (1000 x 2.8) + 94]
= 1000000/[5314.8 + 2800 + 94]
= 121.8
Area of Interest Example
In the example in Figure 13, an area of interest is set to capture 600 lines of image data—
the remaining 600 lines are dumped through the sensor’s fast dump gate. The area of
interest begins at line 301 and ends at line 900. The command syntax for this example is
wse 0 0 1 301 1 900
DALSA 03-32-10150-01