30
Rad-icon 1520 Detector
Teledyne DALSA
Region of Interest
With Region of Interest (ROI) a region in the pixel array can be selected to read-out from
the pixel array from the sensor and transferred to the host system as shown in the figure
below.
Pixel Array
ROI
ROIStartV
ROIStopV
R
O
IS
ta
rt
H
R
O
IS
to
p
H
Selecting fewer lines in vertical direction gives the possibility to increase the frame rate as
fewer lines need to be read out from the pixel array.
Selecting fewer pixels in horizontal direction does not increase the frame rate from the
image sensor but can be helpful if the bandwidth of GigE is limiting the frame rate.
Due to sensor architecture and restrictions of the GigE Vision interface the following
requirements apply:
ROIStartV must be multiple 2 with a maximum value of 1516
ROIStopV must be multiple 2 with a minimum of 31
ROIStartH must be multiple 4 with a maximum value of 2032
ROIStopH must be multiple 4 with a minimum of 31
