Microscan Quadrus EZ, User Manual, Page: 216 / 366

9-8
Quadrus EZ Reader User’s Manual
Region of Interest (ROI)
Region of Interest (ROI)
You can narrow the active image area (field of view) by defining a specific area or region of
interest.
This is especially useful for increasing decode speed, improving threshold, and selecting
the desired symbol from multiple symbols the FOV.
Notes:
1. When using video output, the “Region of Interest” image will only be shown in triggered
video mode. When in live video mode, the entire image from the image sensor will
be shown.
2. If external camera is in use the maximum row and column size is the same as the
CMOS image sensor. However, if the unit has a CCD camera, the command will
range check for the CCD and will allow a larger row and column size then the sensor
has. The overall operation of the Window of Interest will not be effected if a larger
row or column size is selected.
3. The “Region of Interest” can be disabled by setting all values to 0 or setting the
“Region of Interest” area to equal the image sensor area.
Caution: Region of Interest will shrink the field of view and therefore could cause symbols
to be missed in dynamic applications.