User manual

HS-51/HS-51X Wireless Handheld Reader User Manual 5-11
Read Cycle
Window of Interest
The active pixel area of the image sensor is called the Window of Interest (WOI). The
WOI allows the user to select an area of the field of view in which the desired symbol is located.
The programmable window of interest increases decode speed, improves threshold, and
makes it easy to select specific symbols from among several in the field of view. The user
provides the upper-left pixel location and the size of the window to define the Window of Interest.
Note: The Window of Interest can be changed, but captured images cannot be viewed.
High Density Window of Interest
Wide Angle Window of Interest