The Piranha XL XDR Camera
•
33
Figure 8: 2x2 Binning
For the Piranha XL camera, the default binning value is 1 x 1.
Note: The Binning parameters can only be changed when image transfer to the frame grabber is
stopped. Refer to the “Acquisition and Transfer Control’ category in the appendix for details on
stopping and starting the acquisition.
Using Area of Interest to Reduce Image Data & Enhance Performance
See the section Image Format Control Category in Appendix A for GenICam features associated
with this section and how to use them
Relevant Features: AOI Port Selector, AOI Count, AOI Selector
,
AOI Offset, AOI Width
If the camera’s field of view includes areas that are not needed for inspection (also refer to the
description in the 0 Flat Field Calibration Region of Interest), then the user may want to ignore this
superfluous image data. Eliminating unwanted image data that is present in the camera’s field of
view reduces the amount of information the host computer needs to process. It may also result in
an increase to the maximum allowable line rate when using 12 bit output data.
Different Areas of Interest can also be selected to be output on the Master and Salve ports. This
would allow the camera to be connected to a dual port frame grabber or two frame grabbers,
possibly in two PC’s. Using this configuration may eliminate frame grabber and/or PC bandwidth
issues allowing the camera to achieve its maximum line rate.
The Piranha XL camera can accommodate up to four Areas of Interest (AOI) for each of the Master
& Slave ports. Image data outside the AOI are discarded. Each AOI is user selected and its pixel
boundaries defined. The camera will assemble all individual AOI into one contiguous image line
with a width equal to the sum of the individual AOI(‘s). The frame grabber will need to be adjusted
to accommodate the smaller overall image width. As the host computer defined the size of each
individual AOI, it will be able to extract and process each individual AOI from the one larger image.
Steps to Setup Area of Interest
1.
Plan your AOI's
2.
Stop acquisition
3.
Select the Master or Slave port
4.
Set the number of AOI's
5.
Select the first AOI and set the offset and width
6.
If the other AOI's are large you may need to select them first and reduce their width's
7.
Repeat for each AOI in turn
