Dalsa Piranha4 User Manual page 73

In order to initiate operation of the AOI once setup:
1. The AOI mode must be changed to Active.
2. Be sure to set the frame grabber image width to the sum of all AOI widths set up in the camera.
Custom AOI Rules
1. The sensor has pixels 0 to 8191.
2. Whether mirroring is on or off, 0 is the leftmost pixel.
3. Whether mirroring is on or off, AOI 1 is readout first.
4. In normal mode, AOI 1 is closest to the sensor's left edge.
5. In mirror mode, AOI 1 is closest to the sensor's right edge.
Base, Medium and Full Modes
1. The total number of pixels within each AOI must be a multiple of 8 and must be greater than or
equal to 40.
2. In normal mode, the first pixel of each AOI (AOI left edge) must have the location 8i, where i = 0, 1, 2
.., 1023 (i.e. 8, 960, 7680 are allowed, 12 is not allowed).
3. In mirror mode, the first pixel of each AOI (AOI right edge) must have the location 8i + 7, where i =
0,1,2 .., 1023 (i.e. 7, 15, 4095 are allowed, 8 is not allowed).
Once all AOI are set
up change to active.