Dalsa Genie Nano-CXP Series, User Manual

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Genie Nano-CXP Series™ Operational Reference
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Vertical Cropping (Partial Scan)
The Height and Vertical Offset features, used for vertical cropping, reduce the number of video
lines grabbed for a frame. By not scanning the full height of the sensor, the maximum possible
acquisition frame rate is proportionately increased, up to the model maximum.
The following figure is an example of a partial scan acquisition using both Height and Vertical Offset
controls. The Vertical Offset feature defines at what line number from the sensor origin to acquire
the image. The Height feature defines the number of lines to acquire (to a maximum of the
remaining frame height). Note that only the partial scan image (ROI) is transmitted to the host
computer.
Partial Scan Illustration
Maximum Frame Rate Examples (Nano-CXP M/C 5100)
Note: Fast Readout Mode will have low DN Fixed Pattern column artifacts as described here
OnSemi Sensor Fast Readout Mode.
Vertical Lines Acquired
(inc=16)
Standard Readout Mode
(fps)
Fast Readout Mode
(fps)
5120 46.89 80.15
3840 62.45 106.6
2560 93.45 159.3
1280 185.5 315.2
640 365.8 616.5
320 711.7 1182
160 1349 2178
80 2444 3773
48 3623 5347
32 4761 6711
16 6993 9090