Increasing The Maximum Allowed Frame Rate - Basler DART BCON SERIES User Manual

AW00136902000
9.7.2

Increasing the Maximum Allowed Frame Rate

If you want to acquire frames at a rate higher than the maximum allowed with the camera's current
settings, you must adjust one or more of the factors that can influence the maximum allowed rate.
Decreasing the height of the region of interest (ROI) can have a significant impact on the

maximum allowed frame rate. If possible in your application, decrease the height of the ROI.
Depending on the sensor, decreasing the width of the ROI may also increase the maximum

allowed frame rate. The impact is lower than the impact of the ROI height, but may still be
noticeable.
If you are using long exposure times or small ROIs, your exposure time may limit the maximum

allowed frame rate. Try using a shorter exposure time and see if the maximum allowed frame
rate increases. You may need to compensate for a lower exposure time by using a brighter
light source or increasing the opening of your lens aperture.
If your camera is equipped with a rolling shutter, use the electronic rolling shutter (ERS) mode
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rather than the global reset release shutter mode. The ERS mode allows overlapping frame
acquisition while the global reset release mode does not. Overlapping frame acquisitions is,
however, necessary for achieving the highest frame rates.
If you are working with exposure time, keep in mind that a very long exposure time
can severely limit the camera's maximum allowed frame rate.
Example: Assume that your camera is set to use a 1/2 second exposure time. In
this case, because each frame acquisition will take at least 1/2 second to be
completed, the camera will only be able to acquire a maximum of two frames per
second.
For more information about
ROI settings, see Section 11.7 on
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the ERS mode, see Section 9.4.2 on
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overlapping image acquisitions, see Section 9.5 on
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Basler dart BCON
page 97.
page 70.
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Image Acquisition Control
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