Point Grey Flea3 USB 3.0 Technical Reference 4 Input/Output Control
4.3.1 Synchronizing Image Capture with an Output Trigger or Strobe
The following diagrams illustrate the timing of an output trigger, such as a strobe, with both a global and a rolling
shutter in free-running mode. Regardless of the type of shutter on the camera, the output trigger is synchronized to
the shutter time of line 1 in each frame.
With a global shutter camera all lines of a frame are exposed at the same time. This means that the output trigger for a
frame starts after the previous frame has completed exposure.
With a rolling shutter camera the lines of a frame are exposed in a staggered sequence. This means that the output
trigger for a frame may start before the previous frame has completed exposure.
Revised 9/27/2012
Copyright ©2011-2012 Point Grey Research Inc.
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