Controlling Image Capture; Trigger Modi - AVT Pike Technical Manual

Controlling image capture

Controlling image capture
Shutter modes
Pipelined
Continuous mode
External trigger
Camera I/O

Trigger modi

Trigger Mode
Trigger_Mode_0
Trigger_Mode_1
Trigger_Mode_15
The cameras support the SHUTTER_MODES specified in IIDC V1.31. For all
models this shutter is a global pipelined shutter; meaning that all pixels are
exposed to the light at the same moment and for the same time span.
Pipelined means that the shutter for a new image can already happen, while
the preceding image is transmitted.
In continuous modes the shutter is opened shortly before the vertical reset
happens, thus acting in a frame-synchronous way.
Combined with an external trigger, it becomes asynchronous in the sense
that it occurs whenever the external trigger occurs. Individual images are
recorded when an external trigger impulse is present. This ensures that even
fast moving objects can be grabbed with no image lag and with minimal
image blur.
The external trigger is fed as a TTL signal through Pin 4 of the camera
I/O connector.
Pike cameras support IIDC conforming Trigger_Mode_0 and Trigger_Mode_1
and special Trigger_Mode_15 (bulk trigger).
also known as
Edge mode
Level mode
Programmable mode
Table 53: Trigger modi
Description
Sets the shutter time according to the value set in
the shutter (or extended shutter) register
Sets the shutter time according to the active low
time of the pulse applied (or active high time in
the case of an inverting input)
Is a bulk trigger, combining one external trigger
event with continuous or one-shot or multi-shot
internal trigger
PIKE Technical Manual V4.1.0
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