Overlapping Image Acquisitions - Basler DART BCON SERIES User Manual

AW00136902000
9.5

Overlapping Image Acquisitions

There are two common ways for the camera to operate:
with "non-overlapped" exposure and

with "overlapped" exposure.

In the non-overlap mode of operation, each time a frame is acquired the camera completes the
entire readout process (exposure of the pixels + readout of the pixel values from the sensor) before
acquisition of the next frame is started. The exposure for a new frame does not overlap the sensor
readout for the previous frame. This situation is illustrated in
trigger width exposure mode.
ExFSTrig
Signal
Frame Acquisition N
Exposure Sensor Readout
Fig. 32: Non-overlapped Exposure and Sensor Readout
In the overlap mode of operation, the exposure of a new frame begins while the camera is still
reading out the sensor data for the previously acquired frame. This situation is illustrated in
Figure 33 with the camera set for the trigger width exposure mode.
ExFSTrig
Signal
Frame Acquisition N
Exposure Sensor Readout
Fig. 33: Overlapped Exposure and Sensor Readout
Basler dart BCON
Frame Acquisition N+1
Exposure Sensor Readout
Time
Frame Acquisition N+1
Exposure Sensor Readout
Frame Acquisition N+2
Exposure
Time
Image Acquisition Control
Figure 32 with the camera set for the
Frame Acquisition N+2
Exposure Sensor Readout
Sensor Readout
Frame Acquisition N+3
Exposure Sensor Readout
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