Rolling Shutter - Basler DART BCON SERIES User Manual

Image Acquisition Control
9.4.2

Rolling Shutter

Camera Model
daA1280-54bm/bc
daA1600-60bm/bc
daA2500-14bm/bc
Table 28: Rolling Shutter Availability
The rolling shutter is used to control the start and stop of sensor exposure. The rolling shutter used
in these cameras has two operating modes:
electronic rolling shutter mode (ERS mode) and

global reset release mode (GRR mode).

Electronic Rolling Shutter Mode (ERS)
When the shutter is in the electronic rolling shutter operating mode, it exposes and reads out the
pixel lines with a temporal offset from one line to the next. When frame start is triggered, the camera
resets line one of the ROI and begins exposing line one,

resets line two a short time later (= temporal offset) and begins exposing line two,

resets line three a short time later than line two (= additional temporal offset) and begins

exposing line three.
And so on until the bottom line of pixels is reached (see
Frame Start
Triggered
Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7
Line 8
Line 9
Line 10
Line 11
temporal offset
Line N-2
Line N-1
Line N
Fig. 30: Rolling Shutter in the ERS Mode
70
Rolling Shutter Available?
No
Yes
Figure 30).
= line exposure
= line readout
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Basler dart BCON