
Image Acquisition Control
AW00136902000
70
Basler dart BCON
9.4.2
Rolling Shutter
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
Figure 30
).
Camera Model
Rolling Shutter Available?
daA1280-54bm/bc
daA1600-60bm/bc
No
daA2500-14bm/bc
Yes
Table 28: Rolling Shutter Availability
= line exposure
= line readout
Frame Start
Triggered
temporal offset
Fig. 30: Rolling Shutter in the ERS Mode
Line 1
Line 2
Line 4
Line 3
Line 5
Line 6
Line 8
Line 7
Line 9
Line 10
Line 11
Line N-2
Line N
Line N-1