8.Features
© China Daheng Group, Inc. Beijing Image Vision Technology Branch 83
Table 8-8 MARS-U3 camera bandwidth control
8.5.4. Camera Acquisition Time
The acquisition time of the camera is related to the OffsetY and height of the image ROI. When the OffsetY
and height change in the ROI setting, it will affect the frame period captured by the camera front end, which
will affect the acquisition frame rate.
The formulas are as follows:
MARS-1230-23U3M/C
When the pixel format is Mono8 or BayerRG8, the row period (unit: us):
T
row
=
522
37.5
= 13.92
When the pixel format is Mono12 or BayerRG12, the row period (unit: us):
T
row
=
1044
37.5
= 27.84
The camera
acquisition time (unit: μs)
:
T
acq
= ( 34) ∗ T
row
MARS-1231-32U3M/C
When the pixel format is Mono8 or BayerRG8, the row period (unit: us):
T
row
=
351
37.5
= 9.36
When the pixel format is Mono10 or BayerRG10, the row period (unit: us):
T
row
=
702
37.5
= 18.72
The camera acquisition time (unit: μs):
T
acq
= ( 54) ∗ T
row
8.6. Events
When event notification is set to "on", the camera can generate an "event" and transmit a related event
message to the host whenever a specific situation has occurred. For MARS-U3 series camera, the camera
can generate and transmit events for the following situations:
The camera has ended exposure (ExposureEnd)
An image block is discarded (BlockDiscard)
