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4 Image Acquisition
4.2
Acquisition Control
A
c q u i s i t i o n C o n t r o l
A c q u i s i t i o n S t a r t T r i g g e r
A c q u i s i t i o n E n d T r i g g e r
A c q u i s i t i o n T r i g g e r W
a i t
A c q u i s i t i o n S t a r t
A c q u i s i t i o n E n d
A c q u i s i t i o n T r i g g e r
A
c q u i s i t i o n S t a r t ( )
A c q u i s i t i o n E n d ( )
A c q u i s i t i o n A c t i v e
Figure 4.2: Acquisition Control Block
4.2.1
Acquisition Start and Stop Commands, Acquisition Mode and Acquisition
Frame Count
The camera can only capture frames when the acquisition is started. The acquisition start
command, which is executed by the software, starts the acquisition and prepares the camera to
acquire frames. The acquisition is stopped, when the acquisition stop command is executed or -
depending on the acquisition mode parameter - a certain number of frames is captured.
Following acquisition mode parameters are available:
Acquisition Mode = Single Frame
When the acquisition is started, the camera stops the
acquisition automatically as soon as one frame has been captured. To capture another
frame, the acquisition start command needs to be performed again.
Acquisition Mode = Multi Frame
When the acquisition is started the camera stops the
acquisition automatically after a certain number of frames, which are defined by
acquisition frame count parameter, or when the acquisition stop command is executed.
Acquisition Mode = Continuous Frame
When the acquisition is started the camera captures
images continuously until the acquisition stop command is executed.
4.2.2
Acquisition Frame Rate and Acquisition Frame Rate Enable
With frame start trigger mode=off (see Section 4.3.1) and frame burst start trigger mode=off
(see Section 4.3.2), and when exposure mode is set to "timed" (see Section 4.4.1), the camera
generates frame start triggers internally according to the acquisition frame rate enable and
acquisition frame rate configuration:
Acquisition Frame Rate Enable = off
The camera runs in the "free-running" mode. It means
frame start triggers are generated internally as soon as the camera is ready to start a new
image capture. The frame rate is defined by the exposure time and the ROI settings (see
Chapter 9).
Acquisition Frame Rate Enable = on
The camera generates frame start triggers internally
according to the acquisition frame rate configuration. See Chapter 9 for more
information about the range of supported frame rates.
Fig. 4.3 shows the procedure of a capture of N frames. The modes of acquisition start trigger,
frame start trigger and frame burst start trigger is set to off and the exposure mode is timed.
Once an acquisition start command has been executed, the camera starts capturing frames
until the acquisition stop command is received.
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MAN078 12/2018 V1.1
Содержание MV0 CMOSIS Series
Страница 10: ...1 Preface 10 of 111 MAN078 12 2018 V1 1...
Страница 14: ...3 Product Specification Figure 3 1 Photonfocus MV0 CMOSIS GigE camera series 14 of 111 MAN078 12 2018 V1 1...
Страница 38: ...4 Image Acquisition 38 of 111 MAN078 12 2018 V1 1...
Страница 52: ...8 Image Format Control 52 of 111 MAN078 12 2018 V1 1...
Страница 78: ...12 Precautions 78 of 111 MAN078 12 2018 V1 1...
Страница 88: ...14 Mechanical Considerations 88 of 111 MAN078 12 2018 V1 1...
Страница 90: ...15 Troubleshooting 90 of 111 MAN078 12 2018 V1 1...
Страница 96: ...18 Support and Repair 96 of 111 MAN078 12 2018 V1 1...
Страница 98: ...19 References 98 of 111 MAN078 12 2018 V1 1...