Pco Edge 3.1, Руководство пользователя

Страница: 25 / 59

25
7.3 REGION OF INTEREST (ROI)
ROI (Region of Interest) selects a part of the sensor to be read out.
Vertical ROI:
In order to speed up the frame rate and to reduce the
amount of image data set the ROI symmetrical to the horizontal
center line.
Horizontal ROI: In order to reduce the amount of image data set a
horizontal ROI. A horizontal ROI will not change the frame rate.
For a detailed explanation see the pco.camware manual
ROI table
Camera
ROI
horizontal
steps
ROI
vertical
steps
Mini-
mum
ROI
Vert.
symm.
ROI
pco.edge 3.1 USB 3.0 4 1 64x16 no
pco.edge 4.2 LT USB 3.0 4 1 64x16 no
pco.edge 4.2 USB 3.0 4 1 64x16 no
pco.edge 4.2 Camera Link 20 2 40x16 yes
pco.edge 4.2
Camera Link HS
16 1 64x16 no
pco.edge 5.5 USB 3.0 4 1 64x16 no
pco.edge 5.5 Camera Link 160 2 160x16 yes
pco.edge 5.5 Camera Link HS 16 1 64x16 no
Software based ROI (Soft-ROI) (only Camera Link interface)
Calculates the Region of Interest via software. The resolution of
pco.edge cameras with Camera Link interface can be adjusted in
steps of 1 – 4 pixels.
Since the readout architecture of Camera Link cameras is not able to
address single pixels, this downsizing is done by software.
If you work with pco.camware or Device Adapters (µManager,
Labview…) or with pco.sdk, the Soft-ROI is disabled by default. For
further information, see the SDK description.
ROI table with Soft-ROI Option enabled (only Camera Link interface)
pco.edge 4.2 Camera Link
1 1 40x16 no
pco.edge 5.5
Camera Link
4 1 160x16 no
Open regedit to control Soft-ROI: under HKey-
Current-User/Software/PCO/ create a DWORD value
with the name SoftROI for each camera. Set this value
to 1 to enable Soft-ROI. Remove or set this value to 0
to disable Soft-ROI by default. Keep in mind that
unsymmetrical ROI decreases FPS. Above table
shows values for Soft-ROI enabled.