Photon Focus MV1-D2048-3D03 Series, User Manual, Page: 52 / 131

5 Functionality
5.2.16 Moving ROI
Overview
The Moving ROI feature automatically centers the ROI vertically based on the detected 3D
coordinates.This allows to set a smaller region of interest (ROI) and therefore achieve a bigger
frame rate.
The Moving ROI feature is specially suitable for scanning of flast surfaces.
The Moving ROI feature is not available in all camera revisions (see Appendix B).
The Moving ROI feature is available in 2D&3D mode and in 3DOnly mode.
The Moving ROI is not available in High Speed mode
The Moving ROI feature is available with one peak (peak 0) only.
No camera property should be read or written while aquisition is running and
moving ROI is enabled. Stop acquisition to access camera properties.
Mode of operation
The mode of operation of the moving ROI featue is shown in Fig. 5.21. The vertical start
position of the 3D-ROI is automatically adjusted so that the detected laser line lies in the center
of the ROI.
The height of the 3D-ROI (property
Peak0_3DH
) must be big enough to contain the laser line.
The 3D ROI height must have enough margin to contain the movement of the laser line from
one profile to the next profile.
The vertical axis in Fig. 5.21 is the vertical position (ROI-Y) on the image sensor. The two blue
lines mark the boundaries of the moving ROI area (laser finder window, specified by the
properties
Peak0_MovingROIRangeY and Peak0_MovingROIRangeH ). The red rectangle marks the
3D-ROI. Note how the window moves to keep the laser line inside the window. In image 0 the
detected laser line lies in the lower part of the image. The position of the 3D-ROI is then
moved downward so that the laser line lies again in the middle of the ROI.
Absolute coordinates (see Section 5.2.14) are enabled if moving ROI is enabled.
52 of 131 MAN052 12/2018 V3.2