4.5. Calibration
Warning:
The same aperture setting must be used for the left and right camera to avoid degraded image
processing performance. Please validate that the left and right images appear with the same brightness.
After adjusting focus and aperture, all screws must be tightened and the lens caps re-attached.
To change focus and aperture settings of the projector, loosen the three small fixing Phillips screws on the
respective ring of the projector lens, turn the ring to the desired setting and lightly tighten the screws again.
For focus adjustments, the projector should be turned on permanently by setting the Out1 mode to High in
the category DigitalIOControl. For aperture adjustments, Out1 should be set to ExposureAlternateActive and
exposure mode should be set to ‚Auto‘ in the category AcquisitionControl. Perfectly focusing the projector is
not crucial. Slightly blurred projection will not degrade the depth image.
4.5 Calibration
After checking and potentially adjusting the focus, the next step is to check calibration. This step should
never be skipped and is mandatory. Please note that the working range of the 3D stereo camera is pre-
defined and the calibration should be checked for the minimum and maximum working range. Please
(Section
) in case of questions regarding working distance and calibration of the 3D stereo camera.
The manual of the smart 3D camera explains checking and re-calibrating in detail (see
matrix-vision.com/manuals/rc_visard/en/camera_calibration.html#verify-calibration
). The procedure that is
described their can be applied in the same way to the SGM®Producer, by using the
rc_calib
program that is
provided with the producer.
Warning:
It is mandatory to always check calibration after mounting the 3D stereo camera, changing the
focus or aperture. After calibration, also a new hand-eye calibration is required.
MATRIX VISION GmbH
Manual: BVS 3D-RV1
21
Rev: 1.0
Status: Nov 14, 2022
Содержание MATRIX VISION BVS 3D-RV1
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