DAVID SLS-2 Bedienungsanleitung PDF herunterladen (Seite 10)

5. Click “Calibrate” in order to calibrate the whole scanner.

In this step the software will first measures the position, orientation, focal length and distortion

coefficients of the camera. Then it will project a pattern sequence in order to determine the same

optical properties of the projector. If Texturing is not switched off, it will also project different colors

to perform a white balance measurement.

After a successful calibration, DAVID will project a checkerboard pattern, whose corner points should fall

exactly onto the calibration markers.

Your scanner is now calibrated. This refers to the position and orientation of camera and projector relative to

each other, and the focus and brightness settings. You may move, rotate and tilt the scanner as a whole, and

you can close and restart the DAVID software, without losing the calibration. You may also change the

Projector Brightness setting in order to adjust image brightness (red sine curves) to the scanned object.

However, if you rotate camera or projector with respect to each other, or change the focus (e.g. in order to

scan much smaller or larger objects), you will have to repeat the whole calibration procedure.

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DAVID SLS-2 Bedienungsanleitung Seite 10