Hello there. I’m comparing scans made in laser cross-line and full field modes and there are noticeable streaks on a scanned model after a laser scan (see the pictures). These lines are consistent, persistent and presented on all laser scan outputs. Both scans made with the same point cloud distance (0.15) and same mesh quality (8.0), same distance and same rotation speed.. Am I doing anything wrong, or it is an inevitable ‘feature’ of the laser scan, or hardware defect? Thank you.
Laser scan:
Like Nickluvin said, it is because of missing data. If you fuse and mesh at higher settings / denser than you collected data, the software will have to interpolate missing point and the surface won’t look clean ,neither.
In laser mode I aim for about 9000 frames or more for a clean(er) surface, depending on object size and surface details. I would definitely prefere full-field or even quzo-turntable for this figure.
In laser mode brightness and exposure settings can intensify the lines ,too beause of microreflections.
So, metroX offers different scan modes for different purposes. As you see, full field mode or auto-turntable is better for an object like that, faster and easier.
I’m assuming since you scanned the object with the same distance and rotational speed that you had the scanner on a and the object on the auto-turntable. This is not ideal for laser modes. Try the same scan, with the object on the turntable but with the scanner handheld. By keeping the scanner on a tripod it is not able to scan as consistently everywhere, leading to the streaking you are experiencing.
