03-27-2017 07:15 AM
I'm having trouble with waves, slicing, patterns in my scans I have tried all the recommended fixes I have found. Any ideas? I'm using a new standard David SLS-3 with V5.1 software and a second David camera. I'm new to David and currently use photogrammetry and IR rangefinder systems to do my captures.
To solve the wave issue I have tried 3 different computers, 2 different projectors, tried all combinations of projector frequency, camera frame rates, camera exposure, have no problems with calibration.
The scans look mostly fine with the texture on this phenomenon is seems more pronounced on curved objects and sometimes at certain light levels.
thanks, any help greatly appreciated
04-18-2017 02:22 AM
Here in some posts there were mentioned that there are no lines in scans with the original david/hp hardware. It is not so at all: look to the picture from the HP 3d Scan product page:
I've marked lines here.
05-23-2017 08:47 AM
I do my 3D scans in a dark room but have tried many different lighting conditions.
i have tried different exposures and video clipping is not a contributing factor.
I have tried many different advanced settings.
Minwavelength setting is the only one that has any noticable effect on the waves.
Below: Scans, different settings for MinWaveLength LtoR 12, 24, 48.
very frustrated, using this scanner requires too much work to clean up the scans to be useful for my needs. Wish it worked because photogramity has many challenges as well.
05-23-2017 10:53 AM - edited 05-23-2017 10:55 AM
There are numerous threads in the old David forum devoted to waves in scans.