Topic: deformation test
I tried to assess scanning deformations that happen going from the center of the table towards the outside of the table. For that I choose a flat object, that is a very small book size 25mm x102mm x 210mm. I covered the book with millimeter paper that is paper covered with smaller 1mm squares and larger bolder 10mm squares. What can be easily perceived in the scan are the 10mm squares. Obviously all lines on the paper are straight. There is a rubber band that keeps the paper onto the book and this also is straight.
Results are shared here https://drive.google.com/open?id=0B8AL6 … lp5OTBpWWc
You'll find:
1 a .ply file with the scan at default high resolution
2. a photo of the object and the scanner
3. the laser test.
4. a snapshot of the scan that is faster to see than the whole scan
You'll see that the lines are not much deformed at a height of about 90 mm from the plate which is the height of the camera with respect to the table plane. But the lines are deformed above and under that height. The more you move from the camera level the more lines are deformed.
This deformation seems very serious since it is vary large. So I wonder if there is a fix. I wonder if my calibration is wrong, but the enclosed test seems ok. Or not?
Also on the lower right part of the snapshot there is a part that for some reason was not scanned at all. But this has nothing to do with deformation I suppose.
Best
Fran