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compare scans
Posted: Tue Dec 03, 2013 2:00 pm
by Ingsayyad
I need to comapre two scans.
I 'm getting strange results. Infact there shouldn't be any difference between these scans.
- Why I 'm getting rings around scanner stand positions.
What is best way to compare these scans.
How can I uploadscans files *.bin (30MB) for others on this forum to test it.
Re: compare scans
Posted: Tue Dec 10, 2013 8:12 am
by daniel
Interesting.
Looking at the shape of these rings, I doubt this is a bug or a numerical artifact. Maybe something in your measurement process?
However I'm very interested in the dataset: you should share the files with Google Drive or Dropbox if you have an account. Otherwise I can give you an ftp account on CC's website.
Re: compare scans
Posted: Fri Dec 27, 2013 11:22 am
by Ingsayyad
How can I share it with googledrive. I need ur email or????????????. Data set is in my googledrive.
Re: compare scans
Posted: Sat Dec 28, 2013 10:43 pm
by daniel
In Google drive, just right click on the file and select Share > Share... (you can either change the rights to public or invite specific people with their emails).
Re: compare scans
Posted: Tue Dec 31, 2013 5:18 pm
by Ingsayyad
Re: compare scans
Posted: Thu Jan 02, 2014 1:09 pm
by daniel
Thanks for the dataset.
And I confirm that the ripples are already present in the data (you can see them directly after loading the data, even without computing any distances):
- cc_pktwolke.jpg (205.58 KiB) Viewed 4336 times
When you make a slice of one of the cloud and multiply the z scale by 10 you can clearly see the oscillations:
- Zoom x10
- cc_pktwolke_slicex10.jpg (19.13 KiB) Viewed 4336 times
It must come from the measurement process. However I won't be able to help you much more as I'm not an expert in the scanning process. Maybe you could ask to the manufacturer?