Possible Scanner Error
-
- I have made 20-30 posts
- Posts: 24
- Joined: Tue Apr 26, 2011 10:14 am
- 12
- Full Name: ed james
- Company Details: Plan-London Ltd
- Company Position Title: Director
- Country: UK
- Linkedin Profile: Yes
Possible Scanner Error
Hi All,
I think we have an error with our Faro M70 scanner. We have had it since February, however we were looking at a preview image and noted a jump in the middle of the picture. We just thought it was how the image was generated, however when we looked at the scan data for that scan it looks like there is a jump/overlap within a single scan. Please see image attached.
Has anyone ever had this before or know what it might be?
Thanks for your help.
I think we have an error with our Faro M70 scanner. We have had it since February, however we were looking at a preview image and noted a jump in the middle of the picture. We just thought it was how the image was generated, however when we looked at the scan data for that scan it looks like there is a jump/overlap within a single scan. Please see image attached.
Has anyone ever had this before or know what it might be?
Thanks for your help.
You do not have the required permissions to view the files attached to this post.
-
- I have made 50-60 posts
- Posts: 55
- Joined: Fri Apr 25, 2014 12:53 pm
- 9
- Full Name: Jason Sturniolo
- Company Details: Architectural Firm
- Company Position Title: BIM Manager
- Country: USA
- Has thanked: 5 times
- Been thanked: 3 times
Re: Possible Scanner Error
Your images are small, I had to zoom in. Is the area highlighted the jump you are referring to?
That looks like the merge point for the scan. Typically if they are too large you will need to get the scanner calibrated.
That looks like the merge point for the scan. Typically if they are too large you will need to get the scanner calibrated.
You do not have the required permissions to view the files attached to this post.
- ARGAS
- I have made 70-80 posts
- Posts: 74
- Joined: Sun Jan 24, 2016 7:53 pm
- 8
- Full Name: Karol Argasinski
- Company Details: BIMfaktoria
- Company Position Title: BIM 3D Scanning
- Country: Poland
- Skype Name: karolus44
- Linkedin Profile: Yes
- Location: Warsaw
- Has thanked: 6 times
- Been thanked: 4 times
- Contact:
Re: Possible Scanner Error
I have S70 and I know what you are talking about, but - when I am connecting scans it moving back on a good position after several seconds when scan is loaded.
--
BIMfaktoria - delivering pointclouds and SCAN2BIM models.
http://www.bimfaktoria.pl/
https://www.facebook.com/BIMfaktoria
instagram: bimfaktoria
BIMfaktoria - delivering pointclouds and SCAN2BIM models.
http://www.bimfaktoria.pl/
https://www.facebook.com/BIMfaktoria
instagram: bimfaktoria
-
- I have made 20-30 posts
- Posts: 24
- Joined: Tue Apr 26, 2011 10:14 am
- 12
- Full Name: ed james
- Company Details: Plan-London Ltd
- Company Position Title: Director
- Country: UK
- Linkedin Profile: Yes
Re: Possible Scanner Error
Hi,
Yes that is the area as you've outlined. On external scans 20-30m you can see it more than some of the internal room scans we've been doing. Do you think it just needs re-calibrating?
Yes that is the area as you've outlined. On external scans 20-30m you can see it more than some of the internal room scans we've been doing. Do you think it just needs re-calibrating?
-
- V.I.P Member
- Posts: 125
- Joined: Mon Nov 03, 2014 2:55 pm
- 9
- Full Name: Daniel Pompe
- Company Details: FARO
- Company Position Title: Team Lead Software Engineering
- Country: Germany
- Linkedin Profile: No
- Has thanked: 2 times
- Been thanked: 19 times
Re: Possible Scanner Error
For clarification:
Do you see any misalignment of the points in the 3D view?
If it is just visible in the planar view it is totally fine. The reason is that the scanner turns 180° during capturing. To ensure no gaps between the beginning and the end a little overlap is captured.
Do you see any misalignment of the points in the 3D view?
If it is just visible in the planar view it is totally fine. The reason is that the scanner turns 180° during capturing. To ensure no gaps between the beginning and the end a little overlap is captured.
-
- I have made 20-30 posts
- Posts: 24
- Joined: Tue Apr 26, 2011 10:14 am
- 12
- Full Name: ed james
- Company Details: Plan-London Ltd
- Company Position Title: Director
- Country: UK
- Linkedin Profile: Yes
Re: Possible Scanner Error
Yes we see it in the preview image, planar view and the scan data itself.
I have attached another image of the scan data looking at a ceiling. You can see that there is a jump and also that the data has overlapped.
Cheers
You do not have the required permissions to view the files attached to this post.
-
- I have made 20-30 posts
- Posts: 24
- Joined: Tue Apr 26, 2011 10:14 am
- 12
- Full Name: ed james
- Company Details: Plan-London Ltd
- Company Position Title: Director
- Country: UK
- Linkedin Profile: Yes
Re: Possible Scanner Error
Wrong image!
You do not have the required permissions to view the files attached to this post.
-
- I have made 90-100 posts
- Posts: 97
- Joined: Wed Jul 12, 2017 9:27 pm
- 6
- Full Name: Mika Jahkola
- Company Details: Myymore Oy
- Company Position Title: Managing Director
- Country: Finland
- Linkedin Profile: Yes
- Location: Espoo, Finland
- Has thanked: 19 times
- Been thanked: 22 times
- Contact:
Re: Possible Scanner Error
Does this happen regularly or just once?
An alternative explanation is that you put the tripod in a bad spot and one leg dropped a tiny bit in the middle of a scan.
An alternative explanation is that you put the tripod in a bad spot and one leg dropped a tiny bit in the middle of a scan.
-
- V.I.P Member
- Posts: 199
- Joined: Wed Apr 06, 2016 3:24 pm
- 7
- Full Name: Brian Boehmer
- Company Details: Meridian Eng.
- Company Position Title: LiDAR Technician
- Country: United States
- Linkedin Profile: No
- Has thanked: 14 times
- Been thanked: 5 times
Re: Possible Scanner Error
I would agree here. If this is just in one scan, then the scanner was probably bumped, leg slipped, scanner moved in some way.mikajahkola wrote: ↑Tue Nov 13, 2018 9:45 pm Does this happen regularly or just once?
An alternative explanation is that you put the tripod in a bad spot and one leg dropped a tiny bit in the middle of a scan.
-
- I have made 20-30 posts
- Posts: 24
- Joined: Tue Apr 26, 2011 10:14 am
- 12
- Full Name: ed james
- Company Details: Plan-London Ltd
- Company Position Title: Director
- Country: UK
- Linkedin Profile: Yes
Re: Possible Scanner Error
Hi guys,
unfortunately this isn't a one of. we have looked back at 10 different jobs choosing random scans from those jobs and we have the same issue.
I have spoken to Faro and sent them a file and this is what they have come back with:
"thanks for the scan. I checked it. There is no collimation error (offset in z direction), what means the angle adjustment to overlay the both scan halves did work.
But the scan halves have an offset in X- and y- direction what is probably not repairable by manual adjustment and in addition would not be recommend as it does not solve the issue.
One reason for such a situation can that the scanner was not mounted properly on the tripod and could easily rotate. Then the error image looks exactly the same.
I will forward the scan to our developers for a further analysis and to advise next step."
does that make sense to you guys?
Cheers
unfortunately this isn't a one of. we have looked back at 10 different jobs choosing random scans from those jobs and we have the same issue.
I have spoken to Faro and sent them a file and this is what they have come back with:
"thanks for the scan. I checked it. There is no collimation error (offset in z direction), what means the angle adjustment to overlay the both scan halves did work.
But the scan halves have an offset in X- and y- direction what is probably not repairable by manual adjustment and in addition would not be recommend as it does not solve the issue.
One reason for such a situation can that the scanner was not mounted properly on the tripod and could easily rotate. Then the error image looks exactly the same.
I will forward the scan to our developers for a further analysis and to advise next step."
does that make sense to you guys?
Cheers