Good resolution for scanning warehouse and distance between scans

Discuss all FARO related issues here.
Scott
V.I.P Member
V.I.P Member
Posts: 706
Joined: Tue Mar 29, 2011 7:39 pm
Full Name: Scott Page
Company Details: Scott Page Design- Architectural service
Company Position Title: Owner
Country: USA
Linkedin Profile: No

Re: Good resolution for scanning warehouse and distance between scans

Post by Scott » Tue Feb 26, 2019 8:31 pm

Tgl_Nan wrote:
Tue Feb 26, 2019 5:18 pm
Tip: when doing your first scan - which will be used as reference during the preprocess in Scene - orient the scanner so it is perpendicular or parallel to a building axis. This way, the top view will be correctly oriented after the first registration.
Do all the C2C scans with this orientation. The top view placement will be much easier because you won't have to rotate the scans in the correspondence view.
Interesting tip. What about the internal compass? Do you switch that off?

Tgl_Nan
V.I.P Member
V.I.P Member
Posts: 380
Joined: Wed Oct 05, 2011 10:14 am
Full Name: Yan Koch
Company Details: TagLabs
Company Position Title: President
Country: France
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by Tgl_Nan » Tue Feb 26, 2019 10:17 pm

Hi Scott,

I turn the compass OFF. Same for the altimeter. When I bought my Focus 120 in 2011, the only sensor was the inclinometer. Then Faro added a kit with the compass + altimeter. They were supposed to help registration, but at that time they generated more issues. Scene version was 5.0 .
I never used these sensors again and only used the inclinometer. The compass is very sensitive and provides wrong values as soon as you're closed to steel structures. The altimeter value varies a lot depending on the wheather.
Kind regards,

Yan Koch
yankoch@taglabs.fr

Scott
V.I.P Member
V.I.P Member
Posts: 706
Joined: Tue Mar 29, 2011 7:39 pm
Full Name: Scott Page
Company Details: Scott Page Design- Architectural service
Company Position Title: Owner
Country: USA
Linkedin Profile: No

Re: Good resolution for scanning warehouse and distance between scans

Post by Scott » Wed Feb 27, 2019 12:29 am

Tgl_Nan wrote:
Tue Feb 26, 2019 10:17 pm
Hi Scott,

I turn the compass OFF. Same for the altimeter. When I bought my Focus 120 in 2011, the only sensor was the inclinometer. Then Faro added a kit with the compass + altimeter. They were supposed to help registration, but at that time they generated more issues. Scene version was 5.0 .
I never used these sensors again and only used the inclinometer. The compass is very sensitive and provides wrong values as soon as you're closed to steel structures. The altimeter value varies a lot depending on the weather.
I'll give it a shot. I knew that the internal compass could be off by as much as 15º, but it is a useful deliverable for anyone needing a rough idea of 'north', to use in a location map. I grab a screenshot of the compass adjusted plan view, when it's first registered, then orient the plan to fit the printed sheet layout. Both orientations are useful for what I do. Thanks again for the tip -there is always something new to learn!

User avatar
Jfout
I have made 40-50 posts
I have made 40-50 posts
Posts: 49
Joined: Mon Jan 28, 2019 2:11 pm
Full Name: John Fout
Company Details: Russell Construction
Company Position Title: Russell Construction
Country: United States
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by Jfout » Mon Mar 04, 2019 9:01 pm

Tgl_Nan wrote:
Tue Feb 26, 2019 5:18 pm


In addition to the set of 6 spheres, you can also build your own spheres.

Here's a guide:
https://drive.google.com/open?id=1S_IWq ... 2xZlZGKznl
thanks for the info. not sure where to get the actual spheres themselves though. looked around a bit prior to purchasing but nothing seemed to be close.
John Fout
VDC Manager
Russell

modeling/animation/scanning/drones. the four pillars of life. :ugeek:

User avatar
Felix_the_Cat
Forum Supporter
Forum Supporter
Posts: 113
Joined: Thu Jun 09, 2016 5:44 pm
Full Name: Felix
Company Details: Lockheed Martin
Company Position Title: Senior Member Engineering Staff
Country: USA

Re: Good resolution for scanning warehouse and distance between scans

Post by Felix_the_Cat » Mon Mar 04, 2019 9:38 pm

landmeterbeuckx wrote:
Tgl_Nan wrote:
Tue Feb 26, 2019 5:18 pm

Tip: when doing your first scan - which will be used as reference during the preprocess in Scene - orient the scanner so it is perpendicular or parallel to a building axis. This way, the top view will be correctly oriented after the first registration.
Do all the C2C scans with this orientation. The top view placement will be much easier because you won't have to rotate the scans in the correspondence view.
Do you mean like this Yan? Excellent tip!
Image
If you do it like that, your loop closing and therefore all your collimating errors will be squarely in the center of what you are trying to scan.

Rotate 90 degrees so it starts and finishes off target.


Sent from my iPhone using Tapatalk

User avatar
Jfout
I have made 40-50 posts
I have made 40-50 posts
Posts: 49
Joined: Mon Jan 28, 2019 2:11 pm
Full Name: John Fout
Company Details: Russell Construction
Company Position Title: Russell Construction
Country: United States
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by Jfout » Wed Mar 13, 2019 11:45 am

landmeterbeuckx wrote:
Tue Feb 26, 2019 2:49 pm
use 12 at least. You're not going to cut it with 6.

Do the outside with spheres, the inside c2c and scan some spheres through the door and windows.

No need for spheres inside. It's a pain in the *ss.
can confirm. spheres inside is a serious pain in the arse. especially an industrial processing facility. most pvc pipe elbows are detected as a sphere in scene.had to run a test with spheres before i use them live on an exterior project.
John Fout
VDC Manager
Russell

modeling/animation/scanning/drones. the four pillars of life. :ugeek:

Tgl_Nan
V.I.P Member
V.I.P Member
Posts: 380
Joined: Wed Oct 05, 2011 10:14 am
Full Name: Yan Koch
Company Details: TagLabs
Company Position Title: President
Country: France
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by Tgl_Nan » Wed Mar 13, 2019 12:14 pm

Well, it might be out of this topic now, but I'm still a defender of sphere registration.
It's much faster and more accurate. Loop closing is better.
To save time, I generally combine targets and c2c. I create a main path (interior and exterior) using targets, and then I do targetless scans in narrow areas.

I only find benefits using this method: I don't spend too much time on site placing targets, and my registration is really fast and accurate.
I manage to reach 100 scans / day, and everything is registered and cleaned within one day.
Kind regards,

Yan Koch
yankoch@taglabs.fr

User avatar
Jfout
I have made 40-50 posts
I have made 40-50 posts
Posts: 49
Joined: Mon Jan 28, 2019 2:11 pm
Full Name: John Fout
Company Details: Russell Construction
Company Position Title: Russell Construction
Country: United States
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by Jfout » Wed Mar 13, 2019 12:35 pm

in some cases where it didnt recognize 100 elbows as spheres the registration was quick for sure.

i think the spheres will work great for exterior construction sites where i have no references.

setup and moving the spheres really isnt very time consuming like i thought it would be.
John Fout
VDC Manager
Russell

modeling/animation/scanning/drones. the four pillars of life. :ugeek:

Tgl_Nan
V.I.P Member
V.I.P Member
Posts: 380
Joined: Wed Oct 05, 2011 10:14 am
Full Name: Yan Koch
Company Details: TagLabs
Company Position Title: President
Country: France
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by Tgl_Nan » Wed Mar 13, 2019 2:56 pm

Since we've developed our bad sphere remover, we don't have to manually clean the spheres detected on elbows, ball valves, fire extinguishers and helmets anymore!
Only the "official" spheres remain.
:-)
Kind regards,

Yan Koch
yankoch@taglabs.fr

User avatar
landmeterbeuckx
V.I.P Member
V.I.P Member
Posts: 263
Joined: Tue May 01, 2012 5:19 pm
Full Name: Lieven Beuckx
Company Details: Studiebureau Beuckx
Company Position Title: Owner
Country: Belgium
Linkedin Profile: Yes

Re: Good resolution for scanning warehouse and distance between scans

Post by landmeterbeuckx » Wed Mar 13, 2019 2:58 pm

Jfout wrote:
Wed Mar 13, 2019 12:35 pm

setup and moving the spheres really isnt very time consuming like i thought it would be.
that's where i have to disagree. You always have to think forward, running around with spheres. Especially in an occupied environment it's tedious, people don't know what they are and start to fiddle them about.

Spheres for connecting outside to inside and connecting levels : ok but inside c2c
LSBbvba
Surveying services - 3D Laserscanning
Tel : +3211661621
www.landmeter-beuckx.be
info@landmeter-beuckx.be

Return to “FARO”