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Surface roughness and low resolution
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Topic: Surface roughness and low resolution (Read 8200 times)
prime
Newbie
Posts: 6
Surface roughness and low resolution
«
on:
August 26, 2015, 05:17:18 AM »
hollo
I tried again and again but I can't get good result
Please look at attached images
I can't recognized object
what is the problem with me?
this is information of shooting
1) Camera : Cannon 550D DSLR
2) ISO : 100 or 200 or 400 (I changed ISO but the result almost same)
3) F : 5.6
4) object to camera distance : 30~50cm
5) catched images : 50~80 shoots
information of photoscan work flow
1) aligning photos
- accuracy : medium (I tried "high" but the result does not improved)
- pair preselection : disable
- point limit : don't care
2) builing dense point cloud
- medium(I tried "high" but the result does not improved)
3) building mesh
- medium(I tried "high" but the result does not improved)
please look at attached image
surface roughness is very high with poor resolution
please help me!
Logged
prime
Newbie
Posts: 6
please help me!
«
Reply #1 on:
August 26, 2015, 05:25:07 AM »
hollo
I tried again and again but I can't get good result
Please look at attached images
I can't recognized object
what is the problem with me?
this is information of shooting
1) Camera : Cannon 550D DSLR
2) ISO : 100 or 200 or 400 (I changed ISO but the result almost same)
3) F : 5.6
4) object to camera distance : 30~50cm
5) catched images : 50~80 shoots
information of photoscan work flow
1) aligning photos
- accuracy : medium (I tried "high" but the result does not improved)
- pair preselection : disable
- point limit : don't care
2) builing dense point cloud
- medium(I tried "high" but the result does not improved)
3) building mesh
- medium(I tried "high" but the result does not improved)
please look at attached image
surface roughness is very high with poor resolution
please help me!
Logged
sastun1962
Newbie
Posts: 36
Re: Surface roughness and low resolution
«
Reply #2 on:
August 26, 2015, 10:13:49 AM »
Hi prime,
have you try with an object not replective like this? I think that the problem are due to the reflections.
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dimaego
Newbie
Posts: 13
Re: please help me!
«
Reply #3 on:
August 26, 2015, 10:34:52 AM »
can you upload ur point and dense cloud?
trying selecting all ur photos in photoscan, right click and Estimate image quality. what are the results?
u should leave ISO at 100
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dimaego
Newbie
Posts: 13
Re: please help me!
«
Reply #4 on:
August 26, 2015, 10:36:54 AM »
also what focal length u using? the car looks a bit shiny to me, which can cause problems aligning the photos
Logged
prime
Newbie
Posts: 6
Re: please help me!
«
Reply #5 on:
August 26, 2015, 11:11:35 AM »
thank you dimaego!
actually I think lack of lighting
I detected my photo is not good quality
when I zoom out my photo there are poor quality
Is it help to me setting up lighting?
thank you very much dimaego!
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prime
Newbie
Posts: 6
Re: Surface roughness and low resolution
«
Reply #6 on:
August 26, 2015, 11:14:54 AM »
dear sastun1962
thank you for your suggest!
I try again with another item!
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Alexey Pasumansky
Agisoft Technical Support
Hero Member
Posts: 15160
Re: please help me!
«
Reply #7 on:
August 26, 2015, 11:18:01 AM »
Hello prime,
Usually plastic untextured surfaces are problematic for reconstruction, as almost no feature points can be detected there.
Logged
Best regards,
Alexey Pasumansky,
Agisoft LLC
Ingsayyad
Jr. Member
Posts: 89
Re: Surface roughness and low resolution
«
Reply #8 on:
August 26, 2015, 11:21:49 AM »
If you want to you the same model, use some projection pattern or spray it etc. The disadvantage is that you have problem with texture.
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