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Author Topic: Help ! can't create complete mesh.  (Read 7243 times)

agga

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Help ! can't create complete mesh.
« on: May 12, 2014, 08:46:02 PM »
Hi,

I have 59 5MP camera's for a (half) body scan.
Foto settings: f/2.9, ISO 100, 1/10sec.
In the workflow I add the folder. (camera calibration: 0.0014 x 0.0014)
All camera's align ok!

I create a medium dense cloud. (also tried high and ultra high)

And when I then build the mesh I always get missing parts in the mesh... sometimes the hair, sometimes the face, somtimes the back... but always a different part. I let people always face the same side... camera positions are also fixed.

What am I doing wrong ? Why can't I create a nice mesh?
Can someone help me here ? getting desperate...


Exhale

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Re: Help ! can't create complete mesh.
« Reply #1 on: May 12, 2014, 10:05:13 PM »
Hi ,

Can you upload the photos and pm me the link. So I can test it on my system and let you know about the issue.

regards

agga

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Re: Help ! can't create complete mesh.
« Reply #2 on: May 12, 2014, 10:54:21 PM »
Hi Exhale,

sended you the link in a pm.
Have a lot of other examples...

:(

Wishgranter

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Re: Help ! can't create complete mesh.
« Reply #3 on: May 12, 2014, 11:49:24 PM »
Hi Aga, if can send me the link too ( PM ), will digg intro that. what precise camera model you use ? its something from medium format camera ? 

59 x 5 Mpix images. have read it again.... 

« Last Edit: May 13, 2014, 12:17:30 AM by Wishgranter »
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fengkan

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Re: Help ! can't create complete mesh.
« Reply #4 on: May 13, 2014, 04:42:48 AM »
I am justing wondering are you using raspberry pi?

agga

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Re: Help ! can't create complete mesh.
« Reply #5 on: May 13, 2014, 12:29:37 PM »
yes, raspberry's.

cheap, network attached, easely programmable...

Tyler J

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Re: Help ! can't create complete mesh.
« Reply #6 on: May 13, 2014, 02:46:56 PM »
What camera are you using (just out of curiosity)

agga

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Re: Help ! can't create complete mesh.
« Reply #7 on: May 13, 2014, 03:04:07 PM »
the camera is a Omnivision OV5647 (http://www.ovt.com/products/sensor.php?id=66)

fengkan

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Re: Help ! can't create complete mesh.
« Reply #8 on: May 13, 2014, 03:48:55 PM »
I also tried 20 rpi cameras for head scanning, but the result is not satisfying.
What parameters do you use to take photos?

agga

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Re: Help ! can't create complete mesh.
« Reply #9 on: May 13, 2014, 08:16:12 PM »
pretty default settings; -t 1 -iso 100 -n

fengkan

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Re: Help ! can't create complete mesh.
« Reply #10 on: May 14, 2014, 07:08:34 AM »
How is the quality of your photo? I explicitly specified the awb and ex params, but the color of photo still differs from each other. I think this made alignment difficult.

Alexey Pasumansky

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Re: Help ! can't create complete mesh.
« Reply #11 on: May 14, 2014, 07:17:55 AM »
Hello agga,

If possible, please send the link to the dataset to support@agisoft.ru.

One of the most probable reasons of the problem is insufficient number of matching points found on the face/head. It may be caused by ineffective use of frame space, for example, the face occupies only a small area on the image, or the image is too noisy or is not focused properly on the object.
Best regards,
Alexey Pasumansky,
Agisoft LLC

Wishgranter

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Re: Help ! can't create complete mesh.
« Reply #12 on: May 14, 2014, 01:27:04 PM »
have done few reconstruction will reply in 48 hours.....
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voudas

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Re: Help ! can't create complete mesh.
« Reply #13 on: May 20, 2014, 04:58:13 PM »
can some1 upload a set so that we can test as well? ty!