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Messages - Claude

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16
Face and Body Scanning / Canon D600 kit lenes 18-50 vs cheap 50 mm
« on: September 11, 2013, 05:55:28 PM »
Hello,

I would like to build small camera rig with Canon D600.
I wonder what is best choice for lenses. If cheap 50 mm will make geometry reconstruction much better than kit lenses.

What do you think guys.

Thanks for answer.

17
General / Re: fixed focal length ?
« on: September 04, 2013, 04:49:32 PM »
as i say. 111cams is divided to 2 groups, every group have same lens and we use prime lenses.....
Thanks,

I will try to do it like that. I just wonder if fixed rig will work with different heads, but maybe sizes of heads are not so differ from each other.


18
General / Re: fixed focal length ?
« on: September 04, 2013, 04:04:16 PM »
Claude we use almost same focus and same lenses in our 111cam setup, its divided in 2 groups.....

So  you think it is worth try to set rig to have it exactly the same?
I could manually set all focus at eg. 1.5 meter and move camera with tripod to get good focus on model. It is a bit harder than just focus separate cameras on model. I wander if this rig setup give better mesh?

19
General / Re: fixed focal length ?
« on: September 04, 2013, 12:29:59 PM »
I just wonder...

I have small rig of 12 cameras. If I setup all cameras to the same focus i will produce better result in mesh reconstruction than different focus on each camera.
I wonder if it benefit to setup all camera exactly the same?

20
Face and Body Scanning / Re: Minimal cameras rig for head scanning
« on: March 15, 2013, 04:41:39 PM »
Hello Infinite!

So it will be better make 6 stereo pair and scan only face than whole head with worse quality?
Wow big should be the angular distance between the camera?

Structured light - you mean projection noise on model? Textures are less important for me, so it could be good solution.

Thanks in advance for your answer.

I doubt you will be able to get very good results with 12 cameras trying to do 360. You would certainly need structured light in there from multiple angles to help reconstruction.

21
Face and Body Scanning / Re: Minimal cameras rig for head scanning
« on: March 14, 2013, 03:45:49 PM »
I have to fit to budget. I reduce rig to 12 cameras.

andy_s - Yes I notice that people use two cameras for one part of scanning object.

I have limited budget so I wonder if with 12 cameras it is better to put it in pairs and scan half of head or use like on my simulation around head.

My simulation. I will render soon and test result in Agisoft

22
Face and Body Scanning / Re: Minimal cameras rig for head scanning
« on: March 12, 2013, 03:53:08 PM »
Thanks RalfH for answer!

I want to get best quality as it possible. The most important is face but it will be nice to have also scanned back of had even with less precision.

I made quick symulatin in photoshop and made half of camers with distans 15° and rest 30°. I need for it 18 cameras.

 Now I have to find out how many cameras I shuld put up and below head.
I put 5 cameras below and 5 cameras over head.

Finnally I need 28 cameras. What do you  think about such setup?

23
Face and Body Scanning / Minimal cameras rig for head scanning
« on: March 12, 2013, 02:12:54 PM »
Hello! I'm new here.

I would like to make cameras rig for scanning heads. I going to buy Canon 550D with 50 mm lenses.
How many cameras I should buy to make good quality scans of heads.

Thanks in advance for your answer.

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