Re: Code for 3d reconstruction

[Andrew Straw]

Hi Simon,

The general problem is called triangulation. See http://en.wikipedia.org/wiki/Triangulation_(computer_vision) .

For individual time points (no tracking), I use the method outlined in Hartley & Zisserman 2003 sections 12.2 and A5.3 . A bit of googling brought up this matlab code: http://stackoverflow.com/questions/2276445/triangulation-direct-linear-transform

For tracking, there's more to consider and my thoughts on the subject are in our paper: http://rsif.royalsocietypublishing.org/content/early/2010/07/13/rsif.2010.0230.full

Best regards,
Andrew

On 17-Jul-12 15:51, Simon wrote:

We have the self-calibration code working.  Now we have the camera parameters, the obvious next step is to collect some data and reconstruct 3d positions.  Can anyone point me in the right direction?  Thanks!

-- 
Andrew D. Straw, Ph.D.
Research Institute of Molecular Pathology (IMP)
Vienna, Austria
http://strawlab.org/

[Tomas Svoboda]

Hi Simon,

see the function
./MultiCamValidation/CoreFunctions/uP2X.m
in the package

Tomas

On Tue, 17 Jul 2012, Andrew Straw wrote:

> Hi Simon,
>
> The general problem is called triangulation. See
> http://en.wikipedia.org/wiki/Triangulation_(computer_vision) .
>
> For individual time points (no tracking), I use the method outlined in Hartley & Zisserman 2003
> sections 12.2 and A5.3 . A bit of googling brought up this matlab code:
> http://stackoverflow.com/questions/2276445/triangulation-direct-linear-transform
>
> For tracking, there's more to consider and my thoughts on the subject are in our paper:
> http://rsif.royalsocietypublishing.org/content/early/2010/07/13/rsif.2010.0230.full
>
> Best regards,
> Andrew
>
> On 17-Jul-12 15:51, Simon wrote:
> We have the self-calibration code working. �Now we have the camera parameters, the
> obvious next step is to collect some data and reconstruct 3d positions. �Can anyone
> point me in the right direction? �Thanks!
>
>
>
>

--

----------------------------------------------------------------------
Tomas Svoboda mailto: svo...@cmp.felk.cvut.cz
Center for Machine Perception http://cmp.felk.cvut.cz/~svoboda
Department of Cybernetics http://cyber.felk.cvut.cz
Faculty of Electrical Engineering phone: (+420) 224.35.74.48
Czech Technical University in Prague fax: (+420) 224.35.73.85