[Robotics] Camera calibration parameters

[koen buys]

Hi Gilberto,

I once figured this out in a previous version of blender. Together with
Herve Legrand. I will forward you our experiments back then.
You need both the intrinsic and the external calibration matrix. The
external should be fairly easy to find. The internal one was more difficult.
I hope they didn't change the API of that part.

Best regards,

Koen Buys


On 11 May 2010 11:14, Gilberto Echeverria <gilberto.echeverria at laas.fr>wrote:

> Hello everyone,
>
> As part of the Open Robots Simulator (now called MORSE), we are now
> connecting Blender with other robotics software modules that do the
> processing of the data sent by the simulation. In the case of image data
> from a camera, these modules expect the image to have an associated
> calibration matrix.
>
> The calibration matrix is composed with the focal point, the focal
> length and the dimensions of the acquired image as a number of pixels
> per unit of distance. For the simulated camera in Blender, we can
> consider the focal point to be (0,0). For the other two parameters we
> have been unable to find the data in Blender. We are using the Blender
> camera object and the VideoTexture module to generate captured images.
> Does anyone know where this information could be found in Blender?
>
> Best regards
>
> Gilberto
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