How do I create a Projection Matrix for 3D Reconstruction Visual Hull Matlab code?

I'm a civil engineering student who needs to create a 3D photo by combining several 2D digital images taken from different angels. I was recommended to use a code called Visual Hull Matlab (link shown below).

http://www.mathworks.com/matlabcentral/fileexchange/45989-visual-hull-matlab

This code needs a Projection Matrix file which I have no idea how to create. Any help please?

Thanks. P.S: I have limited knowledge in Matlab...

Answer 1

[Mohammad Abouali]

http://www.mathworks.com/help/vision/ug/single-camera-calibrator-app.html

[Omar]

Thanks Mohammad. I've been trying to evaluate the trial version of the "Computer Vision System Toolbox" in which the "Camera Calibrator App" should be available, but unfortunately I couldn't. It tells me somebody will return to me in 1~3 business days which never happened.

Any other suggestion please?

[Mohammad Abouali]

If you have computer vision toolbox, that should be there (I guess).

The alternative is to write it your self.

Search for estimateCameraParameters in your MATLAB and look at the examples.

This might be also helpful

http://www.mathworks.com/help/vision/examples/evaluating-the-accuracy-of-single-camera-calibration.html

But generally check why you don't have cameraCalibrator despite having computer vision installed.