title: how can i get the camera projection matrix out of calibrateCamera() return values
body: <p>I am trying to get a <strong>3x4</strong> camera matrix for triangulation process but <code>calibrateCamera()</code> returns only <strong>3x3</strong> and <strong>4x1</strong> matrices.</p>
  
  <p>How can i get the <strong>3x4</strong> out of those matrices?</p>
  
  <p>Thanks in advance!!</p>