title: Doubts in camera calibration
body: <p>I am working on a project based on machine vision . Wide angle lens with high resolution pinhole camera is being used. </p>
  
  <p>Working distance : Distance between Camera and object . </p>
  
  <p>The resolution will be nearly 10MP. The image size may be 3656 pixel width and 2740 pixel height.
  The project requirements are as mentioned below  </p>
  
  <ol>
  <li>My working distance must be nearly 5metres.</li>
  <li>The camera needs to be  tilted at an angle of 13 degree.</li>
  </ol>
  
  <p>To avoid lens distortion in camera I do camera calibration using OpenCV.</p>
  
  <p>Below mentioned are my doubts pertaining to this camera calibration</p>
  
  <ol>
  <li><p>Since the working distance is 5 meters, should the camera calibration too be done with the same distance?</p></li>
  <li><p>Since the camera is tilted by an angle 13deg in the application ,is it necessary to do the calibration too with the camera tilted at respective angle?</p></li>
  </ol>