title: Translation from Camera Coordinates System to Robotic-Arm Coordinates System
body: <p>I am new in robotics and I am working on a project where I need to pass the coordinates from the camera to the robot.</p>
  
  <p>So the <strong>robot</strong> is just an arm, it is then stable in a <strong>fixed position</strong>. I do not even need the 'z' axis because the board or the table where everything is going on have always the same 'z' coordinates.</p>
  
  <p>The <strong>webcam</strong> as well is always in a <strong>fixed position</strong>, it is not part of the robot and it does not move.</p>
  
  <p>The <strong>problem</strong> I am having is in the conversion from 2D camera coordinates to a 3D robotic arm coordinates (2D is enough because as stated before the 'z' axis is not needed as is always in a fixed position).</p>
  
  <p>I'd like to know from you guys, which one is the <strong>best approach</strong> to face this kind of problems so I can start to research.</p>
  
  <p>I've found lot of information on the web but I am getting a lot of confusion, I would really appreciate if someone could address me to the right way. </p>
  
  <p>I don't know if this information are useful but I am using OpenCV3.2 with Python</p>
  
  <p>Thank you in advance</p>