title: Project a 2D point from one camera view onto the corresponding 2D point in another camera view of the same scene
body: <p>I'm using open cv in C++ in multi-view scene with two cameras. I have the intrinsic and extrinsic parameters for both cameras.</p>
  
  <p>I would like to map a (X,Y) point in View 1 to the same point in the second View. I'm am slightly unsure how I should use the intrinsic and extrinsic matrices in order to convert the points to a 3D world and finally end up with the new 2D point in view 2.</p>