Estimate Homography to do 2D to 3D integration (14): Extract known points in pairs automatically

I. Find the limitation of my proposed system by collecting real-cases for demo:

   - The brightness of the environment causes unstable result of color recognition from Particle Filter Method
   - Not powerful enough to do "look at the color markers, and look to other place, then look to the color markers again" process: not as stable as using the Webcam (...Eye-tracker shows lower brightness of color comparing to Webcam in the extracted video frames)


II. The frame rate of Webcam is not a constant value; instead of using a Webcam,  adapting Eye-Tracker to do every experiments... 

    - Figure out how to make two videos (one from Kinect, another from eye-tracker) can play simultaneously: Frame Rate is the hint
    - Kinect: 30 FPS, Eye-Tracker: 24FPS
    - Here is the way to do:

III. Part of experimental results for final demo 

     - Zoom, Tilt, Viewpoint_Change