Estimate Homography to do 2D to 3D integration (2)

I. Homography Estimation: 
   - http://www.cs.ubc.ca/grads/resources/thesis/May09/Dubrofsky_Elan.pdf
   - https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CD4QFjAB&url=http%3A%2F%2Fvims.cis.udel.edu%2F~chandra%2F689%2FSpring06%2Faffine%2Bhomography.ppt&ei=0dFoU_GbI-WW0QXjqIGoDw&usg=AFQjCNF0NHqgjF29AkfQL82_mZmc-NJhIQ&sig2=B7HooLURQEwXBDFI9LrkaQ

II. MATLAB Function of Homography: 
 
     1. The following method is for mapping one area to another. The transform matrix can be applied to the entire image for transforming each point from one Image to another.

     - maketform: http://www.mathworks.co.uk/help/images/ref/maketform.html
     - tformfwd: http://www.mathworks.co.uk/help/images/ref/tformfwd.html
     - tforminv: http://www.mathworks.co.uk/help/images/ref/tforminv.html
 
     2. This is an alternative way to maintain the homography of the entire image. (...which fits our needs to do mapping from one fixed point in hand-held camera to another moving point in the Kinect frame)

         - fitgeotrans: http://www.mathworks.co.uk/help/images/ref/fitgeotrans.html#btxcsco-2
         - fixed points: points of markers
           moving points: points located on an object