I have shared my working base trd design 14.3 on the zedboard on my blog. http://shakithweblog.blogspot.nl/2012/12/getting-sobel-filter-application.html
Input video stream is taken from webcam and then filtered frame is shown on the hdmi monitor. Control and software filter are based on openCV.
What steps would it take to port your zedboard design to run on zc706 board.
Also, can you tell which webcams you've used with that design.