Abstract: In many science fiction movies invisible things are seen. This paper describes the technique of making things invisible by optical camouflage technique. The things to be made invisible is coated or covered with retro reflection material. A projector is used to mask the covered material making object virtually transparent. Capturing the background image requires a video camera, which sits behind the person wearing the cloak. The video from the camera must be in a digital format so it can be sent to a computer for image processing using image based rendering technical. There are some useful applications for this simple but astonishing technology.

Keywords: Optical Camouflage Technology, Retro-Reflective material, Head Mounted Projector (HMP).