IR Marker Extraction and Image Registration using Stereo Camera

The rapid development of information technology has built a new foundation for digital users with application of 3D computer graphics technology, virtual reality technology and augmented reality technology. Augmented reality technology is the technology that extracts particular regions from the input image of camera, composes virtual digital contents in the extracted region. This technology is divided into visible marker technique and invisible marker technique. The visible marker technique is the technique that uses rectangular marker that is easily tracked. The visible marker technique has a high recognition rate, but it provides a lesser immersion. Conversely, the invisible marker technique is the technique that utilizes the feature point. It provides a more immersion, but has a low recognition rate. This paper implements the augmented reality technology using IR (Infrared Rays) camera and visible camera. The infrared rays give IR marker made by infrared rays LED information, IR marker extracts information of the environment of camera, and then sends 3D model which is synthesized to the input screen of Visible camera. Since this technique uses infrared rays that are invisible to human eyes, it improves immersion as well.