RESEARCH ON AUGMENTED REALITY TECHNOLOGY

Abstract

With the coming of the 21st century, man is entering into a brand-new multimedia age. Digital Video processing, as the most important, expressive and complex one in multimedia, has progressed quite a lot. An augmented reality ( AR) system generates a composite view for the user. It is a combination of the real scene viewed by the user and a virtual reality (VR) scene generated by the computer that augments the scene with additional information. It is a new technology which can combine the real world information with the virtual world information seamless.

In this paper, a simple registration method using natural features based on the projective reconstruction technique is proposed. This method consists of two steps: embedding and rendering. Embedding involves specifying four points to build the world coordinate system on which a virtual object will be superimposed. In rendering, the Kanade-Lucas-Tomasi (KLT) feature tracker is used to track the natural feature correspondences in the live video. The natural features that have been tracked are used to estimate the corresponding projective matrix in the image sequence.