Research Of The Human-Computer Interaction System For Augmented Reality Based On ARToolKit

Augmented Reality (AR) is a kind of skill which can realize the fusion of virtual objects into real environment and expand it. The present thesis introduces the basic concept of AR and its main applications. It also analyzes the key technologies of AR and development platform.This thesis applies the modeling of 3DS and the graphics rendering which is based on programmable graphics hardware into the AR system, and further develops the platform of ARToolKit. Besides that, this paper designs a human-computer interaction system based on monocular vision, and discusses its realizations. The present thesis includes:1. Study the augmented reality of tracking registration, mainly on the realization of identification marker and the conversion of the matrix of coordinate system. Augmented reality of tracking registration is of high efficiency and thus can be used to meet the need of real-time performance.2. Analyze the basic modeling of ARToolKit and ameliorate it, introduce the modeling of 3DS into the platform of ARToolKit. It also analyzes basic structures of 3DS files type, 3D editor chunk and keyframer chunk, presents the realization of this kind of method and the results of the experiment. The application of 3DS file type into virtual models increases the complexity and efficiency of modeling.3. Research the basic rendering of the platform of ARToolKit and ameliorate it. Put forward the application of programmable graphics hardware and platform-cross of Cg language into the platform of ARToolKit. Analyze and then realize the Cg lightening rendering, fog effect and the effects of distortion animation. Provide the experiment result of each section and its analysis. The application of Cg into the AR system can further improve the realities of virtual objects, and its combination of real objects.4. Import 3DS modeling, graphics rendering based on Cg, the disposal of mutual information into the platform of ARToolKit. Introduce and design the realization of a human-computer interaction system based on monocular vision. The system has a good compatibility, low requirement on the hardware, stable capability, better expansibility and transferability.