The Key Technology Of Virtual Scene Walkthrough Based TIP

Virtual reality (VR) technique is a new integrative information technique that attracts many scientists recently. This new technique construct 3D virtual world by using computer technique, and let user experience immersive feeling. Image-based rendering is an important branch of VR technique, which substantial increase efficiency and realistic modeling. And the TIP(Tour into The Picture) can establish virtual scene from single image.However, the traditional TIP method inevitably has some drawbacks. First of all, it makes deformation when model the scene with obvious channel like characteristics. In addition, the TIP method based single image can't meet the demand of modeling the long depth virtual scene(the depth is greater then 20m) which can be tour freely in.In order to solve these two problems, and enhance the model effect, the method of TIP non-equilateral modeling and TIP connect modeling are brought out in the paper.1. I work in the previous analysis on the basis of the model deformation of the cause of the problem, and put forward TIP non-equilateral modeling principles. This method eliminates the deformation and enhances the virtual reality of the scene.2. Against the jump when tour in the model, we adopt the latest research result, then bring out the multi-model connection method, so that realize the seamless connection between models. Based this technology, the large-scale complex scene modeling will come true.In this paper, the theory of each chapter has been proved to be right by many detailed experiments. So that the new method brought out in the paper is feasible and effective. In additional, the TIP non-equilateral and connection modeling system based on the theories in the chapters use realistic scene as data source to achieve realistic virtual tour, which make abstract theory practical and closer to people's daily live.