Walkthrough in Image-Based Virtual In-door Environment
基于图象的室内虚拟漫游系统

s As a new rendering thcnique, image based rendering(IBR) receives more and more attention becarse of its high efficiency in virtual scenes modeling and rendering comparing with traditional geometry based rendering. The major challenge of IBR is to represent the continuous scene with images of discontinuous views, so that users can change their viewpoints arbitrarily in real time. In other words, we should find a way to stitch images of different views together. In this paper, we show the implementation of an image based spherical virtual in door environment. The scene is represented as a spherical panorama, which means user is fixed at the center of the sphere and can only look around. Compared with previous works, our system can stitch a continuous panorama from several photos with a semiautomatic method more easily. Meanwhile, a lookup table based algorithm is used to realize the real time walkthrough on a fixed point. At the end of this paper, some experimental results can demonstrate the efficiency and quality of our method.