Tour into the picture

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Abstract
A new method,called TIP (Tour Into the Picture) is presented for easily making,animations from one 2D picture or photograph of a scene. In TIP, animation is created from the viewpoint of a camera,which ,can be three-dimensionally "walked or flown- through" the 2D picture or photograph. To make such animation, conventional computer,vision techniques cannot be applied in the 3D modeling process for the scene, using only a single 2D image. Instead a spidery ,mesh ,is employed ,in our ,method ,to obtain ,a simple scene model ,from ,the 2D image ,of the ,scene using a graphical user interface. Animation ,is thus ,easily generated without the need of multiple 2D images. Unlike existing methods, our method is not intended to construct a precise ,3D scene model. The scene model ,is rather simple, and not fully 3D-structured. The modeling process starts byspecifying,the vanishing ,point in the ,2D image. ,The background,in the ,scene model ,then consists of at ,most ,five rectangles, whereas hierarchical polygons are used as a model for each foreground ,object. Furthermore a virtual camera ,is moved around the 3D scene model, with the viewing angle being freely controlled. This process is easily and effectively performed,using the spidery mesh ,interface. We have ,obtained a wide ,variety of animated scenes which demonstrate the efficiency of TIP. CRCategories and ,Subject Descriptors: I.3.3 [Computer Graphics]: Picture/Image Generation - viewing algorithms; I.3.7 [Computer Graphics] Three-dimensional Graphics and Realism, Animation Additional Keywords: graphical user interface, image-based

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