Virtual Tour Into the Image With Augmented Objects
| Autor: | Chung-Yin Hsu, 許中瀛 |
|---|---|
| Rok vydání: | 2003 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 91 In the research filed of image-based rendering, several papers recently proposed a novel technique called TIP (Tour Into the Picture). By that technique, the scenery model is constructed from a single image that is allowed viewers tour into the scene and achieve the animation effect with a certain degree of satisfaction. TIP adapts a graphical user interface so called spider mesh that is based on the observation of one vanish point perspective projection. Through the spider mesh, a close type of geometry model is created for describing the 3D scene of the image. However, if the close geometry model is used to describe the image that depicts the outdoors scene, the image distortion can’t be prevented when the novel view is rendering. In this research we propose an open geometry model named Topless Box to replace the original simple box model. Before the topless box is constructed, we separate the image into front image and far image that lead use to achieve a more accurate model of the scene and then obtain a satisfaction of animation effect. In addition, we extend TIP into two vanish points perspective projection that was mentioned in the previous research works but rarely discussed and seriously studied before. Comparing the scene model that is constructed by the two vanish points method with the scene model by the one vanish point method, we find that the new model is more adequate for describing the real scene and produces a more satisfy animation effect. Meanwhile, several different types of models are also proposed under the extension of the same concept. They are suitable for many different forms of images—indoors, outdoors, near, or far scenes. The limitation due to the simple box model can be avoided. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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