Rendering Scenes In the Real World for Virtual Environments Using Scanned Images

• Main Authors: Tsao,Wen-kae, 曹文凱
• Other Authors: Ouhyoung,Ming
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/34670084350661007300

碩士 === 國立臺灣大學 === 資訊工程研究所 === 84 === This paper describes an alternative approach of panoramic view rendering for real-time interactive applications trying to re- construct a real-world like environment. This is accomplished by combining techniques of computer graphics and scanned images or photos taken from the real world: we generate photo- realistic environment maps from photo-realistic images, and then use the fully aligned maps to render the scene by computer graphics techniques. There are two kinds of environment maps: a textured cylinder-like prism, and a textured sphere-like polyhedron. Al- though some precision in alignment is lost, the high complexity, high quality and high frame rate performance on a Pentium PC without any hardware support makes this approach attractive in low cost systems. Our current performance on an Intel Pentium- 133 PC: 17 frames (size of 639x479 pixels, 16-bit color) per second for rendering a textured cylinder-like prism, and 8-13 frames per second for rendering a textured sphere-like poly- hedron.