| Self-similarity Based Editing of 3D Surface Textures Using Height and Albedo Maps |
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| 作者姓名： | DONG Junyu REN Jing CHEN Guojiang |
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| 作者单位： | [1]Department of Computer Science, Ocean University of China, Qingdao 266071, P.R. China [2]College of Teachers, Qingdao University, Qingdao 266071, P. R. China |
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| 基金项目： | 教育部留学回国人员科研启动基金 |
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| 摘 要： | This paper presents an inexpensive method for self-similarity based editing of real-world 3D surface textures by using height and albedo maps. Unlike self-similarity based 2D texture editing approaches which only make changes to pixel color or inten- sity values, this technique also allows surface geometry and reflectance of the captured 3D surface textures to be edited and relit us- ing illumination conditions and viewing angles that differ from those of the original. A single editing operation at a given location affects all similar areas and produces changes on all images of the sample rendered under different conditions. Since surface height and albedo maps can be used to describe seabed topography and geologic features, which play important roles in many oceanic proc- esses, the proposed method can be effectively employed in applications regarding visualization and simulation of oceanic phenom- ena.
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| 关 键 词： | 三维表面结构 高程图 反照率图 剪辑 自相似性 |
| 收稿时间： | 4 July 2005 |
| 修稿时间： | 15 November 2006 |
Self-similarity based editing of 3D surface textures using height and albedo maps |
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| DONG Junyu REN Jing CHEN Guojiang.Self-similarity Based Editing of 3D Surface Textures Using Height and Albedo Maps[J].Journal of Ocean University of China,2007,6(2):209-212. |
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| Authors: | Dong Junyu Ren Jing Chen Guojiang |
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| Institution: | 1. Department of Computer Science, Ocean University of China, Qingdao 266071, P.R. China
2. College of Teachers, Qingdao University, Qingdao 266071, P. R. China |
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| Abstract: | This paper presents an inexpensive method for self-similarity based editing of real-world 3D surface textures by using height and albedo maps. Unlike self-similarity based 2D texture editing approaches which only make changes to pixel color or intensity values, this technique also allows surface geometry and reflectance of the captured 3D surface textures to be edited and relit using illumination conditions and viewing angles that differ from those of the original. A single editing operation at a given location affects all similar areas and produces changes on all images of the sample rendered under different conditions. Since surface height and albedo maps can be used to describe seabed topography and geologic features, which play important roles in many oceanic processes, the proposed method can be effectively employed in applications regarding visualization and simulation of oceanic phenomena. |
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| Keywords: | 3D surface texture self-similarity texture editing bump mapping visualization virtual reality |
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