| 运用局部纹理映射加速曲面纹理合成 |
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| 引用本文： | 江巨浪,张佑生,薛峰,郑江云.运用局部纹理映射加速曲面纹理合成[J].计算机辅助设计与图形学学报,2008,20(11). |
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| 作者姓名： | 江巨浪 张佑生 薛峰 郑江云 |
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| 作者单位： | 1. 安庆师范学院物理与电气工程学院安庆246011
2. 合肥工业大学计算机与信息学院,合肥,230009 |
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| 基金项目： | 国家自然科学基金，安徽省高校省级自然科学研究重点项目 |
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| 摘 要： | 基于样图的纹理合成方法能够在网格曲面上合成高质量纹理,但合成速度有待进一步提高,对此提出一种运用局部纹理映射加速曲面纹理合成的算法.首先以三角形法向量、切向矢量与纹理尺度为约束,将三角网格曲面分割为一系列映射区与合成区;然后用基于块的平面纹理合成方法生成大面积样图,用调和映射方法对映射区进行纹理映射;最后采用基于三角块的合成方法生成合成区纹理.实验结果表明,该算法对一般的随机性纹理与半结构性纹理具有很高的合成质量,能够控制纹理方向与尺度的变化.由于大部分三角形的纹理通过局部纹理映射得到,仅需要合成少数三角形的纹理,纹理合成过程得到大幅度地加速.
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| 关 键 词： | 纹理合成 纹理映射 曲面分割 算法效率 |
Curve Surface Texture Synthesis by Local Texture Mapping |
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| Jiang Julang,ZItang YOUSheng,Xue Feng,Zheng Jiangyun.Curve Surface Texture Synthesis by Local Texture Mapping[J].Journal of Computer-Aided Design & Computer Graphics,2008,20(11). |
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| Authors: | Jiang Julang ZItang YOUSheng Xue Feng Zheng Jiangyun |
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| Affiliation: | Jiang Julang~(1)) Zhang Yousheng~(2)) Xue Feng~(2)) Zheng Jiangyun~(1)) ~(1))(School of Physics , Electrical Engineering,Anqing Normal College,Anqing 246011) ~(2))(School of Computer Science , Information,Hefei University of Technology,Hefei 230009) |
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| Abstract: | High quality textures can be generated on mesh surfaces by texture synthesis from samples,however the synthesis performance should be further improved.By combining texture synthesis with the local texture mapping,the paper presents a novel algorithm to speed up the process of texture synthesis.By the algorithm,the surfaces are first divided into a series of mapping areas and synthesis areas using the constraints of the triangles' normal and texture attributes.Then the mapping areas are textured by harmonic ... |
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| Keywords: | texture synthesis texture mapping surface division algorithm efficiency |
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