| 引用本文: | 王彦臻,彭鸽,熊岳山.图像形变中基于MLS的光滑纹理映射技术.[J].国防科技大学学报,2009,31(1):70-73.[点击复制] |
| WANG Yanzhen,PENG Ge,XIONG Yueshan.Smooth Texture Mapping Based on Moving Least Squares for Image Deformation[J].Journal of National University of Defense Technology,2009,31(1):70-73[点击复制] |
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| 图像形变中基于MLS的光滑纹理映射技术 |
| 王彦臻1, 彭鸽2, 熊岳山1 |
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(1.国防科技大学 计算机学院，湖南 长沙 410073;2.中国科学院 计算技术研究所， 北京 100190)
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| 摘要: |
| 提出了一种基于移动最小二乘的二次拟合多项式纹理映射模型。该模型主要应用于使用控制网格的图像形变技术。图像中的物体被嵌入一个控制网格，并且对控制网格进行形变操作。在控制网格上应用纹理映射，以绘制形变后的物体。在纹理映射时通过将控制网格顶点在形变前后的位移向量作为拟合函数值，采用移动最小二乘方法进行拟合得到映射所使用的二次函数。该方法能够明显改善图像形变后的光滑性，实现逼真、自然的图像形变。 |
| 关键词: 图像形变 纹理映射 二次多项式 移动最小二乘 |
| DOI： |
| 投稿日期：2008-06-26 |
| 基金项目:国家自然科学基金项目(60773022)；国家863计划项目(2007AA01Z313)；北京市自然科学基金项目(4062034) |
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| Smooth Texture Mapping Based on Moving Least Squares for Image Deformation |
| WANG Yanzhen1, PENG Ge2, XIONG Yueshan1 |
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(1.College of Computer, National Univ. of Defense Technology, Changsha 410073, China;2.Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China)
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| Abstract: |
| This paper proposes a quadric fitting polynomial texture mapping model based on moving least squares. The proposed model is mainly applied in image deformation techniques using control meshes. The shape in the image is firstly embedded into a control mesh which is deformed. Then the deformed shape is rendered by using texture mapping on the control mesh. Displaces of the vertices in the control mesh are treated as known function values. The MLS method is used to compute the quadric function for texture mapping. Compared with texture mapping using linear function, the method proposed can greatly improve the smoothness of the texture mapping function, and the deformation result is more natural and physically plausible. |
| Keywords: image deformation texture mapping qufipo moving least squares |
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