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1. 发明授权

US07149368B2 System and method for synthesis of bidirectional texture functions on arbitrary surfaces 有权
标题翻译：用于在任意表面上合成双向纹理函数的系统和方法
公开(公告)号：US07149368B2
公开(公告)日：2006-12-12
申请号：US10299623
申请日：2002-11-19
申请人： Xin Tong , Ligang Liu , Baining Guo , Heung-Yeung Shum
发明人： Xin Tong , Ligang Liu , Baining Guo , Heung-Yeung Shum
IPC分类号： G06K9/36
CPC分类号： G06T15/04
摘要： A bidirectional texture function (BTF) synthesizer serves to synthesize BTFs on arbitrary manifold surfaces using “surface textons” given a sample BTF as an input. The synthesized BTFs fit the surface geometry naturally and seamlessly, and not only look similar to a sample BTF in all viewing and lighting conditions, but also exhibit a consistent mesostructure when the viewing and lighting directions change. Further, the synthesized BTFs capture the fine-scale shadows, occlusions, and specularities caused by surface mesostructures, thereby improving the perceived realism of the textured surfaces. In addition, the BTF synthesizer can describe real-world textures to allow a user to decorate real-world geometry with real-world textures. Finally, BTF synthesis using surface textons works well for any materials that can be described by three-dimensional textons.
摘要翻译：双向纹理函数（BTF）合成器用于在给定样本BTF作为输入的情况下使用“表面纹理”合成任意歧管表面上的BTF。合成的BTF自然无缝地适应表面几何，并且在所有观察和照明条件下不仅看起来类似于样品BTF，而且在观察和照明方向改变时也表现出一致的介观结构。此外，合成的BTF捕获由表面介观结构引起的微小尺度的阴影，遮挡物和镜面反射，从而改善纹理表面的感知现实性。此外，BTF合成器可以描述真实世界的纹理，以允许用户使用真实世界纹理来装饰真实世界的几何。最后，使用表面纹理的BTF合成对于可以由三维文本描述的任何材料起作用。

2. 发明授权

US07358978B2 Perceptually based approach for planar shape morphing 失效
标题翻译：基于感知的平面形状变形方法
公开(公告)号：US07358978B2
公开(公告)日：2008-04-15
申请号：US10918840
申请日：2004-08-13
申请人： Baining Guo , Bo Zhang , Heung-Yeung Shum , Ligang Liu
发明人： Baining Guo , Bo Zhang , Heung-Yeung Shum , Ligang Liu
IPC分类号： G09G5/00
CPC分类号： G06T13/80 , G06T2210/44
摘要： An approach for morphing between planar shapes is disclosed. Correspondences are established between perceptual feature points that are extracted from both source and target shapes. A similarity metric between two feature points is defined using the intrinsic properties of their local neighborhoods. The optimal correspondence is found by an efficient dynamic programming technique. This approach treats shape noise by allowing the discarding of small feature points, which introduces skips in the traversal of the dynamic programming graph. Intermediate shapes are obtained by interpolating the overall shapes constructed by feature points and the detailed information of the shapes respectively.
摘要翻译：公开了一种在平面形状之间变形的方法。在从源和目标形状提取的知觉特征点之间建立对应关系。两个特征点之间的相似性度量使用其本地邻域的固有属性来定义。通过有效的动态规划技术找到最佳对应关系。这种方法通过允许丢弃小特征点来处理形状噪声，这引起了遍历动态规划图的跳跃。通过内插由特征点构成的整体形状和形状的详细信息来获得中间形状。

3. 发明申请

US20060033759A1 Perceptually based approach for planar shape morphing 失效
标题翻译：基于感觉的平面形状变形方法
公开(公告)号：US20060033759A1
公开(公告)日：2006-02-16
申请号：US10918840
申请日：2004-08-13
申请人： Baining Guo , Bo Zhang , Heung-Yeung Shum , Ligang Liu
发明人： Baining Guo , Bo Zhang , Heung-Yeung Shum , Ligang Liu
IPC分类号： G09G5/00
CPC分类号： G06T13/80 , G06T2210/44
摘要： An approach for morphing between planar shapes is disclosed. Correspondences are established between perceptual feature points that are extracted from both source and target shapes. A similarity metric between two feature points is defined using the intrinsic properties of their local neighborhoods. The optimal correspondence is found by an efficient dynamic programming technique. This approach treats shape noise by allowing the discarding of small feature points, which introduces skips in the traversal of the dynamic programming graph. Intermediate shapes are obtained by interpolating the overall shapes constructed by feature points and the detailed information of the shapes respectively.
摘要翻译：公开了一种在平面形状之间变形的方法。在从源和目标形状提取的知觉特征点之间建立对应关系。两个特征点之间的相似性度量使用其本地邻域的固有属性来定义。通过有效的动态规划技术找到最佳对应关系。这种方法通过允许丢弃小特征点来处理形状噪声，这引起了遍历动态规划图的跳跃。通过内插由特征点构成的整体形状和形状的详细信息来获得中间形状。

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