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1. 发明申请

US20130235047A1 METHOD FOR ANIMATING CHARACTERS, WITH COLLISION AVOIDANCE BASED ON TRACING INFORMATION 有权
标题翻译：基于跟踪信息的消除角色的方法
公开(公告)号：US20130235047A1
公开(公告)日：2013-09-12
申请号：US13988338
申请日：2011-11-28
申请人： Zhijin Xia , Jun Teng , Kangying Cai , Zhibo Chen
发明人： Zhijin Xia , Jun Teng , Kangying Cai , Zhibo Chen
IPC分类号： G06T13/80
CPC分类号： G06T13/80 , G06T13/40 , G06T2210/21
摘要： A method for determining a moving direction or moving velocity for a character in a group comprises reading tracing information from a cell in a terrain map on which the character is located, determining if collision avoidance is needed, and if a collision avoiding manoeuvre is necessary then updating the tracing information in the current terrain cell.
摘要翻译：用于确定组中的角色的移动方向或移动速度的方法包括从字符所在的地形图中的小区读取跟踪信息，确定是否需要避免碰撞，并且如果需要碰撞避免机动，则更新当前地形单元格中的跟踪信息。

2. 发明授权

US09460540B2 Method for animating characters, with collision avoidance based on tracing information 有权
标题翻译：基于跟踪信息进行动画处理，避免碰撞的方法
公开(公告)号：US09460540B2
公开(公告)日：2016-10-04
申请号：US13988338
申请日：2011-11-28
申请人： Zhijin Xia , Jun Teng , Kangying Cai , Zhibo Chen
发明人： Zhijin Xia , Jun Teng , Kangying Cai , Zhibo Chen
IPC分类号： G06T13/80 , G06T13/40
CPC分类号： G06T13/80 , G06T13/40 , G06T2210/21
摘要： A method for determining a moving direction or moving velocity for a character in a group comprises reading tracing information from a cell in a terrain map on which the character is located, determining if collision avoidance is needed, and if a collision avoiding maneuver is necessary then updating the tracing information in the current terrain cell.
摘要翻译：用于确定组中的角色的移动方向或移动速度的方法包括从字符所在的地形图中的小区读取跟踪信息，确定是否需要避免碰撞，并且如果需要碰撞避免机动，则更新当前地形单元格中的跟踪信息。

3. 发明授权

US09002121B2 Method and apparatus for encoding geometry patterns, and method for apparatus for decoding geometry patterns 有权
标题翻译：用于编码几何图案的方法和装置，以及用于解码几何图案的装置的方法
公开(公告)号：US09002121B2
公开(公告)日：2015-04-07
申请号：US13825546
申请日：2010-09-30
申请人： Kangying Cai , Jiheng Yang , Jun Teng , Zhijin Xia
发明人： Kangying Cai , Jiheng Yang , Jun Teng , Zhijin Xia
IPC分类号： G06K9/36 , G06K9/34 , G06K9/62 , G06T17/00 , G06T9/00 , G06T17/10 , G06T15/04
CPC分类号： G06T17/10 , G06T9/001 , G06T15/04 , G06T17/00
摘要： 3D models often have a large number of small to medium sized connected components, with small numbers of large triangles, often with arbitrary connectivity. The efficiency of compact representation of large multi-component 3D models can be improved by detecting and representing similarities between components thereof, even if the components are not exactly equal. The invention uses displacement maps for encoding two or more different but similar geometry patterns differentially, based on clustering and a cluster representative surface. A method for encoding a plurality of geometry patterns comprises detecting and encoding identical copies of geometrical patterns, detecting and clustering similar geometry patterns, and detecting partial similarity. The detecting partial similarity comprises generating a cluster representative surface, generating for at least one clustered geometry pattern a displacement map, and encoding the common surface and the displacement maps.
摘要翻译： 3D模型通常具有大量的中小型连接组件，具有少量的大三角形，通常具有任意连接。即使组件不完全相等，可以通过检测和表示其组件之间的相似性来提高大型多分量3D模型的紧凑表示的效率。本发明使用位移图来基于聚类和簇代表性表面差异地编码两个或多个不同但相似的几何图形。用于编码多个几何图案的方法包括检测和编码几何图案的相同副本，检测和聚类相似几何图案，以及检测部分相似性。检测部分相似度包括生成聚簇代表性表面，为至少一个聚集几何图案生成位移图，以及对公共表面和位移图进行编码。

4. 发明申请

US20130300751A1 METHOD FOR GENERATING MOTION SYNTHESIS DATA AND DEVICE FOR GENERATING MOTION SYNTHESIS DATA 审中-公开
标题翻译：用于产生运动合成数据的方法和用于产生运动合成数据的装置
公开(公告)号：US20130300751A1
公开(公告)日：2013-11-14
申请号：US13976608
申请日：2010-12-29
申请人： Jun Teng , Zhijin Xia , Kangying Cai , Jiheng Yang
发明人： Jun Teng , Zhijin Xia , Kangying Cai , Jiheng Yang
IPC分类号： G06T13/40
CPC分类号： G06T13/40
摘要： A method for generating motion synthesis data from two recorded motion clips comprises transforming the motion frames to standard coordinates, separating HF motion data of the motion frames from LF motion data, determining from different motion clips at least two motion frames whose frame distance is below a threshold, and defining a transition point between the at least two motion frames, interpolating motion data between said determined motion frames separately for HF and LF motion data, and generating a motion path from three segments: one segment is transformed motion data from a first motion clip up to the transition point, one segment is the interpolated motion data, and one segment is transformed motion data from a second motion clip, starting from the transition point.
摘要翻译：用于从两个记录的运动剪辑产生运动合成数据的方法包括将运动帧变换为标准坐标，将运动帧的HF运动数据与LF运动数据分离，从不同的运动剪辑确定帧距离低于阈值，并且在所述至少两个运动帧之间定义转换点，在HF和LF运动数据之间分别插入所确定的运动帧之间的运动数据，以及从三个段生成运动路径：一段是来自第一运动的变换的运动数据剪切到转换点，一个段是内插运动数据，一个段从第二个运动剪辑转换运动数据，从转换点开始。

5. 发明申请

US20130182960A1 METHOD AND APPARATUS FOR ENCODING GEOMETRY PATTERNS, AND METHOD FOR APPARATUS FOR DECODING GEOMETRY PATTERNS 有权
标题翻译：用于编码几何图案的方法和装置，以及用于解码几何图案的装置的方法
公开(公告)号：US20130182960A1
公开(公告)日：2013-07-18
申请号：US13825546
申请日：2010-09-30
申请人： Kangying Cai , Jiheng Yang , Jun Teng , Zhijin Xia
发明人： Kangying Cai , Jiheng Yang , Jun Teng , Zhijin Xia
IPC分类号： G06T17/10
CPC分类号： G06T17/10 , G06T9/001 , G06T15/04 , G06T17/00
摘要： 3D models often have a large number of small to medium sized connected components, with small numbers of large triangles, often with arbitrary connectivity. The efficiency of compact representation of large multi-component 3D models can be improved by detecting and representing similarities between components thereof, even if the components are not exactly equal. The invention uses displacement maps for encoding two or more different but similar geometry patterns differentially, based on clustering and a cluster representative surface. A method for encoding a plurality of geometry patterns comprises detecting and encoding identical copies of geometrical patterns, detecting and clustering similar geometry patterns, and detecting partial similarity. The detecting partial similarity comprises generating a cluster representative surface, generating for at least one clustered geometry pattern a displacement map, and encoding the common surface and the displacement maps.
摘要翻译： 3D模型通常具有大量的中小型连接组件，具有少量的大三角形，通常具有任意连接。即使组件不完全相等，可以通过检测和表示其组件之间的相似性来提高大型多分量3D模型的紧凑表示的效率。本发明使用位移图来基于聚类和簇代表性表面差异地编码两个或多个不同但相似的几何图形。用于编码多个几何图案的方法包括检测和编码几何图案的相同副本，检测和聚类相似几何图案，以及检测部分相似性。检测部分相似度包括生成聚簇代表性表面，为至少一个聚集几何图案生成位移图，以及对公共表面和位移图进行编码。

6. 发明申请

US20130265304A1 3D MESH MODEL AND METHOD FOR CREATING THE 3D MESH MODEL 审中-公开
标题翻译： 3D MESH模型和创建3D网格模型的方法
公开(公告)号：US20130265304A1
公开(公告)日：2013-10-10
申请号：US13996469
申请日：2010-12-23
申请人： Kangying Cai , Zhibo Chen , Weiliang Meng , Jun Teng
发明人： Kangying Cai , Zhibo Chen , Weiliang Meng , Jun Teng
IPC分类号： G06T17/10
CPC分类号： G06T17/10 , G06T17/005 , G06T17/20 , G06T19/00
摘要： For improving the compression efficiency of 3D model processing, easier discovering of repetitive patterns is required. The invention enables simplified and improved compression of 3D models by using a pattern-instance record table, which provides the pattern-instance relationship for all instances of repetitive patterns within a 3D object. A 3D mesh model comprises data of a first reference 3D mesh model, an electronic pattern-instance record table comprising first and second instance data, wherein the first instance data points to the first reference 3D mesh model and the second instance data points to the first or a further reference 3D mesh model, and an instance record for third instance data of at least one secondary 3D mesh model instance, wherein the third instance data comprise said first and second instance data or references to said first and second instance data.
摘要翻译：为了提高3D模型处理的压缩效率，需要更轻松地发现重复模式。本发明通过使用模式实例记录表来简化和改进3D模型的压缩，该模式实例记录表为3D对象内的重复模式的所有实例提供了模式 - 实例关系。 3D网格模型包括第一参考3D网格模型的数据，包括第一和第二背景数据的电子模式实例记录表，其中所述第一背景数据指向所述第一参考3D网格模型，并且所述第二背景数据指向所述第一背景数据或另外的参考3D网格模型，以及用于至少一个次要3D网格模型实例的第三实例数据的实例记录，其中所述第三背景数据包括所述第一和第二实例数据或对所述第一和第二实例数据的引用。

7. 发明申请

US20130103365A1 METHOD AND APPARATUS FOR DETECTING REPETITIVE STRUCTURES IN 3D MESH MODELS 审中-公开
标题翻译：用于检测3D网格模型中重复结构的方法和装置
公开(公告)号：US20130103365A1
公开(公告)日：2013-04-25
申请号：US13807322
申请日：2010-06-30
申请人： Kangying Cai , Weiwei Li , Zhibo Chen
发明人： Kangying Cai , Weiwei Li , Zhibo Chen
IPC分类号： G06T19/00
CPC分类号： G06T19/00 , G06K9/00201 , G06K9/469 , G06K9/48 , G06K2209/29 , G06T17/10
摘要： Discovering repetitive structures in 3D models is a challenging task. A method for detecting repetitive structures in 3D models comprises sampling the 3D model using a current sampling step size, detecting repetitive structures and remaining potions of the model, determining a representative for each of the one or more repetitive structures, and as long as the detecting step yields one or more repetitive structures, reducing the current sampling step size and repeating the steps of sampling and detecting for each detected representative of a detected repetitive structure and for the remaining portions of the model, wherein the reduced sampling step size is used. The described method and device can e.g. be used for 3D model compression, 3D model repairing, or geometry synthesis.
摘要翻译：发现3D模型中的重复结构是一项具有挑战性的任务。用于检测3D模型中的重复结构的方法包括使用当前采样步长对模型进行采样，检测模型的重复结构和剩余部分，为每个一个或多个重复结构确定代表，并且只要检测步骤产生一个或多个重复结构，减少当前采样步长并重复对每个检测到的检测到的重复结构的代表进行采样和检测的步骤以及模型的剩余部分，其中使用减小的采样步长。所描述的方法和装置可以例如。用于3D模型压缩，3D模型修复或几何合成。

8. 发明申请

US20140185668A1 METHOD FOR ADAPTIVE ENTROPY CODING OF TREE STRUCTURES 有权
标题翻译：树结构的自适应熵编码方法
公开(公告)号：US20140185668A1
公开(公告)日：2014-07-03
申请号：US14233519
申请日：2011-07-18
申请人： Wenfei Jiang , Kangying Cai , Zhibo Chen
发明人： Wenfei Jiang , Kangying Cai , Zhibo Chen
IPC分类号： H04N19/96 , H04N19/44
CPC分类号： H04N19/96 , G06T9/00 , G06T9/001 , G06T9/005 , G06T9/40 , H03M7/40 , H03M7/4056 , H03M7/6088 , H03M7/6094 , H04N19/44
摘要： In 3D mesh coding, the geometry data is compressed by spatial tree based approaches. Bitstreams that result from the traversal of a tree structure of spatial tree based approaches for encoding 3D mesh models have systematically special redundancies, which is exploited for further improving the mesh model compression. A method for encoding a bitstream comprises steps of defining at least a first and a second symbol group of binary symbols, with S1 being a subset of S2, determining within the bitstream first portions, second portions and third portions, wherein first portions have Th1 or more consecutive S1 symbols and second portions have Th2 or more consecutive S2 symbols, encoding the bitstream, wherein first portions, second portions and third portions are encoded using different codes, and encoding values indicating the boundary positions between the first, second and third portions in the bitstream.
摘要翻译：在3D网格编码中，几何数据通过基于空间树的方法进行压缩。通过遍历基于空间树的基于空间树的编码3D网格模型的方法产生的位流具有系统的特殊冗余，被用于进一步改进网格模型压缩。一种用于编码比特流的方法包括以下步骤：定义二进制符号的至少第一和第二符号组，其中S1是S2的子集，在比特流第一部分，第二部分和第三部分内确定其中第一部分具有Th1或更连续的S1符号和第二部分具有Th2或更多个连续的S2符号，对比特流进行编码，其中使用不同的代码对第一部分，第二部分和第三部分进行编码，并且编码指示第一，第二和第三部分之间的边界位置的值比特流。

9. 发明授权

US10311635B2 Method and apparatus for detecting repetitive structures in 3D mesh models 有权
公开(公告)号：US10311635B2
公开(公告)日：2019-06-04
申请号：US13807322
申请日：2010-06-30
申请人： Kangying Cai , Weiwei Li , Zhibo Chen
发明人： Kangying Cai , Weiwei Li , Zhibo Chen
IPC分类号： G06K9/00 , G06K9/46 , G06K9/48 , G06T17/10 , G06T19/00
摘要： Discovering repetitive structures in 3D models is a challenging task. A method for detecting repetitive structures in 3D models comprises sampling the 3D model using a current sampling step size, detecting repetitive structures and remaining portions of the model, determining a representative for each of the one or more repetitive structures, and as long as the detecting step yields one or more repetitive structures, reducing the current sampling step size and repeating the steps of sampling and detecting for each detected representative of a detected repetitive structure and for the remaining portions of the model, wherein the reduced sampling step size is used. The described method and device can e.g. be used for 3D model compression, 3D model repairing, or geometry synthesis.

10. 发明授权

US09532056B2 Method for adaptive entropy coding of tree structures 有权
标题翻译：树结构自适应熵编码方法
公开(公告)号：US09532056B2
公开(公告)日：2016-12-27
申请号：US14233519
申请日：2011-07-18
申请人： Wenfei Jiang , Kangying Cai , Zhibo Chen
发明人： Wenfei Jiang , Kangying Cai , Zhibo Chen
IPC分类号： H04N7/12 , H03M5/00 , H04N19/96 , G06T9/40 , G06T9/00 , H04N19/44 , H03M7/30 , H03M7/40
CPC分类号： H04N19/96 , G06T9/00 , G06T9/001 , G06T9/005 , G06T9/40 , H03M7/40 , H03M7/4056 , H03M7/6088 , H03M7/6094 , H04N19/44
摘要： In 3D mesh coding, the geometry data is compressed by spatial tree based approaches. Bitstreams that result from the traversal of a tree structure of spatial tree based approaches for encoding 3D mesh models have systematically special redundancies, which is exploited for further improving the mesh model compression. A method for encoding a bitstream comprises steps of defining at least a first and a second symbol group of binary symbols, with S1 being a subset of S2, determining within the bitstream first portions, second portions and third portions, wherein first portions have Th1 or more consecutive S1 symbols and second portions have Th2 or more consecutive S2 symbols, encoding the bitstream, wherein first portions, second portions and third portions are encoded using different codes, and encoding values indicating the boundary positions between the first, second and third portions in the bitstream.
摘要翻译：在3D网格编码中，几何数据通过基于空间树的方法进行压缩。通过遍历基于空间树的基于空间树的编码3D网格模型的方法产生的位流具有系统的特殊冗余，被用于进一步改进网格模型压缩。一种用于编码比特流的方法包括以下步骤：定义二进制符号的至少第一和第二符号组，其中S1是S2的子集，在比特流第一部分，第二部分和第三部分内确定其中第一部分具有Th1或更连续的S1符号和第二部分具有Th2个或更多个连续的S2符号，对比特流进行编码，其中使用不同的代码对第一部分，第二部分和第三部分进行编码，并且编码指示第一，第二和第三部分之间的边界位置的值比特流。

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