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1. 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。

2. 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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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.

8. 发明申请

US20130039594A1 METHOD AND DEVICE FOR ENCODING DATA FOR RENDERING AT LEAST ONE IMAGE USING COMPUTER GRAPHICS AND CORRESPONDING METHOD AND DEVICE FOR DECODING 审中-公开
标题翻译：用于使用计算机图形编辑用于渲染至少一个图像的数据的方法和装置以及相关方法和用于解码的装置
公开(公告)号：US20130039594A1
公开(公告)日：2013-02-14
申请号：US13642147
申请日：2010-04-20
申请人： Quqing Chen , Jun Teng , Zhibo Chen
发明人： Quqing Chen , Jun Teng , Zhibo Chen
IPC分类号： G06K9/36
CPC分类号： H04N19/27 , G06T9/00 , G06T15/005 , H04N19/70
摘要： The invention is made in the field of image codec products. More precisely, the invention relates to encoding and decoding of data for image rendering using computer graphics. A method for decoding data for rendering at least one image using computer graphics is proposed, said method comprising decoding a portion of a bit stream, said portion comprising a syntax element and at least one parameter for a parameter based procedural computer graphics generation method for generating said computer graphics, said syntax element indicating that said portion further comprises said at least one parameter. Further, an apparatus for performing said method is proposed.
摘要翻译：本发明是在图像编解码产品领域进行的。更准确地说，本发明涉及使用计算机图形进行图像渲染的数据的编码和解码。提出了一种用于使用计算机图形来渲染至少一个图像的数据的方法，所述方法包括解码比特流的一部分，所述部分包括语法元素和用于基于参数的程序计算机图形生成方法的至少一个参数，用于生成所述计算机图形，所述语法元素指示所述部分还包括所述至少一个参数。此外，提出了一种用于执行所述方法的装置。

9. 发明授权

US09769501B2 Video quality assessment at a bitstream level 有权
公开(公告)号：US09769501B2
公开(公告)日：2017-09-19
申请号：US14405079
申请日：2012-07-17
申请人： Ning Liao , Zhibo Chen , Kai Xie
发明人： Ning Liao , Zhibo Chen , Kai Xie
IPC分类号： H04N19/895 , H04N19/44 , H04N19/184 , H04N19/139 , H04N19/177 , H04N17/00 , H04N19/86 , H04N19/89 , H04N19/154
CPC分类号： H04N19/895 , H04N17/004 , H04N19/139 , H04N19/154 , H04N19/177 , H04N19/184 , H04N19/44 , H04N19/86 , H04N19/89
摘要： A macroblock in a video sequence may be undecodable because the corresponding compressed data is lost or the syntax is out of synchronization. An undecodable macroblock may be concealed using error concealment technique. The level of initial visible artifacts caused by undecodable macroblocks may be estimated as a function of motion magnitude, error concealment distance, and/or residual energy. The initial visible artifacts may propagate spatially or temporally to other macroblocks through prediction. Considering both initial visible artifacts and propagated artifacts, levels of overall artifacts may be estimated for individual macroblocks. The visual quality for the video sequence can then be estimated by pooling the macroblock level artifact levels.

10. 发明授权

US09323997B2 Distortion/quality measurement 有权
标题翻译：畸变/质量测量
公开(公告)号：US09323997B2
公开(公告)日：2016-04-26
申请号：US14358304
申请日：2011-11-28
申请人： Xiaodong Gu , Kai Xie , Zhibo Chen
发明人： Xiaodong Gu , Kai Xie , Zhibo Chen
IPC分类号： G06K9/03 , H04N17/00
CPC分类号： G06K9/036 , H04N17/004
摘要： Various implementations address distortion and quality measurements related to, for example, freeze-with-skip and/or a freeze-without-skip events. In several implementations, information is accessed indicating that a first and second set of one or more consecutive pictures are not to be displayed. A first and second indicator are determined. In one such implementation, the first and second indicators indicate an amount of distortion across one or more types of distortive effects that result from displaying substantially a first, or second, same picture during a display time for the first, or second, set of pictures. The first and second indicators are combined in a non-linear manner. In another such implementation, the distortion is associated with a given type of distortive effect, from among multiple types of distortive effects, and the first and second indicators are combined for the given type of distortive effect.
摘要翻译：各种实施方案涉及与例如冻结跳过和/或冻结无跳跃事件相关的失真和质量测量。在几个实现中，访问指示不显示第一和第二组一个或多个连续图片的信息。确定第一和第二指示符。在一个这样的实施方案中，第一和第二指示符指示在一个或多个类型的失真效应的失真量，这是由在第一或第二组图像的显示时间期间显示基本上第一或第二相同图像而导致的。第一和第二指标以非线性方式组合。在另一个这样的实现中，失真与多种类型的失真效应中的给定类型的失真效应相关联，并且对于给定类型的失真效应组合第一和第二指示符。

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