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21. 发明公开

EP2622579A1 METHOD AND APPARATUS FOR ENCODING GEOMETRY PATTERNS, AND METHOD AND APPARATUS FOR DECODING GEOMETRY PATTERNS 审中-公开
标题翻译：方法和设备的几何图案FOR解码几何图案加密和方法及装置
公开(公告)号：EP2622579A1
公开(公告)日：2013-08-07
申请号：EP10857646.3
申请日：2010-09-30
申请人： Thomson Licensing
发明人： CAI, Kangying , YANG, Jiheng , TENG, Jun , XIA, Zhijin
IPC分类号： G06T15/00
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 (CRS). A method for encoding a plurality of geometry patterns comprises detecting and encoding identical copies of geometrical patterns (100), detecting and clustering similar geometry patterns (200), and detecting partial similarity (300). The detecting partial similarity (300) 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.

22. 发明授权

EP2417705B1 METHOD AND DEVICE FOR ENCODING AN INPUT BIT SEQUENCE AND CORRESPONDING DECODING METHOD AND DEVICE 有权转让
标题翻译：方法和装置用于编码输入位和相应的解码方法及设备
公开(公告)号：EP2417705B1
公开(公告)日：2013-03-13
申请号：EP10711692.3
申请日：2010-03-30
申请人： Thomson Licensing
发明人： CHEN, Quqing , CAI, Kangying , CHEN, Zhibo , TENG, Jun
IPC分类号： H03M5/14
CPC分类号： H03M5/14 , H03M7/30

23. 发明授权

EP2311266B1 VIDEO CODING WITH CODING OF THE LOCATIONS OF SIGNIFICANT COEFFICIENTS IN A BLOCK OF COEFFICIENTS 有权转让
标题翻译：使用系数块对重要系数位置进行编码的视频编码
公开(公告)号：EP2311266B1
公开(公告)日：2018-01-10
申请号：EP09806418.1
申请日：2009-08-07
申请人： Thomson Licensing
发明人： AN, Jicheng , CHEN, Quqing , CHEN, Zhibo , TENG, Jun
IPC分类号： H04N19/103 , H04N19/149 , H04N19/15 , H04N19/176
CPC分类号： H04N19/176 , H04N19/103 , H04N19/149 , H04N19/15 , H04N19/18 , H04N19/194 , H04N19/91 , H04N19/93
摘要： In known image compression, following quantisation, a very sparse distribution of significant (i.e. non-zero) amplitude coefficients of the transformed image signal may be obtained while most quantised coefficients are zeros. A costly task for a transform-based image compression in terms of resulting overall data rate is to record the locations of such significant coefficients within the coding blocks. In quartation processing, a 'significant square' (containing at least one non-zero amplitude coefficient in the coefficient block) is recursively divided into four smaller squares until single significant coefficients are reached, and the significance statuses of all generated squares are encoded. However, for some distribution patterns encoding the x-y-coordinates of the significant coefficients as binary numbers will lead to less coding cost. According to the invention, at least four different pattern determination or encoding modes are checked, and the encoding side selects the least costly one of these modes and transfers the corresponding mode information to the decoding side for corresponding decoding.

24. 发明授权

EP2417578B1 METHOD AND DEVICE FOR ENCODING AND DECODING OF SYMBOL SEQUENCES WHEREIN EACH SYMBOL MAY HAVE ONE OUT OF THREE OR MORE POSSIBLE SYMBOL VALUES 有权转让
标题翻译：用于对符号序列进行编码和解码的方法和装置，其中每个符号可能具有三个或更多可能的符号值中的一个
公开(公告)号：EP2417578B1
公开(公告)日：2017-08-30
申请号：EP10712068.5
申请日：2010-03-30
申请人： Thomson Licensing
发明人： CHEN, Quqing , CAI, Kangying , TENG, Jun , CHEN, Zhibo
IPC分类号： H04N19/91 , G06T9/00 , H03M7/30
CPC分类号： G06T9/001 , G06T9/005 , H03M7/30 , H04N19/91

25. 发明授权

EP2441049B1 METHOD FOR ENCODING/DECODING A 3D MESH MODEL THAT COMPRISES ONE OR MORE COMPONENTS 有权转让
标题翻译：用于编码/ A方法进行解码的三维网格模型，其包括一个或多个部件
公开(公告)号：EP2441049B1
公开(公告)日：2014-01-01
申请号：EP10725092.0
申请日：2010-06-09
申请人： Thomson Licensing
发明人： CAI, Kangying , CHEN, Qu Qing , TENG, Jun
IPC分类号： G06T9/00
CPC分类号： G06T9/001 , G06T9/004

26. 发明公开

EP2656317A1 3D MESH MODEL AND METHOD FOR CREATING THE 3D MESH MODEL 审中-公开
标题翻译： 3D-MESH-MODELL UND VERFAHREN ZUR ERSTELLUNG DES 3D-MESH-MODELLS
公开(公告)号：EP2656317A1
公开(公告)日：2013-10-30
申请号：EP10861121.1
申请日：2010-12-23
申请人： Thomson Licensing
发明人： CAI, Kangying , CHEN, Zhibo , MENG, Weiliang , TENG, Jun
IPC分类号： G06T17/00
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 (pts), an electronic pattern-instance record table (pt1, pt2) comprising first and second instance data, wherein the first instance data points (*pt1) to the first reference 3D mesh model and the second instance data points (*pt2) 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 comprises 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，包括第一和第二实例数据的电子模式实例记录表，其中第一实例数据指向第一参考3D网格模型，而第二实例数据指向第一参考3D网格模型或另一参考3D网格模型，以及用于至少一个辅助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。

27. 发明公开

EP2643817A1 METHOD FOR ANIMATING CHARACTERS, WITH COLLISION AVOIDANCE BASED ON TRACING INFORMATION 审中-公开
标题翻译：基于信息的追求具有冲突避免的性状的动画制作方法
公开(公告)号：EP2643817A1
公开(公告)日：2013-10-02
申请号：EP11843211.1
申请日：2011-11-28
申请人： Thomson Licensing
发明人： XIA, Zhijin , TENG, Jun , CAI, Kangying , CHEN, Zhibo
IPC分类号： 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 manoeuvre is necessary then updating the tracing information in the current terrain cell.

28. 发明公开

EP2441049A2 METHOD FOR ENCODING/DECODING A 3D MESH MODEL THAT COMPRISES ONE OR MORE COMPONENTS 有权转让
标题翻译：用于编码/ A方法进行解码的三维网格模型，其包括一个或多个部件
公开(公告)号：EP2441049A2
公开(公告)日：2012-04-18
申请号：EP10725092.0
申请日：2010-06-09
申请人： Thomson Licensing
发明人： CAI, Kangying , CHEN, Qu Qing , TENG, Jun
IPC分类号： G06T9/00
CPC分类号： G06T9/001 , G06T9/004
摘要： 3D mesh models are represented by three types of data: connectivity data, geometry data and property data. The surface of a 3D object is a triangle mesh. 3D meshes contain huge amounts of data that need to be compressed efficiently. Additionally to the common world coordinate system (WCS) for the complete model and local coordinate system (LCS) for a single triangle, an individual component coordinate system (CCS) for each connected component is used. The component coordinate system (CCS) is used to normalize (53) the orientation of the respective component for quantization and dequantization. This improves the accuracy of encoded 3D mesh models after quantization/de-quantization, particularly if a 3D mesh model comprises one or more distinct components.

29. 发明公开

EP2417705A1 METHOD AND DEVICE FOR ENCODING AN INPUT BIT SEQUENCE AND CORRESPONDING DECODING METHOD AND DEVICE 有权转让
标题翻译：方法和装置用于编码输入位和相应的解码方法及设备
公开(公告)号：EP2417705A1
公开(公告)日：2012-02-15
申请号：EP10711692.3
申请日：2010-03-30
申请人： Thomson Licensing
发明人： CHEN, Quqing , CAI, Kangying , CHEN, Zhibo , TENG, Jun
IPC分类号： H03M5/14
CPC分类号： H03M5/14 , H03M7/30
摘要： The invention is made in the technical field of encoding and decoding of bit sequences. The invention proposes a device for compression-encoding an input bit sequence (IBS) in which Zeroes and Ones occur equally frequent, comprising an XOR gate (XOR) adapted for receiving pairs of immediately succeeding bits of the input bit sequence (IBS) as inputs and for outputting further bits of an other bit sequence (OBS), means for adding a bit to said other bit sequence (OBS) wherein the added bit is a primary bit which is equal to a primary bit of the input bit sequence (IBS) or a last bit which is equal to a last bit of the input bit sequence (IBS), and means for encoding the other sequence. The XOR gate (XOR) transforms the input bit sequence (IBS) into the other bit sequence (OBS) which comprises more uneven frequencies of occurrence of Zeroes and Ones than the input bit sequence (IBS).

30. 发明公开

EP2164176A1 Method for lossless compressing prefix-suffix-codes, method for decompressing a bit sequence representing integers or symbols encoded in compressed prefix-suffix-codes and storage medium or signal carrying compressed prefix-suffix-codes 审中-公开
标题翻译：一种用于无损压缩前缀后缀码的方法，用于解压缩表示压缩的前缀编码的后缀代码整数或符号的比特序列的方法，以及存储介质或信号压缩的前缀后缀码
公开(公告)号：EP2164176A1
公开(公告)日：2010-03-17
申请号：EP08305547.5
申请日：2008-09-12
申请人： Thomson Licensing
发明人： AN, Jicheng , CHEN, Quqing , CHEN, Zhibo , TENG, Jun
IPC分类号： H03M7/40
CPC分类号： H03M7/40
摘要： The invention is related to lossless compression of prefix-suffix-codes wherein a prefix comprises unary code, and to corresponding decompression.
The method for lossless compressing prefix-suffix-codes (VLC1, VLC2, VLC3) comprises the steps of forming a first contiguous bit sequence (FBS) from the prefixes (PRFX1, PRFX2, PRFX3), and lossless compressing the first contiguous bit sequence (FBS) by removing redundancy related to the difference between the first value's frequency in the first contiguous bit sequence (FBS) and the second value's frequency in the first contiguous bit sequence (FBS).
Bit values are unevenly distributed in the prefixes while distribution of bit values in the suffixes is more even. Therefore, better compression is achievable if the prefixes are compressed separately.
摘要翻译：本发明涉及的前缀后缀码的无损压缩worin前缀包括一元码，以及相应的减压。对于无损压缩前缀后缀码（VLC1，VLC2，VLC3）的方法，包括：形成从所述前缀（PRFX1，PRFX2，PRFX3）第一连续比特序列（FBS），和无损压缩第一连续比特序列的步骤（ FBS）通过去除与第一连续比特序列（FBS）和所述第二值的所述第一连续比特序列（FBS）中在频率的第一值的频率之间的差的冗余。位值分布不均匀的前缀，而在后缀位值的分布更加均匀。因此，如果前缀分别被压缩更好的压缩是可以实现的。

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