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1. 发明授权

US08009069B2 Method and device for encoding a bit sequence 有权
标题翻译：用于编码位序列的方法和设备
公开(公告)号：US08009069B2
公开(公告)日：2011-08-30
申请号：US12657246
申请日：2010-01-15
申请人： Qu Qing Chen , Zhi Bo Chen , Kang Ying Cai , Jun Teng
发明人： Qu Qing Chen , Zhi Bo Chen , Kang Ying Cai , Jun Teng
IPC分类号： H03M7/40
CPC分类号： H03M7/40
摘要： The invention is related to a method and a device for encoding of a bit sequence. Said method comprises generating, for each run of Ones comprised in the bit sequence, a unary representation of length of the respective run of Ones, generating a first sequence by concatenating the generated unary representations of lengths of runs of Ones, generating, for each run of Zeroes comprised in the bit sequence, a unary representation of the length of the respective run of Zeroes, generating a second sequence by concatenating the generated unary representations of lengths of runs of Zeroes, and bit plane encoding the generated first and second sequence of unary representations. In most cases, overall entropy of bit planes of unary representations of run lengths is smaller than entropy of the bit sequence. Thus, more compact encoding can be achieved.
摘要翻译：本发明涉及一种用于编码比特序列的方法和装置。所述方法包括为包含在比特序列中的每个游程生成Ones的相应运行的长度的一元表示，通过连接Ones的运行长度的所生成的一元表示来生成第一序列，为每个运行生成包括在比特序列中的零的一元表示，相应的零运行的长度的一元表示，通过连接产生的零的运行长度的所生成的一元表示以及生成的第一和第二序列的位平面编码来生成第二序列表示在大多数情况下，游程长度的一元表示的位平面的总熵小于比特序列的熵。因此，可以实现更紧凑的编码。

2. 发明申请

US20100194610A1 Method and device for encoding a bit sequence 有权
标题翻译：用于编码位序列的方法和设备
公开(公告)号：US20100194610A1
公开(公告)日：2010-08-05
申请号：US12657246
申请日：2010-01-15
申请人： Qu Qing Chen , Zhi Bo Chen , Kang Ying Cai , Jun Teng
发明人： Qu Qing Chen , Zhi Bo Chen , Kang Ying Cai , Jun Teng
IPC分类号： H03M7/00
CPC分类号： H03M7/40
摘要： The invention is related to a method and a device for encoding of a bit sequence.Said method comprises generating, for each run of Ones comprised in the bit sequence, a unary representation of length of the respective run of Ones, generating a first sequence by concatenating the generated unary representations of lengths of runs of Ones, generating, for each run of Zeroes comprised in the bit sequence, a unary representation of the length of the respective run of Zeroes, generating a second sequence by concatenating the generated unary representations of lengths of runs of Zeroes, and bit plane encoding the generated first and second sequence of unary representations.In most cases, overall entropy of bit planes of unary representations of run lengths is smaller than entropy of the bit sequence. Thus, more compact encoding can be achieved.
摘要翻译：本发明涉及一种用于编码比特序列的方法和装置。所述方法包括为包含在比特序列中的每个游程生成Ones的相应运行的长度的一元表示，通过连接Ones的运行长度的所生成的一元表示来生成第一序列，为每个运行生成包括在比特序列中的零的一元表示，相应的零运行的长度的一元表示，通过连接产生的零的运行长度的所生成的一元表示以及生成的第一和第二序列的位平面编码生成第二序列表示在大多数情况下，游程长度的一元表示的位平面的总熵小于比特序列的熵。因此，可以实现更紧凑的编码。

3. 发明授权

US08514109B2 Method and device for encoding an input bit sequence and corresponding decoding method and device 有权
标题翻译：用于编码输入比特序列的方法和装置以及相应的解码方法和装置
公开(公告)号：US08514109B2
公开(公告)日：2013-08-20
申请号：US13138715
申请日：2010-03-30
申请人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
发明人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
IPC分类号： H03M7/30
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 in which Zeroes and Ones occur equally frequent, comprising an XOR gate adapted for receiving pairs of immediately succeeding bits of the input bit sequence as inputs and for outputting further bits of another bit sequence, means for adding a bit to said other bit sequence wherein the added bit is a primary bit which is equal to a primary bit of the input bit sequence or a last bit which is equal to a last bit of the input bit sequence, and means for encoding the other sequence. The XOR gate transforms the input bit sequence into the other bit sequence which comprises more uneven frequencies of occurrence of Zeroes and Ones than the input bit sequence.
摘要翻译：本发明是在比特序列的编码和解码的技术领域中进行的。本发明提出了一种对输入比特序列进行压缩编码的装置，其中零和等于频繁出现，包括适合于接收输入比特序列的紧随后排的对的XOR门作为输入，并用于输出另一比特序列的其他比特，用于向所述其他比特序列添加比特的装置，其中所述相加比特是等于所述输入比特序列的主比特或等于所述输入比特序列的最后比特的最后比特的主比特;以及装置用于编码其他序列。 XOR门将输入比特序列转换为另一个比特序列，其中包括比输入比特序列更多的不均匀出现零和零的频率。

4. 发明申请

US20120019403A1 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
标题翻译：用于编码和解码每个符号的符号序列的方法和设备可能有三个或更多可能的符号值
公开(公告)号：US20120019403A1
公开(公告)日：2012-01-26
申请号：US13138717
申请日：2010-03-30
申请人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
发明人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
IPC分类号： H03M7/34
CPC分类号： G06T9/001 , G06T9/005 , H03M7/30 , H04N19/91
摘要： A method for compressing a symbol sequence, wherein each symbol may have one out of three or more possible symbol values, said method comprises the steps of modifying the symbol sequence by replacing each run pair, which contains a first run of symbols of a most frequent symbol value and a second run of symbols of a second most frequent symbol value, by a further symbol value not comprised in the three or more possible symbol values, generating a binary sequence comprising all replaced run pairs and compression encoding the binary sequence and the modified symbol sequence.
摘要翻译：一种用于压缩符号序列的方法，其中每个符号可以具有三个或更多个可能的符号值中的一个，所述方法包括以下步骤：通过替换每个运行对来修改符号序列，每个运行对包含最频繁的符号的第一行符号值和第二最常用符号值的符号的第二次运行，通过未包括在三个或更多个可能的符号值中的另外的符号值，生成包括所有替换的运行对的二进制序列和对二进制序列进行压缩编码和经修改的符号序列。

5. 发明申请

US20120013491A1 METHOD AND DEVICE FOR ENCODING AN INPUT BIT SEQUENCE AND CORRESPONDING DECODING METHOD AND DEVICE 有权
标题翻译：用于编码输入位序列和对应解码方法和设备的方法和设备
公开(公告)号：US20120013491A1
公开(公告)日：2012-01-19
申请号：US13138715
申请日：2010-03-30
申请人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
发明人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
IPC分类号： H03M7/30 , H03M7/40
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 in which Zeroes and Ones occur equally frequent, comprising an XOR gate adapted for receiving pairs of immediately succeeding bits of the input bit sequence as inputs and for outputting further bits of another bit sequence, means for adding a bit to said other bit sequence wherein the added bit is a primary bit which is equal to a primary bit of the input bit sequence or a last bit which is equal to a last bit of the input bit sequence, and means for encoding the other sequence. The XOR gate transforms the input bit sequence into the other bit sequence which comprises more uneven frequencies of occurrence of Zeroes and Ones than the input bit sequence.
摘要翻译：本发明是在比特序列的编码和解码的技术领域中进行的。本发明提出了一种对输入比特序列进行压缩编码的装置，其中零和等于频繁出现，包括适合于接收输入比特序列的紧随后排的对的XOR门作为输入，并用于输出另一比特序列的其他比特，用于向所述其他比特序列添加比特的装置，其中所述相加比特是等于所述输入比特序列的主比特或等于所述输入比特序列的最后比特的最后比特的主比特;以及装置用于编码其他序列。 XOR门将输入比特序列转换为另一个比特序列，其中包括比输入比特序列更多的不均匀出现零和零的频率。

6. 发明授权

US08514107B2 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
标题翻译：用于对符号序列进行编码和解码的方法和装置，其中每个符号可以具有三个或更多个可能符号值中的一个
公开(公告)号：US08514107B2
公开(公告)日：2013-08-20
申请号：US13138717
申请日：2010-03-30
申请人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
发明人： Qu Qing Chen , Kang Ying Cai , Zhi Bo Chen , Jun Teng
IPC分类号： H03M7/30
CPC分类号： G06T9/001 , G06T9/005 , H03M7/30 , H04N19/91
摘要： A method for compressing a symbol sequence, wherein each symbol may have one out of three or more possible symbol values, said method comprises the steps of modifying the symbol sequence by replacing each run pair, which contains a first run of symbols of a most frequent symbol value and a second run of symbols of a second most frequent symbol value, by a further symbol value not comprised in the three or more possible symbol values, generating a binary sequence comprising all replaced run pairs and compression encoding the binary sequence and the modified symbol sequence.
摘要翻译：一种用于压缩符号序列的方法，其中每个符号可以具有三个或更多个可能的符号值中的一个，所述方法包括以下步骤：通过替换每个运行对来修改符号序列，每个运行对包含最频繁的符号的第一行符号值和第二最常用符号值的符号的第二次运行，通过未包括在三个或更多个可能的符号值中的另外的符号值，生成包括所有替换的运行对的二进制序列和对二进制序列进行压缩编码和经修改的符号序列。

7. 发明申请

US20120075302A1 METHOD FOR ENCODING/DECODING A 3D MESH MODEL THAT COMPRISES ONE OR MORE COMPONENTS 有权
标题翻译：用于编码/解码包含一个或多个组件的3D网格模型的方法
公开(公告)号：US20120075302A1
公开(公告)日：2012-03-29
申请号：US13376604
申请日：2010-06-09
申请人： Kang Ying Cai , Qu Qing Chen , Jun Teng
发明人： Kang Ying Cai , Qu Qing Chen , Jun Teng
IPC分类号： G06T17/00
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 for the complete model and local coordinate system for a single triangle, an individual component coordinate system for each connected component is used. The component coordinate system is used to normalize the orientation of the respective component for quantization and de-quantization. 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.
摘要翻译： 3D网格模型由三种类型的数据表示：连接数据，几何数据和属性数据。 3D对象的表面是三角形网格。 3D网格包含大量需要高效压缩的数据。除了用于单个三角形的完整模型和局部坐标系的公共世界坐标系之外，还使用每个连接分量的单个分量坐标系。分量坐标系用于归一化用于量化和去量化的各个分量的取向。这提高了量化/去量化之后的编码3D网格模型的精度，特别是如果3D网格模型包括一个或多个不同的分量。

8. 发明申请

US20110285708A1 METHOD AND APPARATUS FOR ENCODING 3D MESH MODELS, AND METHOD AND APPARATUS FOR DECODING ENCODED 3D MESH MODELS 有权
标题翻译：用于编码3D网格模型的方法和装置，以及用于解码编码的3D网格模型的方法和装置
公开(公告)号：US20110285708A1
公开(公告)日：2011-11-24
申请号：US13138297
申请日：2010-02-05
申请人： Qu Qing Chen , Kang Ying Cai , Jun Teng
发明人： Qu Qing Chen , Kang Ying Cai , Jun Teng
IPC分类号： G06T17/20
CPC分类号： G06T9/001 , G06T9/004
摘要： 3D mesh models are widely used in various applications for representing 3D objects. These models are made of vertices and corresponding triangles, which can be compressed based on prediction and residuals. The present invention improves the accuracy of parallelogram prediction, particularly near sharp features. The proposed 3D mesh model encoding comprises analyzing the spatial or dihedral angles between triangles, clustering triangles with similar or equal dihedral angles, and defining a representative dihedral angle for each cluster. Triangles of each cluster are then encoded relative to individual prediction triangles having the representative dihedral angle according to the cluster. Additionally, the prediction triangle may be mirrored. An indication of the encoding mode is inserted into each vertex of the encoded bitstream. A decoder extracts the encoding mode indication, reconstructs the individual prediction triangles based on the respective representative dihedral angles and performs triangle prediction and reconstruction.
摘要翻译： 3D网格模型广泛用于表示3D对象的各种应用中。这些模型由顶点和相应的三角形组成，可以根据预测和残差进行压缩。本发明提高了平行四边形预测的精度，特别是在尖锐特征附近。所提出的3D网格模型编码包括分析三角形之间的空间或二面角，具有相似或相等二面角的聚类三角形，并为每个簇定义代表性的二面角。然后，针对根据簇的具有代表性的二面角的各个预测三角形对每个簇的三角形进行编码。另外，可以镜像预测三角形。将编码模式的指示插入编码比特流的每个顶点。解码器提取编码模式指示，基于相应的代表性二面角重建各个预测三角形，并执行三角形预测和重构。

9. 发明授权

US09245355B2 Method for encoding/decoding a 3D mesh model that comprises one or more components 有权
标题翻译：用于对包含一个或多个组件的3D网格模型进行编码/解码的方法
公开(公告)号：US09245355B2
公开(公告)日：2016-01-26
申请号：US13376604
申请日：2010-06-09
申请人： Kang Ying Cai , Qu Qing Chen , Jun Teng
发明人： Kang Ying Cai , Qu Qing Chen , Jun Teng
IPC分类号： G06T19/00 , 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 for the complete model and local coordinate system for a single triangle, an individual component coordinate system for each connected component is used. The component coordinate system is used to normalize the orientation of the respective component for quantization and de-quantization. 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.
摘要翻译： 3D网格模型由三种类型的数据表示：连接数据，几何数据和属性数据。 3D对象的表面是三角形网格。 3D网格包含大量需要高效压缩的数据。除了用于单个三角形的完整模型和局部坐标系的公共世界坐标系之外，还使用每个连接分量的单个分量坐标系。分量坐标系用于归一化用于量化和去量化的各个分量的取向。这提高了量化/去量化之后的编码3D网格模型的精度，特别是如果3D网格模型包括一个或多个不同的分量。

10. 发明授权

US08884953B2 Method and apparatus for encoding 3D mesh models, and method and apparatus for decoding encoded 3D mesh models 有权
标题翻译：用于编码3D网格模型的方法和装置，以及用于解码编码的3D网格模型的方法和装置
公开(公告)号：US08884953B2
公开(公告)日：2014-11-11
申请号：US13138297
申请日：2010-02-05
申请人： Qu Qing Chen , Kang Ying Cai , Jun Teng
发明人： Qu Qing Chen , Kang Ying Cai , Jun Teng
IPC分类号： G06T17/20 , G06T9/00
CPC分类号： G06T9/001 , G06T9/004
摘要： 3D mesh models are widely used in various applications for representing 3D objects. These models are made of vertices and corresponding triangles, which can be compressed based on prediction and residuals. The present invention improves the accuracy of parallelogram prediction, particularly near sharp features. The proposed 3D mesh model encoding comprises analyzing the spatial or dihedral angles between triangles, clustering triangles with similar or equal dihedral angles, and defining a representative dihedral angle for each cluster. Triangles of each cluster are then encoded relative to individual prediction triangles having the representative dihedral angle according to the cluster. Additionally, the prediction triangle may be mirrored. An indication of the encoding mode is inserted into each vertex of the encoded bitstream. A decoder extracts the encoding mode indication, reconstructs the individual prediction triangles based on the respective representative dihedral angles and performs triangle prediction and reconstruction.
摘要翻译： 3D网格模型广泛用于表示3D对象的各种应用中。这些模型由顶点和相应的三角形组成，可以根据预测和残差进行压缩。本发明提高了平行四边形预测的精度，特别是在尖锐特征附近。所提出的3D网格模型编码包括分析三角形之间的空间或二面角，具有相似或相等二面角的聚类三角形，并为每个簇定义代表性的二面角。然后，针对根据簇的具有代表性的二面角的各个预测三角形对每个簇的三角形进行编码。另外，可以镜像预测三角形。将编码模式的指示插入编码比特流的每个顶点。解码器提取编码模式指示，基于相应的代表性二面角重建各个预测三角形，并执行三角形预测和重构。

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