公开(公告)号：US20140362182A1

公开(公告)日：2014-12-11

申请号：US14372901

申请日：2012-04-12

申请人： Feifei He ,  Jian Hui ,  Gengmao Sun ,  Feng Gao ,  Zhibin Pan ,  Da Li ,  Jingyuan Li

发明人： Feifei He ,  Jian Hui ,  Gengmao Sun ,  Feng Gao ,  Zhibin Pan ,  Da Li ,  Jingyuan Li

IPC分类号： H04N13/00 ,  H04N19/597

CPC分类号： H04N13/161 ,  G06T9/001 ,  G06T9/008 ,  H04N19/94

摘要： A device for compressing vertex data in three-dimensional (3D) image data includes a codebook design module and a codeword search module. The codebook design module is configured for: grouping residual vectors of vertices in 3D image data for codebook design; generating, for each group of residual vectors, a sub-codebook formed by a specified number of codewords; and sending the generated sub-codebook corresponding to a group of residual vectors to the codeword search module. The codeword search module is configured for: receiving a sub-codebook sent by the codebook design module; searching for a codeword of optimal match of a to-be-compressed residual vector of a vertex in 3D image data to be compressed; and taking an index of the codeword of optimal match and an index of a sub-codebook where the codeword of optimal match is located as compressed data of the vertex. A method for compressing vertex data in 3D image data is further disclosed. With the disclosure, it is possible to save codeword storage space, enhance encoding quality, improve a compression ratio of vertex data, and increase a compression efficiency.

摘要翻译： 用于在三维（3D）图像数据中压缩顶点数据的装置包括码本设计模块和码字搜索模块。 码本设计模块被配置为：对用于码本设计的3D图像数据中的顶点的残差向量进行分组; 针对每组剩余向量生成由指定数量的码字形成的子码本; 以及将生成的与一组残差向量对应的子码本发送到码字搜索模块。 码字搜索模块被配置为：接收由码本设计模块发送的子码本; 搜索待压缩的3D图像数据中要被压缩的顶点残留矢量的最佳匹配的码字; 并且获取最佳匹配的码字的索引和最佳匹配的码字所在的子码本的索引作为顶点的压缩数据。 还公开了一种用于压缩3D图像数据中的顶点数据的方法。 通过该公开，可以节省码字存储空间，提高编码质量，提高顶点数据的压缩率，提高压缩效率。

公开(公告)号：US09509973B2

公开(公告)日：2016-11-29

申请号：US14372901

申请日：2012-04-12

申请人： Feifei He ,  Jian Hui ,  Gengmao Sun ,  Feng Gao ,  Zhibin Pan ,  Da Li ,  Jingyuan Li

发明人： Feifei He ,  Jian Hui ,  Gengmao Sun ,  Feng Gao ,  Zhibin Pan ,  Da Li ,  Jingyuan Li

IPC分类号： H04N13/00 ,  G06T9/00 ,  H04N19/94

CPC分类号： H04N13/161 ,  G06T9/001 ,  G06T9/008 ,  H04N19/94

摘要： A device for compressing vertex data in three-dimensional (3D) image data includes a codebook design module and a codeword search module. The codebook design module is configured for: grouping residual vectors of vertices in 3D image data for codebook design; generating, for each group of residual vectors, a sub-codebook formed by a specified number of codewords; and sending the generated sub-codebook corresponding to a group of residual vectors to the codeword search module. The codeword search module is configured for: receiving a sub-codebook sent by the codebook design module; searching for a codeword of optimal match of a to-be-compressed residual vector of a vertex in 3D image data to be compressed; and taking an index of the codeword of optimal match and an index of a sub-codebook where the codeword of optimal match is located as compressed data of the vertex. A method for compressing vertex data in 3D image data is further disclosed. With the disclosure, it is possible to save codeword storage space, enhance encoding quality, improve a compression ratio of vertex data, and increase a compression efficiency.

摘要翻译： 用于在三维（3D）图像数据中压缩顶点数据的装置包括码本设计模块和码字搜索模块。 码本设计模块被配置为：对用于码本设计的3D图像数据中的顶点的残差向量进行分组; 针对每组剩余向量生成由指定数量的码字形成的子码本; 以及将生成的与一组残差向量对应的子码本发送到码字搜索模块。 码字搜索模块被配置为：接收由码本设计模块发送的子码本; 搜索待压缩的3D图像数据中要被压缩的顶点残留矢量的最佳匹配的码字; 并且获取最佳匹配的码字的索引和最佳匹配的码字所在的子码本的索引作为顶点的压缩数据。 还公开了一种用于压缩3D图像数据中的顶点数据的方法。 通过该公开，可以节省码字存储空间，提高编码质量，提高顶点数据的压缩率，提高压缩效率。