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61. 发明申请

US20070053600A1 Method and apparatus for encoding and decoding key value data of coordinate interpolator 有权
标题翻译：用于对坐标插值器的键值数据进行编码和解码的方法和装置
公开(公告)号：US20070053600A1
公开(公告)日：2007-03-08
申请号：US11544672
申请日：2006-10-10
申请人： Shin-jun Lee , Seok-yoon Jung , Euee-seon Jang , Sang-oak Woo , Mahn-jin Han , Do-kyoon Kim , Gyeong-ja Jang
发明人： Shin-jun Lee , Seok-yoon Jung , Euee-seon Jang , Sang-oak Woo , Mahn-jin Han , Do-kyoon Kim , Gyeong-ja Jang
IPC分类号： G06K9/46
CPC分类号： H04N19/00 , H03M7/30 , H03M7/40 , H04N19/103 , H04N19/12 , H04N19/126 , H04N19/13 , H04N19/136 , H04N19/14 , H04N19/25 , H04N19/46 , H04N19/537 , H04N19/577 , H04N19/70
摘要： A method and an apparatus for encoding/decoding key value data of a coordinate interpolator used in a three-dimensional graphic animation are provided. The apparatus for encoding key value data of a coordinate interpolator representing the position of each vertex of an object using coordinates of each of the vertices including x, y, and z components includes a quantizer, which quantizes a coordinate interpolator input thereinto with predetermined quantization bits, a DPCM processor, which performs a DPCM operation of a predetermined mode on each component of each vertex of the quantized coordinate interpolator and generates differential data based on the temporal variation of the coordinates of each of the vertices and differential data based on the spatial variation of the coordinates of each of the vertices.
摘要翻译：提供了一种用于对三维图形动画中使用的坐标插值器的键值数据进行编码/解码的方法和装置。用于使用包括x，y和z分量的每个顶点的坐标来表示对象的每个顶点的位置的坐标插值器的键值数据的装置包括量化器，其量化其中具有预定量化位的坐标插值器，DPCM处理器，其对量化坐标插值器的每个顶点的每个分量执行预定模式的DPCM操作，并且基于空间变化的每个顶点和差分数据的坐标的时间变化生成差分数据的每个顶点的坐标。

62. 发明授权

US07181071B2 Method and apparatus for encoding and decoding key value data of orientation interpolator node 有权
公开(公告)号：US07181071B2
公开(公告)日：2007-02-20
申请号：US10305331
申请日：2002-11-27
申请人： Do-kyoon Kim , Seok-yoon Jung , Euee-seon Jang , Sang-oak Woo , Shin-jun Lee , Mahn-jin Han , Gyeong-ja Jang
发明人： Do-kyoon Kim , Seok-yoon Jung , Euee-seon Jang , Sang-oak Woo , Shin-jun Lee , Mahn-jin Han , Gyeong-ja Jang
IPC分类号： G06K9/36
CPC分类号： H04N19/00 , H03M7/30 , H03M7/40 , H04N19/103 , H04N19/12 , H04N19/126 , H04N19/13 , H04N19/136 , H04N19/14 , H04N19/25 , H04N19/46 , H04N19/537 , H04N19/577 , H04N19/70
摘要： A method and an apparatus for encoding key value data of an orientation interpolator representing the rotation of an object in a keyframe image are provided. The apparatus includes a rotational differential data generator which generates, using a rotational transformation value of a current keyframe and a restored rotational transformation value of a previous keyframe, a rotational differential value used to rotate the object by as much as a difference between rotational transformation applied to the object in the current keyframe by key value data and rotational transformation applied to the object in the previous keyframe by key value data, and outputs rotational differential data by quantizing the rotational differential value, a circular DPCM operator which selectively performs a linear DPCM operation or a circular DPCM operation on rotational differential data, and an entropy encoder which entropy-encodes the rotational differential data.

63. 发明申请

US20050131930A1 Method and system for generating input file using meta representation on compression of graphics data, and animation framework extension (AFX) coding method and apparatus 失效
标题翻译：用于在图形数据压缩上使用元表示生成输入文件的方法和系统，以及动画框架扩展（AFX）编码方法和装置
公开(公告)号：US20050131930A1
公开(公告)日：2005-06-16
申请号：US11001117
申请日：2004-12-02
申请人： Gyeong-ja Jang , Do-kyoon Kim
发明人： Gyeong-ja Jang , Do-kyoon Kim
IPC分类号： H03M7/30 , G06F17/00 , H04N5/91 , H04N7/12 , H04N7/24
CPC分类号： H04N21/44012 , H03M7/3077 , H03M7/3079 , H04N21/23412 , H04N21/8146 , H04N21/84 , H04N21/8543 , Y10S707/99942
摘要： Provided are a method and system for generating an input file using meta representation of compression of graphics data, and an animation framework extensions (AFX) encoding method and apparatus. The method of generating an input file includes preparing an extensible MPEG-4 textual (XMT) schema that defines a compression node, encoding parameters, and BitWrapperEncodingHints; preparing an XMT2BIFS style sheet that supports conversion of an input XMT file into a scene file according to the XMT schema, and an XMT2MUX style sheet that supports conversion of the input XMT file into a mux file according to the XMT schema; generating the scene file and the mux file by parsing the input XMT file according to the XMT schema using the XMT2BIFS and XMT2MUX style sheets; determining whether the scene file contains uncompressed graphics data; and compressing the graphics data into a bitstream using the encoding parameters and generating a modified scene file and a modified mux file, when uncompressed graphics data is present in the scene file. Accordingly, it is possible to allow an author to easily express or compress three-dimensional (3D) graphics data using meta representation during authoring of 3D contents and generate an input file that can be input to an MPEG-4 encoder. Therefore, it is possible to visualize 3D graphics data or animation data in real time even at a low network bandwidth.
摘要翻译：提供了使用图形数据的压缩的元表示以及动画框架扩展（AFX）编码方法和装置来生成输入文件的方法和系统。生成输入文件的方法包括准备定义压缩节点，编码参数和BitWrapperEncodingHints的可扩展MPEG-4文本（XMT）模式; 准备一个XMT2BIFS样式表，该表格支持将输入XMT文件转换为根据XMT架构的场景文件;以及XMT2MUX样式表，其支持根据XMT模式将输入的XMT文件转换为多路复用文件; 通过使用XMT2BIFS和XMT2MUX样式表，根据XMT模式解析输入的XMT文件，生成场景文件和mux文件; 确定场景文件是否包含未压缩的图形数据; 以及当所述场景文件中存在未压缩的图形数据时，使用所述编码参数将所述图形数据压缩为比特流并生成修改的场景文件和修改的多路复用文件。因此，可以允许作者在创建3D内容期间使用元表示容易地表达或压缩三维（3D）图形数据，并且生成可输入到MPEG-4编码器的输入文件。因此，即使在较低的网络带宽下也可以实时显示3D图形数据或动画数据。

64. 发明授权

US06850572B2 Encoding/decoding apparatus and method for orientation interpolator node data 失效
标题翻译：用于定向插值器节点数据的编码/解码装置和方法
公开(公告)号：US06850572B2
公开(公告)日：2005-02-01
申请号：US10337264
申请日：2003-01-07
申请人： Sung-jin Kim , Do-kyoon Kim , Seok-yoon Jung , Sang-oak Woo
发明人： Sung-jin Kim , Do-kyoon Kim , Seok-yoon Jung , Sang-oak Woo
IPC分类号： G06T9/00 , H03M7/36 , H03M7/40 , H04N5/262 , H04N19/00 , H04N19/50 , H04N19/59 , H04N19/91 , H04B14/06
CPC分类号： H04N19/25 , H04N19/46 , H04N19/503
摘要： An encoding/decoding apparatus and method for an orientation interpolator node are provided. The encoding/decoding apparatus for an orientation interpolator node, which provides rotational information of an object in a 3-dimensional space, is formed of “key information” which indicates a time when a rotational movement occurs and “key value information” which indicates a rotational posture corresponding to the time. A predictive coding apparatus is used in the encoding process for compressing the information of the key and key value information. Therefore, in encoding an input orientation interpolator node in an information compression method of a predictive encoding method, the efficiency of encoding is improved and an reverse rotation due to an encoding error from lossy coding can be corrected.
摘要翻译：提供了一种用于定向插值器节点的编码/解码装置和方法。用于提供三维空间中的对象的旋转信息的定向内插器节点的编码/解码装置由表示旋转运动的时间的“键信息”和表示“ 对应于时间的旋转姿势。在编码处理中使用预测编码装置来压缩密钥和密钥值信息的信息。因此，在预测编码方式的信息压缩方法中对输入取向内插器节点进行编码时，编码效率得到提高，并且能够纠正由有损编码引起的编码误差引起的反向旋转。

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