公开(公告)号：US07542976B2

公开(公告)日：2009-06-02

申请号：US11112637

申请日：2005-04-22

申请人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

发明人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F3/03545

摘要： In accordance with embodiments of the invention, local metadata is embedded into an embedded interactive code document by combining a first m-array and a second m-array to generate a combined m-array with encoded local metadata such that a start position of the second m-array in the combined m-array is shifted, by an amount that is based on the local metadata, relative to a start position of the first m-array in the combined m-array. The first m-array and the second m-array may contain the same repeating bit sequence. Local metadata may be decoded from the embedded interactive code document by decoding the local metadata from the combined m-array by determining the amount by which the second m-array is shifted, relative to the first m-array, in the combined m-array.

摘要翻译： 根据本发明的实施例，通过组合第一m阵列和第二m阵列来将本地元数据嵌入到嵌入式交互式代码文档中，以生成具有编码的本地元数据的组合m阵列，使得第二m阵列的开始位置 组合的m阵列中的m阵列相对于组合的m阵列中的第一m阵列的开始位置偏移基于本地元数据的量。 第一m阵列和第二m阵列可以包含相同的重复比特序列。 本地元数据可以通过从组合的m阵列中解码本地元数据而从嵌入式交互式代码文档中解码，通过确定第二m阵列相对于第一m阵列在组合的m阵列中被移位的量 。

公开(公告)号：US20060123049A1

公开(公告)日：2006-06-08

申请号：US11121442

申请日：2005-05-04

申请人： Jian Wang ,  Jiang Wu ,  Chunhui Zhang ,  Yingnong Dang ,  Qiang Wang

发明人： Jian Wang ,  Jiang Wu ,  Chunhui Zhang ,  Yingnong Dang ,  Qiang Wang

IPC分类号： G06F17/00

CPC分类号： G06F3/03545 ,  G06F3/0321 ,  G06K19/00 ,  Y10S707/99943 ,  Y10S707/99945

摘要： In accordance with embodiments of the invention, local metadata is embedded into, and extracted from, an embedded interaction code document. A plurality of local-metadata values are assigned, in accordance with a set of local-metadata conflict-resolution rules, via a plurality of respective partial-share channels, to a plurality of respective local-metadata fields. The local metadata is decoded by decoding the partial-share channels and by resolving potentially conflicting decoded local-metadata values according to the set of local-metadata conflict-resolution rules. A local metadata value of a region to the left may be smaller than a local metadata value of a potentially conflicting region to the right, and the values may be non-continuous. A local metadata value of an upper region may be smaller than a local metadata value of a potentially conflicting lower region, and the values may be continuous.

公开(公告)号：US07817816B2

公开(公告)日：2010-10-19

申请号：US11205448

申请日：2005-08-17

申请人： Jian Wang ,  Yingnong Dang ,  Qiang Wang ,  Chunhui Zhang

发明人： Jian Wang ,  Yingnong Dang ,  Qiang Wang ,  Chunhui Zhang

IPC分类号： G06K9/00

CPC分类号： G06K9/22 ,  G06K2009/226

摘要： At least one image captured from a printed document and at least one image captured from a display surface other than a printed document are processed. A surface-type-identification module accepts as input both types of images and identifies, for a particular image, the type of surface from which the image was captured. A display-surface-preprocessing module preprocesses the at least one embedded-interaction-code image captured from a display surface other than a printed document. A printed-document-preprocessing module preprocesses the at least one embedded-interaction-code images captured from a printed document. An embedded-interaction-code-processing module outputs location information for at least one of the at least one image captured from a printed document and the at least one image captured from a display surface other than a printed document.

摘要翻译： 处理从打印文档捕获的至少一个图像和从打印文档以外的显示表面捕获的至少一个图像。 表面类型识别模块接受两种类型的图像作为输入，并且针对特定图像识别捕获图像的表面的类型。 显示表面预处理模块预处理从打印文档以外的显示表面捕获的至少一个嵌入式交互代码图像。 打印文档预处理模块预处理从打印文档捕获的至少一个嵌入式交互代码图像。 嵌入式交互代码处理模块输出从打印文档捕获的至少一个图像中的至少一个图像和从打印文档以外的显示表面捕获的至少一个图像的位置信息。

公开(公告)号：US07528848B2

公开(公告)日：2009-05-05

申请号：US11169744

申请日：2005-06-30

申请人： An Xu ,  Chunhui Zhang ,  Jian Wang ,  Liyong Chen ,  Qiang Wang ,  Yingnong Dang

发明人： An Xu ,  Chunhui Zhang ,  Jian Wang ,  Liyong Chen ,  Qiang Wang ,  Yingnong Dang

IPC分类号： G09G5/00

CPC分类号： G06F3/03545

摘要： A method and system for decoding data on a medium that is captured by an input device is described. The method decodes a symbol design, such as an embedded interaction code (EIC), on a display screen, such as a liquid crystal display (LCD). An image that is captured by an input device, such as a universal pen-type input device with a camera, is received. The captured image is processed to output an extracted bit stream. Position data and/or metadata information is decoded from the extracted bit stream and a position of the captured image with respect to a screen of the LCD is determined based upon the decoded position data. The EIC pattern may be recognized from LCD pixel grids and a bit stream of EIC bits may be extracted based upon the recognized EIC pattern.

摘要翻译： 描述用于对由输入装置捕获的介质上的数据进行解码的方法和系统。 该方法在诸如液晶显示器（LCD）的显示屏上解码符号设计，例如嵌入式交互码（EIC）。 接收由输入装置拍摄的图像，例如具有照相机的通用笔型输入装置。 捕获的图像被处理以输出提取的比特流。 位置数据和/或元数据信息从提取的比特流解码，并且基于解码的位置数据确定捕获图像相对于LCD的屏幕的位置。 可以从LCD像素网格识别EIC图案，并且可以基于所识别的EIC图案来提取EIC位的比特流。

公开(公告)号：US20070041654A1

公开(公告)日：2007-02-22

申请号：US11205448

申请日：2005-08-17

申请人： Jian Wang ,  Yingnong Dang ,  Qiang Wang ,  Chunhui Zhang

发明人： Jian Wang ,  Yingnong Dang ,  Qiang Wang ,  Chunhui Zhang

IPC分类号： G06K9/40

CPC分类号： G06K9/22 ,  G06K2009/226

摘要： At least one image captured from a printed document and at least one image captured from a display surface other than a printed document are processed. A surface-type-identification module accepts as input both types of images and identifies, for a particular image, the type of surface from which the image was captured. A display-surface-preprocessing module preprocesses the at least one embedded-interaction-code image captured from a display surface other than a printed document. A printed-document-preprocessing module preprocesses the at least one embedded-interaction-code images captured from a printed document. An embedded-interaction-code-processing module outputs location information for at least one of the at least one image captured from a printed document and the at least one image captured from a display surface other than a printed document.

摘要翻译： 处理从打印文档捕获的至少一个图像和从打印文档以外的显示表面捕获的至少一个图像。 表面类型识别模块接受两种类型的图像作为输入，并且针对特定图像识别捕获图像的表面的类型。 显示表面预处理模块预处理从打印文档以外的显示表面捕获的至少一个嵌入式交互代码图像。 打印文档预处理模块预处理从打印文档捕获的至少一个嵌入式交互代码图像。 嵌入式交互代码处理模块输出从打印文档捕获的至少一个图像中的至少一个图像和从打印文档以外的显示表面捕获的至少一个图像的位置信息。

公开(公告)号：US20060242561A1

公开(公告)日：2006-10-26

申请号：US11112672

申请日：2005-04-22

申请人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

发明人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

IPC分类号： G06F17/00

CPC分类号： G06F17/242 ,  G06F3/0321 ,  G06F3/03545

摘要： In accordance with embodiments of the invention, global metadata, such as a document identifier, which may be a globally unique identifier, is embedded into an embedded interactive code document by combining a first m-array and a plurality of copies of the first m-array to generate a combined m-array with encoded global metadata such that respective start positions (xd,yd)i of the plurality of copies of the first m-array in the combined m-array are each shifted, by respective amounts that are based on respective portions of the global metadata, relative to a start position of the first m-array in the combined m-array. Global metadata may be decoded from the combined m-array by determining the respective amounts by which the plurality of copies of the first m-array are shifted, relative to the first m-array, in the combined m-array and by combining the respective amounts to produce a decoded value of the global metadata.

摘要翻译： 根据本发明的实施例，通过组合第一m阵列和第一m-阵列的多个副本，将嵌入式交互式代码文档中的全局元数据（诸如可以是全局唯一标识符的文档标识符）嵌入到嵌入式交互式代码文档中， 阵列以生成具有编码的全局元数据的组合的m阵列，使得多个的数组的相应起始位置（x，d，y，...） 组合的m阵列中的第一m阵列的副本相对于组合的m阵列中的第一m阵列的开始位置分别移位相应于全局元数据的相应部分的量。 可以通过确定在组合的m阵列中第一m阵列的多个副本相对于第一m阵列移位的相应量，并通过组合相应的数组来组合全局元数据 相当于产生全局元数据的解码值。

公开(公告)号：US07505982B2

公开(公告)日：2009-03-17

申请号：US11121442

申请日：2005-05-04

申请人： Jian Wang ,  Jiang Wu ,  Chunhui Zhang ,  Yingnong Dang ,  Qiang Wang

发明人： Jian Wang ,  Jiang Wu ,  Chunhui Zhang ,  Yingnong Dang ,  Qiang Wang

IPC分类号： G06F17/30 ,  G06F7/00

CPC分类号： G06F3/03545 ,  G06F3/0321 ,  G06K19/00 ,  Y10S707/99943 ,  Y10S707/99945

摘要： In accordance with embodiments of the invention, local metadata is embedded into, and extracted from, an embedded interaction code document. A plurality of local-metadata values are assigned, in accordance with a set of local-metadata conflict-resolution rules, via a plurality of respective partial-share channels, to a plurality of respective local-metadata fields. The local metadata is decoded by decoding the partial-share channels and by resolving potentially conflicting decoded local-metadata values according to the set of local-metadata conflict-resolution rules. A local metadata value of a region to the left may be smaller than a local metadata value of a potentially conflicting region to the right, and the values may be non-continuous. A local metadata value of an upper region may be smaller than a local metadata value of a potentially conflicting lower region, and the values may be continuous.

摘要翻译： 根据本发明的实施例，将本地元数据嵌入到嵌入式交互代码文档中并从其中提取出来。 根据一组本地元数据冲突解决规则经由多个相应的部分共享信道，将多个本地元数据值分配给多个相应的本地元数据字段。 通过对部分共享信道进行解码并根据本地元数据冲突解决规则的集合解决潜在冲突的解码的本地元数据值来解码本地元数据。 左侧的区域的本地元数据值可能小于右侧潜在冲突区域的本地元数据值，并且该值可以是非连续的。 上部区域的本地元数据值可以小于潜在冲突的较低区域的本地元数据值，并且该值可以是连续的。

公开(公告)号：US20070003150A1

公开(公告)日：2007-01-04

申请号：US11169744

申请日：2005-06-30

申请人： An Xu ,  Chunhui Zhang ,  Jian Wang ,  Liyong Chen ,  Qiang Wang ,  Yingnong Dang

发明人： An Xu ,  Chunhui Zhang ,  Jian Wang ,  Liyong Chen ,  Qiang Wang ,  Yingnong Dang

IPC分类号： G06K9/36

CPC分类号： G06F3/03545

摘要： A method and system for decoding data on a medium that is captured by an input device is described. The method decodes a symbol design, such as an embedded interaction code (EIC), on a display screen, such as a liquid crystal display (LCD). An image that is captured by an input device, such as a universal pen-type input device with a camera, is received. The captured image is processed to output an extracted bit stream. Position data and/or metadata information is decoded from the extracted bit stream and a position of the captured image with respect to a screen of the LCD is determined based upon the decoded position data. The EIC pattern may be recognized from LCD pixel grids and a bit stream of EIC bits may be extracted based upon the recognized EIC pattern.

摘要翻译： 描述用于对由输入装置捕获的介质上的数据进行解码的方法和系统。 该方法在诸如液晶显示器（LCD）的显示屏上解码符号设计，例如嵌入式交互码（EIC）。 接收由输入装置拍摄的图像，例如具有照相机的通用笔型输入装置。 捕获的图像被处理以输出提取的比特流。 位置数据和/或元数据信息从提取的比特流解码，并且基于解码的位置数据确定捕获图像相对于LCD的屏幕的位置。 可以从LCD像素网格识别EIC图案，并且可以基于所识别的EIC图案来提取EIC位的比特流。

公开(公告)号：US20060242560A1

公开(公告)日：2006-10-26

申请号：US11112637

申请日：2005-04-22

申请人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

发明人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

IPC分类号： G06F17/00

CPC分类号： G06F3/03545

摘要： In accordance with embodiments of the invention, local metadata is embedded into an embedded interactive code document by combining a first m-array and a second m-array to generate a combined m-array with encoded local metadata such that a start position of the second m-array in the combined m-array is shifted, by an amount that is based on the local metadata, relative to a start position of the first m-array in the combined m-array. The first m-array and the second m-array may contain the same repeating bit sequence. Local metadata may be decoded from the embedded interactive code document by decoding the local metadata from the combined m-array by determining the amount by which the second m-array is shifted, relative to the first m-array, in the combined m-array.

公开(公告)号：US08156153B2

公开(公告)日：2012-04-10

申请号：US12180484

申请日：2008-07-25

申请人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

发明人： Jian Wang ,  Zhouchen Lin ,  Yue Li ,  Chunhui Zhang ,  Yingnong Dang ,  Jiang Wu ,  Qiang Wang

IPC分类号： G06F7/00 ,  G06F17/00 ,  G06K9/00

CPC分类号： G06F17/242 ,  G06F3/0321 ,  G06F3/03545

摘要： Global metadata, such as a document identifier, which may be a globally unique identifier, is embedded into an embedded interactive code document by combining a first m-array and a plurality of copies of the first m-array to generate a combined m-array with encoded global metadata such that respective start positions (xd, yd)i of the plurality of copies of the first m-array in the combined m-array are each shifted, by respective amounts that are based on respective portions of the global metadata, relative to a start position of the first m-array in the combined m-array. Global metadata may be decoded from the combined m-array by determining the respective amounts by which the plurality of copies of the first m-array are shifted, relative to the first m-array, in the combined m-array and by combining the respective amounts to produce a decoded value of the global metadata.

摘要翻译： 通过组合第一m阵列和第一m阵列的多个副本来将全局元数据（诸如可以是全球唯一标识符的文档标识符）嵌入到嵌入式交互式代码文档中以生成组合的m阵列 具有编码的全局元数据，使得组合的m阵列中的第一m阵列的多个副本中的各个开始位置（xd，yd）i分别被移动，基于全局元数据的相应部分的相应量， 相对于组合的m阵列中的第一m阵列的开始位置。 可以通过确定在组合的m阵列中第一m阵列的多个副本相对于第一m阵列移位的相应量，并通过组合相应的数组来组合全局元数据 相当于产生全局元数据的解码值。