公开(公告)号：US07980473B2

公开(公告)日：2011-07-19

申请号：US12039060

申请日：2008-02-28

申请人： Chunhui Zhang ,  Shi Han ,  Jian Wang

发明人： Chunhui Zhang ,  Shi Han ,  Jian Wang

IPC分类号： G06K7/10

CPC分类号： G06K7/10722 ,  G06K7/1417 ,  G06K7/1456 ,  G06K19/06037

摘要： Techniques for providing camera based code reading are disclosed. In some aspects, a camera-readable code is generated which may be read by a code reading device. The code reading device may capture an image of the code, process the image, and decode the code. The code includes symbols arranged to form a pattern. According to one or more embodiments, an image with the code is cropped to remove extraneous information. The code image is manipulated by exact binary segmentation to remove background information from the code. The code is oriented to a grid using an interval value defined between the symbols. The symbols are decoded by comparing unique aspects of the symbols using a statistical analysis. The decoded symbols may be converted to a message for a user or be used for other purposes.

摘要翻译： 公开了用于提供基于相机的代码读取的技术。 在一些方面，生成可由代码读取装置读取的相机可读代码。 代码读取装置可以捕获代码的图像，处理图像并对代码进行解码。 该代码包括排列成形成图案的符号。 根据一个或多个实施例，裁剪具有代码的图像以去除无关信息。 代码图像由精确的二进制分割操作，以从代码中移除背景信息。 代码使用在符号之间定义的间隔值定向到网格。 通过使用统计分析比较符号的独特方面来对符号进行解码。 解码的符号可以被转换成用户的消息或用于其他目的。

公开(公告)号：US07664336B2

公开(公告)日：2010-02-16

申请号：US11340313

申请日：2006-01-26

申请人： Zhengyou Zhang ,  An Xu ,  Chunhui Zhang

发明人： Zhengyou Zhang ,  An Xu ,  Chunhui Zhang

IPC分类号： G06K9/40

CPC分类号： G06K9/40

摘要： A video clip is processed by selecting a plurality of video frames of the video clip. A plurality of the pixels of the selected video frames are modified to form modified video frames. The modification to each of the plurality of the pixels is based on the intensity of the pixel, a change in the intensity of the pixel from the corresponding pixel in at least one related video frame, and the intensity of the corresponding pixel. A second video clip is formed that comprises the modified video clips.

摘要翻译： 通过选择视频剪辑的多个视频帧来处理视频剪辑。 所选择的视频帧的多个像素被修改以形成修改的视频帧。 对多个像素中的每一个的修改基于像素的强度，来自至少一个相关视频帧中的对应像素的像素强度的变化以及相应像素的强度。 形成包括经修改的视频剪辑的第二视频剪辑。

公开(公告)号：US07619607B2

公开(公告)日：2009-11-17

申请号：US11169889

申请日：2005-06-30

申请人： Chunhui Zhang ,  Jian Wang ,  Qiang Wang

发明人： Chunhui Zhang ,  Jian Wang ,  Qiang Wang

IPC分类号： G09G3/36 ,  G06K9/00 ,  H04N1/40

CPC分类号： G06F3/037

摘要： A method and system for presenting data on a medium for capture by an input device is described. The method embeds a symbol design, such as an embedded interaction code (EIC), in an image on a display screen, such as a liquid crystal display (LCD). A grid with a plurality of pixels defines a size of an EIC pattern on an LCD. An area of the grid is used to embed position data and/or metadata information. The area may be defined by a sub-pixel of the plurality of pixels and/or the edges of the grid itself. The sub-pixel with the EIC pattern may be configured to have a grey value based upon a color of an underlying image associated with an application program being displayed on the LCD. The method also allows for decoding of the position data and/or metadata information in the EIC pattern on the LCD.

摘要翻译： 描述用于在介质上呈现数据以用于由输入设备进行捕获的方法和系统。 该方法将诸如嵌入式交互代码（EIC）的符号设计嵌入显示屏幕上的图像中，例如液晶显示器（LCD）。 具有多个像素的网格限定了LCD上的EIC图案的尺寸。 网格的一个区域用于嵌入位置数据和/或元数据信息。 该区域可以由多个像素的子像素和/或网格本身的边缘来定义。 具有EIC图案的子像素可以被配置为具有基于与在LCD上显示的应用程序相关联的底层图像的颜色的灰度值。 该方法还允许对LCD上的EIC图案中的位置数据和/或元数据信息进行解码。

公开(公告)号：US20090119573A1

公开(公告)日：2009-05-07

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： 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m阵列，使得组合的m阵列中的第一m阵列的多个副本中的相应起始位置（xd，yd）i各自偏移基于 在全局元数据的相应部分上相对于组合的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。

公开(公告)号：US07502508B2

公开(公告)日：2009-03-10

申请号：US11385870

申请日：2006-03-22

申请人： Jian Wang ,  Qiang Wang ,  Chunhui Zhang ,  Yue Li

发明人： Jian Wang ,  Qiang Wang ,  Chunhui Zhang ,  Yue Li

IPC分类号： G06K9/18 ,  G09G5/08

CPC分类号： G06K9/228 ,  G06F3/0321 ,  G06F3/03545 ,  G06K19/06037

摘要： A system and method is described for providing an encoding scheme for a bit stream and displaying or printing the encoded bit stream. Using the encoded bit stream, a pen with a camera may capture an image of a portion of the encoded bit stream. The captured image may then be decoded to provide an indication of the location of the image in relation to the encoded bit stream. The encoding scheme includes information regarding orientation, thus making decoding easier.

摘要翻译： 描述了一种用于提供比特流的编码方案并显示或打印编码比特流的系统和方法。 使用编码比特流，具有相机的笔可以捕获编码比特流的一部分的图像。 然后可以对所捕获的图像进行解码，以提供关于编码比特流的图像的位置的指示。 编码方案包括关于取向的信息，从而使解码更容易。

公开(公告)号：US07486823B2

公开(公告)日：2009-02-03

申请号：US11618308

申请日：2006-12-29

申请人： Jian Wang ,  Qiang Wang ,  Chunhui Zhang ,  Yue Li

发明人： Jian Wang ,  Qiang Wang ,  Chunhui Zhang ,  Yue Li

IPC分类号： G06K9/18 ,  G09G5/08

CPC分类号： G06K9/228 ,  G06F3/0321 ,  G06F3/03545 ,  G06K19/06037

摘要： A system and method is described for providing an encoding scheme for a bit stream and displaying or printing the encoded bit stream. Using the encoded bit stream, a pen with a camera may capture an image of a portion of the encoded bit stream. The captured image may then be decoded to provide an indication of the location of the image in relation to the encoded bit stream. The encoding scheme includes information regarding orientation, thus making decoding easier.

公开(公告)号：US20090027351A1

公开(公告)日：2009-01-29

申请号：US12142669

申请日：2008-06-19

申请人： Chunhui Zhang ,  Jian Wang

发明人： Chunhui Zhang ,  Jian Wang

IPC分类号： G06F3/041 ,  G06K9/62

CPC分类号： H01P5/107

摘要： A system and method for using biometric images is disclosed. In an embodiment, a plurality of biometric images belonging to an individual are scanned and associated with one or more functions. The user can cause different biometric images to be scanned so that different functions within the user interface can be actuated. Thus, a biometric sensor can be used to provide additional functionality as compared to system where a single biometric image is used to provide access.

摘要翻译： 公开了一种使用生物特征图像的系统和方法。 在一个实施例中，属于个体的多个生物测定图像被扫描并与一个或多个功能相关联。 用户可以使不同的生物统计图像被扫描，从而可以启动用户界面内的不同功能。 因此，与使用单个生物测定图像来提供访问的系统相比，生物测定传感器可以用于提供附加功能。

公开(公告)号：US07421439B2

公开(公告)日：2008-09-02

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： 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，使得第一m阵列的多个拷贝的相应开始位置（x，d，i，...， 组合的m阵列相对于组合的m阵列中的第一m阵列的开始位置而被移位，相应于基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：US07172124B2

公开(公告)日：2007-02-06

申请号：US11077056

申请日：2005-03-10

申请人： Jian Wang ,  Chunhui Zhang

发明人： Jian Wang ,  Chunhui Zhang

IPC分类号： G06K7/10 ,  G06K19/06

CPC分类号： G06K7/14

摘要： Embodiments of the invention relate to decoding encoded barcode information from a camera-captured image by generating a binarized sequence from the camera-captured image and decoding the encoded barcode information from the binarized sequence. The camera-captured image is transformed into a preprocessed grayscale image, reducing noise and enhancing contrast between bars and spaces in the preprocessed image. A barcode orientation is identified that is parallel to bars in the preprocessed image. A projected sequence is generated by projecting pixels of the preprocessed image along the barcode orientation. The binarized sequence is generated by applying a threshold to detected peaks and valleys of the projected sequence. A barcode-encoding sequence is generated, from the binarized sequence, in which each barcode bar module and each barcode space module is represented by a single respective bit in the barcode-encoding sequence. The barcode encoded information is extracted from the barcode-encoding sequence.

摘要翻译： 本发明的实施例涉及通过从相机拍摄图像生成二值化序列并从二值化序列解码编码的条形码信息来从相机拍摄图像中解码编码的条形码信息。 摄像机拍摄的图像被转换为​​预处理的灰度图像，减少了预处理图像中的条纹和空间之间的噪音并增强了对比度。 识别与预处理图像中的条平行的条形码方向。 通过沿着条形码方向投影预处理图像的像素来产生投影序列。 通过将阈值应用于所检测的投影序列的峰值和谷值来生成二值化序列。 从二进制序列生成条形码编码序列，其中每个条形码栏模块和每个条形码空间模块由条形码编码序列中的单个相应位表示。 从条形码编码序列中提取条形码编码信息。

公开(公告)号：US07133031B2

公开(公告)日：2006-11-07

申请号：US10751884

申请日：2004-01-07

申请人： Jian Wang ,  Chunhui Zhang

发明人： Jian Wang ,  Chunhui Zhang

IPC分类号： G09G5/00

CPC分类号： G06F3/03545 ,  G06F3/0317 ,  G06F3/0321

摘要： The universal input device provides a common user interface for a variety of different computing platforms including printed documents. Using the present system, one may use the universal input device to control various computing devices as well as capture handwritten electronic ink and have the electronic ink be associated with new or stored documents. The universal input device can be identified by a specific identification in order to allow for multiple users to operate on a document and/or within an application program simultaneously or not. An off-set optical system with infrared illumination handles perspective and helps detect positional encoding which can be covered by existing ink under common visible light illumination.

摘要翻译： 通用输入设备为各种不同的计算平台（包括打印文档）提供通用的用户界面。 使用本系统，可以使用通用输入设备来控制各种计算设备以及捕获手写电子墨水并使电子墨水与新的或存储的文档相关联。 可以通过特定标识来识别通用输入设备，以便允许多个用户同时操作文档和/或应用程序中的操作。 具有红外照明的偏光光学系统可以透视，并且可以帮助检测在常见的可见光照明下可以被现有墨覆盖的位置编码。