Analyzing subordinate sub-expressions in expression recognition
    81.
    发明授权
    Analyzing subordinate sub-expressions in expression recognition 有权
    分析表达式识别中的下级子表达式

    公开(公告)号:US07929767B2

    公开(公告)日:2011-04-19

    申请号:US11155785

    申请日:2005-06-20

    IPC分类号: G06K9/18

    摘要: A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subordinate sub-expression analysis component. A method for analyzing a handwritten mathematical expression for a subordinate sub-expression includes identifying sub-expressions based on dominant symbols and determining a character for potential dominant symbols based upon sub-expression information. A determination may be made whether an expression structure candidate is valid and valid expression structure candidates may be stored in a parse tree.

    摘要翻译: 描述了通过提供一部分多路径框架来将手写数学表达式识别并输入计算机的机制。 多路径框架的一部分包括从属子表达式分析组件。 用于分析用于下级子表达式的手写数学表达式的方法包括基于主要符号识别子表达,并且基于子表达信息确定潜在的主要符号的字符。 可以确定表达式结构候选是否是有效的,并且有效的表达式结构候选可以被存储在解析树中。

    2-D barcode recognition
    82.
    发明授权
    2-D barcode recognition 有权
    二维码识别

    公开(公告)号:US07780084B2

    公开(公告)日:2010-08-24

    申请号:US11772069

    申请日:2007-06-29

    IPC分类号: G06K7/10

    摘要: Systems and methods for 2-D barcode recognition are described. In one aspect, the systems and methods use a charge coupled camera capturing device to capture a digital image of a 3-D scene. The systems and methods evaluate the digital image to localize and segment a 2-D barcode from the digital image of the 3-D scene. The 2-D barcode is rectified to remove non-uniform lighting and correct any perspective distortion. The rectified 2-D barcode is divided into multiple uniform cells to generate a 2-D matrix array of symbols. A barcode processing application evaluates the 2-D matrix array of symbols to present data to the user.

    摘要翻译: 描述了用于二维条形码识别的系统和方法。 在一个方面,所述系统和方法使用电荷耦合的摄像机捕捉设备来捕获3-D场景的数字图像。 系统和方法评估数字图像,以从3-D场景的数字图像中定位和分割二维条形码。 二维条形码整流,以消除不均匀的照明并纠正任何透视失真。 经整流的二维条形码被分成多个均匀的单元格,以产生符号的二维矩阵阵列。 条形码处理应用程序评估符号的二维矩阵数组以向用户呈现数据。

    Personalized ink font
    83.
    发明授权
    Personalized ink font 失效
    个性化墨水字体

    公开(公告)号:US07697001B2

    公开(公告)日:2010-04-13

    申请号:US11045083

    申请日:2005-01-31

    申请人: Zhouchen Lin

    发明人: Zhouchen Lin

    IPC分类号: G06T11/00

    CPC分类号: G06F17/214

    摘要: Aspects of the present invention relate to the creation of an ink font. Based on characteristics of handwritten characters, the collection of characters may be scaled so as to adjust the size of the font to match predefined size values or relationships.

    摘要翻译: 本发明的方面涉及油墨字体的创建。 基于手写字符的特征,可以缩放字符的集合,以便调整字体的大小以匹配预定义的大小值或关系。

    Decoding technique for linear block codes
    84.
    发明授权
    Decoding technique for linear block codes 失效
    线性块码的解码技术

    公开(公告)号:US07681110B2

    公开(公告)日:2010-03-16

    申请号:US11468609

    申请日:2006-08-30

    IPC分类号: H03M13/00

    CPC分类号: H03M13/13

    摘要: The present decoding technique provides an efficient technique for decoding linear block codes from multiple encoders. When an error in a code sequence is detected, the decoding technique estimates a confidence for each bit within the code sequence. Based on the confidence, a subset of bits within the code sequence is obtained. The subset of bits is then incrementally flipped to determine a set of modified code sequences. A syndrome is computed for each of the modified code sequences based on a preceding computed syndrome and an update vector.

    摘要翻译: 本解码技术提供了用于从多个编码器解码线性块码的有效技术。 当检测到代码序列中的错误时,解码技术估计代码序列内每个位的置信度。 基于置信度,获得码序列内的比特的子集。 然后逐位翻转位的子集以确定一组修改的代码序列。 基于先前计算的综合征和更新向量,为每个修改的码序列计算校正子。

    METHOD FOR MODELING DATA STRUCTURES USING LOCAL CONTEXTS
    85.
    发明申请
    METHOD FOR MODELING DATA STRUCTURES USING LOCAL CONTEXTS 有权
    使用本地参数建模数据结构的方法

    公开(公告)号:US20090132213A1

    公开(公告)日:2009-05-21

    申请号:US12032705

    申请日:2008-02-18

    IPC分类号: G06F17/10

    CPC分类号: G06K9/6248

    摘要: A method for modeling data affinities and data structures. In one implementation, a contextual distance may be calculated between a selected data point in a data sample and a data point in a contextual set of the selected data point. The contextual set may include the selected data point and one or more data points in the neighborhood of the selected data point. The contextual distance may be the difference between the selected data point's contribution to the integrity of the geometric structure of the contextual set and the data point's contribution to the integrity of the geometric structure of the contextual set. The process may be repeated for each data point in the contextual set of the selected data point. The process may be repeated for each selected data point in the data sample. A digraph may be created using a plurality of contextual distances generated by the process.

    摘要翻译: 一种用于建模数据亲和度和数据结构的方法。 在一个实现中,可以在数据样本中的所选数据点和所选数据点的上下文集合中的数据点之间计算上下文距离。 所述上下文集合可以包括所选数据点和所选数据点附近的一个或多个数据点。 上下文距离可以是所选数据点对上下文集合的几何结构的完整性的贡献与数据点对上下文集合的几何结构的完整性的贡献之间的差异。 可以对所选数据点的上下文集合中的每个数据点重复该过程。 可以对数据样本中的每个选定的数据点重复该过程。 可以使用由该过程生成的多个上下文距离来创建有向图。

    Signature verification
    86.
    发明授权
    Signature verification 有权
    签名验证

    公开(公告)号:US07529391B2

    公开(公告)日:2009-05-05

    申请号:US11321232

    申请日:2005-12-29

    IPC分类号: G06K9/00 G06K9/46

    CPC分类号: G06K9/00181

    摘要: Methods and systems for training a computer to recognize and verify an individual's signature are provided. One illustrative method extracts a plurality of both global and local features from a relatively small sample of handwriting samples. In one such embodiment, only 5 samples are needed from an individual without requiring forgeries. In yet another embodiment, only three global parameters are utilized, thus reducing the complexity, and processing power, of the system. Utilizing such few global parameters also facilitates fine tuning of the systems. Further aspects of the invention relate to a multi-stage statistical system for on-line signature verification. In one embodiment, the system may comprise a simplified GMM model built on global signature properties and a left-to-right HMM model based on segmental features. In one embodiment, specific strategies are utilized to create model simplification and initialization in contrast to general GMM and HMM models.

    摘要翻译: 提供了用于训练计算机以识别和验证个人签名的方法和系统。 一个说明性方法从相对较小的笔迹样本样本中提取多个全局和局部特征。 在一个这样的实施例中,仅需要5个样本,而不需要伪造。 在另一个实施例中,仅使用三个全局参数,从而降低系统的复杂性和处理能力。 利用这么少的全局参数也有助于系统的微调。 本发明的其它方面涉及用于在线签名验证的多阶段统计系统。 在一个实施例中,系统可以包括基于全局签名特性的简化GMM模型和基于段特征的从左到右HMM模型。 在一个实施例中,与通用GMM和HMM模型相反,具体策略被用于创建模型简化和初始化。

    SUPER-RESOLUTION IN PERIODIC AND APERIODIC PIXEL IMAGING
    87.
    发明申请
    SUPER-RESOLUTION IN PERIODIC AND APERIODIC PIXEL IMAGING 有权
    定期和APERIODIC像素成像中的超分辨率

    公开(公告)号:US20090046952A1

    公开(公告)日:2009-02-19

    申请号:US11835625

    申请日:2007-08-08

    IPC分类号: G06K9/32

    摘要: A super-resolution algorithm that explicitly and exactly models the detector pixel shape, size, location, and gaps for periodic and aperiodic tilings. The algorithm projects the low-resolution input image into high-resolution space to model the actual shapes and/or gaps of the detector pixels. By using an aperiodic pixel layout such as a Penrose tiling significant improvements in super-resolution results can be obtained. An error back-projection super-resolution algorithm makes use of the exact detector model in its back projection operator for better accuracy. Theoretically, the aperiodic detector can be based on CCD (charge-coupled device) technology, and/or more practically, CMOS (complimentary metal oxide semiconductor) technology, for example.

    摘要翻译: 一种超分辨率算法,用于明确和精确地建模周期性和非周期性的检测器像素形状,大小,位置和间隙。 该算法将低分辨率输入图像投影到高分辨率空间中以对检测器像素的实际形状和/或间隙进行建模。 通过使用非周期像素布局,如彭罗斯平铺,可以获得超分辨率结果的显着改进。 误差反投影超分辨率算法利用其反投影算子中的精确检测器模型更好的精度。 理论上,非周期检测器可以基于例如CCD(电荷耦合器件)技术和/或更实际的CMOS(互补金属氧化物半导体)技术。

    Spatial transforms from displayed codes
    88.
    发明授权
    Spatial transforms from displayed codes 有权
    从显示的代码空间转换

    公开(公告)号:US07477784B2

    公开(公告)日:2009-01-13

    申请号:US11067948

    申请日:2005-03-01

    IPC分类号: G06K9/62 G06K9/40

    CPC分类号: G06K9/222

    摘要: A method and apparatus for performing EIC pattern analysis is described. Pattern feature extraction is performed followed by EIC symbol segmentation. A system may later use the result from the pattern analysis to determine a location of a captured image in relation to a larger array of EIC symbols.

    摘要翻译: 描述用于执行EIC模式分析的方法和装置。 执行模式特征提取,然后进行EIC符号分割。 系统可以稍后使用模式分析的结果来确定相对于较大数组EIC符号的捕获图像的位置。

    Direct homography computation by local linearization
    89.
    发明授权
    Direct homography computation by local linearization 失效
    通过局部线性化直接进行单应性计算

    公开(公告)号:US07403658B2

    公开(公告)日:2008-07-22

    申请号:US11106725

    申请日:2005-04-15

    IPC分类号: G06K9/62

    CPC分类号: G06F3/03545

    摘要: A method and apparatus for determining a homography between an image and an expected image is described. The homography accounts for differences in perspective of a camera viewing an objective plane of the image, in some examples, a paper with information on it.

    摘要翻译: 描述了用于确定图像和预期图像之间的单应性的方法和装置。 单相法考虑了观察图像的客观平面的相机的视角的差异,在一些示例中,具有关于它的信息的论文。

    Strategies for Processing Annotations
    90.
    发明申请
    Strategies for Processing Annotations 失效
    处理注释的策略

    公开(公告)号:US20070174761A1

    公开(公告)日:2007-07-26

    申请号:US11275750

    申请日:2006-01-26

    IPC分类号: G06F17/00

    CPC分类号: G06F17/241

    摘要: Annotation engines are described for handling annotations added to a base document. The annotation engines automatically classify the type of annotations, including, but not limited to: a highlight annotation; a blob annotation (comprising an enclosing-type annotation); an underline annotation; a vertical bracket annotation; a call-out annotation; and a free-note annotation. The annotation engines accept input in the form of a hierarchical tree of document elements and generate an output in the form of a hierarchical tree of annotation elements. Among other uses, a reflow engine can use the output of the annotation engines to properly reposition annotations within a layout-modified base document.

    摘要翻译: 描述了注释引擎来处理添加到基本文档中的注释。 注释引擎自动对注释类型进行分类,包括但不限于:高亮注释; 一个blob注释(包括一个封闭类型的注释); 下划线注释; 垂直括号注释; 一个调用注释; 和一个免费注释注释。 注释引擎以文档元素的分层树的形式接受输入,并以注释元素的分层树的形式生成输出。 除了其他用途之外,回流引擎可以使用注释引擎的输出来在布局修改的基础文档中正确地重新定位注释。