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公开(公告)号：EP2874099B1
公开(公告)日：2018-07-18
申请号：EP14193143.6
申请日：2014-11-14
申请人： Wacom Co., Ltd.
CPC分类号： G06K9/00154 , G06K9/00161 , G06K9/00181 , G06K9/00865 , G06K9/222 , G06K9/6206
摘要： Handwriting verification methods and related computer systems, and handwriting-based user authentication methods and related computer systems are disclosed. A handwriting verification method comprises obtaining a handwriting test sample containing a plurality of available parameters, extracting geometric parameters, deriving geometric features comprising an x-position value and a y-position value for each of a plurality of feature points in the test sample, performing feature matching between geometric features of the test sample and a reference sample, determining a handwriting verification result based at least in part on the feature matching, and outputting the handwriting verification result. The geometric features may further comprise values derived from the geometric parameters, such as direction and curvature values. The handwriting verification result can be further based on a count of unlinked feature points. Handwriting-based user authentication methods can employ such handwriting verification methods, or other handwriting verification methods.
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2.发明公开SYSTEM AND METHOD FOR SUPERIMPOSED HANDWRITING RECOGNITION TECHNOLOGY 审中-公开系统在VERFAHRENFÜRTECHNOLOGIE ZURÜBERLAGERTENHANDSCHRIFTERKENNUNG
公开(公告)号：EP3127043A2
公开(公告)日：2017-02-08
申请号：EP15733522.5
申请日：2015-03-30
申请人： MyScript
CPC分类号： G06K9/00865 , G06F3/04883 , G06K9/00409 , G06K9/00422 , G06K9/52 , G06K9/6267 , G06K9/66 , G06K9/726 , G06K2209/01 , G06T5/002 , G06T5/006 , G06T7/10 , G06T7/13
摘要： A system and method that is able to recognize a user's natural superimposed handwriting without any explicit separation between characters. The system and method is able to process single-stroke and multi-stroke characters. It can also process cursive handwriting. Further, the method and system can determine the boundaries of input words either by the use of a specific user input gesture or by detecting the word boundaries based on language characteristics and properties. The system and method analyzes the handwriting input through the processes of segmentation, character recognition, and language modeling. These three processes occur concurrently through the use of dynamic programming.
摘要翻译： 系统和方法能够识别用户的自然叠加手写，而不会在字符之间有任何明显的分离。 系统和方法能够处理单行程和多笔画字符。 系统和方法也可以处理草书手写。 此外，系统和方法可以通过使用特定用户输入手势或通过基于语言特性和属性检测词边界来确定输入词的边界。 系统和方法通过分割，字符识别和语言建模的过程分析手写输入。 这三个过程通过使用动态规划同时发生。
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3.发明公开
公开(公告)号：EP0662229A1
公开(公告)日：1995-07-12
申请号：EP93920353.0
申请日：1993-08-26
IPC分类号： G06K9
CPC分类号： G06K9/72 , G06K9/00416 , G06K9/00429 , G06K9/00859 , G06K9/00865 , G06K9/00872 , G06K9/222 , G06K2209/01
摘要： A method and apparatus (10) for cursive script recognition employs an intermediate cursive words description language constructed of elements in the form of metastrokes wherein each of the metastrokes is a member of a metric space, the metric space being expressible as a matrix of likelihood of matching between input metastrokes and predefined metastrokes forming a vocabulary. Typically, a minimum of twenty metastrokes is used to form the vocabulary or set of allowable stroke elemental shapes (24), although as many as seventy may be used, with a correlation factor or measurement of similarity being defined between strings of metastrokes (20). Techniques for interpreting the metastrokes as words include substituting, adding, and deleting metastrokes in an input sequence, measuring similarity and comparing entries in a dictionary of words constructed of metastroke sequences and varients of metastroke sequences. Weighting of similarity may include penalties for lack of similarity.
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公开(公告)号：EP3200123A1
公开(公告)日：2017-08-02
申请号：EP16153187.6
申请日：2016-01-28
CPC分类号： G06K9/00865
摘要： Die Erfindung betrifft ein Verfahren zur Erkennung von aus Zeichen bestehenden, mehrzeiligen Text, insbesondere gebundener Handschrift.
Bei dem Verfahren (1) zur Erkennung von aus Zeichen (2) bestehenden, mehrzeiligen (3) Text (4), insbesondere mehrzeiliger, gebundener Handschrift (5), wird unter Verwendung eines rekurrenten neuronalen Netzes (6) für den aus den Zeichen (2) bestehenden, mehrzeiligen (3) Text (4) ein zweidimensionales Raster (7) von Symbolwahrscheinlichkeiten (8) erzeugt (100). Unter Verwendung der Symbolwahrscheinlichkeiten (8) werden die Zeichen (2) des aus den Zeichen (2) bestehenden, mehrzeiligen (3) Textes (4) erkannt (200).摘要翻译： 本发明涉及一种用于识别由字符组成的多行文本的方法，特别是绑定手写。 在用于识别由字符（2）组成的多行（3）文本（4），特别是多行绑定手写（5）的方法（1）中，使用递归神经网络（6） 2）现有的多行（3）文本（4）生成符号概率（8）（100）的二维网格（7）。 使用符号概率（8），由字符（2）组成的多行（3）文本（4）的字符（2）被识别（200）。
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5.发明公开SYSTEM AND METHOD FOR SEARCHING ELECTRONIC DOCUMENTS CREATED WITH OPTICAL CHARACTER RECOGNITION 审中-公开系统和方法与光学符号检测准备的电子文档的搜索
公开(公告)号：EP1073972A1
公开(公告)日：2001-02-07
申请号：EP99915064.2
申请日：1999-03-26
申请人： Peterman, William
发明人： Peterman, William
IPC分类号： G06F17/30
CPC分类号： G06K9/00865 , G06K9/723 , G06K2209/01 , Y10S707/99932 , Y10S707/99933 , Y10S707/99934 , Y10S707/99935
摘要： Search requests are processed in order to compensate for characters and character strings misread during OCR scanning. After an alphanumeric search is entered (50), the system determines variant words associated with the entered alphanumeric search request according to a predefined table of possible OCR errors, the OCR(s) error probability of occurrence and a predefined threshold of probability of occurrences (52). When the processing is complete, a search engine then uses the variant words to search a database containing OCR scanned documents (54).
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6.发明公开
公开(公告)号：EP0662229A4
公开(公告)日：1996-01-03
申请号：EP93920353
申请日：1993-08-26
申请人： PARAGRAPH INT
CPC分类号： G06K9/72 , G06K9/00416 , G06K9/00429 , G06K9/00859 , G06K9/00865 , G06K9/00872 , G06K9/222 , G06K2209/01
摘要： A method and apparatus (10) for cursive script recognition employs an intermediate cursive words description language constructed of elements in the form of metastrokes wherein each of the metastrokes is a member of a metric space, the metric space being expressible as a matrix of likelihood of matching between input metastrokes and predefined metastrokes forming a vocabulary. Typically, a minimum of twenty metastrokes is used to form the vocabulary or set of allowable stroke elemental shapes (24), although as many as seventy may be used, with a correlation factor or measurement of similarity being defined between strings of metastrokes (20). Techniques for interpreting the metastrokes as words include substituting, adding, and deleting metastrokes in an input sequence, measuring similarity and comparing entries in a dictionary of words constructed of metastroke sequences and varients of metastroke sequences. Weighting of similarity may include penalties for lack of similarity.
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公开(公告)号：EP1815395B1
公开(公告)日：2011-03-09
申请号：EP05794628.7
申请日：2005-10-21
申请人： ZI Decuma AB
发明人： STERNBY, Jakob , HOLTSBERG, Anders
IPC分类号： G06K9/00
CPC分类号： G06K9/00865 , G06K9/00409
摘要： A method for recognition of a handwritten pattern comprises selecting core points among a sequence of detected points of the handwritten pattern. The core points are selected for use in segmenting and recognizing the handwritten pattern. The method further comprises determining features of each core point, and comparing the handwritten pattern to templates. The comparing comprises stepwise analyzing the core points in sequence by matching the features of sequences of core points that either start with the first core point or the last core point of a previous sequence to said templates and calculating a distance value, and assigning a cumulative distance value to the last core point in the matched sequence of core points, whereby a smallest cumulative distance value is assigned to the last core point and corresponds to a sequence of matched templates which represent a possible recognition result of the handwritten pattern.
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公开(公告)号：EP1815395A1
公开(公告)日：2007-08-08
申请号：EP05794628.7
申请日：2005-10-21
申请人： ZI Decuma AB
发明人： STERNBY, Jakob , HOLTSBERG, Anders
IPC分类号： G06K9/22
CPC分类号： G06K9/00865 , G06K9/00409
摘要： A method for recognition of a handwritten pattern comprises selecting core points among a sequence of detected points of the handwritten pattern. The core points are selected for use in segmenting and recognizing the handwritten pattern. The method further comprises determining features of each core point, and comparing the handwritten pattern to templates. The comparing comprises stepwise analyzing the core points in sequence by matching the features of sequences of core points that either start with the first core point or the last core point of a previous sequence to said templates and calculating a distance value, and assigning a cumulative distance value to the last core point in the matched sequence of core points, whereby a smallest cumulative distance value is assigned to the last core point and corresponds to a sequence of matched templates which represent a possible recognition result of the handwritten pattern.
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9.发明授权Diacritical processing for unconstrained, on-line handwriting recognition using a forward search 有权处理的区别标记使用前向搜索在胁迫下手写认识到如果不能写
公开(公告)号：EP0944020B1
公开(公告)日：2005-09-21
申请号：EP99105383.6
申请日：1999-03-16
申请人： MOTOROLA, INC.
发明人： Seni, Giovanni , Seybold, John
IPC分类号： G06K9/22
CPC分类号： G06K9/00865 , G06K9/00416
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10.发明公开Dynamic handwriting verification and handwriting-based user authentication 有权动力手推车和手推车Benutzerauthentifizierung
公开(公告)号：EP2874099A1
公开(公告)日：2015-05-20
申请号：EP14193143.6
申请日：2014-11-14
申请人： Wacom Co., Ltd.
CPC分类号： G06K9/00154 , G06K9/00161 , G06K9/00181 , G06K9/00865 , G06K9/222 , G06K9/6206
摘要： Handwriting verification methods and related computer systems, and handwriting-based user authentication methods and related computer systems are disclosed. A handwriting verification method comprises obtaining a handwriting test sample containing a plurality of available parameters, extracting geometric parameters, deriving geometric features comprising an x-position value and a y-position value for each of a plurality of feature points in the test sample, performing feature matching between geometric features of the test sample and a reference sample, determining a handwriting verification result based at least in part on the feature matching, and outputting the handwriting verification result. The geometric features may further comprise values derived from the geometric parameters, such as direction and curvature values. The handwriting verification result can be further based on a count of unlinked feature points. Handwriting-based user authentication methods can employ such handwriting verification methods, or other handwriting verification methods.
摘要翻译： 公开了手写验证方法和相关的计算机系统以及基于手写的用户认证方法和相关的计算机系统。 手写验证方法包括获得包含多个可用参数的手写测试样本，提取几何参数，导出包括测试样本中的多个特征点中的每一个的x位置值和y位置值的几何特征，执行 测试样本的几何特征与参考样本之间的特征匹配，至少部分地基于特征匹配确定手写验证结果，并输出手写验证结果。 几何特征还可以包括从诸如方向和曲率值的几何参数导出的值。 手写验证结果可以进一步基于未链接的特征点的计数。 基于手写的用户认证方法可以采用这种手写验证方法或其他手写验证方法。
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