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1.发明申请公开(公告)号：US20050259869A1
公开(公告)日：2005-11-24
申请号：US10521762
申请日：2003-06-27
申请人： Volker Lohweg , Harald Willeke
发明人： Volker Lohweg , Harald Willeke
摘要： Color deviations of images are analyzed using a sensor. The received image sensor signal is analyzed pixel by pixel. An image sensor signal is produced for each color channel from a plurality of color channels. An image sensor signal from a first channel, and one from a second channel, are combined. An output signal of a first color contrast channel is generated. Now an image sensor signal from a third channel is combined with the ones from the first and second image sensors. An output signal of a second color contrast channel is generated. The outputs of these color contrast channels are classified.
摘要翻译： 使用传感器分析图像的颜色偏差。 逐个像素分析接收的图像传感器信号。 从多个颜色通道为每个颜色通道生成图像传感器信号。 来自第一通道的图像传感器信号和来自第二通道的图像传感器信号被组合。 产生第一颜色对比度通道的输出信号。 现在来自第三通道的图像传感器信号与来自第一和第二图像传感器的图像传感器信号组合。 产生第二色对比通道的输出信号。 这些颜色对比通道的输出被分类。
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2.发明授权公开(公告)号：US08613254B2
公开(公告)日：2013-12-24
申请号：US12093179
申请日：2006-11-21
CPC分类号： B41F33/0009
摘要： There is described a method for detection of occurrence of printing errors on printed substrates during processing thereof on a printing press comprising the steps of providing multiple sensors on functional components of the printing press to monitor the behavior of the printing press during processing of the printed substrates and performing an in-line analysis of the behavior of the printing press to determine occurrence of a characteristic behavior of the printing press which leads or is likely to lead to occurrence of printing errors on the printed substrates or which leads or is likely to lead to good printing quality of the printed substrates. In-line analysis of the behavior of the printing press preferably includes performing fuzzy pattern classification of the behavior of the printing press. According to one embodiment of the proposed method in-line analysis of the behavior of the printing press is coupled with an in-line optical inspection of the printed substrates.
摘要翻译： 描述了一种用于在印刷机上处理印刷基板时发现印刷错误的方法，包括以下步骤：在印刷机的功能部件上提供多个传感器以监测印刷机在打印基板的处理过程中的行为 并且对印刷机的行为进行在线分析以确定印刷机的特征行为的发生，这导致或可能导致印刷基板上的印刷错误的发生或导致或可能导致 良好的印刷质量的印刷基板。 对印刷机的行为的在线分析优选包括对印刷机的行为进行模糊图案分类。 根据所提出的方法的一个实施例，印刷机的行为的在线分析结合了印刷基板的在线光学检查。
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公开(公告)号：US20120328179A1
公开(公告)日：2012-12-27
申请号：US13389769
申请日：2010-08-11
IPC分类号： G06K9/00
CPC分类号： G07D7/20 , G07D7/003 , G07D7/2016
摘要： There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (41-49; 30; 10; 51, 52) printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the step of digitally processing a sample image of at least one region of interest (R.o.I.) of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, the digital processing including performing a decomposition of the sample image by means of wavelet transform (WT) of the sample image. Such decomposition of the sample image is based on a wavelet packet transform (WPT) of the sample image, preferably a so-called two-dimensional shift invariant WPT (2D-SIWPT)
摘要翻译： 描述了一种用于检查安全文件，特别是钞票的真实性的方法，其中真实的安全文件包括在安全文件上打印，应用或以其他方式提供的安全性文件的安全特征（41-49; 30; 10; 51,52） 特征包括用于生成安全文档的过程固有的特征视觉特征。 该方法包括以下步骤：数字处理要认证的候选文档的表面的至少一个感兴趣区域（RoI）的样本图像，感兴趣的区域包括安全特征的至少一部分，数字处理包括执行 通过样本图像的小波变换（WT）对样本图像进行分解。 样本图像的这种分解基于样本图像的小波包变换（WPT），优选地是所谓的二维移位不变量WPT（2D-SIWPT）
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4.发明授权Method for evaluating the signals of an electronic image sensor during pattern recognition of image contents in a test piece 有权在测试片中的图像内容的图案识别期间评估电子图像传感器的信号的方法公开(公告)号：US07483573B2
公开(公告)日：2009-01-27
申请号：US10522590
申请日：2003-07-22
申请人： Volker Lohweg
发明人： Volker Lohweg
IPC分类号： G06K9/62
摘要： Signals generated by an electronic image sensor, during pattern recognition of image contents in a test piece, are evaluated. The image sensor receives an input light signal and emits an electrical output signal that correlates with the input light signal. The image content of a window, having a size of n×n pixels, is analyzed. The output signals that are either directly or indirectly emitted by the image sensor are transformed into at least one translationally invariant characteristic value by the use of at least one calculation specification. This characteristic value is weighted by at least one fuzzy matching function which correlates with the value range of the characteristic value. A higher-order fuzzy matching function is generated by linking all of the matching functions by use of a calculation specification including at least one rule. A sympathy value is determined from the higher-order fuzzy matching function. That sympathy value is compared with a threshold value. A decision is then made from this comparison regarding association with a class.
摘要翻译： 评价在电子图像传感器生成的图像内容在图像识别期间产生的信号。 图像传感器接收输入光信号并发射与输入光信号相关的电输出信号。 分析具有n×n像素大小的窗口的图像内容。 由图像传感器直接或间接发射的输出信号通过使用至少一个计算规范被转换成至少一个平移不变特性值。 该特征值由与特征值的值范围相关联的至少一个模糊匹配函数加权。 通过使用包括至少一个规则的计算规范来链接所有匹配函数来生成高阶模糊匹配函数。 从高阶模糊匹配函数确定同情价值。 将同情值与阈值进行比较。 然后，从与此类相关联的该比较中作出决定。
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5.发明授权Method for controlling the quality of printed documents based on pattern matching 失效基于模式匹配来控制打印文档质量的方法公开(公告)号：US08571327B2
公开(公告)日：2013-10-29
申请号：US12310702
申请日：2007-09-03
申请人： Jörn Sacher , Bernd Stöber , Harald Willeke , Volker Lohweg , Thomas Türke
发明人： Jörn Sacher , Bernd Stöber , Harald Willeke , Volker Lohweg , Thomas Türke
IPC分类号： G06K9/62
CPC分类号： G07D7/20 , G07D7/0032
摘要： A method for controlling the quality of printed documents, such as banknotes, in which only part of the surface of the printed documents is available for inspection, comprising the steps of (i) storing a reference image; (ii) acquiring a sample image of a sample printed document to be controlled, which sample image covers only a limited portion of the sample printed document; (iii) selecting a search pattern within the acquired sample image; (iv) searching the reference image for a match with the selected search pattern, (v) determining control parameters linked to the position of the search pattern within said sample image and within said reference image, (vi) comparing the control parameters linked to the position of the search pattern within the sample image with the control parameters linked to the position of the search pattern within the reference image; and (vii) based on the results of the comparison of the control parameters, accepting or rejecting the sample printed document.
摘要翻译： 一种用于控制仅印刷文件的表面的仅一部分可用于检查的打印文件（例如纸币）的质量的方法，包括以下步骤：（i）存储参考图像; （ii）获取待控制的样本打印文档的样本图像，该样本图像仅覆盖样本打印文档的有限部分; （iii）在所获取的样本图像内选择搜索模式; （iv）搜索参考图像与所选择的搜索模式的匹配，（v）确定与所述样本图像内的所述参考图像内的搜索模式的位置相关联的控制参数，（vi）比较与 搜索图案在样本图像内的位置，其中控制参数链接到参考图像内的搜索图案的位置; 和（vii）基于控制参数比较的结果，接受或拒绝样本打印文档。
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公开(公告)号：US08528477B2
公开(公告)日：2013-09-10
申请号：US12281244
申请日：2007-03-08
IPC分类号： B41F5/02
CPC分类号： B41F21/08 , B41F33/0036
摘要： There is described a sheet inspection system for a sheet-fed recto-verso printing press of the type comprising two printing cylinders (10, 20) for carrying out simultaneous recto-verso printing of the sheets, said sheet inspection system comprising at least a first inspection device (100) for taking an image of a first side of the printed sheets. The first inspection device (100) comprises a first line image sensor (110) for performing line-scanning image acquisition of the first side of the printed sheets, and the first inspection device (100) is disposed in such a way that the first line image sensor visually acquires an image of a printed sheet while the said printed sheet is still adhering onto the surface of a first one (10) of the two printing cylinders (10, 20) of the printing press and immediately before the said printed sheet is transferred to a chain gripper system (5) of the printing press. Also described is a printing press equipped with the inspection system.
摘要翻译： 描述了一种用于单张纸整流印刷机的片材检查系统，该印刷机包括用于执行片材的同时正面印刷的两个印刷滚筒（10,20），所述片材检查系统至少包括第一 检查装置（100），用于拍摄印刷纸张的第一面的图像。 第一检查装置（100）包括用于对印刷纸张的第一面进行行扫描图像采集的第一线图像传感器（110），并且第一检查装置（100）以这样的方式设置：第一检测装置 图像传感器在所述打印片材仍然粘附到印刷机的两个印刷滚筒（10,20）的第一个（10）的表面上并且紧接在所述印刷纸张之前，在视觉上获取打印纸张的图像 转移到印刷机的链钳系统（5）。 还描述了配有检查系统的印刷机。
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公开(公告)号：US20090025594A1
公开(公告)日：2009-01-29
申请号：US12281248
申请日：2007-03-08
IPC分类号： B41F33/00
CPC分类号： B41F21/08 , B41F33/0036
摘要： There is described a sheet inspection system for a sheet-fed recto-verso printing press of the type comprising two printing cylinders (10, 20) for carrying out simultaneous recto-verso printing of the sheets, said sheet inspection system comprising at least one inspection device (200; 300; 400) for taking an image of one side of the printed sheets. The sheet inspection system comprises first and second transfer cylinders (60, 65) interposed between a first (10) of the two printing cylinders (10, 20) and a chain gripper system (5) of the printing press, printed sheets being transferred successively from the first printing cylinder (10) to the first transfer cylinder (60), to the second transfer cylinder (65), and to the chain gripper system (5). The inspection device (200; 300; 400) comprises a line image sensor (210; 310; 410) for performing line-scanning image acquisition of the one side of the printed sheets, this line image sensor (210; 310; 410) visually acquiring an image of a printed sheet while the printed sheet is being transported on the first or second transfer cylinder (60; 65).
摘要翻译： 描述了一种用于单张纸整流印刷机的片材检查系统，该印刷机包括用于执行片材的同时正面印刷的两个印刷滚筒（10,20），所述片材检查系统包括至少一个检查 装置（200; 300; 400），用于拍摄印刷纸张的一面的图像。 片材检查系统包括介于两个印刷滚筒（10,20）中的第一（10）和印刷机的链夹系统（5）之间的第一和第二传送滚筒（60,65），印刷的纸张相继传送 从第一印刷滚筒（10）到第一传送滚筒（60）到第二传纸滚筒（65）和链夹具系统（5）。 检查装置（200; 300; 400）包括线图像传感器（210; 310; 410），用于对打印的纸张的一面进行行扫描图像采集，该视线图像传感器（210; 310; 410） 当印刷的纸张在第一或第二传送滚筒（60; 65）上传送时，获取打印纸张的图像。
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8.发明申请公开(公告)号：US20080295724A1
公开(公告)日：2008-12-04
申请号：US12093179
申请日：2006-11-21
IPC分类号： B41F33/00
CPC分类号： B41F33/0009
摘要： There is described a method for detection of occurrence of printing errors on printed substrates during processing thereof on a printing press comprising the steps of providing multiple sensors on functional components of the printing press to monitor the behaviour of the printing press during processing of the printed substrates and performing an in-line analysis of the behaviour of the printing press to determine occurrence of a characteristic behaviour of the printing press which leads or is likely to lead to occurrence of printing errors on the printed substrates or which leads or is likely to lead to good printing quality of the printed substrates. In-line analysis of the behaviour of the printing press preferably includes performing fuzzy pattern classification of the behaviour of the printing press. According to one embodiment of the proposed method in-line analysis of the behaviour of the printing press is coupled with an in-line optical inspection of the printed substrates.
摘要翻译： 描述了一种用于在印刷机上处理印刷基板时发现印刷错误的方法，包括以下步骤：在印刷机的功能部件上提供多个传感器以监测印刷机在打印基板的处理过程中的行为 并且对印刷机的行为进行在线分析以确定印刷机的特征行为的发生，这导致或可能导致印刷基板上的印刷错误的发生或导致或可能导致 良好的印刷质量的印刷基板。 对印刷机的行为的在线分析优选包括对印刷机的行为进行模糊图案分类。 根据所提出的方法的一个实施例，印刷机的行为的在线分析结合了印刷基板的在线光学检查。
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公开(公告)号：US20060050995A1
公开(公告)日：2006-03-09
申请号：US10522590
申请日：2003-07-22
申请人： Volker Lohweg
发明人： Volker Lohweg
摘要： Signals generated by an electronic image sensor, during pattern recognition of image contents in a test piece, are evaluated. The image sensor receives an input light signal and emits an electrical output signal that correlates with the input light signal. The image content of a window, having a size of n×n pixels, is analyzed. The output signals that are either directly or indirectly emitted by the image sensor are transformed into at least one translationally invariant characteristic value by the use of at least one calculation specification. This characteristic value is weighted by at least one fuzzy matching function which correlates with the value range of the characteristic value. A higher-order fuzzy matching function is generated by linking all of the matching functions by use of a calculation specification including at least one rule. A sympathy value is determined from the higher-order fuzzy matching function. That sympathy value is compared with a threshold value. A decision is then made from this comparison regarding association with a class.
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公开(公告)号：US08781204B2
公开(公告)日：2014-07-15
申请号：US12602227
申请日：2008-06-02
申请人： Volker Lohweg , Eugen Gillich , Johannes Schaede
发明人： Volker Lohweg , Eugen Gillich , Johannes Schaede
CPC分类号： G07D7/2016 , G07D7/003 , G07D7/205
摘要： There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the steps of (i) acquiring a sample image of at least one region of interest of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, (ii) digitally processing the sample image by performing a decomposition of the sample image into at least one scale sub-space containing high resolution details of the sample image and extracting classifying features from the scale sub-space, and (iii) deriving an authenticity rating of the candidate document based on the extracted classifying features.
摘要翻译： 描述了一种用于检查安全文件，特别是钞票的真实性的方法，其中真实的安全文件包括在安全文件上打印，应用或以其他方式提供的安全特征，这些安全特征包括用于生产 安全文件。 该方法包括以下步骤：（i）获取要认证的候选文档的表面的至少一个感兴趣区域的样本图像，感兴趣的区域包括安全特征的至少一部分，（ii）数字处理 通过将样本图像分解为包含样本图像的高分辨率细节的至少一个比例子空间并从缩放子空间提取分类特征，以及（iii）基于候选文档的真实性等级得到样本图像 提取分类功能。
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