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1.发明授权Printing and authentication of a security document on a substrate utilizing unique substrate properties 有权使用独特的基板特性在基板上印刷和认证安全文件公开(公告)号：US08736908B2
公开(公告)日：2014-05-27
申请号：US12334791
申请日：2008-12-15
申请人： Alvin Wai Leong Yeap , Andrew James Fields , Nicolas Rowland de Courcy Bingham , Shaun Peter O'Keefe , Alan Gordon Doubleday
发明人： Alvin Wai Leong Yeap , Andrew James Fields , Nicolas Rowland de Courcy Bingham , Shaun Peter O'Keefe , Alan Gordon Doubleday
CPC分类号： B41M3/14 , G06K9/2054 , G06K2209/01
摘要： A method for printing a security document on a substrate is disclosed. Firstly, a first reference image of a reference region of the substrate is generated, the image being indicative of an inherent characteristic of the substrate in the reference region. This is followed by generating encoded data indicative of the inherent characteristic of the substrate. Finally, the encoded data is printed over the reference region of the substrate, thus effecting the print of the security document.
摘要翻译： 公开了一种在基板上印刷安全证件的方法。 首先，生成衬底的参考区域的第一参考图像，该图像表示参考区域中的衬底的固有特性。 随后产生指示衬底的固有特性的编码数据。 最后，将编码数据印在衬底的参考区域上，从而实现安全文件的打印。
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公开(公告)号：US20090284802A1
公开(公告)日：2009-11-19
申请号：US12334791
申请日：2008-12-15
申请人： Alvin Wai Leong Yeap , Andrew James Fields , Nicolas Rowland de Courcy Bingham , Shaun Peter O'Keefe , Alan Gordon Doubleday
发明人： Alvin Wai Leong Yeap , Andrew James Fields , Nicolas Rowland de Courcy Bingham , Shaun Peter O'Keefe , Alan Gordon Doubleday
IPC分类号： H04N1/40
CPC分类号： B41M3/14 , G06K9/2054 , G06K2209/01
摘要： A method for printing a security document on a substrate is disclosed. Firstly, a first reference image of a reference region of the substrate is generated, the image being indicative of an inherent characteristic of the substrate in the reference region. This is followed by generating encoded data indicative of the inherent characteristic of the substrate. Finally, the encoded data is printed over the reference region of the substrate, thus effecting the print of the security document.
摘要翻译： 公开了一种在基板上印刷安全证件的方法。 首先，生成衬底的参考区域的第一参考图像，该图像表示参考区域中的衬底的固有特性。 随后产生指示衬底的固有特性的编码数据。 最后，将编码数据印在衬底的参考区域上，从而实现安全文件的打印。
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公开(公告)号：US09355293B2
公开(公告)日：2016-05-31
申请号：US12628425
申请日：2009-12-01
CPC分类号： G06K7/14 , G06K7/1417 , G06K7/1452 , G06K7/1456
摘要： A method (2304) of decoding a QR code having two initially detected finder patterns (2901, 2902; 2911, 2912) is provided. The method forms (2402) a pattern matching template (2700, 2800) based on characteristics of the detected finder patterns and determines (2403) at least one candidate region (2904, 2905; 2913, 2914) about the detected finder patterns. The candidate region is typically based at least on the relative positions of the detected finder patterns. The method detects (2404) a previously undetected third finder pattern of the QR code in the at least one candidate region by correlating content of the candidate region with the pattern matching template. With the identified third finder pattern and each of the two initially detected finder patterns, decoding (2305) the QR code can then be performed. Also disclosed is a method of detecting a two-dimensional code comprising known target features and coded data in an image. The target features comprise a continuous black region, enclosed entirely by a continuous white region, enclosed entirely by a continuous black region. The method performs line-by-line connected component analysis (403) of the image to determine candidate features of interest. The line-by-line connected component analysis aggregates metrics corresponding to candidate features of interest. The method evaluates (404) the aggregated metrics to determine how similar each candidate feature of interest is to the target feature and forms (405) a candidate region of interest from multiple candidate features of interest. Typically the target features include the copyright symbol © and the registered trade mark symbol ®.
摘要翻译： 提供了一种对具有两个最初检测到的取景器图案（2901,2922; 2911,2912）的QR码进行解码的方法（2304）。 该方法基于检测到的取景器图案的特性形成（2402）模式匹配模板（2700,2800），并且确定（2403）关于检测到的取景器图案的至少一个候选区域（2904,2905,2913,2914）。 候选区域通常至少基于检测到的取景器图案的相对位置。 该方法通过将候选区域的内容与模式匹配模板相关联来检测（2404）先前未检测到的至少一个候选区域中的QR码的第三取景器图案。 利用所识别的第三取景器图案和两个最初检测的取景器图案中的每一个，然后可以执行解码（2305）的QR码。 还公开了一种检测图像中包含已知目标特征和编码数据的二维码的方法。 目标特征包括完全由连续的黑色区域完全包围的连续黑色区域的连续黑色区域。 该方法执行图像的逐行连接分量分析（403）以确定感兴趣的候选特征。 逐行连接的组件分析聚合与感兴趣的候选特征相对应的度量。 该方法评估（404）聚合度量，以确定每个候选兴趣特征与目标特征的相似程度如何，并且从感兴趣的多个候选特征形成（405）感兴趣的候选区域。 通常，目标特征包括版权符号©和注册商标符号®。
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公开(公告)号：US20100155464A1
公开(公告)日：2010-06-24
申请号：US12628425
申请日：2009-12-01
CPC分类号： G06K7/14 , G06K7/1417 , G06K7/1452 , G06K7/1456
摘要： A method (2304) of decoding a QR code having two initially detected finder patterns (2901, 2902; 2911, 2912) is provided. The method forms (2402) a pattern matching template (2700, 2800) based on characteristics of the detected finder patterns and determines (2403) at least one candidate region (2904, 2905; 2913, 2914) about the detected finder patterns. The candidate region is typically based at least on the relative positions of the detected finder patterns. The method detects (2404) a previously undetected third finder pattern of the QR code in the at least one candidate region by correlating content of the candidate region with the pattern matching template. With the identified third finder pattern and each of the two initially detected finder patterns, decoding (2305) the QR code can then be performed. Also disclosed is a method of detecting a two-dimensional code comprising known target features and coded data in an image. The target features comprise a continuous black region, enclosed entirely by a continuous white region, enclosed entirely by a continuous black region. The method performs line-by-line connected component analysis (403) of the image to determine candidate features of interest. The line-by-line connected component analysis aggregates metrics corresponding to candidate features of interest. The method evaluates (404) the aggregated metrics to determine how similar each candidate feature of interest is to the target feature and forms (405) a candidate region of interest from multiple candidate features of interest. Typically the target features include the copyright symbol © and the registered trade mark symbol ®.
摘要翻译： 提供了一种对具有两个最初检测到的取景器图案（2901,2922; 2911,2912）的QR码进行解码的方法（2304）。 该方法基于检测到的取景器图案的特性形成（2402）模式匹配模板（2700,2800），并且确定（2403）关于检测到的取景器图案的至少一个候选区域（2904,2905,2913,2914）。 候选区域通常至少基于检测到的取景器图案的相对位置。 该方法通过将候选区域的内容与模式匹配模板相关联来检测（2404）先前未检测到的至少一个候选区域中的QR码的第三取景器图案。 利用所识别的第三取景器图案和两个最初检测的取景器图案中的每一个，然后可以执行解码（2305）的QR码。 还公开了一种检测图像中包含已知目标特征和编码数据的二维码的方法。 目标特征包括完全由连续的黑色区域完全包围的连续黑色区域的连续黑色区域。 该方法执行图像的逐行连接分量分析（403）以确定感兴趣的候选特征。 逐行连接的组件分析聚合与感兴趣的候选特征相对应的度量。 该方法评估（404）聚合度量，以确定每个候选兴趣特征与目标特征的相似程度如何，并且从感兴趣的多个候选特征形成（405）感兴趣的候选区域。 通常，目标特征包括版权符号©和注册商标符号®。
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