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公开(公告)号：US08452058B2
公开(公告)日：2013-05-28
申请号：US12041879
申请日：2008-03-04
IPC分类号： G06K9/00
CPC分类号： G06K9/00275 , H04L9/3231
摘要： In one embodiment, the invention is a method and apparatus for repeatable facial distortion. One embodiment of a method for generating a secure facial image from an original facial image includes receiving the original facial image and a key, the key being associated with a subject depicted in the original facial image, and distorting the original facial image, in accordance with the key, to produce the secure facial image, where the distorting includes transforming at least one of: the albedo of the original facial image or the shape of the original facial image.
摘要翻译： 在一个实施例中，本发明是用于可重复的面部变形的方法和装置。 用于从原始面部图像生成安全面部图像的方法的一个实施例包括接收原始面部图像和键，该键与原始面部图像中描绘的对象相关联，并且根据原始面部图像扭曲原始面部图像 是产生安全面部图像的关键，其中扭曲包括转换原始面部图像的反照率或原始面部图像的形状中的至少一个。
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公开(公告)号：US20090226045A1
公开(公告)日：2009-09-10
申请号：US12041879
申请日：2008-03-04
IPC分类号： G06K9/00
CPC分类号： G06K9/00275 , H04L9/3231
摘要： In one embodiment, the invention is a method and apparatus for repeatable facial distortion. One embodiment of a method for generating a secure facial image from an original facial image includes receiving the original facial image and a key, the key being associated with a subject depicted in the original facial image, and distorting the original facial image, in accordance with the key, to produce the secure facial image, where the distorting includes transforming at least one of: the albedo of the original facial image or the shape of the original facial image.
摘要翻译： 在一个实施例中，本发明是用于可重复的面部变形的方法和装置。 用于从原始面部图像生成安全面部图像的方法的一个实施例包括接收原始面部图像和键，该键与原始面部图像中描绘的对象相关联，并且根据原始面部图像扭曲原始面部图像 是产生安全面部图像的关键，其中扭曲包括转换原始面部图像的反照率或原始面部图像的形状中的至少一个。
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公开(公告)号：US08625861B2
公开(公告)日：2014-01-07
申请号：US12120936
申请日：2008-05-15
IPC分类号： G06K9/00
CPC分类号： G06K9/00067 , G06K9/00073
摘要： Techniques for generating a gradient characterization for a first fingerprint image are provided. One or more fingerprint feature points are selected from the first fingerprint image. A region is obtained for each of the one or more selected fingerprint feature points. The region is a representation of an area proximate a given fingerprint feature point. Each of the obtained regions is divided into a plurality of sub-regions. A histogram is generated for each of the plurality of sub-regions. For each of the one or more selected fingerprint feature points, the one or more generated histograms are combined into a concatenated histogram. The concatenated histogram is used for identification purposes.
摘要翻译： 提供了用于产生第一指纹图像的梯度表征的技术。 从第一指纹图像中选择一个或多个指纹特征点。 为一个或多个所选择的指纹特征点中的每一个获得区域。 该区域是靠近给定指纹特征点的区域的表示。 所获得的区域被分成多个子区域。 为多个子区域中的每个子区域生成直方图。 对于一个或多个所选择的指纹特征点中的每一个，将一个或多个生成的直方图组合成级联直方图。 串联直方图用于识别目的。
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公开(公告)号：US20090285459A1
公开(公告)日：2009-11-19
申请号：US12120936
申请日：2008-05-15
IPC分类号： G06K9/00
CPC分类号： G06K9/00067 , G06K9/00073
摘要： Techniques for generating a gradient characterization for a first fingerprint image are provided. One or more fingerprint feature points are selected from the first fingerprint image. A region is obtained for each of the one or more selected fingerprint feature points. The region is a representation of an area proximate a given fingerprint feature point. Each of the obtained regions is divided into a plurality of sub-regions. A histogram is generated for each of the plurality of sub-regions. For each of the one or more selected fingerprint feature points, the one or more generated histograms are combined into a concatenated histogram. The concatenated histogram is used for identification purposes.
摘要翻译： 提供了用于产生第一指纹图像的梯度表征的技术。 从第一指纹图像中选择一个或多个指纹特征点。 为一个或多个所选择的指纹特征点中的每一个获得区域。 该区域是靠近给定指纹特征点的区域的表示。 所获得的区域被分成多个子区域。 为多个子区域中的每个子区域生成直方图。 对于一个或多个所选择的指纹特征点中的每一个，将一个或多个生成的直方图组合成级联直方图。 串联直方图用于识别目的。
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公开(公告)号：US08180121B2
公开(公告)日：2012-05-15
申请号：US12132813
申请日：2008-06-04
申请人： Rudolf Maarten Bolle , Sharat Suresh Chikkerur , Sharathchandra UmapathiRao Pankanti , Nalini Kanta Ratha
发明人： Rudolf Maarten Bolle , Sharat Suresh Chikkerur , Sharathchandra UmapathiRao Pankanti , Nalini Kanta Ratha
IPC分类号： G06K9/00
CPC分类号： G06K9/00073
摘要： A system and method for processing fingerprints includes representing each minutiae in a fingerprint by determining quantized Gabor coefficients to represent texture content of the minutiae. A distance is computed between represented minutiae and stored minutiae. The minutiae matches are ranked based on the distance to identify the fingerprint.
摘要翻译： 用于处理指纹的系统和方法包括通过确定用于表示细节的纹理内容的量化Gabor系数来表示指纹中的每个细节。 在代表的细节和存储的细节之间计算距离。 细节匹配根据识别指纹的距离进行排名。
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公开(公告)号：US20080232654A1
公开(公告)日：2008-09-25
申请号：US12132813
申请日：2008-06-04
申请人： Rudolf Maarten Bolle , Sharat Suresh Chikkerur , Sharathchandra UmapathiRao Pankanti , Nalini Kanta Ratha
发明人： Rudolf Maarten Bolle , Sharat Suresh Chikkerur , Sharathchandra UmapathiRao Pankanti , Nalini Kanta Ratha
IPC分类号： G06K9/00
CPC分类号： G06K9/00073
摘要： A system and method for processing fingerprints includes representing each minutiae in a fingerprint by determining quantized Gabor coefficients to represent texture content of the minutiae. A distance is computed between represented minutiae and stored minutiae. The minutiae matches are ranked based on the distance to identify the fingerprint.
摘要翻译： 用于处理指纹的系统和方法包括通过确定用于表示细节的纹理内容的量化Gabor系数来表示指纹中的每个细节。 在代表的细节和存储的细节之间计算距离。 细节匹配根据识别指纹的距离进行排序。
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公开(公告)号：US20070297653A1
公开(公告)日：2007-12-27
申请号：US11472709
申请日：2006-06-22
申请人： Rudolf Maarten Bolle , Sharat Suresh Chikkerur , Sharathchandra UmapathiRao Pankanti , Nalini Kanta Ratha
发明人： Rudolf Maarten Bolle , Sharat Suresh Chikkerur , Sharathchandra UmapathiRao Pankanti , Nalini Kanta Ratha
IPC分类号： G06K9/00
CPC分类号： G06K9/00073
摘要： A system and method for processing fingerprints includes representing each minutiae in a fingerprint by determining quantized Gabor coefficients to represent texture content of the minutiae. A distance is computed between represented minutiae and stored minutiae. The minutiae matches are ranked based on the distance to identify the fingerprint.
摘要翻译： 用于处理指纹的系统和方法包括通过确定用于表示细节的纹理内容的量化Gabor系数来表示指纹中的每个细节。 在代表的细节和存储的细节之间计算距离。 细节匹配根据识别指纹的距离进行排名。
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8.发明授权System and method for distortion control in live-scan inkless fingerprint images 失效实时扫描无墨指纹图像中的失真控制系统和方法
公开(公告)号：US6064753A
公开(公告)日：2000-05-16
申请号：US872639
申请日：1997-06-10
申请人： Rudolf Maarten Bolle , Robert Steven Germain , Richard Lawrence Garwin , James Lewis Levine , Sharathchandra Umpathirao Pankanti , Nalini Kanta Ratha , Michael Alan Schappert
发明人： Rudolf Maarten Bolle , Robert Steven Germain , Richard Lawrence Garwin , James Lewis Levine , Sharathchandra Umpathirao Pankanti , Nalini Kanta Ratha , Michael Alan Schappert
CPC分类号： G06K9/036 , G06K9/00013
摘要： A computer system and method determines the force and/or torque applied during the image acquisition stage of a biometric characteristic. Images with very high or very low pressure or high shear torque are rejected and user/operator is notified to re-acquire the image. Alternatively, the application of force and torque by the subject is restricted mechanically so that the images are acquired while the force and/or torque are within acceptable ranges.
摘要翻译： 计算机系统和方法确定在生物特征的图像采集阶段期间施加的力和/或扭矩。 具有非常高或非常低的压力或高剪切力矩的图像被拒绝并且通知用户/操作者重新获取图像。 或者，由受试者施加的力和扭矩被机械限制，使得在力和/或扭矩在可接受的范围内时获取图像。
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9.发明授权Method for biometric-based authentication in wireless communication for access control 有权用于访问控制的无线通信中的基于生物特征的认证的方法公开(公告)号：US06819219B1
公开(公告)日：2004-11-16
申请号：US09689598
申请日：2000-10-13
申请人： Rudolf Maarten Bolle , Sharon Louise Nunes , Sharathchandra Pankanti , Nalini Kanta Ratha , Barton Allen Smith , Thomas Guthrie Zimmerman
发明人： Rudolf Maarten Bolle , Sharon Louise Nunes , Sharathchandra Pankanti , Nalini Kanta Ratha , Barton Allen Smith , Thomas Guthrie Zimmerman
IPC分类号： G05B1900
CPC分类号： H04L63/0853 , G05B2219/24162 , G06F21/32 , G06F21/35 , G06Q20/341 , G06Q20/40145 , G07C9/00087 , G07C2009/00095 , G07F7/1008 , H04L63/0861 , H04W12/06
摘要： Smart cards systems that are utilized in biometric authentication are slow in processing and have the cards themselves have the added disadvantage of being misplaced or lost. Moreover, storing biometric data (on a database) over a network poses security issues that in extreme instances can be compromised. Significant security can be achieved if the biometric templates are stored locally in a portable device. A user can use the portable device to either transmit wirelessly the stored biometric for authentication purposes, or a user can locally measure a biometric using the portable device and match it against a biometric which is also stored locally (in the portable device).
摘要翻译： 在生物认证中使用的智能卡系统处理速度较慢，并且卡本身具有错位或丢失的附加缺点。 此外，通过网络存储生物特征数据（在数据库上）会造成在极端情况下可能受到威胁的安全问题。 如果生物特征模板本地存储在便携式设备中，则可以实现显着的安全性。 用户可以使用便携式设备以无线方式传送存储的生物特征用于认证目的，或者用户可以使用便携式设备本地测量生物特征，并使其与本地（在便携式设备中）存储的生物特征匹配。
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10.发明申请公开(公告)号：US20090175513A1
公开(公告)日：2009-07-09
申请号：US11971634
申请日：2008-01-09
IPC分类号： G06K9/00
CPC分类号： G06K9/00093
摘要： Techniques for generating a distorted fingerprint representation for a given fingerprint image are provided. First, at least one fingerprint feature point from a given fingerprint image is selected. At least one representation of a region proximate to the selected fingerprint feature point is then generated. Next, the representation of the region proximate to the selected fingerprint feature point is distorted. The distortion comprises applying a random projection to the representation to generate a randomly projected representation of the region proximate to the selected fingerprint feature point. A distorted template is then formed, wherein the distorted template comprises the randomly projected representation of the region proximate to the selected fingerprint feature point.
摘要翻译： 提供了用于产生给定指纹图像的失真指纹表示的技术。 首先，选择来自给定指纹图像的至少一个指纹特征点。 然后生成靠近所选指纹特征点的区域的至少一个表示。 接下来，接近所选指纹特征点的区域的表示是失真的。 失真包括对表示应用随机投影以产生接近所选指纹特征点的区域的随机投影表示。 然后形成失真的模板，其中失真模板包括靠近所选指纹特征点的区域的随机投影表示。
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