公开(公告)号：US20070222781A1

公开(公告)日：2007-09-27

申请号：US11788249

申请日：2007-04-19

申请人： Kenji Kondo ,  Katsuhiro Kanamori ,  Kunio Nobori

发明人： Kenji Kondo ,  Katsuhiro Kanamori ,  Kunio Nobori

IPC分类号： G06T15/50 ,  G06T15/60

CPC分类号： G06T15/506

摘要： A polarized image acquisition section shoots a subject through a polarizing element operable to set principal axes of which directions are different from each other. An incident plane specifying section specifies an incident plane of each pixel, and an incident angle computation section computes an incident angle of each pixel. A classifying section clusters pixels similar to each other in both incident plane and incident angel. A reflection component separation section performs reflection component separation on each clustered pixel set on the assumption of probabilistic independence between the diffuse reflection component and the specular reflection component.

摘要翻译： 偏振图像获取部分通过可操作以设定方向彼此不同的主轴的偏振元件拍摄对象。 入射平面指定部指定每个像素的入射面，入射角度运算部计算各像素的入射角。 分类部分将入射平面和入射角中的像素彼此相似。 反射分量分离部，假设在漫反射分量与镜面反射分量之间的概率独立性的假设下，对各聚集像素组进行反射分量分离。

公开(公告)号：US07626585B2

公开(公告)日：2009-12-01

申请号：US11788249

申请日：2007-04-19

申请人： Kenji Kondo ,  Katsuhiro Kanamori ,  Kunio Nobori

发明人： Kenji Kondo ,  Katsuhiro Kanamori ,  Kunio Nobori

IPC分类号： G06T15/50

CPC分类号： G06T15/506

摘要： A polarized image acquisition section shoots a subject through a polarizing element operable to set principal axes of which directions are different from each other. An incident plane specifying section specifies an incident plane of each pixel, and an incident angle computation section computes an incident angle of each pixel. A classifying section clusters pixels similar to each other in both incident plane and incident angle. A reflection component separation section performs reflection component separation on each clustered pixel set on the assumption of probabilistic independence between the diffuse reflection component and the specular reflection component.

摘要翻译： 偏振图像获取部分通过可操作以设定方向彼此不同的主轴的偏振元件拍摄对象。 入射平面指定部指定每个像素的入射面，入射角度运算部计算各像素的入射角。 分类部分在入射平面和入射角度中聚集彼此相似的像素。 反射分量分离部，假设在漫反射分量与镜面反射分量之间的概率独立性的假设下，对各聚集像素组进行反射分量分离。

公开(公告)号：US07801336B2

公开(公告)日：2010-09-21

申请号：US12390705

申请日：2009-02-23

申请人： Kenji Kondo ,  Takeo Azuma

发明人： Kenji Kondo ,  Takeo Azuma

IPC分类号： G06K9/00

CPC分类号： G06K9/00597 ,  A61B3/112 ,  A61B3/12 ,  G06T2207/30041

摘要： An eye (EY) of a person to be shot is illuminated coaxially with the optical axis of a camera (11), and then, is shot. At this time, a retinal reflex is caused and the luminance in the pupil region becomes high if the eye (EY) is a living eye. A living eye judgment section (17) judges whether an eye included in the image is a living eye is performed based on the luminance in the pupil region of the image captured by the camera (11).

摘要翻译： 要被拍摄的人的眼睛（EY）与相机（11）的光轴同轴地照射，然后被拍摄。 此时，如果眼睛（EY）是活眼，则引起视网膜反射并且瞳孔区域中的亮度变高。 生命眼判断部（17）基于由照相机（11）拍摄的图像的瞳孔区域的亮度，判断图像中包含的眼睛是否为活眼。

公开(公告)号：US07616785B2

公开(公告)日：2009-11-10

申请号：US10540060

申请日：2004-07-01

申请人： Kenji Kondo ,  Takeo Azuma

发明人： Kenji Kondo ,  Takeo Azuma

IPC分类号： G06K9/00

CPC分类号： G06K9/00597 ,  A61B3/112 ,  A61B3/12 ,  G06T2207/30041

摘要： An eye (EY) of a person to be shot is illuminated coaxially with the optical axis of a camera (11), and then, is shot. At this time, a retinal reflex is caused and the luminance in the pupil region becomes high if the eye (EY) is a living eye. A living eye judgment section (17) judges whether an eye included in the image is a living eye is performed based on the luminance in the pupil region of the image captured by the camera (11).

摘要翻译： 要被拍摄的人的眼睛（EY）与相机（11）的光轴同轴地照射，然后被拍摄。 此时，如果眼睛（EY）是活眼，则引起视网膜反射并且瞳孔区域中的亮度变高。 生命眼判断部（17）基于由照相机（11）拍摄的图像的瞳孔区域的亮度，判断图像中包含的眼睛是否为活眼。

公开(公告)号：US08208693B2

公开(公告)日：2012-06-26

申请号：US13230900

申请日：2011-09-13

申请人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

发明人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

IPC分类号： G06K9/00

CPC分类号： G06K9/00597

摘要： A plurality of iris images are acquired (SA0), and aggregation of iris images of which distribution of pupil openings is uniform is acquired from the plurality of iris images by duplication and/or deletion (SA1). Features are generated from the respective iris images that belong to the aggregation (SA2), and a predetermined number of registration features are selected from the features, using authentication performance as an evaluation index.

摘要翻译： 通过复制和/或删除（SA1）从多个虹膜图像获取多个虹膜图像（SA0），并且通过复制和/或删除从多个虹膜图像获取瞳孔开口分布均匀的虹膜图像的聚集。 从属于聚合（SA2）的各个虹膜图像生成特征，并且使用认证性能作为评价指标，从特征中选择预定数量的登记特征。

公开(公告)号：US07796784B2

公开(公告)日：2010-09-14

申请号：US10506311

申请日：2003-10-28

申请人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

发明人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

IPC分类号： G06K9/00 ,  G06K9/54 ,  G06F7/00

CPC分类号： G06T7/0002 ,  G06K9/00597 ,  G06T7/62 ,  G06T2207/30041

摘要： A plurality of iris codes are registered for each registrant in an iris database (12) together with pupil diameter-iris diameter ratio R. At the time of authentication, an iris code is obtained from a captured iris image by feature extraction while pupil diameter-iris diameter ratio R is obtained. Ratio R obtained at the time of registration and ratio R obtained at the time of authentication are compared to specify an appropriate iris code from the iris database (12) as an item to be collated before authentication.

摘要翻译： 在虹膜数据库（12）中的每个注册者登记多个虹膜代码以及瞳孔直径 - 虹膜直径比R.在认证时，通过特征提取从捕获的虹膜图像获得虹膜代码， 获得虹膜直径比R. 将在注册时获得的比率R和在认证时获得的比率R进行比较，以从虹膜数据库（12）中指定合适的虹膜代码作为要在验证之前对照的项目。

公开(公告)号：US07623686B2

公开(公告)日：2009-11-24

申请号：US11172640

申请日：2005-07-01

申请人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

发明人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

IPC分类号： G06K9/00

CPC分类号： G06K9/00597

摘要： A plurality of iris images are acquired (SA0), and aggregation of iris images of which distribution of pupil openings is uniform is acquired from the plurality of iris images by duplication and/or deletion (SA1). Features are generated from the respective iris images that belong to the aggregation (SA2), and a predetermined number of registration features are selected from the features, using authentication performance as an evaluation index.

摘要翻译： 通过复制和/或删除（SA1）从多个虹膜图像获取多个虹膜图像（SA0），并且通过复制和/或删除从多个虹膜图像获取瞳孔开口分布均匀的虹膜图像的聚集。 从属于聚合（SA2）的各个虹膜图像生成特征，并且使用认证性能作为评价指标，从特征中选择预定数量的登记特征。

公开(公告)号：US20090161923A1

公开(公告)日：2009-06-25

申请号：US12390705

申请日：2009-02-23

申请人： Kenji Kondo ,  Takeo Azuma

发明人： Kenji Kondo ,  Takeo Azuma

IPC分类号： G06K9/00

CPC分类号： G06K9/00597 ,  A61B3/112 ,  A61B3/12 ,  G06T2207/30041

摘要： An eye (EY) of a person to be shot is illuminated coaxially with the optical axis of a camera (11), and then, is shot. At this time, a retinal reflex is caused and the luminance in the pupil region becomes high if the eye (EY) is a living eye. A living eye judgment section (17) judges whether an eye included in the image is a living eye is performed based on the luminance in the pupil region of the image captured by the camera (11).

摘要翻译： 要被拍摄的人的眼睛（EY）与相机（11）的光轴同轴地照射，然后被拍摄。 此时，如果眼睛（EY）是活眼，则引起视网膜反射并且瞳孔区域中的亮度变高。 生命眼判断部（17）基于由照相机（11）拍摄的图像的瞳孔区域的亮度，判断图像中包含的眼睛是否为活眼。

公开(公告)号：US07486806B2

公开(公告)日：2009-02-03

申请号：US10495739

申请日：2003-09-12

申请人： Takeo Azuma ,  Kenji Kondo ,  Masahiro Wakamori

发明人： Takeo Azuma ,  Kenji Kondo ,  Masahiro Wakamori

IPC分类号： G06K9/00

CPC分类号： G06K9/00597

摘要： In iris authentication, iris regions are extracted from a plurality of images (2a, 2b). The extracted iris regions are subjected to polar coordinate transformation (3a, 3b) and band limitation (4a, 4b). Thereafter, an iris code is generated from the coordinate-transformed, band-limited iris regions (5a, 5b). The iris code is subjected to rotational compensation (6a, 6b). A plurality of resultant iris codes are synthesized into a single iris code by determining the bit value of each bit based on a majority rule (7a, 7b).

摘要翻译： 在虹膜认证中，从多个图像（2a，2b）中提取虹膜区域。 提取的虹膜区域经受极坐标变换（3a，3b）和带限制（4a，4b）。 此后，从坐标变换的带限制光圈区域（5a，5b）生成虹膜码。 对虹膜代码进行旋转补偿（6a，6b）。 通过基于多数规则（7a，7b）确定每个比特的比特值，将多个合成的虹膜码合成为单个虹膜码。

公开(公告)号：US20110317883A1

公开(公告)日：2011-12-29

申请号：US13230900

申请日：2011-09-13

申请人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

发明人： Kenji Kondo ,  Takeo Azuma ,  Masahiro Wakamori

IPC分类号： G06K9/00

CPC分类号： G06K9/00597

摘要： A plurality of iris images are acquired (SA0), and aggregation of iris images of which distribution of pupil openings is uniform is acquired from the plurality of iris images by duplication and/or deletion (SA1). Features are generated from the respective iris images that belong to the aggregation (SA2), and a predetermined number of registration features are selected from the features, using authentication performance as an evaluation index.

摘要翻译： 通过复制和/或删除（SA1）从多个虹膜图像获取多个虹膜图像（SA0），并且通过复制和/或删除从多个虹膜图像获取瞳孔开口分布均匀的虹膜图像的聚集。 从属于聚合（SA2）的各个虹膜图像生成特征，并且使用认证性能作为评价指标，从特征中选择预定数量的登记特征。