公开(公告)号：WO0167945B1

公开(公告)日：2002-01-03

申请号：PCT/US0107902

申请日：2001-03-13

Applicant: SCHWARTZ BERNARD ,  TAKAMOTO TAKENORI

Inventor： SCHWARTZ BERNARD ,  TAKAMOTO TAKENORI

IPC: A61B3/12 ,  A61B3/14

CPC classification number: A61B3/14 ,  A61B3/1216

Abstract: A system is described for obtaining standardized photographs of the iris with exposure dependent on iris color. Analysis of iris color of these photographs uses image analysis digitized in the red-green-blue spectrum for determining changes of iris color over time in patients with disease and on drug therapy. A region of interest of the iris is selected to minimize artifacts such as corneal reflection. White light (Red-Green-Blue) spectrum or color ratios such as red/blue are used to measure density and areas of color over at selected time intervals. The image analysis digitized in the red-green-blue spectrum for measuring color of iris photographs show no significant change in iris color in normals, but did show significant changes in iris color in glaucomatous eyes treated with precription eye drops.

Abstract translation: 描述了一种用于获得依赖于虹膜颜色的曝光的虹膜的标准照片的系统。 这些照片的虹膜色彩分析使用红绿色光谱数字化的图像分析，用于确定患有疾病和药物治疗的患者随着时间的变化。 选择虹膜的感兴趣区域以最小化诸如角膜反射的伪影。 使用白光（红 - 绿 - 蓝）光谱或颜色比例（如红/蓝）来以选定的时间间隔测量颜色的浓度和面积。 用于测量虹膜照片颜色的红 - 绿 - 蓝色光谱图像分析显示，正常情况下虹膜颜色无明显变化，但在用眼药水治疗的青光眼患者中，虹膜颜色显示出显着变化。

公开(公告)号：WO00030525A2

公开(公告)日：2000-06-02

申请号：PCT/US1999/026611

申请日：1999-11-10

IPC: A61B3/12 ,  G06K9/00 ,  G06K9/22 ,  A61B

CPC classification number: G06K9/00912 ,  A61B3/1216 ,  G06K9/00604 ,  G06K9/228

Abstract: A compact, handheld imaging apparatus which can be used to capture high-quality iris images for identification of a person. The handheld iris imager is non-invasive and non-contacting and comprises a camera, a cold mirror, a lens, and an illuminator. The imager has sensors and indicators which assist a user in aligning and focusing the device. The imager also automatically captures the image when proper positioning is achieved. A template representative of the iris features is extracted and then compared to a database of previously stored templates to identify the person.

Abstract translation: 一种紧凑型手持成像设备，可用于捕获用于识别人的高质量虹膜图像。 手持式虹膜成像仪是非侵入性且非接触式的，包括相机，冷镜，透镜和照明器。 该成像仪具有传感器和指示器，可帮助用户对准和对准设备。 当实现适当的定位时，成像器也自动捕获图像。 提取代表虹膜特征的模板，然后将其与先前存储的模板的数据库进行比较以识别该人。

公开(公告)号：WO99029102A1

公开(公告)日：1999-06-10

申请号：PCT/US1998/025421

申请日：1998-11-30

IPC: A61B3/12 ,  G06K9/20 ,  H04N5/235 ,  H04N5/272 ,  A61B5/117

CPC classification number: G06K9/00604 ,  A61B3/1216 ,  G06K9/2036 ,  H04N5/2354

Abstract: In a method of image subtraction a series of frames of a subject are taken using a video camera. The subject is illuminated in a manner so that illumination is alternately on, then off for successive fields within the image frame. A single frame is grabbed and an absolute difference between the odd field and the even field within that single image frame is determined. The resulting absolute difference image will represent the subject as illuminated by the system illumination only, and not by any ambient illumination, and can then be used to identify the subject in the image.

Abstract translation: 在图像减法的方法中，使用摄像机拍摄被摄体的一系列帧。 受试者以照明交替地开启的方式照亮，然后关闭图像帧内的连续场。 抓取单个帧，并确定该单个图像帧内的奇数场和偶数场之间的绝对差。 所产生的绝对差分图像将仅表示由系统照明照射的被摄体，而不是通过任何环境照明，并且然后可用于识别图像中的被摄体。

公开(公告)号：WO1997046979A1

公开(公告)日：1997-12-11

申请号：PCT/GB1997001525

申请日：1997-06-06

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  SEAL, Christopher, Henry ,  GIFFORD, Maurice, Merrick ,  McCARTNEY, David, John

Inventor： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

IPC: G07C09/00

CPC classification number: A61B3/1216 ,  G06K9/00604 ,  G06K9/2018 ,  G06K9/228 ,  G07C9/00158

Abstract: A hand-held imaging apparatus (125) for capturing an image of an eye (110) comprises a housing (125) having an eye-cup (115) at a rear window (120) to position the eye. The housing (125) provides a line-of-sight through the apparatus to a front window (140). An angled, semi-reflecting mirror (145) in the line of sight directs an image of the eye to a camera (135) for the purposes of image capture. The apparatus also includes a transmitter (160) and a receiver (162) to transmit and receive data relating to iris image information to and from a remote apparatus.

Abstract translation: 用于捕获眼睛（110）的图像的手持式成像设备（125）包括在后窗（120）处具有用于定位眼睛的眼杯（115）的壳体（125）。 壳体（125）通过该装置向前窗（140）提供视线。 为了图像捕捉的目的，视线中的成角度的半反射镜（145）将眼睛的图像引导到相机（135）。 该装置还包括发送器（160）和接收器（162），用于向远程设备发送和接收与虹膜图像信息有关的数据。

公开(公告)号：WO1994009446A1

公开(公告)日：1994-04-28

申请号：PCT/US1992008673

申请日：1992-10-10

Applicant: DAUGMAN, John, G.

IPC: G06K09/00

CPC classification number: G06F21/32 ,  A61B3/1216 ,  A61B5/117 ,  A61B5/1171 ,  G06K9/00597 ,  G06K9/00906 ,  G06K9/4609 ,  G06K9/52 ,  G07C9/00158

Abstract: Image analysis algorithms find the iris in a live video image (10) of a person's face, and encode its texture into an "iris code" (24). Iris texture is extracted from the image at multiple scales of analysis by a self-similar set of quadrature bandpass filters defined in a dimensionless polar coordinate system. The sign of the projection of many different parts of the iris onto these filters determines each bit in an iris code. Comparisons between codes are readily implemented by the Exclusive-OR (XOR) logical operation. Pattern recognition is achieved by combining signal processing methods with statistical decision theory, leading to a statistical test of independence based on a similarity metric (Hamming distance) (26) that is computed from the XOR of any two iris codes. This measure positively establishes, confirms, or disconfirms, the identity of any individual (28). It also generates an objective confidence level (30) associated with the identification decision.

Abstract translation: 图像分析算法在人脸的实时视频图像（10）中找到虹膜，并将其纹理编码为“虹膜代码”（24）。 通过在无量纲极坐标系中定义的自相似的正交带通滤波器组在多个分析尺度上从图像中提取虹膜纹理。 将虹膜的许多不同部分投影到这些滤光片上的符号确定了虹膜代码中的每个位。 代码之间的比较很容易通过异或（XOR）逻辑运算来实现。 通过将信号处理方法与统计判定理论结合起来，实现模式识别，从而根据任意两个虹膜代码的异或运算得出的相似性度量（汉明距离）（26）进行独立性的统计检验。 这一措施积极地确定，确认或不确定任何个人的身份（28）。 它还产生与识别决定相关联的客观置信水平（30）。

公开(公告)号：WO2014205022A1

公开(公告)日：2014-12-24

申请号：PCT/US2014/042838

申请日：2014-06-18

Applicant: DELTA ID INC. ,  PRABHAKAR, Salil ,  DVOROVKIN, Valentine

Inventor： PRABHAKAR, Salil ,  DVOROVKIN, Valentine

IPC: A61B3/12

CPC classification number: G02B13/0015 ,  A61B3/1216 ,  A61B5/117 ,  A61B5/1171 ,  G02B5/208 ,  G06K9/00604 ,  G06K9/00617 ,  H04N5/2254 ,  H04N5/23212 ,  H04N5/23245

Abstract: The invention comprises an iris imaging apparatus comprising an image sensor and an optical assembly. The optical assembly comprises an image-side surface and an object-side surface. The optical imaging lens assembly may be configured such that D1 RES ≥ 10 pixels per mm, PX SIZE ≤ 1.75 μm; and D2 ≤ 500 mm. D1 is a distance between the object- side surface of the optical assembly and the imaging surface. D2 is a maximum distance between the object-side surface of the optical assembly and the object plane. PX RES is pixel resolution in the object plane, achieved by the image sensor in imaging the object plane, when the distance between the object-side surface of the optical assembly and the object plane is less than or equal to D2. PX SIZE is pixel size of the image sensor. The invention additionally includes methods for configuring an imaging apparatus for iris imaging.

Abstract translation: 本发明包括一种包括图像传感器和光学组件的虹膜成像设备。 光学组件包括图像侧表面和物体侧表面。 光学成像透镜组件可以被配置为使得D1 <6mm，PXRES≥10个像素/ mm，PXSIZE≤175μm; D2≤500mm。 D1是光学组件的物体侧表面与成像表面之间的距离。 D2是光学组件的物体侧表面和物平面之间的最大距离。 当光学组件的物体侧表面与物平面之间的距离小于或等于D2时，PXRES是物体平面中的像素分辨率，由图像传感器在物体平面成像时实现。 PXSIZE是图像传感器的像素大小。 本发明还包括用于配置用于虹膜成像的成像装置的方法。

公开(公告)号：WO2013142031A2

公开(公告)日：2013-09-26

申请号：PCT/US2013/028643

申请日：2013-03-01

Applicant: AOPTIX TECHNOLOGIES, INC.

Inventor： MACKINNON, Neil

IPC: H04N7/18

CPC classification number: A61B3/1216 ,  G06K9/00604 ,  G06K9/2036 ,  H04N5/2256

Abstract: An iris imaging and illumination system is used to resolve and record the fine musculature features of an iris. The system can improve the quality of an iris image and facilitate the image capturing process by focusing illumination on an ocular area of a subject. By limiting illumination of other parts of a face, reflections from the face are reduced. The system has a compact physical arrangement by placing the illumination sources proximate to one another and splaying them in order to focus illumination on the ocular areas of a subject.

Abstract translation: 虹膜成像和照明系统用于解决和记录虹膜的细微肌肉组织特征。 该系统可以改善虹膜图像的质量，并且通过将照明聚焦在被摄体的眼部区域来促进图像捕获过程。 通过限制脸部其他部位的照明，减少了脸部的反射。 该系统具有紧凑的物理布置，通过将照明源靠近彼此并且张开它们，以便将照明聚焦在被摄体的眼部区域上。

公开(公告)号：WO2012035351A1

公开(公告)日：2012-03-22

申请号：PCT/GB2011/051736

申请日：2011-09-15

Applicant: KWONG, Tsong Yun

Inventor： KWONG, Tsong Yun

IPC: A61B1/227 ,  A61B3/00 ,  A61B3/12

CPC classification number: A61B3/1208 ,  A61B1/06 ,  A61B1/227 ,  A61B3/1216

Abstract: A device forming a combination ophthalmoscope and otoscope, having a housing (4) supporting a light source (10) and a plurality of lenses (8, 9), the light source (10) defining an illumination light path (14) which illuminates in use a region of interest (15), the housing having an aperture (12) defining a viewing light path (13) along which the region of interest (15) can be viewed, the lenses (8, 9) being mounted on a support (1) relative to the housing (4) so as to be moveable relative to the housing (1) so as to allow selection of a lens from the plurality of lenses (8, 9) to be disposed in the viewing light path, and in which the plurality of lenses form an ophthalmoscopy set (8) comprising at least one ophthalmoscopy lens and an otoscopy set (9) comprising at least one otoscopy lens.

Abstract translation: 一种形成组合检眼镜和耳镜的装置，具有支撑光源（10）的外壳（4）和多个透镜（8,9），所述光源限定照明光照射的照明光路（14） 使用感兴趣的区域（15），所述壳体具有限定可观看感兴趣区域（15）的观察光路（13）的孔（12），所述透镜（8,9）安装在支撑件 （1）相对于所述壳体（4）相对于所述壳体（1）可移动，以允许从所述多个透镜（8,9）中选择要设置在所述观察光路中的透镜;以及 其中所述多个透镜形成包括至少一个检眼透镜和包括至少一个耳镜透镜的耳镜组（9）的检眼镜组件（8）。

公开(公告)号：WO2008039252A3

公开(公告)日：2008-09-12

申请号：PCT/US2007011507

申请日：2007-05-14

Applicant: RETICA SYSTEMS INC ,  FRIEDMAN MARC D ,  CASAVERDE PABLO ,  YANSEN DON ,  MCNERNEY TIM ,  TOSA YASUNARI ,  USHER DAVID ,  ACCOMANDO NICHOLAS A ,  MULLER DAVID ,  HEACOCK GREG ,  MARSHALL JOHN

Inventor： FRIEDMAN MARC D ,  CASAVERDE PABLO ,  YANSEN DON ,  MCNERNEY TIM ,  TOSA YASUNARI ,  USHER DAVID ,  ACCOMANDO NICHOLAS A ,  MULLER DAVID ,  HEACOCK GREG ,  MARSHALL JOHN

IPC: H04K1/10 ,  H04L9/00

CPC classification number: H04N7/18 ,  A61B3/1216 ,  A61B3/14 ,  G06K9/00597

Abstract: A multimodal biometric identification system captures and processes images of both the iris and the retina for biometric identification. Another multimodal ocular system captures and processes images of the iris and/or the from both eyes of a subject. Biometrics based on data provided by these systems are more accurate and robust than using biometrics that include data from only the iris or only the retina from a single eye. An exemplary embodiment emits photons to the iris and the retina of both eyes, an iris image sensor that captures an image of the iris when the iris reflects the emitted light, a retina image sensor that captures an image of the retina when the retina reflects the emitted light, and a controller that controls the iris and the retina illumination sources, where the captured image of the iris and the captured image of the retina contain biometric data.

Abstract translation: 多模式生物识别系统捕获并处理虹膜和视网膜的图像以进行生物识别。 另一个多峰视觉系统捕获并处理虹膜的图像和/或来自对象双眼的图像。 基于这些系统提供的数据的生物识别技术比使用仅来自虹膜的数据或仅来自单眼的视网膜的生物识别技术更准确和鲁棒。 示例性实施例将光子发射到虹膜和双眼视网膜，虹膜图像传感器，当虹膜反射发射的光时捕获虹膜的图像;视网膜图像传感器，其在视网膜反射时捕获视网膜的图像 以及控制光圈和视网膜照明源的控制器，其中所述虹膜的捕获图像和所述捕获的视网膜的图像包含生物特征数据。

公开(公告)号：WO2008039252A9

公开(公告)日：2008-06-19

申请号：PCT/US2007011507

申请日：2007-05-14

Applicant: RETICA SYSTEMS INC ,  FRIEDMAN MARC D ,  CASAVERDE PABLO ,  YANSEN DON ,  MCNERNEY TIM ,  TOSA YASUNARI ,  USHER DAVID ,  ACCOMANDO NICHOLAS A ,  MULLER DAVID ,  HEACOCK GREG ,  MARSHALL JOHN

Inventor： FRIEDMAN MARC D ,  CASAVERDE PABLO ,  YANSEN DON ,  MCNERNEY TIM ,  TOSA YASUNARI ,  USHER DAVID ,  ACCOMANDO NICHOLAS A ,  MULLER DAVID ,  HEACOCK GREG ,  MARSHALL JOHN

IPC: A61B3/14 ,  A61B3/15 ,  G06K9/62

CPC classification number: H04N7/18 ,  A61B3/1216 ,  A61B3/14 ,  G06K9/00597

Abstract: A multimodal biometric identification system captures and processes images of both the iris and the retina for biometric identification. Another multimodal ocular system captures and processes images of the iris and/or the from both eyes of a subject. Biometrics based on data provided by these systems are more accurate and robust than using biometrics that include data from only the iris or only the retina from a single eye. An exemplary embodiment emits photons to the iris and the retina of both eyes, an iris image sensor that captures an image of the iris when the iris reflects the emitted light, a retina image sensor that captures an image of the retina when the retina reflects the emitted light, and a controller that controls the iris and the retina illumination sources, where the captured image of the iris and the captured image of the retina contain biometric data.

Abstract translation: 多模式生物识别系统捕获和处理虹膜和视网膜的图像以用于生物识别。 另一种多模式眼部系统捕捉和处理虹膜和/或来自对象双眼的图像。 基于这些系统提供的数据的生物特征识别比使用生物特征识别更加准确和可靠，这些生物特征包括仅来自虹膜或仅来自单眼的视网膜的数据。 示例性实施例向双眼的虹膜和视网膜发射光子，当虹膜反射发射的光时捕获虹膜图像的虹膜图像传感器，视网膜图像传感器，其在视网膜反射时捕获视网膜的图像 发出的光线以及控制虹膜和视网膜照射源的控制器，其中虹膜的拍摄图像和视网膜的拍摄图像包含生物统计数据。