Abstract:
A method segments iris images from eye image data captured from non-cooperative subjects. The method includes receiving a frame of eye image data, and determining whether a pupil exists in the image by detecting glare areas in the image. Upon finding a pupil, subsequent images are processed with reference to the pupil location and a radius is calculated for the pupil. A k means clustering method and principal component analysis are used to locate pupil boundary points, which are fitted to a conic. Using the pupil boundary, an angular derivative is computed for each frame having a pupil and iris boundary points are fitted to a conic to identify an iris region between the iris boundary and the pupil boundary. Noise data are then removed from the iris region to generate an iris segment. A method for evaluating iris frame quality and iris image segmentation quality is also disclosed.
Abstract translation:一种方法从非合作对象捕获的眼图数据中分割虹膜图像。 该方法包括接收一帧眼图数据,并通过检测图像中的眩光区域来确定图像中是否存在瞳孔。 在找到瞳孔时,参考瞳孔位置处理随后的图像,并计算瞳孔的半径。 A k表示聚类方法,主成分分析用于定位适合于锥体的瞳孔边界点。 使用瞳孔边界,对于具有瞳孔的每个帧计算角度导数,并且将虹膜边界点拟合到圆锥,以识别虹膜边界和瞳孔边界之间的虹膜区域。 然后从虹膜区域移除噪声数据,以产生虹膜段。 还公开了一种用于评估虹膜框架质量和虹膜图像分割质量的方法。
Abstract:
A method segments iris images from eye image data captured from non-cooperative subjects. The method includes receiving a frame of eye image data, and determining whether a pupil exists in the image by detecting glare areas in the image. Upon finding a pupil, subsequent images are processed with reference to the pupil location and a radius is calculated for the pupil. A k means clustering method and principal component analysis are used to locate pupil boundary points, which are fitted to a conic. Using the pupil boundary, an angular derivative is computed for each frame having a pupil and iris boundary points are fitted to a conic to identify an iris region between the iris boundary and the pupil boundary. Noise data are then removed from the iris region to generate an iris segment. A method for evaluating iris frame quality and iris image segmentation quality is also disclosed.
Abstract translation:一种方法从非合作对象捕获的眼图数据中分割虹膜图像。 该方法包括接收一帧眼图数据,并通过检测图像中的眩光区域来确定图像中是否存在瞳孔。 在找到瞳孔时,参考瞳孔位置处理随后的图像,并计算瞳孔的半径。 A k表示聚类方法,主成分分析用于定位适合于锥体的瞳孔边界点。 使用瞳孔边界,对于具有瞳孔的每个帧计算角度导数,并且将虹膜边界点拟合到圆锥,以识别虹膜边界和瞳孔边界之间的虹膜区域。 然后从虹膜区域移除噪声数据,以产生虹膜段。 还公开了一种用于评估虹膜框架质量和虹膜图像分割质量的方法。
Abstract:
A method processes segmented iris images obtained by a non-cooperative image acquisition system to generate descriptors for features in the segmented iris image that are tolerant of segmentation error. The method includes receiving a segmented iris image, and selecting feature points in the segmented iris image to describe an iris locally.
Abstract:
Disclosed herein are methods and systems for real-time holographic augmented reality image processing. The processing includes the steps of receiving, at a cluster of servers and from an image capturing component, real-time image data; extracting one or more objects or a scene from the real-time image data based on results from real-time adaptive learning and one or more object/scene extraction parameters; extracting one or more human objects from the real-time image data based on results from real-time adaptive human learning and one or more human extraction parameters, receiving augmented reality (AR) input data; and creating holographic AR image data by projecting, for each image, the extracted object or scene, the extracted human object, and the AR input data using a multi-layered mechanism based on projection parameters. The real-time adaptive learning comprises object learning, object recognition, object segmentation, scene learning, scene recognition, scene segmentation, or a combination thereof. The real-time adaptive human learning comprises human characteristic learning, human recognition, human segmentation, human body movement tracking, or a combination thereof.
Abstract:
A method processes segmented iris images obtained by a non-cooperative image acquisition system to generate descriptors for features in the segmented iris image that are tolerant of segmentation error. The method includes receiving a segmented iris image, and selecting feature points in the segmented iris image to describe an iris locally.
Abstract:
Disclosed herein are methods and systems for real-time holographic augmented reality image processing. The processing includes the steps of receiving, at a cluster of servers and from an image capturing component, real-time image data; extracting one or more objects or a scene from the real-time image data based on results from real-time adaptive learning and one or more object/scene extraction parameters; extracting one or more human objects from the real-time image data based on results from real-time adaptive human learning and one or more human extraction parameters, receiving augmented reality (AR) input data; and creating holographic AR image data by projecting, for each image, the extracted object or scene, the extracted human object, and the AR input data using a multi-layered mechanism based on projection parameters. The real-time adaptive learning comprises object learning, object recognition, object segmentation, scene learning, scene recognition, scene segmentation, or a combination thereof. The real-time adaptive human learning comprises human characteristic learning, human recognition, human segmentation, human body movement tracking, or a combination thereof.
Abstract:
A method of generating a biometric feature descriptor has been developed that includes acquiring an image of an anatomical feature having a biometric feature, isolating a region of the image having the biometric feature, extracting image data from the image of the region to identify a plurality of features for the biometric feature, transforming the extracted image data for each identified feature into a plurality of feature descriptors, mapping the feature descriptors for the plurality of features into a first arrangement of feature descriptors, generating a second arrangement of feature descriptors with a non-invertible transform of the first arrangement of feature descriptors, and storing the second arrangement of feature descriptors into an electronic database.
Abstract:
A method for obtaining an identification characteristic for a subject includes acquiring an image of an eye of the subject, segmenting the eye image into different regions, extracting features in a sclera region segmented from the eye image, and generating data identifying at least one feature extracted from the sclera region of the eye image.
Abstract:
A method for obtaining an identification characteristic for a subject includes acquiring an image of an eye of the subject, segmenting the eye image into different regions, extracting features in a sclera region segmented from the eye image, and generating data identifying at least one feature extracted from the sclera region of the eye image.
Abstract:
A system with its methods of detecting whether users are willing to access the biometric systems has been developed that includes acquiring the signal of an anatomical feature having a biometric feature, acquiring a dynamic feature for willingness test with/without biometric feature, isolating a region of the signal having the biometric feature, extracting feature descriptors from the region to identify a user, extracting a unique user consent signature from the dynamic feature for willingness test, storing the of feature descriptors and willingness signature into an electronic database and matching the feature descriptors and consent signatures with the ones stored in the electronic database during registration. Two types of consent biometrics schemes with two authentication example designs are developed.