Fujitsu Corporation

Toshiba Storage Device Corporation

Fujitsu Frontech Limited

Takahiro Aoki

Mitsuaki Fukuda

Soichi Hama

Toshio Endoh

Masaki Watanabe

Shigenori Yanagi

Takeshi Hara

Atsushi Miki

Kiyoshi Chinzei

Satoshi Fukui

Shuji Kimura

Takayuki Sugiura

Naoyuki Fujimoto

Mieko Nakano

Mitsuhiro Gotoh

Hajime Nada

Shigeru Sasaki

Makoto Goto

Yuka Jo

Isao Iwaguchi

Yukio Abe

Morito Shiohara

Takao Abe

Takashi Shinzaki

Ryuta Tanaka

Masami Mizutani

Shigefumi Yamada

Osafumi Nakayama

Yukio Hirai

Hironori Yokoi

Shunji Saitoh

Yoshishige Murakami

Shunji Saitou

Mikihiro Okamoto

Mayumi Ohzora

An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: extract a plurality of feature points from a biometric image; calculate, for each of the feature points, respective feature vectors including the respective feature points from the biometric image; calculate bit strings by binarizing a value of each of dimensions for each of the calculated feature vectors; attach reliability to each of the calculated bit strings based on stability of the binarizing of the corresponding feature vector; and select a specific number of the bit strings from the calculated bit strings in accordance with values of the reliability.

Determining biometric authentication bit string reliability

An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: calculate a positional difference and a degree of similarity in feature value between each feature point in a verification image captured by an imaging device and each of a plurality of feature points in a registered image registered in advance; and match the verification image against the registered image by using the degree of similarity to a feature point having the degree of similarity that is second highest or lower for each feature point in the registered image in a case where a positional difference from a feature point having the degree of similarity that is highest in the verification image is greater than a threshold value.

Information processing apparatus, verification method, and computer-readable recording medium recording verification program

An information processing device includes: a memory; and a processor configured to, store, for each user, narrowing data and confirming data, which are associated with each other, as registration data in the memory, obtain candidates having a fewer number than a number of the users by collating the narrowing data extracted from collating biometric data acquired from a person to be authenticated with the narrowing data of each user in the memory, confirm a specific candidate from the candidates in response to respective pieces of similarity between the confirming data extracted from the collating biometric data and the confirming data of the registration data related to the candidates in the memory, and register the narrowing data extracted from the collating biometric data in the registration data of the specific candidate in a case where the similarity of the specific candidate is equivalent to or more than a threshold value.

Information processing device, biometric authentication method, and recording medium recording biometric authentication program

An image processing apparatus includes a memory and a processor coupled to the memory and the processor configured to obtain an image in which a subject is captured, calculate a modified luminance value of a first pixel included in the image by using a luminance value of the first pixel, luminance values of a plurality of pixels located in a surrounding region of the first pixel, and information indicating illumination intensity at each of the plurality of pixels; and correct the image in accordance with the modified luminance value of the first pixel.

Image processing apparatus and image processing method

An apparatus includes a processor that extracts a plurality of feature points from a biological image, calculates a feature value of each of the plurality of extracted feature points, normalizes the calculated feature values to values of N levels (N is any natural number) based on a distribution of the feature values, and translates each normalized feature value to binary data by setting a number of bits corresponding to the normalized feature value to one of two digits in accordance with to a given order to make the normalized feature value and the number of bits with the one digit proportional to each other.

Biological-image processing unit and method and program for processing biological image

A method for a verification process that performs neighbor discovery for one or more feature points projected to an m-dimensional space (m is a natural number equal to or greater than 2), includes: acquiring a feature point group including one or more feature points projected to coordinate values of the m-dimensional space ordered in a coordinate value order on each of two or more coordinate axes that define the m-dimensional spacer (m is a natural number equal to or greater than 2); selecting a datum axis on which a comparison time number in neighbor discovery is small, the comparison time number being obtained by performing simulation of neighbor discovery.

Method, apparatus, and non-transitory computer-readable storage medium for verification process

A biometric image capturing apparatus includes an irradiating unit configured to irradiate a subject with light, a camera configured to capture an image of the subject, a polarizing unit which is disposed on an optical path between the irradiating unit and the camera, and configured to allow passage of light in a first polarization direction and light in a second polarization direction, a processor configured to perform computation using a first image captured by the camera according to the light in the first polarization direction that has passed through the polarizing unit and a second image captured by the camera according to the light in the second polarization direction that has passed through the polarizing unit, and to determine whether the subject is a biological body according to a result of the computation performed by the computing unit.

Biometric image capturing apparatus and biometric image capturing method

An image processing apparatus approximates a three-dimensional shape of a target object, acquired from an image of of the target object, by a quadric surface, applies a plane expansion process that expands the quadric surface into an expansion plane, to data of the image, computes corresponding points before and after the plane expansion process, and generates normalized data of the image from the corresponding points that are computed. The corresponding points are computed based on a point on a straight line of the expansion plane in contact with a point on the quadric surface and corresponding to a reference point on the target object, and an intersection point of an imaginary straight line, passing through the point on the straight line and extending in a direction of a first normal vector with respect to the straight line, and a quadratic curve of the quadric surface.

Image processing apparatus, image processing method, and computer-readable storage medium

A biometric authentication device includes: a memory; and a processor coupled to the memory and the processor configured to execute a process, the process comprising: acquiring a plurality of sets of palm images taken under different illumination conditions of an illumination source from one another in obtaining images of a palm with light emitted from the illumination source; adjusting a time interval at which the imaging device acquires the image sets, in accordance with a condition for imaging the palm; extracting a biological feature from each of the image sets; and comparing each biological feature extracted by the extracting with a biological feature registered in advance.

Biometric authentication device, biometric authentication method, and computer-readable non-transitory medium

A three-dimensional shape measuring device is provided that enables an accuracy in measuring a three-dimensional shape of a subject to be improved even when a relationship between a luminance value and a distance deviates from an ideal point light source model in which the luminance value is inversely proportional to the square of the distance. A biometric authentication device includes a coefficient setting unit that sets a coefficient that is an index of a power in a model expression for making a luminance value of a captured image be proportional to an inverse of the power of a distance from a light source to a measurement point of the luminance value according to a prescribed condition, and a three-dimensional shape measuring unit that measures the three-dimensional shape of the subject according to the luminance value of the captured image and the coefficient.

Three-dimensional shape measuring device and three-dimensional shape measuring method

An image processing apparatus includes an imaging unit that divides an image of a subject into blocks, a quadric-surface fitting unit that calculates a distance from a reference position to the subject that corresponds to each block, a weight calculating unit that calculates a weight of each block according to the distance, and a barycenter calculating unit that corrects information about a size of the subject projected in each block based on the weight, and calculates barycentric coordinates based on the corrected information about the size of the subject.

Image processing apparatus, image processing method, and computer-readable recording medium

A processor estimates a shape of a subject on the basis of an image of the subject, and a memory stores the shape of the subject. The processor generates a quadratic surface connecting a plurality of points on the subject on the basis of the shape of the subject, and develops each of the plurality of points to a planar surface contacting the quadratic surface. Thereafter the processor corrects the image of the subject on the basis of a position of each of the plurality of points developed to the planar surface.

Image processing device and image processing method

A device includes an illumination device that casts light of a prescribed polarization direction on a scattering body, a camera that picks up images of the scattering body at a plurality of different polarization angles, and a processor that executes a process of generating and outputting an inner layer image, of an inner layer of an inside of the scattering body, in response to a depth from a surface of the scattering body on the basis of the images of the scattering body picked up at the plurality of different polarization angles.

Image pickup device

A biometric information registration device includes: a memory; and a processor coupled to the memory and configured to: collect a plurality of biometric information extracted from a plurality of images of a subject, classify a posture of the subject in each of the plurality of images into one of a plurality of classes, count a number of postures that corresponds to each of the plurality of classes, and store biometric information, from among the plurality of biometric information, associated with a certain class for which the number exceeds a threshold.

Biometric information registration device and method

An image correction apparatus includes a correction amount calculating unit which calculates, in response to a position of a hand on an image, a correction amount for placing the hand to face an imaging unit included in an image acquiring unit for generating the image; and a correcting unit which corrects an estimated coordinate representing a position of a point in a real space corresponding to each pixel included in a region in which the hand is captured in the image in accordance with the correction amount, and projects each of the points after the correction on a corrected image to generate the corrected image.

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Kawasaki, Japan

Takahiro Aoki