Fujitsu Corporation

Fujitsu Frontech Limited

Mitsuaki Fukuda

Takahiro Aoki

Soichi Hama

Toshio Endoh

Masaki Watanabe

Atsushi Miki

Kiyoshi Chinzei

Shuji Kimura

Satoshi Fukui

Takayuki Sugiura

Naoyuki Fujimoto

Mitsuhiro Gotoh

Mieko Nakano

Shigeru Sasaki

Yuka Jo

Chikako Matsumoto

Takushi Fujita

Hitoshi Matsumoto

Masaaki Oota

Yuichi Nagai

Waku Ooe

Shuro Shindo

Shinichi Eguchi

Takumi Kishino

Hideo Kamata

Makoto Goto

Hironori Yokoi

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 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

A biometric authentication device performing an authentication based on a similarity between a biometric image that is an object of comparing and an enrolled biometric image, includes: a storage configured to store a plurality of model images generated by changing a bending angle of a joint of a biometric model and correction information of each of the plurality of model images; a biometric sensor configured to capture a biometric image that is an object of comparing; and a processor configured to execute a process, the process including: determining similarities between the biometric image captured by the biometric sensor and the plurality of model images; selecting a model image based on the similarities; reading correction information corresponding to the model image that is selected, from the storage; and correcting one of the biometric image captured by the biometric sensor or the enrolled biometric image based on the correction information.

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

A vein authentication device converts pixel values of an image, which captures an authentication site including veins, into frequency components. Moreover, the vein authentication device performs filtering of the frequency components, which are obtained by conversion of the pixel values, using a filter stored in a filter storing unit for reducing frequency components, from among low-frequency components having a lower spatial frequency than the spatial frequency of the veins and high-frequency components having a higher spatial frequency than the spatial frequency of the veins, corresponding to surface reflection of an illumination used for the authentication site. Furthermore, the vein authentication device converts the frequency components, which are subjected to filtering, back into an image. Moreover, the vein authentication device extracts vein data representing a vascular pattern of veins from the image obtained by reverse conversion. Furthermore, the vein authentication device performs vein authentication using the vein data that is extracted.

Vein authentication method, image processing method, and vein authentication device

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.

Image correction apparatus and image correction method

A biometric authentication device includes a photographing unit configured to photograph a biological body and acquire biological body information; an authentication unit configured to match registered biological body information that is registered in advance with the biological body information and perform authentication; a posture determination unit configured to determine steadiness of a posture of the biological body based on history of posture information relevant to the posture of the biological body when photographed; and an update determination unit configured to determine to update the registered biological body information when the posture determination unit determines that the posture of the biological body is steady.

Biometric authentication device, biometric authentication system, and biometric authentication method

An imaging device that generates a taken image of an object in an image area by taking an image of each line structuring the image area, includes: an inclination estimate unit that estimates an inclination of the object based on a portion of the taken image corresponding to a first line and a portion of the taken image corresponding to a second line; an image estimate unit that estimates an image of the object to be generated when the image is taken having an inclination estimated by the inclination estimate unit, based on the inclination; and a correction process unit that corrects the taken image based on a result of a comparison between the taken image and the image estimated by the image estimated unit.

Imaging device, imaging method, and non-transitory computer-readable medium

A biometric authentication apparatus includes a storage unit which stores first shape data representing a shape of biometric information of a registered user's hand with fingers at a first posture and second shape data representing a shape of biometric information of the hand with the fingers at a second posture; a posture specification unit which calculates an index representing a third posture of fingers of a user's hand in a biometric image; a biometric information extraction unit which generates third shape data representing a shape of biometric information of the user's hand in the biometric image; and a correction unit which obtains corrected shape data by correcting the first or the second shape data to cancel a shape difference of the biometric information due to a difference between the third posture and the first or the second posture based on the index for matching.

Biometric authentication apparatus, biometric authentication method, and computer program for biometric authentication

A biometric information processing apparatus includes an aligning unit that aligns a hand image in a first vein image that includes a vein pattern of one hand among a right hand and a left hand as seen from one side of a palm side of the hand or a back side of the hand, with a hand image in a second vein image that includes a vein pattern of the other hand among the right hand and the left hand as seen from the other side among the palm side of the hand or the back side of the hand; and a match determining unit that determines a line element, among a plurality of line elements in the first vein image, that matches any of a plurality of line elements in the second vein image.

Biometric information processing apparatus and biometric information processing method

A biometric authentication device that authenticates a user using biological features of the user, the biometric authentication device includes: an illumination unit configured to illuminate a target which represents the biological features; an image sensor configured to obtain a first captured image by capturing the target illuminated by the illumination unit, and obtain a second captured image by capturing the target not illuminated by the illumination unit; an acquisition unit configured to acquire from a storage unit a mask which has a target area approximating the shape of the target in the first and second captured images obtained by the image sensor; and a detection unit configured to detect light other than illumination light illuminated by the illumination unit based on the mask acquired by the acquisition unit and at least one of the first and second images.

Biometric authentication device, biometric authentication program, and biometric authentication method

A biometric authentication device is provided with an input section for inputting identification information relative to a user, an imaging section which captures images of a hand of the user a plurality of times; a matching section which extracts vein information from each image of the hand captured by the imaging section and collates the vein information with prepared vein data corresponding to the identification information; a judgment data generation section which obtains data for judgment indicating whether the image of the hand is obtained by capturing the images of a living body, on the basis of the image of the hand; and a judgment section which authenticates the user when the result of the matching by the matching section relative to each image of the hand indicates normality and the data for judgment indicates that the image of the hand is obtained by imaging the living body, but which otherwise does not authentication the user.

Biometric authentication device and biometric authentication method

A biometric identification device acquires enrollment data in such a manner as to improve usability while maintaining identification accuracy. The noncontact biometric identification device includes: a sensor that detects feature data including a feature of a part of a living body at a plurality of positions in a range defined in advance in a real space when the part of the living body moves in the range to acquire enrollment data; a processor that arranges a specified number of hyperspheres in a comparison range along a line defined by a locus of the living body in the real space such that the hyperspheres run over the comparison range, do not overlap one another, and have maximum radii, and then selects the feature data detected at one of the positions in the real space closest to the position corresponding to the center of one of the hyperspheres as the enrollment data.

Noncontact biometric identification device

A biometric authentication device includes, an acquisition unit configured to repeatedly image a biological part of an authenticated person while changing a relative position with respect to the biological part so as to acquire time-series biological images; a detection unit configured to detect a pixel corresponding among the biological images from the time-series biological images; an extraction unit configured to extract a pixel of which a pixel value includes a surface reflection component from the biological part, from each of the time-series biological images, on the basis of a degree of divergence of temporal variation of a pixel value of the detected pixel in the time-series biological images from an estimation result of temporal variation; a generation unit configured to correct the pixel value of the extracted pixel on the basis of a pixel value; and an authentication unit configured to perform personal authentication of the authenticated person.

Biometric authentication device and method

An apparatus for authenticating a user includes a detector for determining a state or a position of a bodily part placed by the user for biometric authentication, a unit capable of obtaining biometric data from a different portion of the bodily part, a plurality of biometric authentication engines capable of authenticating the user by using one of a plurality of authentication algorithms by comparing the biometric data with reference data, respectively, and a controller for selecting one of the different portions of the bodily part so as to select associated biometric data, and determining one of the biometric authentication engines for authenticating the user on the basis of the state or the position of the bodily part placed.

Authentication apparatus

A biometric-information processing device includes an image acquisition unit configured to acquire an image of a biometric object using light reflected from the biometric object. The biometric-information processing device further includes an extracting unit configured to extract a frequency component having a frequency higher than a predetermined spatial frequency at the image acquired by the image acquisition unit.

Biometric-information processing device, method of processing biometric information, and computer-readable recording medium storing biometric-information processing program

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Kawasaki, Japan

Mitsuaki Fukuda