A palm vein identification system includes a palm vein scanning device to capture a scan of a vein pattern of a candidate; the database having a groups, each group having a records, each records associated with a candidate record; the server having a processing unit to receive the scan from the communication system; create an image file associated with the scan; determine which of the groups the scan fits into; and narrow down a match associated with the scan based on which of the groups the scan fits into; the server authenticates the candidate based on the match.

According to an aspect, a detection device includes: a substrate; a plurality of photodiodes arranged on the substrate; a light source configured to emit light to an object to be detected; a detection circuit configured to detect first detection signals based on reverse bias currents of the photodiodes when the light source is off, and to detect second detection signals based on the reverse bias currents of the photodiodes when the light source is on; and a memory configured to store first imaging data based on the first detection signals when the light source is off, second imaging data based on the second detection signals when the light source is on, and difference data between the first imaging data and the second imaging data.

An information processing method includes: obtaining first image data indicating an image of at least one portion of a face of a target person from a camera connected to or built into a first computer; obtaining cerebral blood flow information indicating a state of cerebral blood flow of the target person from a detector that is connected to or built into the first computer and that detects the cerebral blood flow information; and displaying, on a display connected to or built into a second computer connected to the first computer through a remote network, an output image including a first image based on the first image data and a second image based on the cerebral blood flow information. The first image is a moving image including the at least one portion of the face, and the second image indicates changes over time in the cerebral blood flow information.

An authentication information processing method for an authentication information processing device that includes a processor and a memory includes acquiring a plurality of pair candidate and image information for each of the plurality of pair candidate. The each of the plurality of pair candidate is a candidate of a combination of related information for collation and related information for registration to be used to calculate a degree of similarity. The authentication information includes a plural pieces of the related information. The method includes narrowing down the plurality of pair candidate by comparing the acquired image information of the plurality of pair candidate of the related information for collation and the related information for registration and determining a correspondence between the related information for collation and the related information for registration used to calculate the degree of similarity, from among the narrowed down pair candidates.

An electronic device may include a display layer including light transmissive portions and non-transmissive portions. The electronic device may also include a palm biometric image sensor layer beneath the display layer and configured to sense an image of a user's palm positioned above the display layer based upon light reflected from the user's palm passing through the light transmissive portions of the display layer. The electronic device may further include a controller configured to capture image data from the user's palm in cooperation with the palm biometric image sensor layer and determine a surface distortion of the user's palm based upon the image data. The controller may also be configured to perform a biometric authentication of the user's palm based upon the image data and the surface distortion.

According to one embodiment, a biometric authentication device includes a resin substrate, an optical sensor and an illumination device. The resin substrate has flexibility. The optical sensor is disposed on the resin substrate. The illumination device is disposed on the resin substrate. The optical sensor and the illumination device are disposed on the resin substrate so as to face each other with a detection target interposed therebetween when the biometric authentication device is mounted on the detection target. The optical sensor detects light emitted from the illumination device and transmitted through the detection target.

The invention relates to a sensor system for checking a vein pattern. The sensor system comprises a first light source that is configured to emit during operation across the entire surface electromagnetic waves with wavelengths in the near infrared range, which are absorbed by hemoglobin. Furthermore, the sensor system comprises a second light source that is configured to emit during operation across the entire surface electromagnetic waves with wavelengths in the range of visible light. Furthermore, the sensor system comprises a camera with a first camera chip that is configured to record reflected electromagnetic waves with wavelengths in the near infrared range and to convert them into a corresponding infrared image, and with a second camera chip that is configured to record reflected electromagnetic waves with wavelengths in the range of visible light and to convert them into a corresponding photographic image. Finally, the sensor system comprises a first processor unit which is connected to the first camera chip and the second camera chip and which is configured to compare the photographic image with the infrared image, to determine the degree of matching between the photographic image and the infrared image and to classify the vein pattern as real if the degree of matching is less than a predetermined degree of matching, and to classify the vein pattern as not real if the degree of matching is greater than or equal to the predetermined degree of matching.

The invention relates to a sensor system for checking a vein pattern. The sensor system comprises a first light source that is configured to emit during operation across the entire surface electromagnetic waves with wavelengths in the near infrared range, which are absorbed by hemoglobin. Furthermore, the sensor system comprises a second light source that is configured to emit during operation across the entire surface electromagnetic waves with wavelengths in the range of visible light. Furthermore, the sensor system comprises a camera with a first camera chip that is configured to record reflected electromagnetic waves with wavelengths in the near infrared range and to convert them into a corresponding infrared image, and with a second camera chip that is configured to record reflected electromagnetic waves with wavelengths in the range of visible light and to convert them into a corresponding photographic image. Finally, the sensor system comprises a first processor unit which is connected to the first camera chip and the second camera chip and which is configured to compare the photographic image with the infrared image, to determine the degree of matching between the photographic image and the infrared image and to classify the vein pattern as real if the degree of matching is less than a predetermined degree of matching, and to classify the vein pattern as not real if the degree of matching is greater than or equal to the predetermined degree of matching.

The present disclosure relates to an image information generation method, a pulse wave measurement system and an electronic device. The method comprises: with respect to a target part, acquiring a first infrared image sequence, each infrared image in the first infrared image sequence including at least a vein pattern; by registering the vein pattern in each infrared image in the first infrared image sequence, correcting each infrared image in the first infrared image sequence, thereby obtaining the corrected first infrared image sequence; removing at least the vein regions from respective infrared images in the corrected first infrared image sequence, to obtain image information of remaining regions as image information for pulse wave measurement.

The present disclosure provides a method and device to process identity information based on a fundus image. An identity information comparison method includes: recognizing a fundus image by using a neural network to obtain a multi-dimensional feature vector representing the identity of a user; comparing the obtained multi-dimensional feature vector with each multi-dimensional feature vector stored in a database; and determining, according to a comparison result, whether there is a matching between the currently obtained multi-dimensional feature vector and a multi-dimensional feature vector pre-stored in the database.