Patent application number | Description | Published |
20080291576 | CONTROLLER, STORAGE APPARATUS AND CONTROL METHOD - A controller controls movement of a head mounted in a storage apparatus based on a signal output from an acceleration sensor. A head movement control section which controls movement of the head to a target position on a storage medium and a head unload control section unloads the head to an unload position based on (1) the time at which a drop or initial impact is first detected based on a signal output from the acceleration sensor and (2) threshold information, which includes a first threshold representing a standard strength of the signal output from the acceleration sensor at the time of drop and a second threshold representing a standard strength of the signal output from the acceleration sensor at the time of initially receiving impact. | 11-27-2008 |
20080302951 | REFLECTED LIGHT DETECTING APPARATUS, REFLECTION CHARACTERISTIC DETERMINING APPARATUS, AND OBJECT DETECTING APPARATUS - A photographing section photographs a photographing object, a light-projector projects a light spot parallel to or approximately parallel to an optical axis of the photographing section onto the photographing object, and a detector detects, from an image of the photographing object photographed by the photographing section, a light spot from the light-projector reflected by the photographing object on the basis of an arrangement position of the light-projector relative to the photographing section. A reflected light spot of light projected onto a detection object can be detected with certainty, and erroneous detection of the reflected light spot, in particular, erroneous detection due to disturbance light, can be prevented at a low cost, without an increase in size of the apparatus. | 12-11-2008 |
20080306392 | BLOOD VESSEL IMAGING APPARATUS - An imaging device used for a blood vessel imaging apparatus includes: a housing; an image sensor mounted in the housing; a control circuit board fixedly held in the housing and provided with the image sensor; an illumination circuit board disposed in the housing so as to be opposed to the control circuit board, and having an opening in a position opposed to the image sensor; a tubular light intercepting member disposed so as to cover the periphery of the image sensor and protrude through the opening; and an optical part attached to the tubular light intercepting member. | 12-11-2008 |
20090080103 | STORAGE DEVICE AND SEEK CONTROL METHOD - A storage device includes a storage unit, a timer unit and a bias current applying unit. The storage unit stores, in advance, a value of a waiting time until application of a bias current to the driving unit to eliminate an external force applied to an actuator after completion of positioning, and a value of a bias current to be applied to the driving unit after the elapse of the waiting time, in association with a track position. The timer unit reads the waiting time from the storage unit and counting an elapse of the waiting time. The bias current applying unit reads the bias current value from the storage unit and applying the bias current to the driving unit after the elapse of the waiting time. | 03-26-2009 |
20090087022 | STAIN DETECTION SYSTEM - An image pickup unit that does not have a movable system and is fixed at one point picks up an image. A subject region extraction unit detects a subject in the image, extracts a region of the subject, and generates a region extraction image. A region extraction image storage unit holds a plurality of recent region extraction images. Then, a stain level calculation unit compares the held region extraction images for each pixel, and increases a value of the stain level of a pixel when it is highly probable that a stain is present on the pixel, and vise versa. The subject region extraction and the stain level calculation are performed each time an image is picked up, and the value is updated. A stain determination unit outputs whether or not a stain is present and the degree that the stain is present on the basis of the value. | 04-02-2009 |
20090091531 | GUIDANCE DEVICE AND METHOD - A guidance device which performs measurement by placing an object without contact, comprising: a virtual image display unit displaying a virtual image; a sample display generation unit making the virtual image display unit display a sample virtual image based on a shape of the object at a position where the object is to be finally arranged; a status detection unit detecting a position and attitude of the object; a correction amount calculation unit calculating a difference between the position and attitude of the object and the position and attitude of the virtual image; and a guidance display generation device making the virtual image display unit display a guidance display indicating the calculated difference in the same position as the virtual image. | 04-09-2009 |
20090220141 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM - A blood vessel imaging device obtains peak height information of a differential function F′(x) from an adjustment dial. The blood vessel imaging device, based on the peak height information and peak position information of the differential function F′(x), then defines the differential function F′(x). Subsequently, the blood vessel imaging device calculates an LUT function F(x) that indicates the shape of an LUT by integrating the defined differential function F′(x). The blood vessel imaging device generates an LUT based on the LUT function F(x). The blood vessel imaging device reads out a picked-up image stored in a picked-up image memory, converts a luminance value of the picked-up image being read using the LUT, and displays the image with the converted luminance value. | 09-03-2009 |
20090222421 | PERSONAL INDENTIFICATION SYSTEM, METHOD, AND COMPUTER READABLE MEDIUM STORING PROGRAM THEREOF - A personal identification system includes a user database and a knowledge database. The user database stores personal data of a user. The knowledge database stores knowledge data relating to the personal data stored in the user database. The personal identification system generates a query on the basis of the knowledge data stored in the knowledge database, issues the generated query, and screens candidates for identification in accordance with an answer to the query. | 09-03-2009 |
20090243798 | BIOMETRIC AUTHENTICATION APPARATUS AND BIOMETRIC DATA REGISTRATION APPARATUS - In accordance with input user ID, a personal template fetcher reads biometric feature data and biometric shape data from a template storage. A verification area finder determines a verification area that matches a detection area of a verification sensor within an area of biometric features. A guide information generator combines the verification area with a contour shape reconstructed from the biometric shape data, received from the personal template fetcher, to generate a guide pattern. A guide information presenter presents the generated guide pattern to the user. A verification sensor extracts biometric feature information from an input image of biometric features and converts it into numeric data to obtain biometric feature data. A biometric feature verifier then verifies the biometric feature data obtained by the verification sensor in comparison with the biometric feature data received from the personal template fetcher in the verification area received from the verification area finder. | 10-01-2009 |
20090261947 | AUTHENTICATION APPARATUS, AUTHENTICATION METHOD, AND AUTHENTICATION PROGRAM - Disclosed is an authentication apparatus easily achieving convenience and high accuracy in authentication. The authentication apparatus has an authentication accuracy simulation section that simulates authentication accuracy and also has a registration information setting section that sets an ID and biometric information input as registration information. The authentication accuracy simulation section uses an ID and biometric information that has been input as registration information by a user at the time of registration and the registered registration information to simulate authentication accuracy with which the user is authenticated. When the authentication accuracy simulated by the authentication accuracy simulation section does not satisfy a predetermined condition, the registration information setting section rejects registration of the ID input as the registration information. | 10-22-2009 |
20100013938 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM - An image processing apparatus includes a first image acquisition section that acquires a first image of an object at illumination-off time, a second image acquisition section that acquires a second image of the object at illumination-on time, a difference image generation section that generates a difference image based on a difference between luminance of each of pixels constituting the first image and luminance of each of pixels constituting the second image, a high-luminance area extraction section that extracts an image area constituted by pixels having a luminance value which is equal to or more than a predetermined luminance value from the difference image, and a movement determination section that determines a movement amount of the object between image take timing of the first image and image take timing of the second image based on the image area. | 01-21-2010 |
20100074476 | IMAGE TAKING DEVICE, IMAGE TAKING METHOD, AND IMAGE TAKING PROGRAM - An image taking device includes: a subject detection section that determines whether a biometric portion that can be used for biometric authentication of a subject is included in the image taking range of the camera; and a controller that handles the taken image as the authentication image when receiving an authentication image acquisition instruction and performs processing, in the case where there has not issued the authentication image acquisition instruction, such that when it is determined by the subject detection section that a biometric portion is not included in the image taking range of the camera, the controller uses the taken image as the monitoring image and when it is determined by the subject detection section that a biometric portion is included in the image taking range of the camera, the controller stops image taking operation of the camera. | 03-25-2010 |
20100085151 | AUTHENTICATION APPARATUS - 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 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 algorisms 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. | 04-08-2010 |
20100085152 | AUTHENTICATION METHOD - A method of authenticating a user includes storing a reference biometric data of the user, performing initial authentication by obtaining biometric data of the user and comparing the obtained biometric data with the reference biometric data, storing the obtained biometric data upon successful initial authentication, performing second and subsequent authentication by obtaining biometric data of the user and comparing instantaneously obtained biometric data with the reference biometric data and the stored obtained biometric data, and updating the stored obtained biometric data each time the second or the subsequent authentication is successful. | 04-08-2010 |
20100245041 | PASSAGE AUTHORIZATION SYSTEM - A passage authorization system includes a plurality of gate management apparatuses that are individually provided with authentication sensors for acquiring biometric data from a presented hand and form paths, an authentication unit configured to output a result of authentication comparison performed with the biometric data acquired by each of the authentication sensors and a hand determination result of determining whether the biometric data is data of a left hand or a right hand, and a control unit configured to control opening/closing of a gate corresponding to the hand determination result on the basis of the result of authentication comparison. | 09-30-2010 |
20100322484 | Capture device for biometrics authentication and biometrics authentication device - A disclosed capture device for biometrics authentication using an image of a person's palm includes an image sensor capturing the person's palm and acquiring an image of the person's palm and a guide member supporting the person's palm when the person's palm is captured by the image sensor. Further, the guide member has a V-shaped-type groove in which a finger of the person's palm is to be inserted. | 12-23-2010 |
20110243396 | BIOMETRIC AUTHENTICATION DEVICE 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. | 10-06-2011 |
20110243460 | IMAGE MATCHING DEVICE AND IMAGE MATCHING METHOD - An image matching device includes: a mixed image generation portion generating a mixed image in an operation satisfying linearity, the mixed image being obtained by multiplying each of two or more recorded images and each of phase components of a complex plane different from each other and adding multiplied recorded images; a complex similarity image generation portion generating a complex similarity image through a similarity operation between one or more input image and the mixed image; and a similarity obtain portion obtaining similarity from a projected component of the complex similarity image toward a vector of the phase component. | 10-06-2011 |
20120082348 | BIOMETRIC AUTHENTICATION DEVICE, BIOMETRIC AUTHENTICATION METHOD, AND COMPUTER PROGRAM FOR BIOMETRIC AUTHENTICATION - A biometric authentication device includes: a biometric information acquisition unit which generates a first input biometric image representing the biometric information of a user, a storage unit which stores data relating to registered biometric information of at least one registered user, and a processing unit. The processing unit realizes a quality judgment function which judges if the first input biometric image is suitable or not for use for comparison of the biometric information represented in the first input biometric image with the registered biometric information, a selection function which selects registered biometric information which is similar to biometric information represented in the first input biometric image among registered biometric information when the first input biometric image is judged unsuitable, and a matching process function which compares the user's biometric information represented in a second input biometric image with the selected registered biometric information. | 04-05-2012 |
20120169464 | BIOMETRIC AUTHENTICATION DEVICE, BIOMETRIC AUTHENTICATION SYSTEM, AND BIOMETRIC AUTHENTICATION 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. | 07-05-2012 |
20120230551 | BIOMETRIC-INFORMATION PROCESSING DEVICE, METHOD OF PROCESSING BIOMETRIC INFORMATION, AND COMPUTER-READABLE RECORDING MEDIUM STORING BIOMETRIC-INFORMATION PROCESSING PROGRAM - 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. | 09-13-2012 |
20120250954 | BIOMETRIC INFORMATION PROCESSING DEVICE , BIOMETRIC INFORMATION PROCESSING METHOD AND COMPUTER-READABLE STORAGE MEDIUM STORING A BIOMETRIC INFORMATION PROCESSING PROGRAM - A biometric information processing device includes, a biometric sensor configured to acquire a plurality of different biometric information elements; an authentication feature extracting unit configured to extract an authentication feature for use in authentication for each of the plurality of different biometric information elements acquired by the biometric sensor; a supplemental feature extracting unit configured to extract a supplemental feature relating to the authentication feature for each of the plurality of different biometric information elements; and a combined feature extracting unit configured to extract a combined feature in which a plurality of the supplemental features extracted by the supplemental feature extracting unit are reflected. | 10-04-2012 |
20120307031 | BIOMETRIC INFORMATION PROCESS DEVICE, BIOMETRIC INFORMATION PROCESS METHOD, AND COMPUTER READABLE MEDIUM - A biometric information process device includes: a biometric sensor obtaining a plurality of biometric images of a user; a detection portion detecting a surface reflection region of the plurality of biometric images; and a storage portion storing biometric information obtained from biometric images included in the plurality of biometric images, the biometric images having a different surface reflection region from each other. | 12-06-2012 |
20120326841 | BIOMETRIC AUTHENTICATION APPARATUS AND METHOD - A biometric authentication apparatus is provided, the apparatus including: a comparator that performs authentication of the user by comparing biological information read from a user with registered biological information registered in a storage in advance; a high accuracy comparator that compares the biological information with the registered biological information with a higher accuracy instead of comparison using the comparator when the user is not authenticated by the comparator; and a comparison result storage that records a comparison result obtained by the high accuracy comparator in the storage. | 12-27-2012 |
20130011015 | BIOMETRIC AUTHENTICATON DEVICE, BIOMETRIC AUTHENTICATION PROGRAM, AND BIOMETRIC AUTHENTICATION 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. | 01-10-2013 |
20130051628 | BIOMETRIC AUTHENTICATION DEVICE AND METHOD - 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. | 02-28-2013 |
20130243264 | BIOMETRIC AUTHENTICATION DEVICE AND COMPUTER READABLE MEDIUM - A biometric authentication device includes a biometric sensor that obtains an image of a biometric authentication portion of a user without contacting, a distance sensor that obtains a distance between the biometric sensor and the biometric authentication portion, and a guidance image display unit that shows a guidance image for guiding the biometric authentication portion to a distance that is appropriate for the biometric sensor to obtain the biometric authentication portion, the guidance image changing continuously or in stages according to the distance obtained by the distance sensor. | 09-19-2013 |
20130259321 | BIOMETRIC AUTHENTICATION DEVICE AND BIOMETRIC AUTHENTICATION METHOD - A biometric authentication device includes: a sensor which generates illumination images in which an object carrying biometric information is photographed while a light source is turned on, and a non-illumination image in which the object is photographed while the light source is turned off; a difference image generating unit which generates difference images by subtracting from a luminance value of each pixel of each illumination image a luminance value of corresponding pixel of the non-illumination image; and a biometric image generating unit which determines an integration number, based on a statistical value of luminance values of a first difference image, so that the integration number increases as an influence of luminance values of pixels included in at least one region of the first difference image due to the noise superimposed on the first difference image increases, and generates the biometric image based on the integration number of the difference images. | 10-03-2013 |
20130259328 | NONCONTACT BIOMETRIC IDENTIFICATION DEVICE - 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. | 10-03-2013 |
20140133709 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM - An image processing device includes a memory; and a processor coupled to the memory and configured to: acquire, for each of different entrance positions, each of captured images generated by changing the luminance of pixels within a given distance from an entrance position indicating a location at which light is incident to a photographic subject, the pixels being in an image obtained by illuminating the photographic subject with the light from a light source and capturing the light reflected from the photographic subject, generate a composite image by adding together each of the captured images, and generate an output image by performing image restoration on the composite image by using a model having the shape of the reflected light. | 05-15-2014 |
20140198957 | BIOMETRIC INFORMATION IMAGE-CAPTURING DEVICE, BIOMETRIC AUTHENTICATION APPARATUS AND MANUFACTURING METHOD OF BIOMETRIC INFORMATION IMAGE-CAPTURING DEVICE - A biometric information image-capturing device includes an image capturing unit configured to photograph a body part including biometric information to generate a biometric image in which the biometric information is represented, at least one light source disposed in the periphery of the image capturing unit and configured to illuminate light toward a photographing range of the image capturing unit, and a light guide member disposed to be opposed to the at least one light source in the periphery of the image capturing unit and provided with a concaved portion located at a surface of the light guide member, the concaved portion being nearer to the image capturing unit side than the at least one light source. | 07-17-2014 |
20140211036 | IMAGE CAPTURING METHOD AND IMAGE CAPTURING APPARATUS - An image capturing method includes: continuously generating, using a processor, one or more OFF images in which the subject is captured with the illumination turned OFF, for a first number of times; continuously generating, using the processor, ON images in which the subject is captured with the illumination turned ON, for a second number of times; continuously generating, using the processor, one or more OFF images in which the subject is captured with the illumination turned OFF, for the first number of times; computing, using the processor, a difference image between each of the generated ON images and the OFF image corresponding to the ON image among the generated OFF images; and integrating, using the processor, the computed difference images. | 07-31-2014 |
20140267761 | IMAGING DEVICE, IMAGING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - 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. | 09-18-2014 |
20140294250 | IMAGE CORRECTION APPARATUS, IMAGE CORRECTION METHOD, AND BIOMETRIC AUTHENTICATION APPARATUS - An image correction apparatus includes a correction factor calculating unit which calculates a correction factor such that a distance between a corrected value obtained by correcting, using the correction factor, a luminance value of a first pixel on the image corresponding to a sensor element with a first filter in an image sensor included in an image capturing unit which generates the image, the first filter having a first transmittance characteristic and a luminance value of a second pixel on the image corresponding to a sensor element with a second filter in the image sensor, the second filter having a second transmittance characteristic, becomes smaller than a distance between the luminance value of the first pixel and the luminance value of the second pixel, and a correcting unit which generates a corrected image by correcting the luminance value of the first pixel using the correction factor. | 10-02-2014 |
20140376005 | IMAGING DEVICE - An imaging device includes: an imaging element that take an image of a subject; and a plurality of light sources that radiate a light to the subject, wherein optical axes of the plurality of the light sources are inclined outward with respect to an optical axis of the imaging element. | 12-25-2014 |
20140376784 | BIOMETRIC AUTHENTICATION DEVICE, BIOMETRIC AUTHENTICATION METHOD, AND COMPUTER READABLE, NON-TRANSITORY MEDIUM - A biometric authentication device includes: a memory configured to store an enrollment feature data; a biometric sensor that obtains a biometric image of a user; and a circuitry configured to: obtain a surface reflection degree of the biometric image; extract a comparison-use feature data from the biometric image; perform a comparing based on a similarity between the comparison-use feature data and the enrollment feature data; and reflect a correction coefficient and the surface reflection degree related to a region of the biometric image to the similarity. | 12-25-2014 |