Patents by Inventor Akio Nagasaka
Akio Nagasaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7266223Abstract: The invention aims at providing personal identification in environments where non-contact is required, with high accuracy even though using a finger vein pattern images unclear and susceptible to positional deviations, wherein it has: a means for acquiring finger vein patterns without contact; a means for carrying out rotational correction using the outline of a finger as a method of taking out a vein pattern contained in the acquired image; a means for normalizing the position of the finger image with reference to the fingertip; a means for acquiring an overall vein pattern statistically by repetitively tracking regions of dark luminance intensities for a desired length from a desired position in the image; a matching means for comparing regions where vein patterns manifest vivid features; and a means for independent matching of subregions and evaluating positional deviations where matching is recognized.Type: GrantFiled: August 31, 2005Date of Patent: September 4, 2007Assignee: Hitachi, Ltd.Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
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Patent number: 7254311Abstract: By sequentially inputting images for each frame, sequentially extracting features from the inputted frame images, converting the features sequentially extracted into a feature series corresponding to the inputted frame image series, compressing the feature series in the direction of the time axis, storing the compressed feature series in the storage, sequentially extracting features separately from the images to be retrieved for each inputted frame, sequentially comparing the features of the images to be retrieved for each frame with the stored compressed feature series, storing the progress state of this comparison, updating the stored progress state of the comparison on the basis of a comparison result with the frame features of the succeeding images to be retrieved, and retrieving image scenes matching with the updated progress state from the images to be retrieved on the basis of the comparison result between the updated progress state and the features of the images to be retrieved for each frame, the preType: GrantFiled: September 20, 2001Date of Patent: August 7, 2007Assignee: Hitachi, Ltd.Inventors: Akio Nagasaka, Takafumi Miyatake
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Publication number: 20070177767Abstract: Provided is a small-sized, flat, vein authentication device of high authentication accuracy by photographing a living body several times and thus obtaining as registration data plural images that are picked up at different positions. A biometric information processing device of this invention comprising an image pickup device, which picks up a vein image, an image computing unit, which processes the vein image picked up by the image pickup device, an interface on which a part of a living body to be picked up is placed, and a light source, which emits infrared light. The biometric information processing device is further comprised of a sensor unit, which detects the presence or absence of a subject picked up by the image pickup device, a unit to obtain plural images as registration data, and a unit to select optimum registration data out of images obtained as registration data.Type: ApplicationFiled: July 26, 2006Publication date: August 2, 2007Inventors: Naoto Miura, Takafumi Miyatake, Akio Nagasaka, Harumi Kiyomizu
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Patent number: 7245745Abstract: A compact authentication device that prevents user from feeling pressure and is strong against external light, when capturing an image of a finger blood vessel pattern with transmitted light. The device includes a guidance part for determining the finger position, a light source disposed on at least one side of the guidance part to emit light to be transmitted though the finger, an image capture part for capturing the transmitted light, a shading unit for limiting an irradiation region of the light, a finger thickness measuring unit, a unit for controlling a light amount of the light source based on a result of the measurement, a unit for recording registered image patterns of the finger, a unit for collating a captured image pattern from the image capture part with the registered patterns, and a unit for controlling different processing according to the collation result.Type: GrantFiled: July 14, 2003Date of Patent: July 17, 2007Assignee: Hitachi, Ltd.Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yuichi Kashimura
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Patent number: 7203366Abstract: A method of characterizing a video includes the steps of extracting frame images from an input video, calculating a time length between each of the frame images and a next one of the frame images, assigning index information determined by the calculated time length to each of the frame images, stringing together the index information assigned to the frame images, and characterizing the input video by the strung-together index information. The index information is a character code, and the strung-together index information is a character code string. The frame images include head frame images located at scene changes of the input video. The input video is being broadcasted or is included in a data base.Type: GrantFiled: May 27, 2004Date of Patent: April 10, 2007Assignee: Hitachi, Ltd.Inventors: Takafumi Miyatake, Shigeo Sumino, Katsumi Taniguchi, Akio Nagasaka, Mitsuru Ikezawa, Hirotada Ueda
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Publication number: 20070058841Abstract: Personal identification is implemented by picking up finger vein patterns when the user naturally grasps a grip such as doorknob. The device for personal identification has a light source provided to irradiate light on the finger from the palm side, a camera to pick up the vessel image of the finger, and a processor to extract features of the vessel from the image and compare the obtained features with the registered ones. The camera picks up the light that exits from the backside of the finger after penetrating it.Type: ApplicationFiled: July 26, 2006Publication date: March 15, 2007Inventors: Naoto Miura, Takafumi Miyatake, Akio Nagasaka, Harumi Kiyomizu
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Patent number: 7181127Abstract: By sequentially inputting images for each frame, sequentially extracting features from the inputted frame images, converting the features sequentially extracted into a feature series corresponding to the inputted frame image series, compressing the feature series in the direction of the time axis, storing the compressed feature series in the storage, sequentially extracting features separately from the images to be retrieved for each inputted frame, sequentially comparing the features of the images to be retrieved for each frame with the stored compressed feature series, storing the progress state of this comparison, updating the stored progress state of the comparison on the basis of a comparison result with the frame features of the succeeding images to be retrieved, and retrieving image scenes matching with the updated progress state from the images to be retrieved on the basis of the comparison result between the updated progress state and the features of the images to be retrieved for each frame, the preType: GrantFiled: September 20, 2001Date of Patent: February 20, 2007Assignee: Hitachi, Ltd.Inventors: Akio Nagasaka, Takafumi Miyatake
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Patent number: 7181126Abstract: By sequentially inputting images for each frame, sequentially extracting features from the inputted frame images, converting the features sequentially extracted into a feature series corresponding to the inputted frame image series, compressing the feature series in the direction of the time axis, storing the compressed feature series in the storage, sequentially extracting features separately from the images to be retrieved for each inputted frame, sequentially comparing the features of the images to be retrieved for each frame with the stored compressed feature series, storing the progress state of this comparison, updating the stored progress state of the comparison on the basis of a comparison result with the frame features of the succeeding images to be retrieved, and retrieving image scenes matching with the updated progress state from the images to be retrieved on the basis of the comparison result between the updated progress state and the features of the images to be retrieved for each frame, the preType: GrantFiled: September 20, 2001Date of Patent: February 20, 2007Assignee: Hiatchi, Ltd.Inventors: Akio Nagasaka, Takafumi Miyatake
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Publication number: 20070036399Abstract: In a personal identification device using blood vessel patterns, means capable of downsizing the device is especially provided. The personal identification device comprises an infrared ray source and a light receiving element row containing a plurality of light receiving elements. In personal identification, a finger is passed over the light receiving element row. An image containing a two-dimensional blood vessel pattern of the finger is created from an output of the light receiving element row and displacement information of the passing finger. The blood vessel pattern thus obtained is checked for a match with a previously registered pattern to perform the personal identification. The device can be downsized and can be easily mounted in a place having a limited mounting space, such as in cars and cell phones.Type: ApplicationFiled: August 13, 2003Publication date: February 15, 2007Applicant: Hitachi, Ltd.Inventors: Takafumi Matsumura, Ichiro Osaka, Yuichi Kashimura, Takafumi Miyatake, Akio Nagasaka, Naoto Miura
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Patent number: 7141889Abstract: Highly convenient automobile engine starting uses an individual authentication device which utilizes biological information and provides a security function required when starting the engine, while protecting a sensor for receiving the biological information. An engine starting system can comprise an ignition switch for controlling a state of an automobile; a key for changing a state of the ignition switch; a registration key for registering biological information; a switch for starting an engine; a sensor for inputting biological information; a device for storing biological information; a collating unit for collating the inputted biological information with the stored biological information; and a lid for covering the sensor of an authentication device.Type: GrantFiled: November 13, 2002Date of Patent: November 28, 2006Assignee: Hitachi, Ltd.Inventors: Jiro Takezaki, Naoto Miura, Takafumi Miyatake, Akio Nagasaka, Satoru Kuragaki
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Publication number: 20060098848Abstract: An image pickup scheme capable of always providing an optimum quality of a blood vessel pattern, in image pickup of a blood vessel pattern of a finger using transmitted light, without being affected by a difference, if any, in an external environment. A personal identification apparatus includes light sources for irradiating light to be transmitted by a finger, an image pickup unit for picking up an image using light transmitted by the finger, finger detection unit for detecting that the finger exists in a predetermined position, finger region extraction unit for extracting a region occupied by the finger from an image picked up by the image pickup unit, and gain changing unit for changing an amplification factor of image pickup elements in the image pickup unit on the basis of a picture quality of a specific region within the extracted region.Type: ApplicationFiled: November 2, 2005Publication date: May 11, 2006Inventors: Akio Nagasaka, Naoto Miura, Takafumi Miyatake
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Publication number: 20060068693Abstract: The invention detects the state where a vehicle cabin is or the individual occupants are short of oxygen and eliminates this shortage of oxygen. Further, the invention prevents the occupant from developing high-altitude sickness when a vehicle runs in highlands. Still further, the invention constructs a system tough to the failure of sensors. There is provided an apparatus in which a system is constructed in such a way as to provide a vehicle with a function of measuring oxygen saturation in blood, a function of measuring oxygen concentration or carbon dioxide concentration, and a function of measuring altitude and can condition air in a vehicle cabin by use of a remaining function even in the event of a failure of the respective functions. With this, it is possible to eliminate a shortage of oxygen in individual occupants according to their states and hence to prevent the occupants from developing high-altitude sickness when the vehicle runs in highlands and hence to secure the safe running of the vehicle.Type: ApplicationFiled: February 3, 2005Publication date: March 30, 2006Inventors: Miyuki Kono, Yuichi Kashimura, Takafumi Matsumura, Takafumi Miyatake, Akio Nagasaka, Hiroshi Masuzawa, Naoto Miura
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Patent number: 6993160Abstract: The invention aims at providing personal identification in environments where non-contact is required, with high accuracy even though using a finger vein pattern images unclear and susceptible to positional deviations, wherein it has: a means for acquiring finger vein patterns without contact; a means for carrying out rotational correction using the outline of a finger as a method of taking out a vein pattern contained in the acquired image; a means for normalizing the position of the finger image with reference to the fingertip; a means for acquiring an overall vein pattern statistically by repetitively tracking regions of dark luminance intensities for a desired length from a desired position in the image; a matching means for comparing regions where vein patterns manifest vivid features; and a means for independent matching of subregions and evaluating positional deviations where matching is recognized.Type: GrantFiled: September 5, 2001Date of Patent: January 31, 2006Assignee: Hitachi, Ltd.Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
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Publication number: 20060008249Abstract: A video picture access system and computer implemented program in which a command is inputted, a list of time-serial representative images of scenes included in a video picture is displayed, and the list is scrolled by displaying a new representative image instead of the representative image of the representative image already displayed earlier when a total number of the time-serial representative images exceed a maximum number of representative images which can be displayed on a display screen. The representative image which is newly added for display is a representative image of a scene distanced for a given time in conformance to the command which is inputted.Type: ApplicationFiled: September 9, 2005Publication date: January 12, 2006Inventors: Akio Nagasaka, Takafumi Miyatake
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Publication number: 20060002592Abstract: The invention aims at providing personal identification in environments where non-contact is required, with high accuracy even though using a finger vein pattern images unclear and susceptible to positional deviations, wherein it has: a means for acquiring finger vein patterns without contact; a means for carrying out rotational correction using the outline of a finger as a method of taking out a vein pattern contained in the acquired image; a means for normalizing the position of the finger image with reference to the fingertip; a means for acquiring an overall vein pattern statistically by repetitively tracking regions of dark luminance intensities for a desired length from a desired position in the image; a matching means for comparing regions where vein patterns manifest vivid features; and a means for independent matching of subregions and evaluating positional deviations where matching is recognized.Type: ApplicationFiled: August 31, 2005Publication date: January 5, 2006Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
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Publication number: 20050281442Abstract: The invention aims at providing personal identification in environments where non-contact is required, with high accuracy even though using a finger vein pattern images unclear and susceptible to positional deviations, wherein it has: a means for acquiring finger vein patterns without contact; a means for carrying out rotational correction using the outline of a finger as a method of taking out a vein pattern contained in the acquired image; a means for normalizing the position of the finger image with reference to the fingertip; a means for acquiring an overall vein pattern statistically by repetitively tracking regions of dark luminance intensities for a desired length from a desired position in the image; a matching means for comparing regions where vein patterns manifest vivid features; and a means for independent matching of subregions and evaluating positional deviations where matching is recognized.Type: ApplicationFiled: August 23, 2005Publication date: December 22, 2005Inventors: Naoto Miura, Akio Nagasaka, Takafumi Miyatake
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Patent number: 6970234Abstract: An identification apparatus that keeps the conditions for imaging uniform among successive identifications and requires a user to perform only a series of simple maneuvers. An identification apparatus comprising a guide member, a light source, and an imaging unit. The guide member includes a pattern or a structure that inspires a user to position his/her finger thereon or to approach his/her specific finger region thereto. A contact member such as a button switch is preferably located at a position in the guide member at which a fingertip is to be positioned. An optical opening is formed at a position coincident with a position at which a portion of a finger to be imaged for identification should be placed. The light source radiates near-infrared light through the portion of the finger to be imaged. The imaging means acquires an image of the finger, and the apparatus compares the image to previously registered images.Type: GrantFiled: May 13, 2002Date of Patent: November 29, 2005Assignee: Hitachi, Ltd.Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yoshiaki Amano, Yoshimi Kasai, Shinichiro Umemura, Miyuki Kono
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Publication number: 20050254690Abstract: A compact authentication device that prevents user from feeling pressure and is strong against external light, when capturing an image of a finger blood vessel pattern with transmitted light. The device includes a guidance part for determining the finger position, a light source disposed on at least one side of the guidance part to emit light to be transmitted though the finger, an image capture part for capturing the transmitted light, a shading unit for limiting an irradiation region of the light, a finger thickness measuring unit, a unit for controlling a light amount of the light source based on a result of the measurement, a unit for recording registered image patterns of the finger, a unit for collating a captured image pattern from the image capture part with the registered patterns, and a unit for controlling different processing according to the collation result.Type: ApplicationFiled: June 30, 2005Publication date: November 17, 2005Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yuichi Kashimura
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Publication number: 20050254695Abstract: An identification apparatus that keeps the conditions for imaging uniform among successive identifications and requires a user to perform only a series of simple maneuvers. An identification apparatus comprising a guide member, a light source, and an imaging unit. The guide member includes a pattern or a structure that inspires a user to position his/her finger thereon or to approach his/her specific finger region thereto. A contact member such as a button switch is preferably located at a position in the guide member at which a fingertip is to be positioned. An optical opening is formed at a position coincident with a position at which a portion of a finger to be imaged for identification should be placed. The light source radiates near-infrared light through the portion of the finger to be imaged. The imaging means acquires an image of the finger, and the apparatus compares the image to previously registered images.Type: ApplicationFiled: July 25, 2005Publication date: November 17, 2005Inventors: Akio Nagasaka, Takafumi Miyatake, Naoto Miura, Yoshiaki Amano, Yoshimi Kasai, Shinichiro Umemura, Miyuki Kono
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Patent number: 6954583Abstract: Video picture access method and system capable of index manipulation for accessing a video picture without disturbing a user viewing the picture. Visual effect for allowing the user to check instantaneously whether the index manipulation conforms to user's intention. List display unit displays in superposition on a video picture a list containing reduced-size representative images for scenes included in the picture. Exhibition unit makes into appearance a display field of the list while extending stepwise the list over a time. User interface enables selection of a representative image of a scene to be next displayed from the list. Video reproducing unit provides such visual effect that reproduction of a video picture for the selected scene is started from the position of the selected image and a size thereof and makes transition gradually to a full screen picture.Type: GrantFiled: March 5, 2001Date of Patent: October 11, 2005Assignee: Hitachi Ltd.Inventors: Akio Nagasaka, Takafumi Miyatake