Patents by Inventor Akinori EBIHARA

Akinori EBIHARA 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).

  • Publication number: 20220245916
    Abstract: A determination device includes an acquisition unit that sequentially acquires a plurality of elements included in series data related to a classification target, a score calculation unit that calculates an integrated score for binary classification of the classification target in each time the acquisition unit acquires the elements, a class determination unit that determines a determination result of the binary classification as one of a first class, a second class, and class indetermination, on the basis of comparison between the integrated score and the upper limit threshold value and the lower limit threshold value of the integrated score in each time the acquisition unit acquires the elements, and a remaining time estimation unit that calculates an index value of a remaining time required for the class determination unit to determine a final determination result of the binary classification as one of two classes.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 4, 2022
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Publication number: 20220245473
    Abstract: A determination device includes an acquisition unit that sequentially acquires a plurality of elements included in series data related to a classification target, a score calculation unit that calculates an integrated score for binary classification of the classification target in each time the acquisition unit acquires the elements, a class determination unit that determines a determination result of the binary classification as a first class, a second class, or class indetermination, on the basis of comparison between the integrated score and the upper limit threshold value and the lower limit threshold value of the integrated score in each time the acquisition unit acquires the elements, and a class classification learning unit that performs learning of the integrated score such that the integrated score has a value between the upper limit threshold value and the lower limit threshold value for series data in which the class indetermination is shown.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 4, 2022
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Publication number: 20220245934
    Abstract: A determination device includes an acquisition unit that sequentially acquires a plurality of elements included in series data related to a classification target, a score calculation unit that calculates an integrated score for binary classification of the classification target in each time the acquisition unit acquires the elements, a class determination unit that determines a determination result of the binary classification as a first class in a case where the integrated score is equal to or more than the upper limit threshold value, determines the determination result as a second class in a case where the integrated score is equal to or less than the lower limit threshold value, and determines the determination result as class indetermination in a case where the integrated score is less than the upper limit threshold value and more than the lower limit threshold value, on the basis of comparison between the integrated score and the upper limit threshold value and the lower limit threshold value in each ti
    Type: Application
    Filed: May 11, 2020
    Publication date: August 4, 2022
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Publication number: 20220245519
    Abstract: A learning apparatus includes: an identification unit that identifies a class of input data by using a learnable learning model; and an update unit that updates the learning model, by using an objective function based on relevance between a first index value for evaluating accuracy of a result of identification of the class of the input data and a second index value for evaluating time required to identify the class of the input data.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 4, 2022
    Applicant: NEC Corporation
    Inventors: Taiki Miyagawa, Akinori Ebihara
  • Publication number: 20220237951
    Abstract: A spoofing detection apparatus comprises obtaining, from an image capture apparatus, a first image frame that includes the face of a subject person obtained when a light-emitting apparatus is emitting light and a second image frame that includes the face of the subject person obtained when the light-emitting apparatus is turned off, extracting, from the first image frame, information specifying a face portion of the subject person, and extract, from the second image frame, information specifying a face portion of the subject person, extracting a portion that includes a bright point formed by reflection in an iris region of an eye of the subject person, from the first image frame, extracts a portion corresponding to the portion that includes the bright point, from the second image frame, and calculates a feature that is independent of the position of the bright point, and determining authenticity of subject person based on the feature.
    Type: Application
    Filed: November 1, 2021
    Publication date: July 28, 2022
    Applicant: NEC Corporation
    Inventor: Akinori Ebihara
  • Publication number: 20220147778
    Abstract: Provided is an information processing device including: an acquisition unit that sequentially acquires a plurality of elements included in sequential data; a first calculation unit that calculates, for each of the plurality of elements, indicators each indicating which of a plurality of classes is appropriate for corresponding element to belong to, in consideration of two or more elements among the plurality of elements; a second calculation unit that calculates, by integrating the indicators of the plurality of elements, an integrated indicator indicating which of the plurality of classes is appropriate for the sequential data to belong to; and a classification unit that classifies the sequential data into one of the plurality of classes based on the integrated indicator.
    Type: Application
    Filed: March 26, 2019
    Publication date: May 12, 2022
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Publication number: 20220092323
    Abstract: A spoofing detection apparatus 300 includes a face image obtaining unit 301 that obtains a first image frame that includes the face of a subject person obtained with a light-emitting apparatus 320 turned on and a second image frame that includes the face of the subject person obtained with a light-emitting apparatus 320 turned off, a face information extraction unit 302 that extracts first face information, and extracts second face information, a feature value calculation unit 303 that obtains a luminance value of the face portion in the first image frame, obtains a luminance value of the face portion in the second image frame, and calculates, based on these values, a feature value that reflects a three-dimensional shape, and that is independent of colors of a face surface, and a spoofing determination unit 304 that determines authenticity of subject person based on the feature value.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 24, 2022
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Patent number: 11222221
    Abstract: A spoofing detection apparatus 300 includes a face image obtaining unit 301 that obtains a first image frame that includes the face of a subject person obtained with a light-emitting apparatus 320 turned on and a second image frame that includes the face of the subject person obtained with a light-emitting apparatus 320 turned off, a face information extraction unit 302 that extracts first face information, and extracts second face information, a feature value calculation unit 303 that obtains a luminance value of the face portion in the first image frame, obtains a luminance value of the face portion in the second image frame, and calculates, based on these values, a feature value that reflects a three-dimensional shape, and that is independent of colors of a face surface, and a spoofing determination unit 304 that determines authenticity of subject person based on the feature value.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 11, 2022
    Assignee: NEC CORPORATION
    Inventor: Akinori Ebihara
  • Patent number: 11200436
    Abstract: A spoofing detection apparatus comprises obtaining, from an image capture apparatus, a first image frame that includes the face of a subject person obtained when a light-emitting apparatus is emitting light and a second image frame that includes the face of the subject person obtained when the light-emitting apparatus is turned off, extracting, from the first image frame, information specifying a face portion of the subject person, and extract, from the second image frame, information specifying a face portion of the subject person, extracting a portion that includes a bright point formed by reflection in an iris region of an eye of the subject person, from the first image frame, extracts a portion corresponding to the portion that includes the bright point, from the second image frame, and calculates a feature that is independent of the position of the bright point, and determining authenticity of subject person based on the feature.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 14, 2021
    Assignee: NEC CORPORATION
    Inventor: Akinori Ebihara
  • Publication number: 20210034893
    Abstract: A spoofing detection apparatus comprises obtaining, from an image capture apparatus, a first image frame that includes the face of a subject person obtained when a light-emitting apparatus is emitting light and a second image frame that includes the face of the subject person obtained when the light-emitting apparatus is turned off, extracting, from the first image frame, information specifying a face portion of the subject person, and extract, from the second image frame, information specifying a face portion of the subject person, extracting a portion that includes a bright point formed by reflection in an iris region of an eye of the subject person, from the first image frame, extracts a portion corresponding to the portion that includes the bright point, from the second image frame, and calculates a feature that is independent of the position of the bright point, and determining authenticity of subject person based on the feature.
    Type: Application
    Filed: February 22, 2018
    Publication date: February 4, 2021
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Publication number: 20210034894
    Abstract: A spoofing detection apparatus 300 includes a face image obtaining unit 301 that obtains a first image frame that includes the face of a subject person obtained with a light-emitting apparatus 320 turned on and a second image frame that includes the face of the subject person obtained with a light-emitting apparatus 320 turned off, a face information extraction unit 302 that extracts first face information, and extracts second face information, a feature value calculation unit 303 that obtains a luminance value of the face portion in the first image frame, obtains a luminance value of the face portion in the second image frame, and calculates, based on these values, a feature value that reflects a three-dimensional shape, and that is independent of colors of a face surface, and a spoofing determination unit 304 that determines authenticity of subject person based on the feature value.
    Type: Application
    Filed: February 22, 2018
    Publication date: February 4, 2021
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA
  • Publication number: 20200257888
    Abstract: A three-dimensional facial shape estimating device (300) includes a face image acquiring unit (301) configured to acquire a plurality of image frames that capture a subject's face; a face information acquiring unit (302) having, preset therein, a predetermined number of facial feature points, the face information acquiring unit (302) being configured to acquire, for each of the plurality of image frames, face information that indicates a position of each of the predetermined number of facial feature points of the subject's face within the image frame; and a three-dimensional shape estimating unit (303) configured to perform mapping of each of the predetermined number of facial feature points of the subject's face between the plurality of image frames based on the face information of each of the plurality of image frames and to estimate the three-dimensional shape of the subject's face based on a result from the mapping.
    Type: Application
    Filed: October 18, 2018
    Publication date: August 13, 2020
    Applicant: NEC Corporation
    Inventor: Akinori EBIHARA