Patents by Inventor Hironobu HODA

Hironobu HODA 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).

  • Eyeball information estimation device, eyeball information estimation method, and eyeball information estimation program
    Patent number: 10706585
    Abstract: An eyeball information estimation device includes: an acquisition unit acquiring an image including a pupil of a subject and a Purkinje image of the subject; a detection unit detecting a center position of the pupil and a position of the Purkinje image; a selection unit selecting which of first and second sight line angle calculation processings of calculating a sight line angle of the eye of the subject is to be executed; and a processing unit estimating an eyeball center position of the subject based on a three-dimensional face model and updating an eyeball center position of a storage unit, at least on a condition that a pupil reliability is higher than a first pupil threshold value, and a Purkinje reliability is higher than a first Purkinje threshold value, when the first sight line angle calculation processing is selected.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: July 7, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yuya Yamada, Takashi Kato, Hironobu Hoda
  • EYEBALL INFORMATION ESTIMATION DEVICE, EYEBALL INFORMATION ESTIMATION METHOD, AND EYEBALL INFORMATION ESTIMATION PROGRAM
    Publication number: 20200105016
    Abstract: An eyeball information estimation device includes: an acquisition unit acquiring an image including a pupil of a subject and a Purkinje image of the subject; a detection unit detecting a center position of the pupil and a position of the Purkinje image; a selection unit selecting which of first and second sight line angle calculation processings of calculating a sight line angle of the eye of the subject is to be executed; and a processing unit estimating an eyeball center position of the subject based on a three-dimensional face model and updating an eyeball center position of a storage unit, at least on a condition that a pupil reliability is higher than a first pupil threshold value, and a Purkinje reliability is higher than a first Purkinje threshold value, when the first sight line angle calculation processing is selected.
    Type: Application
    Filed: September 24, 2019
    Publication date: April 2, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yuya YAMADA, Takashi KATO, Hironobu HODA