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1.发明申请公开(公告)号：US20200105016A1
公开(公告)日：2020-04-02
申请号：US16580511
申请日：2019-09-24
发明人： Yuya YAMADA , Takashi KATO , Hironobu HODA
摘要： 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.
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公开(公告)号：US20200305712A1
公开(公告)日：2020-10-01
申请号：US16787332
申请日：2020-02-11
发明人： Shin-ichi KOJIMA , Shin OSUGA , Takashi KATO , Yuya YAMADA
摘要： A line-of-sight measurement device includes: an imaging unit that images a face of a subject; a light illumination unit that illuminates light to an eye of the subject; a camera coordinate system eyeball center coordinate calculation unit that estimates coordinates of an eyeball center, from a face image imaged by the imaging unit; a pupil center calculation unit that estimates coordinates of an apparent pupil center, from a pupil center position on the face image; an eyeball position orientation estimation unit that calculates an optical axis vector toward the pupil center from the eyeball center on the basis of the coordinates of the eyeball center and the apparent pupil center; a corneal reflection image calculation unit that obtains coordinates of a corneal reflection image on the basis of the coordinates of the eyeball center, the optical axis vector, and a predetermined eyeball model; and an image coordinate calculation unit that estimates image coordinates of a corneal reflection image on the face image, from the coordinates of the corneal reflection image.
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公开(公告)号：US20210312648A1
公开(公告)日：2021-10-07
申请号：US17201487
申请日：2021-03-15
发明人： Shin-ichi KOJIMA , Yuya YAMADA , Shin OSUGA , Koki UEDA , Yuta KAWAI , Takashi KATO , Yoshiyuki YAMADA
摘要： A face image processing device, includes: an image coordinate system coordinate value derivation unit detecting an x-coordinate value and a y-coordinate value in an image coordinate system at a feature point of an organ of a face of a person in an image, and estimating a z-coordinate value, so as to derive three-dimensional coordinate values in the image coordinate system; a camera coordinate system coordinate value derivation unit deriving three-dimensional coordinate values in a camera coordinate system from the three-dimensional coordinate values in the image coordinate system derived by the image coordinate system coordinate value derivation unit; and a parameter derivation unit applying the three-dimensional coordinate values in the camera coordinate system derived by the camera coordinate system coordinate value derivation unit to a predetermined three-dimensional face shape model to derive a model parameter of the three-dimensional face shape model in the camera coordinate system.
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公开(公告)号：US20200034603A1
公开(公告)日：2020-01-30
申请号：US16496123
申请日：2017-08-29
发明人： Yuya YAMADA
摘要： A facial recognition device includes a determination section for determining presence of an accessory worn on a face from a captured image capturing a human face, an acquisition section for acquiring height information indicative of a height of the accessory from the surface of the face in case the determination section determines presence of the accessory on the face, a production section for producing a three-dimensional face model based on the height information and a fitting section for fitting the face included in the captured image, with using the three-dimensional face model.
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5.发明申请公开(公告)号：US20200104590A1
公开(公告)日：2020-04-02
申请号：US16578735
申请日：2019-09-23
发明人： Shin OSUGA , Takashi KATO , Yuya YAMADA , Yuta KAWAI
摘要： An eyeball information detection device includes: an acquisition unit configured to acquire a captured image obtained by imaging a region in which there is a probability that a face of an occupant is present in a vehicle by an imaging device provided in proximity to an illumination device that emits light to the region; and a detection unit configured to output eyeball information that corresponds to the captured image by receiving the captured image acquired by the acquisition unit as an input based on a learned model generated by learning a learning image including information similar to the captured image acquired by the acquisition unit and a correct value of the eyeball information on an eyeball of the occupant appearing in the learning image, by machine learning.
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