公开(公告)号：US20160302662A1

公开(公告)日：2016-10-20

申请号：US15101169

申请日：2014-11-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutaka SUZUKI ,  Yoshinori MATSUI ,  Haruyoshi TOYODA ,  Munenori TAKUMI ,  Naotoshi HAKAMATA

IPC: A61B3/113 ,  A61B3/14 ,  A61B3/00

Abstract: A tablet terminal 1A is a measurement apparatus for measuring a subject's eyelid position, and includes a display section 3 that generates a vertically long light emitting region to make a reflection image form on a corneal surface of the subject's eyeball, a camera 5 that images the reflection image formed by the display section 3, and an arithmetic circuit 7 that derives reflection image information concerning a size or position of the reflection image based on image data of the reflection image obtained by the camera 5, and measures the eyelid position based on the reflection image information.

Abstract translation: 平板电脑终端1A是用于测量被检者的眼睑位置的测量装置，包括：生成垂直长的发光区域的显示部3，以在被检者的眼球的角膜表面上形成反射图像;照相机5， 由显示部3形成的反射图像，以及运算电路7，其基于由照相机5获得的反射图像的图像数据，导出与反射图像的大小或位置有关的反射图像信息，并且基于 反射图像信息。

公开(公告)号：US20160345818A1

公开(公告)日：2016-12-01

申请号：US15163921

申请日：2016-05-25

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutaka SUZUKI ,  Munenori TAKUMI ,  Naotoshi HAKAMATA ,  Haruyoshi TOYODA ,  Yoshinori MATSUI

IPC: A61B3/00 ,  A61B5/18 ,  A61B3/113

CPC classification number: A61B3/0025 ,  A61B3/10 ,  A61B3/113 ,  A61B5/1103 ,  A61B5/1128 ,  A61B5/18 ,  A61B2576/02

Abstract: An eyeblink measurement method includes a step of detecting reflected light from a part including a target person's eyelid and eye and outputting an image signal of the reflected light, using a photodetector, a step of calculating a position of a corneal reflected light produced on the eye in the part and a position of the eyelid in the part based on the image signal, a step of correcting the position of the eyelid based on the position of the corneal reflected light, and a step of calculating a feature amount regarding blinking based on a temporal change in the corrected position of the eyelid.

Abstract translation: 眼线测量方法包括：检测来自包括目标人的眼睑和眼睛的部分的反射光并使用光电检测器输出反射光的图像信号的步骤;计算眼睛上产生的角膜反射光的位置的步骤 在基于图像信号的部分中的眼睑的部分和位置中，基于角膜反射光的位置来校正眼睑的位置的步骤，以及基于角膜反射光的特征量计算关于眨眼的特征量的步骤 眼睑校正位置的时间变化。

公开(公告)号：US20210068653A1

公开(公告)日：2021-03-11

申请号：US17099993

申请日：2020-11-17

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutaka SUZUKI ,  Munenori TAKUMI ,  Naotoshi HAKAMATA ,  Haruyoshi TOYODA ,  Yoshinori MATSUI

IPC: A61B3/113 ,  A61B3/11 ,  G06K9/00 ,  G06K9/62 ,  A61B3/00 ,  A61B3/14 ,  G06F3/03

Abstract: An object is to simply and easily evaluate differences in behavior of the eyes of subjects. A binocular measurement system 1 includes a photodetector 7 that detects reflected light from the right eye ER and the left eye EL of a subject, and outputs image signal of the reflected light, a feature amount calculating unit 11 that calculates a feature amount corresponding to the right eye ER and a feature amount corresponding to the left eye EL based on the image signal, and a comparison value calculating unit 13 that calculates, based on the two feature amounts, a comparison value obtained by comparing the two feature amounts.

公开(公告)号：US20180125357A1

公开(公告)日：2018-05-10

申请号：US15575856

申请日：2016-03-30

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutaka SUZUKI ,  Munenori TAKUMI ,  Naotoshi HAKAMATA ,  Haruyoshi TOYODA ,  Yoshinori MATSUI

IPC: A61B3/113 ,  G06F3/03 ,  A61B3/00 ,  G06K9/00 ,  A61B3/14

CPC classification number: A61B3/113 ,  A61B3/0025 ,  A61B3/08 ,  A61B3/112 ,  A61B3/145 ,  G06F3/0304 ,  G06K9/00248 ,  G06K9/00604 ,  G06K9/6215

Abstract: An object is to simply and easily evaluate differences in behavior of the eyes of subjects. A binocular measurement system 1 includes a photodetector 7 that detects reflected light from the right eye ER and the left eye EL of a subject, and outputs image signal of the reflected light, a feature amount calculating unit 11 that calculates a feature amount corresponding to the right eye ER and a feature amount corresponding to the left eye EL based on the image signal, and a comparison value calculating unit 13 that calculates, based on the two feature amounts, a comparison value obtained by comparing the two feature amounts.

公开(公告)号：US20160317033A1

公开(公告)日：2016-11-03

申请号：US15105088

申请日：2014-11-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yoshinori MATSUI ,  Kazutaka SUZUKI ,  Haruyoshi TOYODA ,  Munenori TAKUMI ,  Naotoshi HAKAMATA

IPC: A61B3/14 ,  H04N5/225 ,  G06T7/00 ,  A61B3/00

CPC classification number: A61B3/14 ,  A61B3/0008 ,  G06K9/00604 ,  G06T7/73 ,  G06T2207/10152 ,  G06T2207/30196 ,  G06T2207/30201 ,  H04N5/2256

Abstract: An eyeblink measurement system 10 is a measurement apparatus for measuring a subject's eyelid position, and includes a lighting device 1 that irradiates light extending across upper to lower eyelids of the subject's eye region E, and an image measurement device 2 that has an optical axis Ia on a plane for which a plane including an irradiation optical axis La of the light is rotated by a predetermined angle θ around an axis A1 along the light to be irradiated onto the subject, obtains height information based on the position of an optical image of the light in an image imaged, and measures the eyelid position based on the height information.

Abstract translation: 眼睛测量系统10是用于测量被检者的眼睑位置的测量装置，并且包括：照射装置1，其照射被检眼的眼睛区域E的上下眼睑延伸的光;以及图像测量装置2，其具有光轴1a 在将包含光的照射光轴La的平面沿着照射到被摄体上的光沿轴线A1旋转预定角度θ的平面上，基于光学图像的位置来获得高度信息 成像的图像中的光，并且基于高度信息测量眼睑位置。