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1. 发明授权

US08358337B2 Pupil detection device and pupil detection method 有权
标题翻译：瞳孔检测装置和瞳孔检测方法
公开(公告)号：US08358337B2
公开(公告)日：2013-01-22
申请号：US12064481
申请日：2006-08-22
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： H04N7/18 , H04N5/30 , G03B13/00 , G01B9/04 , G01J1/20
CPC分类号： A61B3/11 , A61B3/113 , A61B5/18
摘要： A pupil detection device includes a camera, a light source disposed at the camera, an optical system, and an image processing system, which are disposed so that the examinee's face is irradiated with the light from the light source from the camera, and a face image including a pupil is formed in the camera. The light source includes a first light source, having a first wavelength that makes a bright pupil image by reflection in the examinee's pupil, and a second light source having a second wavelength that makes a dark pupil image by reflection in the examinee's pupil, but otherwise exhibiting the same illumination effect as the first light source. The camera includes a first image data acquisition system using the first illumination light source, and a second image data acquisition system using the second illumination light source.
摘要翻译：瞳孔检测装置包括照相机，设置在照相机上的光源，光学系统和图像处理系统，其被布置成使得受检者的脸部被来自照相机的来自光源的光照射，并且面部在相机中形成包括瞳孔的图像。光源包括第一光源，具有通过在受检者的瞳孔中的反射而形成明亮的瞳孔图像的第一波长和具有第二波长的第二光源，该第二波长通过在受检者的瞳孔中反射而形成黑瞳孔图像，但是否则具有与第一光源相同的照明效果。相机包括使用第一照明光源的第一图像数据采集系统和使用第二照明光源的第二图像数据采集系统。

2. 发明授权

US07533989B2 Sight-line detection method and device, and three-dimensional view-point measurement device 有权
标题翻译：视线检测方法和装置，以及三维视点测量装置
公开(公告)号：US07533989B2
公开(公告)日：2009-05-19
申请号：US10584635
申请日：2004-12-24
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： A61B3/14 , A61B3/10
CPC分类号： A61B3/113 , G06K9/00604
摘要： Method and device for detecting a line-of-sight of a subject and a three-dimensional view-point measurement device. The method uses a first camera, that measures the position of a pupil relative to a coordinate system, a second camera having a light source arranged at a known position in the coordinate system, and forming a corneal reflection center to obtain data of a size of vector r from the corneal reflection center to the pupil center and an angle φ of the vector r relative to a coordinate axis of the coordinate system, and a calculation means for calculating a line-of-sight direction based on information from each camera. In determining a relational formula, a subject is made to gaze at a known point to perform measurement and a relational formula is determined. In a line-of-sight determining stage, the subject is measured again using the relational formula. A three-dimensional view-point measurement device can be configured so as to simultaneously measure the lines-of-sights of both eyes with two cameras and two light sources.
摘要翻译：用于检测被摄体和三维视点测量装置的视线的方法和装置。该方法使用测量瞳孔相对于坐标系的位置的第一照相机，具有布置在坐标系中已知位置处的光源的第二照相机，以及形成角膜反射中心以获得尺寸为从角膜反射中心到瞳孔中心的向量r和矢量r相对于坐标系坐标轴的角度phi，以及用于基于来自每个照相机的信息计算视线方向的计算装置。在确定关系公式时，使受试者凝视在已知点进行测量，并确定关系式。在视线确定阶段，使用关系公式再次测量受试者。可以配置三维视点测量装置，以便同时用两个照相机和两个光源测量双眼的视线。

3. 发明授权

US07533988B2 Eyeshot detection device using distance image sensor 有权
标题翻译：使用距离图像传感器的眼睛检测装置
公开(公告)号：US07533988B2
公开(公告)日：2009-05-19
申请号：US11464690
申请日：2006-08-15
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： A61B3/10 , A61B3/14
CPC分类号： A61B3/113 , G06K9/00604
摘要： An object of the present invention is, when determining a line-of-sight vector of a subject, to identify a three-dimensional position of a pupil center or corneal reflection center thereof. The line-of-sight vector is determined by measuring a distance from a camera to the pupil center or corneal reflection center of the subject using a two-dimensional CMOS distance image sensor by a light time-of-flight method and obtaining position information of the pupil center and corneal reflection center of the subject using the distance image sensor. If a position and a direction of the camera are identified, a camera-pupil center vector is determined from image information of the pupil center of the subject. Since the camera-pupil center distance has been measured, a pupil center position in a three-dimensional space is determined from the above information. Combining this with two line-of-sight vectors determines a position where line-of-sight vectors intersect, or a view-point.
摘要翻译：本发明的目的是在确定被摄体的视线矢量时识别瞳孔中心或角膜反射中心的三维位置。视线矢量通过使用二维CMOS距离图像传感器，通过轻时间飞行方法测量从相机到对象的瞳孔中心或角膜反射中心的距离来确定，并且获得位置信息使用距离图像传感器的受试者的瞳孔中心和角膜反射中心。如果识别出相机的位置和方向，则根据被摄体的瞳孔中心的图像信息确定照相机 - 瞳孔中心矢量。由于已经测量了相机 - 瞳孔中心距离，因此根据上述信息确定三维空间中的瞳孔中心位置。将其与两个视线向量组合确定视线矢量相交的位置或视点。

4. 发明授权

US09329683B2 Method for detecting point of gaze and device for detecting point of gaze 有权
标题翻译：用于检测注视点的方法和用于检测注视点的装置
公开(公告)号：US09329683B2
公开(公告)日：2016-05-03
申请号：US13992877
申请日：2011-12-07
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： A61B3/113 , G06K9/00 , G06F3/01 , G02B27/00
CPC分类号： G06F3/013 , A61B3/113 , G02B27/0093 , G06K9/00604 , G06T7/73 , G06T2207/10012 , G06T2207/30041
摘要： A gaze point detection device 1 has four cameras 2a, 2b, 2c, 2d, light sources 3a, 3b, 3c, 3d, control circuits 4, 5, 6, and an image processor 7. The image processor 7 calculates vectors r, each of which is from a corneal reflection point to the center of a pupil, on a plane that is vertical to base lines. The image processor 7 also calculates angles θ of the line of sight on the basis of the vectors r and by using a function f including M parameters. Moreover, the image processor 7 determines the M parameters based on the angles θ, and detects a point of gaze Q based on the line of sight direction calculated using the determined parameters. The number of cameras is set at M×½ or higher.
摘要翻译：注视点检测装置1具有四个照相机2a，2b，2c，2d，光源3a，3b，3c，3d，控制电路4,5,6和图像处理器7.图像处理器7计算矢量r，其从角膜反射点到瞳孔的中心，在垂直于基线的平面上。图像处理器7还计算角度和角度; 基于向量r并通过使用包括M个参数的函数f来生成视线。此外，图像处理器7基于角度θ来确定M个参数;并且基于使用所确定的参数计算的视线方向来检测注视点Q。相机的数量设置为M×½或更高。

5. 发明授权

US09135708B2 Gaze point detection method and gaze point detection device 有权
标题翻译：凝视点检测方法和凝视点检测装置
公开(公告)号：US09135708B2
公开(公告)日：2015-09-15
申请号：US13814800
申请日：2011-08-09
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： G06K9/00 , G06T7/00 , A61B3/113
CPC分类号： G06T7/004 , A61B3/113 , G06K9/00604 , G06T7/70
摘要： A gaze point detection device 1 comprises two stereo cameras 2a, 2b for acquiring a face image of a subject A, light sources 3a, 3b disposed on the outside of apertures 9a, 9b, a control circuit 4, 5, 6, and an image processor 7. The image processor 7 calculates a vector r from a corneal reflection point to a pupil on a plane perpendicular to reference lines of the stereo cameras 2a, 2b, computes an angle θ of lines of sight of the subject A with respect to the respective reference lines by using a function f1, corrects the function f1 such that directions of lines of sight are closer to each other, and calculates the line of sight directions to detect a gaze point Q on a display screen.
摘要翻译：注视点检测装置1包括用于获取被检体A的脸部图像的两个立体照相机2a，2b，设置在孔9a，9b的外侧的光源3a，3b，控制电路4,5,6和图像图像处理器7计算从垂直于立体照相机2a，2b的参考线的平面上的角膜反射点到瞳孔的矢量r，计算角度和角度; 通过使用函数f1相对于各个参考线的对象A的视线的校正，使得视线的方向彼此更靠近的函数f1，并且计算视线方向以检测凝视点 Q在显示屏幕上。

6. 发明申请

US20130329957A1 METHOD FOR DETECTING POINT OF GAZE AND DEVICE FOR DETECTING POINT OF GAZE 有权
标题翻译：用于检测高度点的方法和用于检测高度点的装置
公开(公告)号：US20130329957A1
公开(公告)日：2013-12-12
申请号：US13992877
申请日：2011-12-07
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： G06F3/01
CPC分类号： G06F3/013 , A61B3/113 , G02B27/0093 , G06K9/00604 , G06T7/73 , G06T2207/10012 , G06T2207/30041
摘要： A gaze point detection device 1 has four cameras 2a, 2b, 2c, 2d, light sources 3a, 3b, 3c, 3d, control circuits 4, 5, 6, and an image processor 7. The image processor 7 calculates vectors r, each of which is from a corneal reflection point to the center of a pupil, on a plane that is vertical to base lines. The image processor 7 also calculates angles θ of the line of sight on the basis of the vectors r and by using a function f including M parameters. Moreover, the image processor 7 determines the M parameters based on the angles θ, and detects a point of gaze Q based on the line of sight direction calculated using the determined parameters. The number of cameras is set at M×1/2 or higher.
摘要翻译：注视点检测装置1具有四个照相机2a，2b，2c，2d，光源3a，3b，3c，3d，控制电路4,5,6和图像处理器7.图像处理器7计算矢量r，其从角膜反射点到瞳孔的中心，在垂直于基线的平面上。图像处理器7还基于向量r并且使用包括M个参数的函数f来计算视线的角度θ。此外，图像处理器7基于角度θ来确定M个参数，并且基于使用确定的参数计算的视线方向来检测注视点Q。相机的数量设置为M×1/2或更高。

7. 发明申请

US20070279590A1 Sight-Line Detection Method and Device, and Three-Dimensional View-Point Measurement Device 有权
标题翻译：视线检测方法和装置，以及三维视点测量装置
公开(公告)号：US20070279590A1
公开(公告)日：2007-12-06
申请号：US10584635
申请日：2004-12-24
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： A61B3/113
CPC分类号： A61B3/113 , G06K9/00604
摘要： A method and device for detecting a line-of-sight of a subject and a three-dimensional view-point measurement device are provided. The method for detecting a line-of-sight uses a first camera 10, 11 that measure the position of a pupil relative to a coordinate system, a second camera 12 having a light source arranged at a known position in the coordinate system and forming a corneal reflection center to obtain data of a size of vector r from the corneal reflection center to the pupil center and an angle φ of the vector r relative to a coordinate axis of the coordinate system, and a calculation means for calculating a line-of-sight direction based on information from each of the cameras. In a stage of determining a relational formula, a subject is made to gaze at a known point to perform measurement and a relational formula is determined. In a stage of determining a line-of-sight, the subject is measured again to determine the line-of-sight using the relational formula. Further, a three-dimensional view-point measurement device can be configured so as to simultaneously measure the line-of-sights of both eyes with two cameras and two light sources.
摘要翻译：提供了用于检测被摄体和三维视点测量装置的视线的方法和装置。用于检测视线的方法使用测量瞳孔相对于坐标系的位置的第一照相机10,11，具有布置在坐标系中的已知位置处的光源的第二照相机12，并形成角膜反射中心，以获得从角膜反射中心到瞳孔中心的矢量r的大小的数据，以及矢量r相对于坐标系的坐标轴的角度phi，以及计算装置，基于来自每个相机的信息的视线方向。在确定关系公式的阶段中，使受试者凝视在已知点进行测量并确定关系式。在确定视线的阶段，再次测量对象以使用关系公式确定视线。此外，三维视点测量装置可以被配置为利用两个照相机和两个光源同时测量两眼的视线。

8. 发明申请

US20070014552A1 EYESHOT DETECTION DEVICE USING DISTANCE IMAGE SENSOR 有权
标题翻译：使用距离图像传感器的眼睛检测装置
公开(公告)号：US20070014552A1
公开(公告)日：2007-01-18
申请号：US11464690
申请日：2006-08-15
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： G03B17/00
CPC分类号： A61B3/113 , G06K9/00604
摘要： An object of the present invention is, when determining a line-of-sight vector of a subject, to identify a three-dimensional position of a pupil center or corneal reflection center thereof. The line-of-sight vector is determined by measuring a distance from a camera to the pupil center or corneal reflection center of the subject using a two-dimensional CMOS distance image sensor by a light time-of-flight method and obtaining position information of the pupil center and corneal reflection center of the subject using the distance image sensor. If a position and a direction of the camera are identified, a camera-pupil center vector is determined from image information of the pupil center of the subject. Since the camera-pupil center distance has been measured, a pupil center position in a three-dimensional space is determined from the above information. Combining this with two line-of-sight vectors determines a position where line-of-sight vectors intersect, or a view-point.
摘要翻译：本发明的目的是在确定被摄体的视线矢量时识别瞳孔中心或角膜反射中心的三维位置。视线矢量是通过使用二维CMOS距离图像传感器通过轻时间飞行方法测量从相机到对象的瞳孔中心或角膜反射中心的距离来确定的，并且获得位置信息使用距离图像传感器的受试者的瞳孔中心和角膜反射中心。如果识别出相机的位置和方向，则根据被摄体的瞳孔中心的图像信息确定照相机 - 瞳孔中心矢量。由于已经测量了相机 - 瞳孔中心距离，因此根据上述信息确定三维空间中的瞳孔中心位置。将其与两个视线向量组合确定视线矢量相交的位置或视点。

9. 发明授权

US08371693B2 Autism diagnosis support apparatus 有权
标题翻译：自闭症诊断支持仪器
公开(公告)号：US08371693B2
公开(公告)日：2013-02-12
申请号：US13074606
申请日：2011-03-29
申请人： Yoshinobu Ebisawa
发明人： Yoshinobu Ebisawa
IPC分类号： A61B3/14
CPC分类号： A61B5/168 , G06F3/013 , G06F19/00 , G16H50/30
摘要： An autism diagnosis support apparatus 1 according to the present invention is an autism diagnosis support apparatus that detects a symptom of autism based on a state of a subject looking at a target, including: an eye-gaze point detection unit 2 that detects a line-of-sight direction of the subject looking at the target; a color camera 3 that takes an image of the target; a pupil position detection unit 4 that measures a pupil coordinate of the target; and a data analysis unit 7 that calculates a relationship between the line-of-sight direction of the subject and a pupil position of the target using the line-of-sight direction and the pupil coordinate and outputs the relationship along with the image of the target.
摘要翻译：根据本发明的自闭症诊断支援装置1是根据观看目标的被检体的状态来检测自闭症症状的自闭症诊断支援装置，其特征在于，包括：眼睛凝视点检测部2，观察目标的目标方向; 拍摄目标图像的彩色照相机3; 测量目标的瞳孔坐标的光瞳位置检测单元4; 以及数据分析单元7，其使用视线方向和瞳孔坐标来计算被摄体的视线方向与目标的瞳孔位置之间的关系，并且将该关系与图像目标。

10. 发明申请

US20110242486A1 AUTISM DIAGNOSIS SUPPORT APPARATUS 有权
标题翻译： AUTISM诊断设备
公开(公告)号：US20110242486A1
公开(公告)日：2011-10-06
申请号：US13074606
申请日：2011-03-29
申请人： Yoshinobu EBISAWA
发明人： Yoshinobu EBISAWA
IPC分类号： A61B3/113 , A61B3/14
CPC分类号： A61B5/168 , G06F3/013 , G06F19/00 , G16H50/30
摘要： An autism diagnosis support apparatus 1 according to the present invention is an autism diagnosis support apparatus that detects a symptom of autism based on a state of a subject looking at a target, including: an eye-gaze point detection unit 2 that detects a line-of-sight direction of the subject looking at the target; a color camera 3 that takes an image of the target; a pupil position detection unit 4 that measures a pupil coordinate of the target; and a data analysis unit 7 that calculates a relationship between the line-of-sight direction of the subject and a pupil position of the target using the line-of-sight direction and the pupil coordinate and outputs the relationship along with the image of the target.
摘要翻译：根据本发明的自闭症诊断支援装置1是根据观看目标的被检体的状态来检测自闭症症状的自闭症诊断支援装置，其特征在于，包括：眼睛凝视点检测部2，观察目标的目标方向; 拍摄目标图像的彩色照相机3; 测量目标的瞳孔坐标的光瞳位置检测单元4; 以及数据分析单元7，其使用视线方向和瞳孔坐标来计算被摄体的视线方向与目标的瞳孔位置之间的关系，并且将该关系与图像目标。

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