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1. 发明申请

US20110279666A1 DETECTION OF GAZE POINT ASSISTED BY OPTICAL REFERENCE SIGNAL 有权
标题翻译：通过光学参考信号检测大角度点
公开(公告)号：US20110279666A1
公开(公告)日：2011-11-17
申请号：US13145636
申请日：2009-01-26
申请人： Johan Strömbom , Simon Gustafsson , Marten Skogo , John Mikael Holtz Elvesjö , Per Nystedt , Peter Blixt
发明人： Johan Strömbom , Simon Gustafsson , Marten Skogo , John Mikael Holtz Elvesjö , Per Nystedt , Peter Blixt
IPC分类号： H04N7/18
CPC分类号： G06K9/00604 , A61B3/113 , G06F19/00 , H04N7/18
摘要： A gaze-point detection system includes at least one infrared (IR) signal source to be placed in a test scene as a reference point, a pair of eye glasses to be worn by a person, and a data processing and storage unit for calculating a gaze point of the person wearing the pair of eye glasses. The pair of eye glasses includes an image sensor, an eye-tracking unit and a camera. The image sensor detects IR signals from the at least one IR signal source and generates an IR signal source tracking signal. The eye-tracking unit determines adapted to determine the gaze direction of the person and generates an eye-tracking signal, and the camera acquires a test scene picture. The data processing and storage unit communicates with the pair of eye glasses and calculates the gaze point relative to the test scene picture.
摘要翻译：注视点检测系统包括要放置在作为参考点的测试场景中的至少一个红外（IR）信号源，要由人佩戴的一副眼镜，以及用于计算一个戴着眼镜的人的目光点。一对眼镜包括图像传感器，眼睛跟踪单元和照相机。图像传感器检测来自至少一个IR信号源的IR信号，并产生IR信号源跟踪信号。眼睛跟踪单元确定适于确定人的凝视方向并产生眼睛跟踪信号，并且相机获取测试场景图像。数据处理和存储单元与一对眼镜通信，并相对于测试场景图像计算凝视点。

2. 发明申请

US20110069277A1 VISUAL DISPLAY WITH ILLUMINATORS FOR GAZE TRACKING 有权
标题翻译：带有照明灯的视觉显示器
公开(公告)号：US20110069277A1
公开(公告)日：2011-03-24
申请号：US12750967
申请日：2010-03-31
申请人： Peter BLIXT , Anders Hoglund , Bengt Rehnstrom , John Elvesjö
发明人： Peter BLIXT , Anders Hoglund , Bengt Rehnstrom , John Elvesjö
IPC分类号： A61B3/14 , G02F1/1335
CPC分类号： G06F3/013 , A61B3/113 , G01S17/46 , G01S17/66 , G06F3/01 , G06K9/00604
摘要： A visual display characterized by hidden reference illuminators is adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input for gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. A system and method for determining a gaze point of an eye watching a visual display comprising reference illuminators are further provided. The determination of the gaze point may be based on an ellipsoidal cornea model.
摘要翻译：特征在于隐藏参考照明器的视觉显示器适于发射不可见的光，以在观看显示器的屏幕表面的眼睛上产生角膜巩膜反射。跟踪这种反射和瞳孔中心为注视跟踪提供输入。还提供了一种用于装备的方法和具有参考照明器的LCD。还提供了一种用于确定观看包括参考照明器的视觉显示器的眼睛的凝视点的系统和方法。注视点的确定可以基于椭圆形角膜模型。

3. 发明授权

US06812152B2 Method to obtain contamination free laser mirrors and passivation of these 失效
标题翻译：获得无污染激光镜和钝化的方法
公开(公告)号：US06812152B2
公开(公告)日：2004-11-02
申请号：US09924605
申请日：2001-08-09
申请人： L. Karsten V. Lindström , N. Peter Blixt , Svante H. Söderholm , Anand Srinivasan , Carl-Fredrik Carlström
发明人： L. Karsten V. Lindström , N. Peter Blixt , Svante H. Söderholm , Anand Srinivasan , Carl-Fredrik Carlström
IPC分类号： H01L21302
CPC分类号： H01S5/028 , H01S5/0201 , H01S5/0203 , H01S5/0281 , H01S5/18
摘要： A method to obtain contamination free surfaces of a material chosen from the group comprising GaAs, GaAlAs, InGaAs, InGaAsP and InGaAs at crystal mirror facets for GaAs based laser cavities. The crystal mirrors facets are cleaved out exposed to an ambient atmosphere containing a material from the group comprising air, dry air, or dry nitrogen ambients. Any oxides and other foreign contaminants obtained during the ambient atmosphere exposure of the mirror facets are removed by dry etching in vacuum. Thereafter, a native nitride layer is grown on the mirror facets by treating them with nitrogen.
摘要翻译：一种在砷化镓基激光腔的晶体镜面处获得选自GaAs，GaAlAs，InGaAs，InGaAsP和InGaAs的材料的无污染表面的方法。水晶镜面被切开，暴露于包含空气，干燥空气或干燥氮气环境中的材料的环境气氛中。通过在真空中的干蚀刻来除去在镜面的环境大气暴露期间获得的任何氧化物和其它外来污染物。此后，通过用氮气处理，在镜面上生长天然氮化物层。

4. 发明授权

US08976110B2 Power management in an eye-tracking system 有权
标题翻译：眼睛跟踪系统中的电源管理
公开(公告)号：US08976110B2
公开(公告)日：2015-03-10
申请号：US13283224
申请日：2011-10-27
申请人： Henrik Eskilsson , Mårten Skogö , John Elvesjö , Peter Blixt
发明人： Henrik Eskilsson , Mårten Skogö , John Elvesjö , Peter Blixt
IPC分类号： G09G5/00
CPC分类号： H04N5/23241 , G02B27/0172 , G02B2027/0138 , G06F3/013 , G06K9/00597 , G09G2330/021 , G09G2354/00 , H04N5/23245
摘要： A personal computer system includes a visual display, an imaging device adapted to provide eye-tracking data by imaging the face of a viewer of the visual display, and an input device for accepting eye-tracking control data and other input data. The imaging device is switchable between at least an active mode, a ready mode and an idle mode, and the switching time from the idle mode to the active mode is longer than the switching time from the ready mode to the active mode. The eye-tracking data provided in the ready mode may include eye position but not eye orientation. The system may include a dedicated input device for forcing the imaging device into active mode by directly triggering an interrupt; alternatively, the dedicated input device forces it permanently into idle mode.
摘要翻译：个人计算机系统包括视觉显示器，适于通过对视觉显示器的观看者的脸进行成像来提供眼睛跟踪数据的成像装置，以及用于接受眼睛跟踪控制数据和其他输入数据的输入装置。成像装置可以在至少活动模式，就绪模式和空闲模式之间切换，并且从空闲模式到活动模式的切换时间长于从就绪模式到活动模式的切换时间。在就绪模式中提供的眼睛跟踪数据可以包括眼睛位置，但不包括眼睛定位。该系统可以包括用于通过直接触发中断来迫使成像装置进入活动模式的专用输入装置; 或者，专用输入设备强制其永久地进入空闲模式。

5. 发明申请

US20120327101A1 VISUAL DISPLAY WITH ILLUMINATORS FOR GAZE TRACKING 有权
标题翻译：带有照明灯的视觉显示器
公开(公告)号：US20120327101A1
公开(公告)日：2012-12-27
申请号：US13465245
申请日：2012-05-07
申请人： Peter Blixt , Anders Hoglund , John Elvesjö
发明人： Peter Blixt , Anders Hoglund , John Elvesjö
IPC分类号： G09G5/02 , G09G3/36
CPC分类号： G06F3/013 , A61B3/113 , G01S17/46 , G01S17/66 , G06F3/01 , G06K9/00604
摘要： A visual display characterized by hidden reference illuminators is adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input for gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. A system and method for determining a gaze point of an eye watching a visual display comprising reference illuminators are further provided. The determination of the gaze point may be based on an ellipsoidal cornea model.
摘要翻译：特征在于隐藏参考照明器的视觉显示器适于发射不可见的光，以在观看显示器的屏幕表面的眼睛上产生角膜巩膜反射。跟踪这种反射和瞳孔中心为注视跟踪提供输入。还提供了一种用于装备的方法和具有参考照明器的LCD。还提供了一种用于确定观看包括参考照明器的视觉显示器的眼睛的凝视点的系统和方法。注视点的确定可以基于椭圆形角膜模型。

6. 发明授权

US06803605B2 Method to GaAs based lasers and a GaAs based laser 失效
公开(公告)号：US06803605B2
公开(公告)日：2004-10-12
申请号：US10218497
申请日：2002-08-15
申请人： L. Karsten V. Lindstrom , N. Peter Blixt , Svante H. Soderholm , Lauerant Krummenacher , Christofer Silvenius , Anand Srinivasan , Carl-Fredrik Carlstrom
发明人： L. Karsten V. Lindstrom , N. Peter Blixt , Svante H. Soderholm , Lauerant Krummenacher , Christofer Silvenius , Anand Srinivasan , Carl-Fredrik Carlstrom
IPC分类号： H01L3300
CPC分类号： H01S5/028 , H01S5/0202 , H01S5/0282 , H01S5/12 , H01S5/18 , H01S5/2081 , H01S5/2214
摘要： The invention relates to a method using dry etching to obtain contamination free surfaces on of a material chosen from the group comprising GaAs, GaAlAs, InGaAsP, and InGaAs to obtain nitride layers on arbitrary structures on GaAs based lasers, and a GaAs based laser manufactured in accordance with the method. The laser surface is provided with a mask masking away parts of its surface to be prevented from dry etching. The laser is then placed in vacuum. Dry etching is then performed using a substance chosen from the group containing: chemically reactive gases, inert gases, a mixture between chemically reactive gases and inert gases. A native nitride layer is created using plasma containing nitrogen. A protective layer and/or a mirror coating is added.

7. 发明授权

US09495589B2 Detection of gaze point assisted by optical reference signal 有权
标题翻译：通过光学参考信号辅助的视线点检测
公开(公告)号：US09495589B2
公开(公告)日：2016-11-15
申请号：US13145636
申请日：2009-01-26
申请人： Johan Strombom , Marten Skogo , Per Nystedt , Simon Gustafsson , John Mikael Holtz Elvesjö , Peter Blixt
发明人： Johan Strombom , Marten Skogo , Per Nystedt , Simon Gustafsson , John Mikael Holtz Elvesjö , Peter Blixt
IPC分类号： H04N7/18 , G06K9/00 , A61B3/113
CPC分类号： G06K9/00604 , A61B3/113 , G06F19/00 , H04N7/18
摘要： A gaze-point detection system includes at least one infrared (IR) signal source to be placed in a test scene as a reference point, a pair of eye glasses to be worn by a person, and a data processing and storage unit for calculating a gaze point of the person wearing the pair of eye glasses. The pair of eye glasses includes an image sensor, an eye-tracking unit and a camera. The image sensor detects IR signals from the at least one IR signal source and generates an IR signal source tracking signal. The eye-tracking unit determines adapted to determine the gaze direction of the person and generates an eye-tracking signal, and the camera acquires a test scene picture. The data processing and storage unit communicates with the pair of eye glasses and calculates the gaze point relative to the test scene picture.
摘要翻译：注视点检测系统包括要放置在作为参考点的测试场景中的至少一个红外（IR）信号源，要由人佩戴的一副眼镜，以及用于计算一个戴着眼镜的人的目光点。一对眼镜包括图像传感器，眼睛跟踪单元和照相机。图像传感器检测来自至少一个IR信号源的IR信号，并产生IR信号源跟踪信号。眼睛跟踪单元确定适于确定人的凝视方向并产生眼睛跟踪信号，并且相机获取测试场景图像。数据处理和存储单元与一对眼镜通信，并相对于测试场景图像计算凝视点。

8. 发明授权

US08610768B2 Eye detection unit using sequential data flow 有权
标题翻译：眼睛检测单元使用顺序数据流
公开(公告)号：US08610768B2
公开(公告)日：2013-12-17
申请号：US12833575
申请日：2010-07-09
申请人： Johnny Holmberg , Peter Blixt , John Elvesjö
发明人： Johnny Holmberg , Peter Blixt , John Elvesjö
IPC分类号： H04N7/18
CPC分类号： G06F3/013 , A61B3/113 , G06K9/00604
摘要： The invention generally relates to systems and methods for eye detection for use in, for example, installations and systems for tracking eyes and gaze angle/directions. The system includes a plurality of eye detection units connected to an image sensor. The eye detection units are adapted to receive regions of picture elements of a digital image frame substantially in parallel and wherein the eye detection units are adapted to operate substantially in parallel, each eye detection unit being adapted to receive a specified region of the picture elements of at least one digital image frame and including an eye feature extraction module adapted to perform a eye feature extraction process on the received picture elements to identify predetermined eye features. An eye data generating module is adapted to receive information of potential identified eye features including picture element coordinates for the identified eye features, and the received region of picture elements, and generate eye data based on the information of potential eye features, wherein the eye data is generated if identified eye features fulfill predetermined conditions, and transfer generated eye data and the received regions of picture elements to a processing module, and wherein a data flow of the eye data and the region of picture elements of a digital image frame is substantially parallel.
摘要翻译：本发明一般涉及用于例如用于跟踪眼睛和注视角度/方向的装置和系统中的用于眼睛检测的系统和方法。该系统包括连接到图像传感器的多个眼睛检测单元。眼睛检测单元适于基本并行地接收数字图像帧的图像元素的区域，并且其中眼睛检测单元适于基本并行地操作，每个眼睛检测单元适于接收图像元素的指定区域至少一个数字图像帧，并且包括适于对所接收的图像元素执行眼睛特征提取处理以识别预定的眼睛特征的眼睛特征提取模块。眼数据生成模块适于接收包括识别的眼睛特征的图像元素坐标和图像元素的接收区域的潜在识别的眼睛特征的信息，并且基于潜在的眼睛特征的信息生成眼睛数据，其中眼睛数据如果识别出的眼睛特征满足预定条件，则生成眼图数据和图像的接收区域到处理模块，并且其中数据图像帧的眼睛数据和像素区域的数据流基本上是平行的。

9. 发明授权

US08562136B2 Visual display with illuminators for gaze tracking 有权
标题翻译：视觉显示与照明器注视跟踪
公开(公告)号：US08562136B2
公开(公告)日：2013-10-22
申请号：US13465245
申请日：2012-05-07
申请人： Peter Blixt , Anders Hoglund , Bengt Rehnstrom , John Elvesjö
发明人： Peter Blixt , Anders Hoglund , Bengt Rehnstrom , John Elvesjö
IPC分类号： A61B3/14 , A61B3/00
CPC分类号： G06F3/013 , A61B3/113 , G01S17/46 , G01S17/66 , G06F3/01 , G06K9/00604
摘要： A visual display characterized by hidden reference illuminators is adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input for gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. A system and method for determining a gaze point of an eye watching a visual display comprising reference illuminators are further provided. The determination of the gaze point may be based on an ellipsoidal cornea model.
摘要翻译：特征在于隐藏参考照明器的视觉显示器适于发射不可见的光，以在观看显示器的屏幕表面的眼睛上产生角膜巩膜反射。跟踪这种反射和瞳孔中心为注视跟踪提供输入。还提供了一种用于装备的方法和具有参考照明器的LCD。还提供了一种用于确定观看包括参考照明器的视觉显示器的眼睛的凝视点的系统和方法。注视点的确定可以基于椭圆形角膜模型。

10. 发明申请

US20110013007A1 EYE DETECTION UNIT USING SEQUENTIAL DATA FLOW 有权
标题翻译：使用顺序数据流的眼睛检测单元
公开(公告)号：US20110013007A1
公开(公告)日：2011-01-20
申请号：US12833575
申请日：2010-07-09
申请人： JOHNNY HOLMBERG , Peter Blixt , John Elvesjö
发明人： JOHNNY HOLMBERG , Peter Blixt , John Elvesjö
IPC分类号： H04N7/18
CPC分类号： G06F3/013 , A61B3/113 , G06K9/00604
摘要： The invention generally relates to systems and methods for eye detection for use in, for example, installations and systems for tracking eyes and gaze angle/directions. The system includes a plurality of eye detection units connected to an image sensor. The eye detection units are adapted to receive regions of picture elements of a digital image frame substantially in parallel and wherein the eye detection units are adapted to operate substantially in parallel, each eye detection unit being adapted to receive a specified region of the picture elements of at least one digital image frame and including an eye feature extraction module adapted to perform a eye feature extraction process on the received picture elements to identify predetermined eye features. An eye data generating module is adapted to receive information of potential identified eye features including picture element coordinates for the identified eye features, and the received region of picture elements, and generate eye data based on the information of potential eye features, wherein the eye data is generated if identified eye features fulfil predetermined conditions, and transfer generated eye data and the received regions of picture elements to a processing module, and wherein a data flow of the eye data and the region of picture elements of a digital image frame is substantially parallel.
摘要翻译：本发明一般涉及用于例如用于跟踪眼睛和注视角度/方向的装置和系统中的用于眼睛检测的系统和方法。该系统包括连接到图像传感器的多个眼睛检测单元。眼睛检测单元适于基本并行地接收数字图像帧的图像元素的区域，并且其中眼睛检测单元适于基本并行地操作，每个眼睛检测单元适于接收图像元素的指定区域至少一个数字图像帧，并且包括适于对所接收的图像元素执行眼睛特征提取处理以识别预定的眼睛特征的眼睛特征提取模块。眼数据生成模块适于接收包括识别的眼睛特征的图像元素坐标和图像元素的接收区域的潜在识别的眼睛特征的信息，并且基于潜在的眼睛特征的信息生成眼睛数据，其中眼睛数据如果识别出的眼睛特征满足预定条件，则生成眼图数据和图像的接收区域到处理模块，并且其中数据图像帧的眼睛数据和像素区域的数据流基本上是平行的。

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