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1. 发明授权

US08342687B2 Eye-tracking using a GPU 有权
标题翻译：使用GPU进行眼睛跟踪
公开(公告)号：US08342687B2
公开(公告)日：2013-01-01
申请号：US12893128
申请日：2010-09-29
申请人： Peter Blixt , Miroslav Kobetski , Anders Hoglund
发明人： Peter Blixt , Miroslav Kobetski , Anders Hoglund
IPC分类号： A61B3/14 , A61B3/00
CPC分类号： G02B27/0093 , A61B3/113 , G03B15/16 , G06K9/00604
摘要： Provided is a method of determining a gaze point of an eye watching a visual display controllable by a display signal. The method comprises generating a display signal using a graphics card in order for the visual display to produce a screen pattern; receiving a signal encoding an image of the eye including a corneo-scleral reflection of the screen pattern; and determining, based on in part the geometry of said reflection, a gaze point of the eye, wherein said determining a gaze point includes utilizing the graphics card as a parallel processor.The image of the eye may be received directly at the graphics card. The graphics card may extract image features in the eye images. Reference illuminators may be used, and the screen pattern may be interlaced with a distinctive reference pattern.Further provided are a gaze-tracking system and a personal computer system adapted to determine a gaze point of a viewer.
摘要翻译：提供了一种确定眼睛观察视觉显示可视显示的目视点的方法。该方法包括使用图形卡生成显示信号，以使视觉显示产生屏幕图形; 接收编码眼睛图像的信号，包括屏幕图案的角膜巩膜反射; 以及基于所述反射的几何形状确定所述眼睛的凝视点，其中所述确定凝视点包括利用所述图形卡作为并行处理器。眼睛的图像可以直接在图形卡处接收。图形卡可以提取眼睛图像中的图像特征。可以使用参考照明器，并且屏幕图案可以与独特的参考图案隔行扫描。进一步提供了一种注视跟踪系统和适于确定观看者的凝视点的个人计算机系统。

2. 发明授权

US08314707B2 Eye closure detection using structured illumination 有权
标题翻译：使用结构照明的闭眼检测
公开(公告)号：US08314707B2
公开(公告)日：2012-11-20
申请号：US12749612
申请日：2010-03-30
申请人： Miroslav Kobetski , Peter Blixt , Johnny Holmberg , John Mikael Holtz Elvesjo
发明人： Miroslav Kobetski , Peter Blixt , Johnny Holmberg , John Mikael Holtz Elvesjo
IPC分类号： G08B23/00
CPC分类号： A61B5/18 , B60K28/066 , G06K9/00597 , G06K9/00604 , G06K9/2018 , G08B21/06 , H04N7/18 , Y02T10/84
摘要： A monitoring system monitors and/or predicts drowsiness of a driver of a vehicle or a machine operator. A set of infrared or near infrared light sources is arranged such that an amount of the light emitted from the light source strikes an eye of the driver or operator. The light that impinges on the eye of the driver or operator forms a virtual image of the signal sources on the eye, including the sclera and/or cornea. An image sensor obtains consecutive images capturing the reflected light. Each image contains glints from at least a subset or from all of the light sources. A drowsiness index can be determined based on the extracted information of the glints of the sequence of images. The drowsiness index indicates a degree of drowsiness of the driver or operator.
摘要翻译：监视系统监视和/或预测车辆或机器操作者的驾驶员的困倦。一组红外线或近红外光源被布置成使得从光源发射的光的量撞击驾驶员或驾驶员的眼睛。撞在驾驶员或操作者的眼睛上的光形成眼睛上的信号源的虚拟图像，包括巩膜和/或角膜。图像传感器获得捕获反射光的连续图像。每个图像包含至少一个子集或来自所有光源的闪光。可以基于所提取的图像序列的闪烁的信息来确定嗜睡指数。嗜睡指数表示司机或操作者的睡意度。

3. 发明申请

US20100245093A1 EYE CLOSURE DETECTION USING STRUCTURED ILLUMINATION 有权
标题翻译：使用结构照明的眼睛闭合检测
公开(公告)号：US20100245093A1
公开(公告)日：2010-09-30
申请号：US12749612
申请日：2010-03-30
申请人： Miroslav Kobetski , Peter Blixt , Johnny Holmberg , John Mikael Holtz Elvesjo
发明人： Miroslav Kobetski , Peter Blixt , Johnny Holmberg , John Mikael Holtz Elvesjo
IPC分类号： G08B21/06 , H04N7/18
CPC分类号： A61B5/18 , B60K28/066 , G06K9/00597 , G06K9/00604 , G06K9/2018 , G08B21/06 , H04N7/18 , Y02T10/84
摘要： A monitoring system monitors and/or predicts drowsiness of a driver of a vehicle or a machine operator. A set of infrared or near infrared light sources is arranged such that an amount of the light emitted from the light source strikes an eye of the driver or operator. The light that impinges on the eye of the driver or operator forms a virtual image of the signal sources on the eye, including the sclera and/or cornea. An image sensor obtains consecutive images capturing the reflected light. Each image contains glints from at least a subset or from all of the light sources. A drowsiness index can be determined based on the extracted information of the glints of the sequence of images. The drowsiness index indicates a degree of drowsiness of the driver or operator.
摘要翻译：监视系统监视和/或预测车辆或机器操作者的驾驶员的困倦。一组红外线或近红外光源被布置成使得从光源发射的光的量撞击驾驶员或驾驶员的眼睛。撞在驾驶员或操作者的眼睛上的光形成眼睛上的信号源的虚拟图像，包括巩膜和/或角膜。图像传感器获得捕获反射光的连续图像。每个图像包含至少一个子集或来自所有光源的闪光。可以基于所提取的图像序列的闪烁的信息来确定嗜睡指数。嗜睡指数表示司机或操作者的睡意度。

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