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1. 发明授权

US07746235B2 System and method of detecting eye closure based on line angles 有权
标题翻译：基于线角检测眼睑的系统和方法
公开(公告)号：US07746235B2
公开(公告)日：2010-06-29
申请号：US11076600
申请日：2005-03-10
申请人： Riad I. Hammoud , Phillip V. Malawey
发明人： Riad I. Hammoud , Phillip V. Malawey
IPC分类号： G08B23/00
CPC分类号： G06K9/00597 , G08B21/06
摘要： A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye, and a video processor for processing the images. The processor includes an edge detector for detecting edges of the eye in the image, and a line selector for generating lines at any of select angles representative of the detected edges. The processor determines the state of eye closure, such as an open eye or closed eye, based on an angle between two of the lines that select angles. The system may be employed on a vehicle to determine the eye closure state of a driver of the vehicle.
摘要翻译：提供了一种用于监视眼睛以确定眼睛闭合的系统和方法。该系统包括面向产生眼睛图像的视频成像摄像机和用于处理图像的视频处理器。处理器包括用于检测图像中的眼睛的边缘的边缘检测器，以及用于在代表检测到的边缘的任何选择角度处产生线的线选择器。基于选择角度的两条线之间的角度，处理器确定眼睛闭合的状态，例如睁眼或闭眼。该系统可以用在车辆上以确定车辆的驾驶员的眼睛闭合状态。

2. 发明授权

US07253739B2 System and method for determining eye closure state 有权
标题翻译：用于确定眼睛闭合状态的系统和方法
公开(公告)号：US07253739B2
公开(公告)日：2007-08-07
申请号：US11077042
申请日：2005-03-10
申请人： Riad I. Hammoud , Phillip V. Malawey
发明人： Riad I. Hammoud , Phillip V. Malawey
IPC分类号： G08B23/00
CPC分类号： G06K9/00604 , A61B3/113 , A61B5/1103 , A61B5/6821 , A61B5/6893 , A61B2503/22 , G06K9/00832 , G06K9/4633 , G08B21/06
摘要： A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye. The system also includes a video processor for processing the images generated with the video imaging camera. The processor includes an edge detector for detecting edges of the eye in the image and a line selector for generating substantially horizontal first and second lines representative of the detected edges. The processor determines the state of eye closure, such as eye open or eye closed, based on distance between the first and second lines. The system may be employed on a vehicle to determine the eye closure of a driver of the vehicle.
摘要翻译：提供了一种用于监视眼睛以确定眼睛闭合的系统和方法。该系统包括面向产生眼睛图像的视频成像相机。该系统还包括用于处理由视频成像相机产生的图像的视频处理器。处理器包括用于检测图像中眼睛的边缘的边缘检测器和用于产生代表检测到的边缘的基本水平的第一和第二线的线选择器。处理器基于第一和第二线之间的距离来确定眼睛闭合的状态，例如眼睛打开或眼睛闭合。该系统可以用在车辆上以确定车辆驾驶员的眼睛闭合。

3. 发明授权

US07742621B2 Dynamic eye tracking system 有权
标题翻译：动态眼动追踪系统
公开(公告)号：US07742621B2
公开(公告)日：2010-06-22
申请号：US11452116
申请日：2006-06-13
申请人： Riad I. Hammoud , Phillip V Malawey
发明人： Riad I. Hammoud , Phillip V Malawey
IPC分类号： G06K9/00
CPC分类号： A61B5/18 , A61B3/113 , G06F3/013 , G06K9/00604 , G06K9/00845 , G08B21/06
摘要： A dynamic eye tracking system to track movement of an eye including the steps of detecting if a neighbor exists about the eye over a predetermined amount of time and forming a boundary for the neighbor. Eye candidates are tracked and a determination is made if the eye candidates are beyond the boundary defined by the detected neighbor.
摘要翻译：一种用于跟踪眼睛移动的动态眼睛跟踪系统，包括在预定时间量内检测眼睛周围是否存在并形成邻居边界的步骤。眼睛候选者被跟踪，并且如果眼睛候选者超出被检测到的邻居限定的边界，则确定眼睛候选。

4. 发明授权

US07253738B2 System and method of detecting eye closure based on edge lines 有权
标题翻译：基于边缘线检测眼睑的系统和方法
公开(公告)号：US07253738B2
公开(公告)日：2007-08-07
申请号：US11077041
申请日：2005-03-10
申请人： Riad I. Hammoud , Phillip V. Malawey
发明人： Riad I. Hammoud , Phillip V. Malawey
IPC分类号： G08B23/00
CPC分类号： G06K9/00597 , G08B21/06
摘要： A system and method are provided for monitoring an eye to determine eye closure. The system includes a video imaging camera oriented to generate images of an eye, and a video processor for processing the images. The processor includes an edge detector for detecting edges of the eye in the image, and a line selector for generating a plurality of lines at multiple angles representative of the detected edges. The processor determines the state of eye closure, such as eye open or eye closed, based on the number of lines at selected angles. The system may be employed on a vehicle to determine the eye closure of a driver of the vehicle.
摘要翻译：提供了一种用于监视眼睛以确定眼睛闭合的系统和方法。该系统包括面向产生眼睛图像的视频成像摄像机和用于处理图像的视频处理器。处理器包括用于检测图像中的眼睛的边缘的边缘检测器，以及用于以表示检测到的边缘的多个角度生成多条线的线选择器。处理器基于所选择的角度的线数来确定眼睛闭合的状态，例如眼睛打开或眼睛闭合。该系统可以用在车辆上以确定车辆驾驶员的眼睛闭合。

5. 发明申请

US20070286457A1 Dynamic eye tracking system 有权
标题翻译：动态眼动追踪系统
公开(公告)号：US20070286457A1
公开(公告)日：2007-12-13
申请号：US11452116
申请日：2006-06-13
申请人： Riad I. Hammoud , Phillip V. Malawey
发明人： Riad I. Hammoud , Phillip V. Malawey
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： A61B5/18 , A61B3/113 , G06F3/013 , G06K9/00604 , G06K9/00845 , G08B21/06
摘要： A dynamic eye tracking system to track movement of an eye including the steps of detecting if a neighbor exists about the eye over a predetermined amount of time and forming a boundary for the neighbor. Eye candidates are tracked and a determination is made if the eye candidates are beyond the boundary defined by the detected neighbor.
摘要翻译：一种用于跟踪眼睛移动的动态眼睛跟踪系统，包括在预定时间量内检测眼睛周围是否存在并形成邻居边界的步骤。眼睛候选者被跟踪，并且如果眼睛候选者超出被检测到的邻居限定的边界，则确定眼睛候选。

6. 发明授权

US07370970B2 Eyeglass detection method 有权
标题翻译：眼镜检测方法
公开(公告)号：US07370970B2
公开(公告)日：2008-05-13
申请号：US11452669
申请日：2006-06-14
申请人： Riad I. Hammoud , Phillip V. Malawey
发明人： Riad I. Hammoud , Phillip V. Malawey
IPC分类号： A61B3/02
CPC分类号： G06K9/00604
摘要： The presence of eyeglasses worn by a human subject is detected regardless of whether the subject's head is viewed frontally or in profile. Image data within search windows defined relative to the subject's eye is processed to form linear representations of edge boundaries. Angles formed by intersections of the linear representations are determined and used as a basis for determining if eyeglass lenses are present. When prescribed eyeglass components are detected, the eye detection and tracking routines are configured accordingly.
摘要翻译：检测人类受试者穿戴的眼镜的存在，而不管受试者的头部是正面还是轮廓。处理相对于被摄体眼睛定义的搜索窗口内的图像数据，以形成边缘边界的线性表示。由线性表示的交点形成的角度被确定并用作确定是否存在眼镜镜片的基础。当检测到规定的眼镜组件时，相应地配置眼睛检测和跟踪程序。

7. 发明申请

US20070291231A1 Eyeglass detection method 有权
标题翻译：眼镜检测方法
公开(公告)号：US20070291231A1
公开(公告)日：2007-12-20
申请号：US11452669
申请日：2006-06-14
申请人： Riad I. Hammoud , Phillip V. Malawey
发明人： Riad I. Hammoud , Phillip V. Malawey
IPC分类号： A61B3/02
CPC分类号： G06K9/00604
摘要： The presence of eyeglasses worn by a human subject is detected regardless of whether the subject's head is viewed frontally or in profile. Image data within search windows defined relative to the subject's eye is processed to form linear representations of edge boundaries. Angles formed by intersections of the linear representations are determined and used as a basis for determining if eyeglass lenses are present. When prescribed eyeglass components are detected, the eye detection and tracking routines are configured accordingly.
摘要翻译：检测人类受试者穿戴的眼镜的存在，而不管受试者的头部是正面还是轮廓。处理相对于被摄体眼睛定义的搜索窗口内的图像数据，以形成边缘边界的线性表示。由线性表示的交点形成的角度被确定并用作确定是否存在眼镜镜片的基础。当检测到规定的眼镜组件时，相应地配置眼睛检测和跟踪程序。

8. 发明授权

US08102417B2 Eye closure recognition system and method 有权
标题翻译：闭眼识别系统及方法
公开(公告)号：US08102417B2
公开(公告)日：2012-01-24
申请号：US11586364
申请日：2006-10-25
申请人： Riad I. Hammoud , Andrew L. Wilhelm
发明人： Riad I. Hammoud , Andrew L. Wilhelm
IPC分类号： H04N5/253 , G06K9/00
CPC分类号： G06K9/00597 , G08B21/06
摘要： A system and method are provided for determining eye closure state of the eye of a subject. The system includes a video imaging camera oriented to generate images of an eye of a subject and a video processor for processing the images generated with the video imaging camera. The video processor is configured to detect an eye in the video images and determine whether the images of the eye are noisy. The video processor processes geometrical and statistical shape of the eye in the images if the eye is not noisy, and processes changes in the size of the eye over time if the images are noisy. The processor further determines eye closure state based on a ratio of horizontal to vertical dimensions.
摘要翻译：提供了一种系统和方法，用于确定对象的眼睛的闭眼状态。该系统包括面向用于生成被摄体的眼睛的图像的视频成像相机和用于处理由视频成像相机生成的图像的视频处理器。视频处理器被配置为检测视频图像中的眼睛并且确定眼睛的图像是否是嘈杂的。如果眼睛不嘈杂，则视频处理器处理图像中的眼睛的几何和统计形状，并且如果图像有噪声，则处理眼睛的尺寸随时间的变化。处理器进一步基于水平与垂直尺寸的比例来确定眼睛闭合状态。

9. 发明申请

US20070291983A1 Method of tracking a human eye in a video image 失效
标题翻译：在视频图像中跟踪人眼的方法
公开(公告)号：US20070291983A1
公开(公告)日：2007-12-20
申请号：US11452871
申请日：2006-06-14
申请人： Riad I. Hammoud
发明人： Riad I. Hammoud
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06K9/00604 , G06T7/20
摘要： A human eye is tracked between successively produced video image frames by consecutively applied eye location techniques. First, potential eye candidates within a local search window are identified using horizontal projection filtering, coupled with rudimentary appearance-based testing. The identified eye candidates are clustered and subjected to additional appearance-based testing to determine if one or more eye candidates should be accepted. If no eye candidates are accepted, a correlation/appearance technique is applied to the search window to identify the eye. If unsuccessful, the eye may be closed, and peripheral eye-related patches from the previous image frame are extracted and compared with the search window to identify the eye in the current frame. When comparable eye-related patches are identified in the search window for the current frame, the eye center is computed according to the mean of the eye periphery patches.
摘要翻译：通过连续应用的眼睛定位技术在连续产生的视频图像帧之间追踪人眼。首先，使用水平投影过滤，以及基于外观的基本测试，来识别局部搜索窗口内的潜在眼睛候选者。所识别的眼睛候选者被聚集并进行额外的基于外观的测试以确定是否应该接受一个或多个眼睛候选者。如果不接受眼睛候选者，则将相关/外观技术应用于搜索窗口以识别眼睛。如果不成功，则可以关闭眼睛，并且提取来自先前图像帧的外围眼睛相关的斑块，并与搜索窗口进行比较以识别当前帧中的眼睛。当在当前帧的搜索窗口中识别可比较的眼睛相关的斑块时，根据眼睛周边斑块的平均值来计算眼睛中心。

10. 发明授权

US07940962B2 System and method of awareness detection 有权
标题翻译：意识检测系统和方法
公开(公告)号：US07940962B2
公开(公告)日：2011-05-10
申请号：US11890066
申请日：2007-08-03
申请人： Riad I. Hammoud
发明人： Riad I. Hammoud
IPC分类号： G06K9/00
CPC分类号： G08B21/06 , G06K9/00335
摘要： An awareness detection system and method are provided. The system includes an imaging device positioned to obtain a plurality of images of at least a portion of a subject's head, and an awareness processor in communication with the imaging device. The awareness processor receives an image from the imaging device and performs the steps including conducting a two-point head pose analysis when two eyes of the subject are located, conducting a one-point head pose analysis when only one eye of the subject is located, and conducting a zero-point head pose analysis when zero eyes of the subject are located. The awareness processor further performs the steps of detecting at least one point of interest in the image, conducting a motion analysis of the image to estimate a head pose of the subject, and determining a state of awareness of the subject.
摘要翻译：提供了一种意识检测系统和方法。该系统包括被定位成获得被摄体头部的至少一部分的多个图像的成像装置和与成像装置通信的感知处理器。感知处理器从成像装置接收图像，并且执行包括在被摄体的两只眼睛所在的位置进行两点头部姿态分析的步骤，当只有一个对象的眼睛位于时进行一点头部姿势分析，并且当被摄体的零眼位于时，进行零点头姿势分析。感知处理器还执行以下步骤：检测图像中的至少一个兴趣点，进行图像的运动分析以估计对象的头部姿势，以及确定对象的意识状态。

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