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公开(公告)号：US10248194B2
公开(公告)日：2019-04-02
申请号：US15142165
申请日：2016-04-29
发明人： Tristan Swedish , Karin Roesch , Ramesh Raskar
摘要： A video camera captures images of retroreflection from the retina of an eye. These images are captured while the eye rotates. Thus, different images are captured in different rotational positions of the eye. A computer calculates, for each image, the eye's direction of gaze. In turn, the direction of gaze is used to calculate the precise location of a small region of the retina at which the retroflection occurs. A computer calculates a digital image of a portion of the retina by summing data from multiple retroreflection images. The digital image of the retina may be used for many practical applications, including medical diagnosis and biometric identification. In some scenarios, the video camera captures detailed images of the retina of a subject, while the subject is so far away that the rest of the subject's face is below the diffraction limit of the camera.
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公开(公告)号：US20190187788A1
公开(公告)日：2019-06-20
申请号：US16278100
申请日：2019-02-17
发明人： Tristan Swedish , Karin Roesch , Ramesh Raskar
CPC分类号： G06F3/013 , G06F3/005 , G06K9/00604
摘要： A video camera captures images of retroreflection from the retina of an eye. These images are captured while the eye rotates. Thus, different images are captured in different rotational positions of the eye. A computer calculates, for each image, the eye's direction of gaze. In turn, the direction of gaze is used to calculate the precise location of a small region of the retina at which the retroflection occurs. A computer calculates a digital image of a portion of the retina by summing data from multiple retroreflection images. The digital image of the retina may be used for many practical applications, including medical diagnosis and biometric identification. In some scenarios, the video camera captures detailed images of the retina of a subject, while the subject is so far away that the rest of the subject's face is below the diffraction limit of the camera.
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公开(公告)号：US20160320837A1
公开(公告)日：2016-11-03
申请号：US15142165
申请日：2016-04-29
发明人： Tristan Swedish , Karin Roesch , Ramesh Raskar
CPC分类号： G06F3/013 , G06F3/005 , G06K9/00604
摘要： A video camera captures images of retroreflection from the retina of an eye. These images are captured while the eye rotates. Thus, different images are captured in different rotational positions of the eye. A computer calculates, for each image, the eye's direction of gaze. In turn, the direction of gaze is used to calculate the precise location of a small region of the retina at which the retroflection occurs. A computer calculates a digital image of a portion of the retina by summing data from multiple retroreflection images. The digital image of the retina may be used for many practical applications, including medical diagnosis and biometric identification. In some scenarios, the video camera captures detailed images of the retina of a subject, while the subject is so far away that the rest of the subject's face is below the diffraction limit of the camera.
摘要翻译： 视频摄像机从眼睛的视网膜拍摄回射的图像。 这些图像在眼睛旋转时被捕获。 因此，在眼睛的不同旋转位置捕获不同的图像。 计算机为每个图像计算眼睛的注视方向。 反过来，注视的方向用于计算出现逆行的视网膜的小区域的精确位置。 计算机通过对来自多个回射图像的数据求和来计算视网膜的一部分的数字图像。 视网膜的数字图像可用于许多实际应用，包括医学诊断和生物识别。 在某些情况下，摄像机会拍摄被摄物体的视网膜的详细图像，而拍摄对象距离较远，受试者脸部的其余部分低于摄像机的衍射极限。
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公开(公告)号：US10802583B2
公开(公告)日：2020-10-13
申请号：US16278100
申请日：2019-02-17
发明人： Tristan Swedish , Karin Roesch , Ramesh Raskar
摘要： A video camera captures images of retroreflection from the retina of an eye. These images are captured while the eye rotates. Thus, different images are captured in different rotational positions of the eye. A computer calculates, for each image, the eye's direction of gaze. In turn, the direction of gaze is used to calculate the precise location of a small region of the retina at which the retroflection occurs. A computer calculates a digital image of a portion of the retina by summing data from multiple retroreflection images. The digital image of the retina may be used for many practical applications, including medical diagnosis and biometric identification. In some scenarios, the video camera captures detailed images of the retina of a subject, while the subject is so far away that the rest of the subject's face is below the diffraction limit of the camera.
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公开(公告)号：US09662014B2
公开(公告)日：2017-05-30
申请号：US15099270
申请日：2016-04-14
发明人： Tristan Swedish , Karin Roesch , Ramesh Raskar
CPC分类号： A61B3/152 , A61B3/0025 , A61B3/0033 , A61B3/0041 , A61B3/0091 , A61B3/12
摘要： A retinal imaging device includes a camera, a light source, a projector, an I/O device and a computer. The projector emits two sets of light rays, such that one set of rays lies on an exterior surface of a first cone, and the other set of rays lie on an exterior surface of a second cone. The user adjusts the position of his or her eye relative to the camera, until the rays form a full, undistorted target image on the retina. This full, undistorted image is only seen when the pupil of the eye is positioned in the intersection of the first and second cones, and the eye is thus aligned with the camera. The user provides input, via the I/O device, that the user is seeing this image. The computer then instructs the camera to capture retinal images and the light source to simultaneously illuminate the retina.
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公开(公告)号：US20160302665A1
公开(公告)日：2016-10-20
申请号：US15099270
申请日：2016-04-14
发明人： Tristan Swedish , Karin Roesch , Ramesh Raskar
CPC分类号： A61B3/152 , A61B3/0025 , A61B3/0033 , A61B3/0041 , A61B3/0091 , A61B3/12
摘要： A retinal imaging device includes a camera, a light source, a projector, an I/O device and a computer. The projector emits two sets of light rays, such that one set of rays lies on an exterior surface of a first cone, and the other set of rays lie on an exterior surface of a second cone. The user adjusts the position of his or her eye relative to the camera, until the rays form a full, undistorted target image on the retina. This full, undistorted image is only seen when the pupil of the eye is positioned in the intersection of the first and second cones, and the eye is thus aligned with the camera. The user provides input, via the I/O device, that the user is seeing this image. The computer then instructs the camera to capture retinal images and the light source to simultaneously illuminate the retina.
摘要翻译： 视网膜成像装置包括相机，光源，投影仪，I / O装置和计算机。 投影仪发射两组光线，使得一组光线位于第一锥体的外表面上，另一组光线位于第二锥体的外表面上。 使用者调整他或她的眼睛相对于照相机的位置，直到光线在视网膜上形成一个完整的，未失真的目标图像。 仅当眼睛的瞳孔位于第一和第二锥体的交叉点中时，才能看到这个完整的未失真的图像，因此眼睛与相机对准。 用户通过I / O设备提供用户看到此图像的输入。 然后，计算机指示相机捕获视网膜图像和光源以同时照亮视网膜。
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