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公开(公告)号:US10402996B2
公开(公告)日:2019-09-03
申请号:US15705347
申请日:2017-09-15
发明人: Hao-Yuan Kuo , Chia-Hui Han , Wei-Po Lin
IPC分类号: G06T7/60 , G01B11/00 , G01B11/14 , A61B3/00 , A61B3/11 , A61B5/00 , A61B5/107 , G01B11/245 , G06T7/593 , G06T7/62 , H04N5/33
摘要: A distance measuring device for human body features is provided. The device comprises: an image capturing unit configured to capture a plurality of groups of human images of at least one part of human body in a time interval; an image processing unit configured to analyze to recognize a plurality of feature points in each group of the human images to generate three-dimensional coordinates for each feature point; and a processing unit configured to calculate a distance between a first feature point and a second feature point, calculate a deflection angle for each group of the human images, and generate a weight value. The processing unit has a weighted average calculation based on the weight values and the distances to generate a measurement result.
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82.
公开(公告)号:US10401625B2
公开(公告)日:2019-09-03
申请号:US15391204
申请日:2016-12-27
IPC分类号: G02B27/00 , G02B27/01 , G06F3/13 , G06K9/00 , A61B3/11 , G06T7/70 , H04N5/225 , A61B3/15 , G06T7/586
摘要: A virtual reality headset includes multiple illumination sources emitting light towards a user's eye and an image capture device capturing light reflected by the user's eye. The image capture device captures images of light from the illumination sources reflected by the user's corneas when the user looks at a specific location in the virtual reality headset. Based on locations of light having at least a threshold intensity in the captured images, the position of the center of user's eye's pupil is determined in three dimensions and used to determine a distance between the center of user's eye's pupil and a reference point relative to the illumination sources. Distances between centers of pupils of the user's eyes and reference points are used to determine a distance between the centers of the pupils of the user's eyes and a distance from the corneas to an optical system of the headset.
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公开(公告)号:US10399575B2
公开(公告)日:2019-09-03
申请号:US15541458
申请日:2016-01-11
IPC分类号: B60K28/02 , B60K28/06 , G01C21/36 , A61B5/18 , A61B5/024 , A61B5/053 , G08G1/0968 , B60W50/00 , A61B5/0205 , A61B5/00 , A61B3/11 , G08G1/04 , G08G1/16 , B60W50/14
摘要: In one embodiment, a cognitive load driving assistant increases driving safety based on cognitive loads. In operation, the cognitive load driving assistant computes a current cognitive load of a driver based on sensor data. If the current cognitive load exceeds a threshold cognitive load, then the cognitive load driving assistant modifies the driving environment to reduce the cognitive load required to perform the primary driving task and/secondary task(s), such as texting via a cellular phone. The cognitive load driving assistant may modify the driving environment indirectly via sensory feedback to the driver or directly through reducing the complexity of the primary driving task and/or secondary tasks. In particular, if the driver is exhibiting elevated cognitive loads typically associated with distracted driving, then the cognitive load driving assistant modifies the driving environment to allow the driver to devote appropriate mental resources to the primary driving task, thereby increasing driving safety.
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公开(公告)号:US10398304B2
公开(公告)日:2019-09-03
申请号:US15903919
申请日:2018-02-23
申请人: Opternative, Inc.
发明人: Steven P. Lee
IPC分类号: A61B3/02 , A61B3/032 , A61B3/036 , A61B3/00 , A61B3/103 , A61B3/11 , G02C13/00 , A61B3/024 , A61B3/107 , A61B3/14 , A61B3/18 , A61B5/00
摘要: The present disclosure relates generally to systems and method for testing and determining corrective lens prescription for a patient. In an example embodiment, a method includes using a hand-portable first electronic device, a second electronic device with a computerized screen, and a server to conduct a vision test for a person. The vision test includes determining, an axis prescription, a cylinder prescription, and a sphere prescription for each eye of the person. A corrective lens prescription is provided for the person based, at least in part, on the determined axis, cylinder, and sphere prescription for each eye of the person.
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公开(公告)号:US10390802B1
公开(公告)日:2019-08-27
申请号:US15209664
申请日:2016-07-13
摘要: A system and software application are disclosed for detecting impairment of person under the influence of drugs and/or alcohol. The system may scan the person's eye(s) and measure the pupil for excessive dilation. The system may also record eye movement and check for nystagmus of the eye that indicates the person is under the influence of alcohol.
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公开(公告)号:US10380531B2
公开(公告)日:2019-08-13
申请号:US14879240
申请日:2015-10-09
摘要: An aspect includes receiving a request to assign a task to a user based on biometric data. Correlated data that correlates characteristics of tasks previously performed by the user with observed productivity and stress levels of the user while performing the tasks is accessed. An optimization model is applied to select a task that maximizes a predicted productivity of the user in performing the task while at the same time minimizes a predicted negative stress level of the user while performing the task. Input to the optimization model includes the correlated data and characteristics of a plurality of potential tasks. The selected task is assigned to the user. The correlated data for the user is updated based on the observed productivity of the user in performing the selected task, the observed stress level of the user while performing the selected tax, and at least one characteristic of the selected task.
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公开(公告)号:US10380530B2
公开(公告)日:2019-08-13
申请号:US14821978
申请日:2015-08-10
摘要: An aspect includes receiving a request to assign a task to a user based on biometric data. Correlated data that correlates characteristics of tasks previously performed by the user with observed productivity and stress levels of the user while performing the tasks is accessed. An optimization model is applied to select a task that maximizes a predicted productivity of the user in performing the task while at the same time minimizes a predicted negative stress level of the user while performing the task. Input to the optimization model includes the correlated data and characteristics of a plurality of potential tasks. The selected task is assigned to the user. The correlated data for the user is updated based on the observed productivity of the user in performing the selected task, the observed stress level of the user while performing the selected tax, and at least one characteristic of the selected task.
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88.
公开(公告)号:US20190243448A1
公开(公告)日:2019-08-08
申请号:US16250931
申请日:2019-01-17
申请人: Magic Leap, Inc.
发明人: Samuel A. Miller , Lomesh Agarwal , Lionel Ernest Edwin , Ivan Li Chuen Yeoh , Daniel Farmer , Sergey Fyodorovich Prokushkin , Yonatan Munk , Edward Joseph Selker , Bradley Vincent Stuart
CPC分类号: G06F3/013 , A61B3/111 , A61B3/113 , G06K9/0061 , G06K9/4661 , G06K9/52 , G06K2009/4666 , G06T3/40
摘要: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system images the user's eye and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye. The display system may render virtual image content with a render camera positioned at the determined position of the center of rotation of said eye.
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公开(公告)号:US20190200862A1
公开(公告)日:2019-07-04
申请号:US16351326
申请日:2019-03-12
申请人: Wesley W.O. Krueger
发明人: Wesley W.O. Krueger
IPC分类号: A61B3/18 , A61B5/11 , A61B5/00 , A61B3/113 , A61B3/028 , A61B3/11 , A42B3/20 , A63B71/10 , A42B3/04
CPC分类号: A61B3/113 , A42B3/0433 , A42B3/20 , A61B3/0041 , A61B3/028 , A61B3/032 , A61B3/112 , A61B3/145 , A61B3/158 , A61B3/18 , A61B5/1103 , A61B5/1121 , A61B5/4076 , A61B5/6803 , A61B5/6814 , A61B2560/0223 , A61B2562/0219 , A61B2562/0223 , A61B2562/028 , A63B71/10
摘要: A system or method for measuring human ocular performance can be implemented using an eye sensor, a head orientation sensor, and an electronic circuit. The device is configured for measuring vestibulo-ocular reflex, pupillometry, saccades, visual pursuit tracking, vergence, eyelid closure, dynamic visual acuity, retinal image stability, foveal fixation stability, focused position of the eyes or visual fixation of the eyes at any given moment and nystagmus. The eye sensor comprises a video camera that senses vertical movement and horizontal movement of at least one eye. The head orientation sensor senses pitch and yaw in the range of frequencies between 0.01 Hertz and 15 Hertz. The system is implemented as part of a faceguard.
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公开(公告)号:US20190196582A1
公开(公告)日:2019-06-27
申请号:US16287440
申请日:2019-02-27
发明人: Caleb J. Siefert
CPC分类号: G06F3/013 , A61B3/112 , A61B5/0205 , A61B5/024 , A61B5/0531 , A61B5/0816 , A61B5/162 , A61B5/165 , G06F19/36 , G06K9/00892 , G09B5/065 , G09B5/10 , G09B7/073 , G16H10/20
摘要: The present disclosure relates to biologically and behaviorally based methods of measuring audience response to a short stimulus.
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