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公开(公告)号：US20240177500A1
公开(公告)日：2024-05-30
申请号：US18436216
申请日：2024-02-08
IPC分类号： G06V20/59 , G06F18/22 , G06V10/141 , G06V10/143 , G06V10/147 , G06V10/60
CPC分类号： G06V20/59 , G06F18/22 , G06V10/141 , G06V10/143 , G06V10/147 , G06V10/60 , G06V20/597
摘要： A disclosed monitoring system includes infrared light sources that illuminate a subject in a sequenced manner and a camera that captures images of the subject during periods in which the subject is illuminated by one of the light sources. The system includes a processor that analyzes captured images to determine a brightness measure of the images, and a controller controls output power of the infrared light sources in response to the brightness measure. In response to the processor detecting a brightness measure below a predetermined brightness threshold, the controller is configured to switch off or reduce an output illumination intensity of one of the infrared light sources. A disclosed method further determines whether an emission source is occluded by modulating an intensity of an electromagnetic emission source, detecting whether the modulation pattern is present in captured images, and determining that the emission source is occluded based on the detected modulation.
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公开(公告)号：US10726576B2
公开(公告)日：2020-07-28
申请号：US16312458
申请日：2017-06-29
摘要： A method includes capturing images of a vehicle driver's face from a driver facing camera and images of a forward road scene from a forward facing camera. The images are analyzed to derive gaze direction data in a vehicle frame of reference. The gaze direction data are statistically collated to determine a frequency distribution of gaze angles. One or more peaks in the frequency distribution are identified and associated with corresponding reference points in the images to determine one or more reference gaze positions in the vehicle frame of reference. The one or more reference gaze positions are correlated with a position of the reference points in a forward facing camera frame of reference to determine a camera pose of a forward facing camera in the vehicle frame of reference.
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公开(公告)号：US11455810B2
公开(公告)日：2022-09-27
申请号：US17280591
申请日：2019-09-30
摘要： A disclosed system is configured to estimate an attention state of a subject within a scene. An imaging camera captures digital images of the subject and one or more light sources illuminate the subject during a period in which the digital images are captured. The system also includes a processor that processes the captured images to generate subject attention data of the subject. The processor further generates a primary visual attention ray of the subject from current subject attention data; generates a distribution of visual attention rays having an origin common to the primary visual attention ray; projects the visual attention rays onto a digital representation of the scene having a plurality of predefined regions of interest; determines an intersection of the projected visual attention rays with one or more of the regions of interest; and based on the intersection, estimates an attention state of the subject's attention.
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公开(公告)号：US11223381B2
公开(公告)日：2022-01-11
申请号：US15550917
申请日：2016-01-12
IPC分类号： H04B1/00 , H04B1/3877 , H04M1/04 , B60R11/04 , H04M1/64 , H04M1/72409 , H04M1/72463 , H04M1/02 , G06K9/00 , G06K9/20 , G08B21/06 , H04M1/60 , H04N5/77
摘要： Described herein is a mount (1) for supporting a mobile device (3) having a wireless transceiver (60) within a vehicle (5) having a driver. The mount (1) includes a body (7) having a supporting formation (9) adapted to releasably support the mobile device (3) in a supported operative position within the vehicle (5). The mount (1) also includes an electrical interface (25) for connecting to an external power source, the interface (25) being positioned to engage a complementary electrical port (27) of the mobile device (3) when the mobile device (3) is in the operative position to supply power to the mobile device (3). The mount (1) and the mobile device (3) collectively define an illumination device (29, 31) and a first camera (33) that cooperate to obtain predetermined performance information about the driver.
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公开(公告)号：US11017558B2
公开(公告)日：2021-05-25
申请号：US16313317
申请日：2017-06-29
摘要： Described herein is a method of registering a position and an orientation of one or more cameras in a camera imaging system. The method includes: receiving, from a depth imaging device, data indicative of a three dimensional image of the scene. The three dimensional image is calibrated with a reference frame relative to the scene. The reference frame includes a reference position and reference orientation. A three dimensional position of each of the cameras within the three dimensional image is determined relative to the reference frame. An orientation of each camera is determined to relative to the reference frame. The position and orientation of each camera is combined to determine a camera pose relative to the reference frame.
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公开(公告)号：US10909721B2
公开(公告)日：2021-02-02
申请号：US16311471
申请日：2017-06-29
摘要： Described herein are systems and methods of determining a pose of a camera within a vehicle scene. In one embodiment, a method includes the initial step of capturing an image of the vehicle scene from the camera. At step, reference data indicative of the vehicle scene is loaded, the reference data includes positions and orientations of known features within the vehicle scene. Next, at step, the geometric appearance of one or more of the known features is identified within the image. Finally, at step, the three dimensional position and orientation of the camera relative to the known features identified in step c) is determined from the geometric appearance, and a pose of the camera within the vehicle scene is calculated.
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公开(公告)号：US20190206084A1
公开(公告)日：2019-07-04
申请号：US16311471
申请日：2017-06-29
CPC分类号： G06T7/74 , G06K9/00604 , G06K9/00845 , G06T7/60 , G06T7/73 , G06T7/80 , G06T2207/20081 , G06T2207/30244 , G06T2207/30252 , G06T2207/30268
摘要： Described herein are systems and methods of determining a pose of a camera within a vehicle scene. In one embodiment, a method includes the initial step of capturing an image of the vehicle scene from the camera. At step, reference data indicative of the vehicle scene is loaded, the reference data includes positions and orientations of known features within the vehicle scene. Next, at step, the geometric appearance of one or more of the known features is identified within the image. Finally, at step, the three dimensional position and orientation of the camera relative to the known features identified in step c) is determined from the geometric appearance, and a pose of the camera within the vehicle scene is calculated.
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公开(公告)号：US20190164310A1
公开(公告)日：2019-05-30
申请号：US16313317
申请日：2017-06-29
摘要： Described herein is a method of registering a position and an orientation of one or more cameras in a camera imaging system. The method includes: receiving, from a depth imaging device, data indicative of a three dimensional image of the scene. The three dimensional image is calibrated with a reference frame relative to the scene. The reference frame includes a reference position and reference orientation. A three dimensional position of each of the cameras within the three dimensional image is determined relative to the reference frame. An orientation of each camera is determined to relative to the reference frame. The position and orientation of each camera is combined to determine a camera pose relative to the reference frame.
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公开(公告)号：US20180026669A1
公开(公告)日：2018-01-25
申请号：US15550917
申请日：2016-01-12
CPC分类号： H04B1/3877 , B60R11/04 , G06K9/00288 , G06K9/00805 , G06K9/00845 , G06K9/2027 , G08B21/06 , H04M1/0264 , H04M1/04 , H04M1/6075 , H04M1/64 , H04M1/72527 , H04M1/72577 , H04M2250/10 , H04M2250/52 , H04N5/77
摘要： Described herein is a mount (1) for supporting a mobile device (3) having a wireless transceiver (60) within a vehicle (5) having a driver. The mount (1) includes a body (7) having a supporting formation (9) adapted to releasably support the mobile device (3) in a supported operative position within the vehicle (5). The mount (1) also includes an electrical interface (25) for connecting to an external power source, the interface (25) being positioned to engage a complementary electrical port (27) of the mobile device (3) when the mobile device (3) is in the operative position to supply power to the mobile device (3). The mount (1) and the mobile device (3) collectively define an illumination device (29, 31) and a first camera (33) that cooperate to obtain predetermined performance information about the driver.
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公开(公告)号：US11941894B2
公开(公告)日：2024-03-26
申请号：US17048894
申请日：2019-04-18
IPC分类号： G06V20/00 , G06F18/22 , G06V10/141 , G06V10/143 , G06V10/147 , G06V10/60 , G06V20/59
CPC分类号： G06V20/59 , G06F18/22 , G06V10/141 , G06V10/143 , G06V10/147 , G06V10/60 , G06V20/597
摘要： A disclosed monitoring system includes infrared light sources that illuminate a subject in a sequenced manner and a camera that captures images of the subject during periods in which the subject is illuminated by one of the light sources. The system includes a processor that analyzes captured images to determine a brightness measure of the images, and a controller controls output power of the infrared light sources in response to the brightness measure. In response to the processor detecting a brightness measure below a predetermined brightness threshold, the controller is configured to switch off or reduce an output illumination intensity of one of the infrared light sources. A disclosed method further determines whether an emission source is occluded by modulating an intensity of an electromagnetic emission source, detecting whether the modulation pattern is present in captured images, and determining that the emission source is occluded based on the detected modulation.
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