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公开(公告)号：US10393821B2
公开(公告)日：2019-08-27
申请号：US15472639
申请日：2017-03-29
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Benjamin Martin Schweitzer
IPC: G01R31/392 , G01R31/382 , G06T7/70 , G01B11/06 , H04N7/18 , H01M10/48 , B60L58/16 , B60L58/12 , B60L58/21 , B60L58/22 , B60L50/60 , H01M2/10
Abstract: Systems and corresponding methods for optical monitoring of a state of charge or a state of health of a battery are described. For example, the battery monitoring system may include an imaging device that captures images of cells of the battery and determines states of charge of the cells based on observed dimensional changes over time, e.g., relative to reference markers. The observed dimensional changes may also be corrected for dimensional changes due to thermal strain. In addition, states of health of individual cells of the battery may be determined by comparing the dimensional changes of each of the cells over time. Further, the images may be captured at various frequencies, e.g., based on an expected operational duration of the battery and/or based on a current state of charge or state of health.
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公开(公告)号：US10281916B1
公开(公告)日：2019-05-07
申请号：US15272152
申请日：2016-09-21
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Sarah Graber , Joshua John Watson , Scott Michael Wilcox
Abstract: A method, device, and system for detecting transparent elements in a vehicle environment are described. In some examples, this may include accessing an image of a scene captured by an image capture device attached to a vehicle. A reflected image present in the image may be detected. The reflected image may include a portion of the vehicle. It may be determined that the scene includes a transparent element based at least in part on detecting the reflected image present in the image.
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公开(公告)号：US10573024B1
公开(公告)日：2020-02-25
申请号：US15243768
申请日：2016-08-22
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Scott Michael Wilcox
Abstract: Described herein are systems and methods of determining a distance between an object depicted in an image and an imaging device that captured that image. In particular, the disclosure discusses that an image may be separated into multiple derivative images, each of which is associated with a different wavelength of light. In some embodiments, an image may be separated into images associated with wavelengths of primary colors (e.g., red, green, and blue). Once separate images have been created, a sharpness value may be determined for each image. A distance between the object and the imaging device may then be calculated based on sharpness values associated with each of the separate images.
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公开(公告)号：US10176722B1
公开(公告)日：2019-01-08
申请号：US15250806
申请日：2016-08-29
Applicant: Amazon Technologies, Inc.
Inventor： Scott Patrick Boyd , Chengwu Cui , Sarah Graber , Barry James O'Brien , Joshua John Watson , Scott Michael Wilcox
Abstract: A location marker that may be used to provide information to a vehicle, such as an unmanned aerial vehicle (UAV). The location marker may include a plurality of lights that may be individually sequenced on and off at different times to create a time domain signal sequence that is readable by the vehicle. The lights may provide information in various different ways. The specific lights that are illuminated at a certain time may form a light pattern that includes or is associated with information. Different light patterns may be displayed over time to provide different information to the vehicle. In some embodiments, the amount of time that a light is on or off (or both) may provide information as a time domain signal sequence (e.g., flashing lights) to the vehicle. In various embodiments, the location marker may include retroreflectors arranged in a pattern used to identify the location marker.
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公开(公告)号：US20180284197A1
公开(公告)日：2018-10-04
申请号：US15472639
申请日：2017-03-29
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Benjamin Martin Schweitzer
CPC classification number: G01R31/392 , B60L50/66 , B60L58/12 , B60L58/16 , B60L58/21 , B60L58/22 , B60L2240/545 , G01B11/0608 , G01R31/382 , G06T7/70 , G06T2207/30204 , H01M2/1077 , H01M10/482 , H01M10/486 , H01M2220/20 , H04N7/183 , Y02T10/7005 , Y02T10/7044 , Y02T10/7061
Abstract: Systems and corresponding methods for optical monitoring of a state of charge or a state of health of a battery are described. For example, the battery monitoring system may include an imaging device that captures images of cells of the battery and determines states of charge of the cells based on observed dimensional changes over time, e.g., relative to reference markers. The observed dimensional changes may also be corrected for dimensional changes due to thermal strain. In addition, states of health of individual cells of the battery may be determined by comparing the dimensional changes of each of the cells over time. Further, the images may be captured at various frequencies, e.g., based on an expected operational duration of the battery and/or based on a current state of charge or state of health.
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Patent Agency Ranking
公开(公告)号：US10032384B1
公开(公告)日：2018-07-24
申请号：US15250778
申请日：2016-08-29
Applicant: Amazon Technologies, Inc.
Inventor： Scott Patrick Boyd , Chengwu Cui , Sarah Graber , Barry James O'Brien , Joshua John Watson , Scott Michael Wilcox
Abstract: A location marker that may be used to provide information to a vehicle, such as an unmanned aerial vehicle (UAV). The location marker may include a plurality of retroreflectors that may form a pattern readable by a vehicle or other device. The pattern may be read to extract an identifier of a location, such as an address or an identifier of a person. A global positioning system (GPS) device may transmit a general location of the location marker to the vehicle, while the location marker may provide a unique visual location identifier to a device within visual range of the location marker. In some embodiments, the location marker may also include lights that may be individually sequenced on and off at different times to create a time domain signal sequence that is readable by the vehicle.
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公开(公告)号：US11073829B1
公开(公告)日：2021-07-27
申请号：US16297322
申请日：2019-03-08
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Sarah Graber , Joshua John Watson , Scott Michael Wilcox
Abstract: A system for detecting transparent elements in a vehicle environment are described. In some examples, this may include accessing an image of a scene captured by an image capture device attached to a vehicle. A reflected image present in the image may be detected. The reflected image may include a portion of the vehicle. It may be determined that the scene includes a transparent element based at least in part on detecting the reflected image present in the image.
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公开(公告)号：US10538326B1
公开(公告)日：2020-01-21
申请号：US15253339
申请日：2016-08-31
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Barry James O'Brien , Joshua John Watson
Abstract: This disclosure is directed to monitoring exposure levels for individual cameras of a stereo camera system to reduce unwanted lens flaring which may disrupt stereo vision capabilities of an unmanned aerial vehicle (UAV). The UAV may identify lens flaring by monitoring histogram data received from the cameras and then mitigate the lens flaring by performing aerial maneuvers with respect to the light source and/or moving camera componentry such as deploying a lens hood. The UAV may also identify lens flaring patterns that on a camera's sensor and determine a location of a peripheral light source based on these patterns. The UAV may then deploy a visor between the location of the peripheral light source and the cameras.
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公开(公告)号：US10182225B1
公开(公告)日：2019-01-15
申请号：US15253602
申请日：2016-08-31
Applicant: Amazon Technologies, Inc.
Inventor： Chengwu Cui , Barry James O'Brien , Joshua John Watson
Abstract: Images captured by a camera system can be processed to detect precipitation in one or more of the images, and to generate a reconstructed image(s) without the precipitation, or with a reduced amount of the precipitation. Detection of precipitation can be based on a difference between a first feature in a first image and a second feature in a second image that corresponds to the first feature, where the first and second images were captured by different cameras at different times. A determination as to whether precipitation is present in the first image and the second image can be based at least in part on a disparity between the first feature and the second feature.
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公开(公告)号：US10121117B1
公开(公告)日：2018-11-06
申请号：US15260057
申请日：2016-09-08
Applicant: Amazon Technologies, Inc.
Inventor： Scott Patrick Boyd , Chengwu Cui , Sarah Graber , Barry James O'Brien , Joshua John Watson , Scott Michael Wilcox
Abstract: Techniques for providing a verification of a flight path or landing zone may be provided. For example, during delivery an unmanned aerial vehicle (UAV) may capture one or more images of a plurality of delivery locations within an area. A computer system may generate one or more image templates or filters using the one or more images and subsequently use the image filters to verify a flight path or landing zone for a delivery by the UAV during flight.
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