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公开(公告)号：US09575155B2
公开(公告)日：2017-02-21
申请号：US14322818
申请日：2014-07-02
Applicant: Amazon Technologies, Inc.
Inventor： Andrew D. Price , Kah Kuen Fu , Kaixiang Hu
CPC classification number: G01S3/80 , G01S3/8083 , G01S5/0284 , G01S5/22
Abstract: The relative positions of two or more electronic devices can be determined utilizing ultrasonic beacons. Each device can have a unique signature that can be included in the beacon broadcast by that device. A device having an array of ultrasonic detectors can receive a beacon and correlate the beacon received at each detector. The time of arrival then can be used to determine the relative position of the source of the beacon. The signature in that beacon can also be used to determine the identity of the device that broadcast the beacon, in order to determine the identity of the device, or a user of that device, at the determined relative position. The devices can be configured to transmit signals over the air or through a specific transmission medium, such as propagating surface. Further, a dedicated detector array can be used for determining multiple relative positions.
Abstract translation: 可以使用超声波信标来确定两个或更多个电子设备的相对位置。 每个设备可以具有可被该设备广播的信标中包含的唯一签名。 具有超声波检测器阵列的装置可以接收信标并使在每个检测器处接收到的信标相关联。 到达时间可以用来确定信标源的相对位置。 该信标中的签名还可以用于确定广播信标的设备的身份，以便在所确定的相对位置处确定设备或该设备的用户的身份。 这些装置可被配置成通过空气或通过特定的传输介质（例如传播表面）传送信号。 此外，专用检测器阵列可用于确定多个相对位置。
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公开(公告)号：US09332189B2
公开(公告)日：2016-05-03
申请号：US14587830
申请日：2014-12-31
Applicant: Amazon Technologies, Inc.
Inventor： Francislav Petrov Penov , Aaron Michael Donsbach , Geoffrey Scott Heller , Kenneth Mark Karakotsios , Daniel Bibireata , Kah Kuen Fu , Richard Howard Suplee, III , Timothy Youngjin Sohn
CPC classification number: H04N5/23293 , G06K9/00208 , G06K9/2081 , G06K9/32 , G06K9/3216 , G06K9/6202 , G06Q30/0643
Abstract: A user attempting to obtain information about an object can capture image information including a view of that object, and the image information can be used with a matching or identification process to provide information about that type of object to the user. In order to narrow the search space to a specific category, and thus improve the accuracy of the results and the speed at which results can be obtained, the user can be guided to capture image information with an appropriate orientation. An outline or other graphical guide can be displayed over image information captured by a computing device, in order to guide the user in capturing the object from an appropriate direction and with an appropriate scale for the type of matching and/or information used for the matching. Such an approach enables three-dimensional objects to be analyzed using conventional two-dimensional identification algorithms, among other such processes.
Abstract translation: 尝试获取关于对象的信息的用户可以捕获包括该对象的视图的图像信息，并且图像信息可以与匹配或识别过程一起使用以向用户提供关于该类型的对象的信息。 为了将搜索空间缩小到特定类别，从而提高结果的准确性和可以获得结果的速度，可以引导用户以适当的方向捕获图像信息。 可以在由计算设备捕获的图像信息上显示概要或其他图形指南，以便引导用户从适当的方向捕获对象，并且以适当的比例为匹配和/或用于匹配的信息的类型 。 这样的方法使得能够使用传统的二维识别算法来分析三维对象，以及其他这样的过程。
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公开(公告)号：US20150116518A1
公开(公告)日：2015-04-30
申请号：US14585033
申请日：2014-12-29
Applicant: Amazon Technologies, Inc.
Inventor： Kah Kuen Fu , Kenneth Mark Karakotsios , Volodymyr V. Ivanchenko
IPC: H04N5/232
CPC classification number: H04N5/23264 , H04N5/23212 , H04N5/23232
Abstract: Image capture can be improved by capturing a sequence of images and analyzing the images to select the image with the least blur and/or an acceptable amount of blur. Gradients can be calculated for at least a portion of the images, and gradient histograms generated. Two or more component curves can be fit to each histogram, such as by using a Gaussian mixture model, and the curves can be compared to determine an amount of variation between the curves. The image with the smallest differences between component curves, or with differences less than a specified blur threshold, can be selected as a sufficiently sharp image and provided for viewing, processing, or another intended purpose of the image to be captured.
Abstract translation: 可以通过捕获图像序列并分析图像来选择具有最小模糊和/或可接受的模糊量的图像来改善图像捕获。 可以对图像的至少一部分计算渐变，并生成渐变直方图。 两个或多个分量曲线可以适合于每个直方图，例如通过使用高斯混合模型，并且可以比较曲线以确定曲线之间的变化量。 可以选择具有组分曲线之间最小差异或小于指定模糊阈值的差异的图像作为足够清晰的图像，并提供用于查看，处理或要捕获的图像的其他预期目的。
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公开(公告)号：US12205483B1
公开(公告)日：2025-01-21
申请号：US18341312
申请日：2023-06-26
Applicant: Amazon Technologies, Inc.
Inventor： Yibo Cao , Chong Huang , Dawei Li , Yang Liu , Kah Kuen Fu
IPC: G08G5/00 , B64U10/13 , B64U101/70
Abstract: An aerial vehicle is configured to calculate ranges to objects around the aerial vehicle when operating within indoor spaces, using a LIDAR sensor or another range sensor. The aerial vehicle calculates ranges within a plurality of sectors around the aerial vehicle and identifies a minimum distance measurement for each of the sectors. Sets of adjacent sectors having distance measurements above a threshold are identified, and bearings and minimum distance measurements of the sets of adjacent sectors are determined. When the aerial vehicle detects an object within a flight path, the aerial vehicle selects one of the sets of adjacent sectors based on the minimum distance measurements and executes a braking maneuver in a direction of the selected one of the sets of adjacent sectors.
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公开(公告)号：US09355301B2
公开(公告)日：2016-05-31
申请号：US14552378
申请日：2014-11-24
Applicant: Amazon Technologies, Inc.
Inventor： Kenneth M. Karakotsios , Kah Kuen Fu , Volodymyr V. Ivanchenko , Mingjing Huang
IPC: G06K9/00
CPC classification number: G06K9/00255 , G06K9/00228 , G06K9/0061
Abstract: The computational resources needed to perform processes such as image recognition can be reduced by determining appropriate frames of image information to use for the processing. In some embodiments, infrared imaging can be used to determine when a person is looking substantially towards a device, such that an image frame captured at that time will likely be adequate for facial recognition. In other embodiments, sound triangulation or motion sensing can be used to assist in determining which captured image frames to discard and which to select for processing based on any of a number of factors indicative of a proper frame for processing.
Abstract translation: 可以通过确定用于处理的图像信息的适当帧来减少执行诸如图像识别的处理所需的计算资源。 在一些实施例中，可以使用红外成像来确定人物何时基本上朝向设备观看，使得当时捕获的图像帧将可能足以用于面部识别。 在其他实施例中，可以使用声音三角测量或运动感测来基于指示用于处理的适当帧的多个因素中的任何一个来确定要丢弃哪个捕获的图像帧以及哪个被选择用于处理。
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Patent Agency Ranking
公开(公告)号：US20150362989A1
公开(公告)日：2015-12-17
申请号：US14307483
申请日：2014-06-17
Applicant: Amazon Technologies, Inc.
Inventor： Ambrish Tyagi , Kah Kuen Fu , Tianyang Ma , Kenneth Mark Karakotsios , Michael Lee Sandige , David Wayne Stafford , Steven Bennett
CPC classification number: G06F3/011 , G06F3/017 , G06K9/00255 , G06K9/00268 , G06K9/2018 , G06K9/2027 , G06K9/209 , G06K9/6201 , G06K9/6256 , G06K2009/00328 , H04N5/33 , H04N7/18
Abstract: Object tracking, such as may involve face tracking, can utilize different detection templates that can be trained using different data. A computing device can determine state information, such as the orientation of the device, an active illumination, or an active camera to select an appropriate template for detecting an object, such as a face, in a captured image. Information about the object, such as the age range or gender of a person, can also be used, if available, to select an appropriate template. In some embodiments instances of templates can be used to process various orientations, while in other embodiments specific orientations, such as upside down orientations, may not be processed for reasons such as rate of inaccuracies or infrequency of use for the corresponding additional resource overhead.
Abstract translation: 对象跟踪，例如可能涉及面部跟踪，可以利用可以使用不同数据进行训练的不同检测模板。 计算设备可以确定状态信息，诸如设备的方向，活动照明或活动照相机，以选择用于检测拍摄图像中的对象（例如脸部）的适当模板。 关于对象的信息，如人的年龄范围或性别，也可以使用（如果有的话）来选择适当的模板。 在一些实施例中，可以使用模板的实例来处理各种取向，而在其他实施例中，由于诸如对于相应的额外资源开销的使用的不准确率或不频率的原因，可能无法处理特定取向，例如上下取向。
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公开(公告)号：US09729792B2
公开(公告)日：2017-08-08
申请号：US14585033
申请日：2014-12-29
Applicant: Amazon Technologies, Inc.
Inventor： Kah Kuen Fu , Kenneth Mark Karakotsios , Volodymyr V. Ivanchenko
CPC classification number: H04N5/23264 , H04N5/23212 , H04N5/23232
Abstract: Image capture can be improved by capturing a sequence of images and analyzing the images to select the image with the least blur and/or an acceptable amount of blur. Gradients can be calculated for at least a portion of the images, and gradient histograms generated. Two or more component curves can be fit to each histogram, such as by using a Gaussian mixture model, and the curves can be compared to determine an amount of variation between the curves. The image with the smallest differences between component curves, or with differences less than a specified blur threshold, can be selected as a sufficiently sharp image and provided for viewing, processing, or another intended purpose of the image to be captured.
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公开(公告)号：US09652031B1
公开(公告)日：2017-05-16
申请号：US14306937
申请日：2014-06-17
Applicant: Amazon Technologies, Inc.
Inventor： Paul Aksenti Savastinuk , Jim Oommen Thomas , Geoffrey Scott Heller , Michael Lee Sandige , Kah Kuen Fu
IPC: G06F3/01
Abstract: A device configured with a user interface (UI) that changes based on a position of a user determines the position of the user through multiple data sources including camera based head tracking and output from motion sensors such as a gyroscope. Each data source may output its own estimated head position. The device may apply a reliability weight to the head position determined by each data source. A composite head position is then determined from the weighted position. The composite position is then used to render the UI.
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公开(公告)号：US20150078623A1
公开(公告)日：2015-03-19
申请号：US14552378
申请日：2014-11-24
Applicant: Amazon Technologies, Inc.
Inventor： KENNETH M. KARAKOTSIOS , Kah Kuen Fu , Volodymyr V. Ivanchenko , Mingjing Huang
IPC: G06K9/00
CPC classification number: G06K9/00255 , G06K9/00228 , G06K9/0061
Abstract: The computational resources needed to perform processes such as image recognition can be reduced by determining appropriate frames of image information to use for the processing. In some embodiments, infrared imaging can be used to determine when a person is looking substantially towards a device, such that an image frame captured at that time will likely be adequate for facial recognition. In other embodiments, sound triangulation or motion sensing can be used to assist in determining which captured image frames to discard and which to select for processing based on any of a number of factors indicative of a proper frame for processing.
Abstract translation: 可以通过确定用于处理的图像信息的适当帧来减少执行诸如图像识别的处理所需的计算资源。 在一些实施例中，可以使用红外成像来确定人物何时基本上朝向设备观看，使得当时捕获的图像帧将可能足以用于面部识别。 在其他实施例中，可以使用声音三角测量或运动感测来基于指示用于处理的适当帧的多个因素中的任何一个来确定要丢弃哪个捕获的图像帧以及哪个被选择用于处理。
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公开(公告)号：US12280889B1
公开(公告)日：2025-04-22
申请号：US17855071
申请日：2022-06-30
Applicant: Amazon Technologies, Inc.
Inventor： Chong Huang , Yibo Cao , Cheng Chen , Yang Liu , Kah Kuen Fu , Tianyang Ma
Abstract: An aerial vehicle is configured to operate within indoor spaces. The aerial vehicle is programmed with positions of waypoints within three-dimensional space, and to calculate a trajectory for traveling through such waypoints in a manner that minimizes snap of the aerial vehicle. Where a distance between a pair of the waypoints is sufficiently long, the aerial vehicle inserts intervening waypoints for planning purposes, and programs the aerial vehicle to travel at a maximum speed between the intervening waypoints. Upon detecting an obstacle with a first range using one or more sensors, the aerial vehicle reduces its speed and monitors a second, shorter range using the sensors, and compensates for motion between such readings.
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