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公开(公告)号：US12047756B1
公开(公告)日：2024-07-23
申请号：US17722680
申请日：2022-04-18
Applicant: Amazon Technologies, Inc.
Inventor： Samuel Henry Chang , Wai Chung Chu
CPC classification number: H04R3/005 , H04R1/406 , H04R2201/403 , H04R2430/20
Abstract: A system efficiently selects at least one device from multiple devices based on received audio signals. In some instances, the system receives audio signals from devices that each comprise at least one microphone. A respective audio signal of the audio signals includes a representation of a sound originating from a location. The system then determines a device to be used to respond to the sound. In some instances, the system analyzes times in which the received audio signals that represent the sound are generated and/or volumes of the sound as represented by the received audio signals. The system can then select the device based on the analysis.
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公开(公告)号：US09703371B1
公开(公告)日：2017-07-11
申请号：US14753745
申请日：2015-06-29
Applicant: Amazon Technologies, Inc.
Inventor： Ning Yao , Samuel Henry Chang
CPC classification number: G06F3/011 , G06F3/017 , G06F3/0304
Abstract: A virtual user interface in a 3D environment is projected onto a display object, such as an open hand. An operating object, such as a stylus or a second hand with an index finger extended, may be used to select input features of the projected user interface. In one scenario, for example, a telephone keypad may be projected onto the open hand and the index finger may be used to select a particular number on the keypad. Images of the hands may be segmented to produce contours of the finger and open hand, and these contours are used to determine the location of the finger relative to the open hand.
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公开(公告)号：US09390500B1
公开(公告)日：2016-07-12
申请号：US13830564
申请日：2013-03-14
Applicant: Amazon Technologies, Inc.
Inventor： Samuel Henry Chang , Ning Yao
CPC classification number: G06T7/004 , G06F3/011 , G06F3/017 , G06F3/0304 , G06F2203/012 , G06K9/00355 , G06K9/00389 , G06K9/48
Abstract: A number of images of an environment may be obtained over time by a number of sensors. The data obtained by the sensors may be used to generate contours of objects in the environment. In some cases, hands with pointing fingers in the environment may be identified based on the contours of the objects in the environment. In particular, contours having a palm segment and a pointing finger segment may be identified as hands with pointing fingers. In an implementation, 1-dimensional curvature and distance information may be used to identify contours having a palm segment and a pointing finger segment.
Abstract translation: 可以通过多个传感器随时间获得许多环境的图像。 由传感器获得的数据可用于产生环境中物体的轮廓。 在某些情况下，可以根据环境中物体的轮廓来识别手指在环境中的手指。 特别地，具有手掌区段和指向手指区段的轮廓可以被识别为具有指状指的手。 在一个实现中，可以使用一维曲率和距离信息来识别具有手掌区段和指点手指区段的轮廓。
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Patent Agency Ranking
公开(公告)号：US11317201B1
公开(公告)日：2022-04-26
申请号：US15418973
申请日：2017-01-30
Applicant: Amazon Technologies, Inc.
Inventor： Samuel Henry Chang , Wai Chung Chu
Abstract: A system efficiently selects at least one device from multiple devices based on received audio signals. In some instances, the system receives audio signals from devices that each comprise at least one microphone. A respective audio signal of the audio signals includes a representation of a sound originating from a location. The system then determines a device to be used to respond to the sound. In some instances, the system analyzes times in which the received audio signals that represent the sound are generated and/or volumes of the sound as represented by the received audio signals. The system can then select the device based on the analysis.
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公开(公告)号：US09392264B1
公开(公告)日：2016-07-12
申请号：US13650597
申请日：2012-10-12
Applicant: Amazon Technologies, Inc.
Inventor： Samuel Henry Chang
CPC classification number: H04N13/282 , H04N13/106 , H04N13/128 , H04N2013/0081
Abstract: An object observable in various images of an environment is recognized as being the same object, even when partially occluded in some images. In one particular implementation, the object is a hand which may be used for gesture input to an augmented reality system. A flexible similarity measurement metric is computed to aid in determining whether hands captured through 2D images of the environment are the same or different, regardless of whether the hands are fully observed or partially occluded. The similarity measurement metric accommodates for translation, rotation, and scaling of the hand to enable recognition of a common hand through a sequence of images even if that hand is partially occluded in some images.
Abstract translation: 在环境的各种图像中可观察到的对象被识别为相同的对象，即使在一些图像中部分遮挡。 在一个特定实现中，对象是可用于向增强现实系统的手势输入的手。 计算灵活的相似性度量度量，以帮助确定通过环境的2D图像捕获的手是相同还是不同的，而不管手是完全观察还是部分遮挡。 相似性测量度量适用于手的平移，旋转和缩放，以便即使该手在一些图像中被部分遮挡，也能够通过一系列图像识别普通手。
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公开(公告)号：US10262230B1
公开(公告)日：2019-04-16
申请号：US15055310
申请日：2016-02-26
Applicant: Amazon Technologies, Inc.
Inventor： Renwei Yan , Samuel Henry Chang , Edward Dietz Crump
Abstract: A two-dimensional (2D) image and a three-dimensional (3D) of an environment may be captured. Upon identifying a location and/or contour of an object from the 3D image, the object from the 3D image may be mapped onto the 2D image. The object, including its location and contour, may be identified from the 2D image. Based at least partly on a comparison between the object from the 3D image and the object from the 2D image, a disparity may be calculated. The location and contour of the object may be determined when it is determined that the disparity is less than or equal to a predetermined threshold. Otherwise, the object from the 3D image may be remapped onto the 2D image.
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公开(公告)号：US09759994B1
公开(公告)日：2017-09-12
申请号：US14949276
申请日：2015-11-23
Applicant: Amazon Technologies, Inc.
Inventor： Olusanya Temitope Soyannwo , Renwei Yan , Edward Dietz Crump , Weijian Wang , Samuel Henry Chang , Ning Yao
CPC classification number: G03B21/53 , A63F13/00 , A63F13/213 , A63F13/42 , G02B27/0101 , G02B2027/0138 , G02B2027/014 , G03B17/54 , G06T19/006 , H04N9/317 , H04N9/3185 , H04N9/3188 , H04N9/3194
Abstract: Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.
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公开(公告)号：US09632592B1
公开(公告)日：2017-04-25
申请号：US14563229
申请日：2014-12-08
Applicant: Amazon Technologies, Inc.
Inventor： Qiang Liu , Samuel Henry Chang
CPC classification number: G06F3/0325 , G06F3/017 , G06F3/0425 , H04N5/74
Abstract: Systems and techniques for detecting gestures of a user based on analysis of acquired depth maps as well as identified distortion within one or more acquired color images. For instance, a system may project content onto a display surface within an environment. A user may then interact with the content via gestures, which may include hand gestures, gestures with a stylus or the like. In some instances, the content includes multiple selection portions, such as soft buttons, icons, and the like, that a user may select by pointing or touching with a finger or other type of selection tool. For instance, the projected content may include one or more projected icons and the user may select one of the icons by touching the display surface onto which the respective display icon is being projected.
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