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公开(公告)号：US11951975B1
公开(公告)日：2024-04-09
申请号：US17734709
申请日：2022-05-02
Applicant: Waymo LLC
Inventor： Brandon Douglas Luders , Vadim Furman , Nathaniel Fairfield
IPC: B60W30/00 , G01S13/931 , G01S17/00 , G01S17/931 , G05D1/00 , G06V20/56 , G08G1/16
CPC classification number: B60W30/00 , G01S13/931 , G01S17/00 , G01S17/931 , G05D1/0088 , G05D1/0212 , G06V20/588 , G08G1/167 , G01S2013/93271 , G01S2013/93272 , G01S2013/93274 , G01S2013/93277
Abstract: The technology relates to identifying sensor occlusions due to the limits of the ranges of a vehicle's sensors and using this information to maneuver the vehicle. As an example, the vehicle is maneuvered along a route that includes traveling on a first roadway and crossing over a lane of a second roadway. A trajectory is identified from the lane that will cross with the route during the crossing at a first point. A second point beyond a range of the vehicle's sensors is selected. The second point corresponds to a hypothetical vehicle moving towards the route along the lane. A distance between the first point and the second point is determined. An amount of time that it would take the hypothetical vehicle to travel the distance is determined and compared to a threshold amount of time. The vehicle is maneuvered based on the comparison to complete the crossing.
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公开(公告)号：US11847772B2
公开(公告)日：2023-12-19
申请号：US17886616
申请日：2022-08-12
Applicant: BFLY Operations, Inc.
Inventor： Alex Rothberg , Igor Lovchinsky , Jimmy Jia , Tomer Gafner , Matthew de Jonge , Jonathan M. Rothberg
CPC classification number: G06T7/0002 , G01S17/00 , A61B8/0883 , A61B8/5215 , G06T2207/10016 , G06T2207/10132 , G06T2207/20076 , G06T2207/20081 , G06T2207/30168
Abstract: Aspects of the technology described herein relate to techniques for calculating, during imaging, a quality of a sequence of images collected during the imaging. Calculating the quality of the sequence of images may include calculating a probability that a medical professional would use a given image for clinical evaluation and a confidence that an automated analysis segmentation performed on the given image is correct. Techniques described herein also include receiving a trigger to perform an automatic measurement on a sequence of images, calculating a quality of the sequence of images, determining whether the quality of the sequence of images exceeds a threshold quality, and performing the automatic measurement on the sequence of images based on determining that the quality of the sequence of images exceeds the threshold quality.
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公开(公告)号：US11842424B2
公开(公告)日：2023-12-12
申请号：US17077695
申请日：2020-10-22
Applicant: SK hynix Inc.
Inventor： Jeong Eun Song , Yu Jin Park , Min Seok Shin
IPC: G06T1/60 , G06T1/20 , G11C7/10 , G11C27/02 , G11C5/14 , G01B11/02 , G01S17/00 , G01S7/481 , G01S7/484
CPC classification number: G06T1/60 , G01B11/022 , G01S17/00 , G06T1/20 , G11C5/147 , G11C7/106 , G11C7/1057 , G11C27/028 , G01S7/484 , G01S7/4816
Abstract: Disclosed is an image sensing device including a plurality of current cells whose total number to be used is adjusted based on a plurality of enable signals, and which are sequentially controlled based on a reset signal and a plurality of selection signals; a current-voltage conversion circuit suitable for converting a plurality of unit currents, which are supplied from current cells used among the plurality of current cells, into a ramp signal; and a first control circuit suitable for generating the plurality of enable signals based on a maximum conversion code value corresponding to a slope of the ramp signal.
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公开(公告)号：US11714171B2
公开(公告)日：2023-08-01
申请号：US16830680
申请日：2020-03-26
Applicant: Waymo LLC
Inventor： Pierre-Yves Droz , David Hutchison
IPC: G02B6/10 , G01S7/4863 , G02B19/00 , G01S17/89 , G02B27/09 , G01S7/481 , G01S17/00 , G02B5/00 , G02B6/08
CPC classification number: G01S7/4863 , G01S7/4813 , G01S7/4816 , G01S7/4818 , G01S17/00 , G01S17/89 , G02B5/003 , G02B5/005 , G02B6/08 , G02B19/0014 , G02B19/0076 , G02B27/0994
Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens that focuses light from a scene toward a focal plane. The system also includes an aperture defined within an opaque material. The system also includes a plurality of waveguides. A given waveguide of the plurality has an input end that receives a portion of light transmitted through the aperture, and guides the received portion toward an output end of the given waveguide. A cross-sectional area of the guided portion at the output end is greater than a cross-sectional area of the received portion at the input end. The system also includes an array of light detectors that detects the guided light transmitted through the output end.
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公开(公告)号：US11703588B2
公开(公告)日：2023-07-18
申请号：US16435608
申请日：2019-06-10
Applicant: TOPCON CORPORATION
Inventor： You Sasaki
CPC classification number: G01S17/00 , G01B11/002 , G01B11/24 , G06T7/70 , G06T2207/10028
Abstract: Point cloud data that is missed due to an optical reflection object in measuring point cloud data using a laser scanner is used. A reflection object position calculating device includes a point cloud data receiving unit, a three-dimensional point cloud model generating unit, a missing data part searching unit, a missing data part determining unit, and a reflection object position calculator. The point cloud data receiving unit receives point cloud data. The three-dimensional point cloud model generating unit generates a three-dimensional point cloud model from the received point cloud data. The missing data part searching unit searches for a missing data part of the generated three-dimensional point cloud model. The missing data part determining unit determines whether the found missing data part has a predetermined specific shape. The reflection object position calculator calculates three-dimensional coordinates of the missing data part that is determined as having the specific shape.
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Patent Agency Ranking
公开(公告)号：US20180343401A1
公开(公告)日：2018-11-29
申请号：US15603373
申请日：2017-05-23
Applicant: GoPro, Inc.
Inventor： Scott Patrick Campbell , Gary Fong
CPC classification number: G05D1/101 , G01S17/00 , G01S17/89 , G06K9/00664 , G06K9/2018 , G06T7/521 , G06T7/73 , G06T2207/10016 , G06T2207/10048 , G06T2207/30261 , G08G5/0021 , G08G5/0069 , G08G5/045 , H04N5/2256 , H04N5/2258 , H04N9/04553
Abstract: An object detection system and method detect objects by projecting an infrared (IR) pattern from an IR emitter and capturing images with respective cameras that each includes an IR channel (e.g., a near IR channel) and one or more visible channels (e.g., red, green, and blue). The object detection system may detect, in the IR channels of the captured images, illumination features (e.g., points, lines, or shapes of IR illumination) from the IR pattern and may also detect objects in the visible channels of the images. The object detection sensor may estimate locations for the objects based on detected illumination features incident upon each object. The object detection system may be part of an aerial vehicle and may be used for autonomous or semi-autonomous flight planning.
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公开(公告)号：US10012732B2
公开(公告)日：2018-07-03
申请号：US15859170
申请日：2017-12-29
Applicant: Luminar Technologies, Inc.
Inventor： Jason M. Eichenholz , Austin K. Russell , Scott R. Campbell , Alain Villeneuve , Rodger W. Cleye , Joseph G. LaChapelle , Matthew D. Weed , Lane A. Martin
CPC classification number: G01S17/105 , G01S7/4804 , G01S7/4811 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/483 , G01S7/484 , G01S7/4861 , G01S7/4863 , G01S7/4865 , G01S7/4873 , G01S7/4876 , G01S17/00 , G01S17/02 , G01S17/06 , G01S17/08 , G01S17/10 , G01S17/102 , G01S17/32 , G01S17/42 , G01S17/88 , G01S17/89 , G01S17/936 , H01S3/0007 , H01S3/0078 , H01S3/0085 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08086 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/0941 , H01S3/10023 , H01S3/1106 , H01S3/1608 , H01S3/2383 , H01S5/0057 , H01S5/0085 , H01S5/4012 , H01S5/4087 , H01S2301/02
Abstract: A lidar system with a pulsed laser diode to produce a plurality of optical seed pulses of light at one or more operating wavelengths between approximately 1400 nm and approximately 1600 nm. The lidar system may also include one or more optical amplifiers to amplify the optical seed pulses to produce a plurality of output optical pulses. Each optical amplifier may produce an amount of amplified spontaneous emission (ASE), and the output optical pulses may have characteristics comprising: a pulse repetition frequency of less than or equal to 100 MHz; a pulse duration of less than or equal to 20 nanoseconds; and a duty cycle of less than or equal to 1%. The lidar system may also include one or more optical filters to attenuate the ASE and a receiver to detect at least a portion of the output optical pulses scattered by a target located a distance.
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公开(公告)号：US09958545B2
公开(公告)日：2018-05-01
申请号：US15818501
申请日：2017-11-20
Applicant: Luminar Technologies, Inc.
Inventor： Jason M. Eichenholz , Austin K. Russell , Scott R. Campbell , Alain Villeneuve , Rodger W. Cleye , Joseph G. LaChapelle , Matthew D. Weed , Lane A. Martin
CPC classification number: G01S17/06 , G01S7/4804 , G01S7/4811 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/483 , G01S7/484 , G01S7/4861 , G01S7/4863 , G01S7/4865 , G01S17/00 , G01S17/02 , G01S17/08 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/88 , G01S17/89 , G01S17/936 , H01S3/0007 , H01S3/0078 , H01S3/0085 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08086 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/0941 , H01S3/10023 , H01S3/1106 , H01S3/1608 , H01S3/2383 , H01S5/0057 , H01S5/0085 , H01S5/4012 , H01S5/4087 , H01S2301/02
Abstract: A lidar system with a light source to emit a pulse of light and a receiver to detect a return pulse of light. The receiver can include a first channel to receive a first portion of the return pulse and produce a first digital output signal, and a second channel to receive a second portion of the return pulse and produce a second digital output signal. The receiver can include a logic circuit to produce an output electrical-edge signal in response to receiving the digital output signals. The receiver can also include a time-to-digital converter to determine a time interval based on an emission time of the pulse of light and based on the electrical-edge signal. The lidar system can also include a processor to determine a distance to a target based at least in part on the time interval.
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公开(公告)号：US09905032B2
公开(公告)日：2018-02-27
申请号：US15384153
申请日：2016-12-19
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Aaron Matthew Rogan , Benjamin James Kadlec
IPC: G06T11/60 , G01S17/50 , G01S17/89 , G01S17/93 , G06K9/46 , G06K9/00 , G01S17/00 , G06T19/20 , G01S7/48
CPC classification number: G06T11/60 , G01S7/4802 , G01S7/4808 , G01S17/00 , G01S17/50 , G01S17/88 , G01S17/89 , G01S17/936 , G06K9/00 , G06K9/00201 , G06K9/00335 , G06K9/4671 , G06T7/20 , G06T19/20
Abstract: In scenarios involving the capturing of an environment, it may be desirable to remove temporary objects (e.g., vehicles depicted in captured images of a street) in furtherance of individual privacy and/or an unobstructed rendering of the environment. However, techniques involving the evaluation of visual images to identify and remove objects may be imprecise, e.g., failing to identify and remove some objects while incorrectly omitting portions of the images that do not depict such objects. However, such capturing scenarios often involve capturing a lidar point cloud, which may identify the presence and shapes of objects with higher precision. The lidar data may also enable a movement classification of respective objects differentiating moving and stationary objects, which may facilitate an accurate removal of the objects from the rendering of the environment (e.g., identifying the object in a first image may guide the identification of the object in sequentially adjacent images).
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公开(公告)号：US20180024241A1
公开(公告)日：2018-01-25
申请号：US15470708
申请日：2017-03-27
Applicant: Luminar Technologies, Inc.
Inventor： Jason M. Eichenholz , Austin K. Russell , Scott R. Campbell , Alain Villeneuve , Rodger W. Cleye , Joseph G. LaChapelle , Matthew D. Weed , Lane A. Martin
CPC classification number: G01S17/06 , G01S7/4804 , G01S7/4811 , G01S7/4814 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S7/4818 , G01S7/483 , G01S7/484 , G01S7/4861 , G01S7/4863 , G01S7/4865 , G01S17/00 , G01S17/02 , G01S17/08 , G01S17/10 , G01S17/32 , G01S17/42 , G01S17/88 , G01S17/89 , G01S17/936 , H01S3/0007 , H01S3/0078 , H01S3/0085 , H01S3/06733 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/08086 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/0941 , H01S3/10023 , H01S3/1106 , H01S3/1608 , H01S3/2383 , H01S5/0057 , H01S5/0085 , H01S5/4012 , H01S5/4087 , H01S2301/02
Abstract: A lidar system with a pulsed laser diode configured to produce an optical seed pulse of light at an operating wavelength between approximately 1400 nm and approximately 1600 nm. The lidar system may also include an optical amplifier configured to amplify the optical seed pulse to produce an eye-safe output optical pulse that is emitted into a field of view. The optical amplifier may produce an amount of amplified spontaneous emission (ASE) associated with the output optical pulse. The lidar system may include an optical filter configured to filter the output optical pulse to reduce the associated ASE. The lidar system may also include a receiver configured to detect at least a portion of the output optical pulse reflected or scattered from the field of view.
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