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公开(公告)号:US11151741B2
公开(公告)日:2021-10-19
申请号:US16263880
申请日:2019-01-31
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Honghui Zhang , Lei Han , Xiao Hu
IPC: G06T7/593 , G06T7/579 , G06T7/73 , H04N13/204 , H04N13/128 , B64C39/02 , B64D47/08 , G05D1/10 , H04N13/00
Abstract: A method for assisting obstacle avoidance of a mobile platform includes determining to use a detection mode from a plurality of detection modes, detecting a characteristic condition of the mobile platform with respect to an obstacle using the detection mode, and directing the mobile platform to avoid the obstacle based on the detected characteristic condition.
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公开(公告)号:US09778662B2
公开(公告)日:2017-10-03
申请号:US15213118
申请日:2016-07-18
Applicant: SZ DJI TECHNOLOGY CO., Ltd
Inventor: Ketan Tang , Honghui Zhang , Cong Zhao
CPC classification number: G05D1/101 , B64C39/024 , B64C2201/027 , B64C2201/123 , B64D47/08 , G01C3/00 , G01C3/14 , G05D1/102 , G06K9/0063 , G06K9/00805 , G06T7/73 , G06T2207/10004 , H04N5/247
Abstract: Systems and methods for obstacle detection and state information determination are provided. In some embodiments, a movable object may carry one or more imaging devices. The imaging devices may be arranged on the movable object so as to have a field of view oriented vertically relative to the movable object. The arrangement of the imaging device may complement or supplant existing arrangement schemes and provide efficient, multi-functional and cost-effective means of arranging imaging devices on movable objects.
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公开(公告)号:US11343443B2
公开(公告)日:2022-05-24
申请号:US16890582
申请日:2020-06-02
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Cong Zhao , Guyue Zhou , Honghui Zhang , Yin Tang , Guisheng Nong , Jiangang Feng
Abstract: An unmanned aerial vehicle (UAV) includes a vehicle body and a multi-ocular imaging assembly. The multi-ocular imaging assembly includes at least two imaging devices disposed in and fixed to the vehicle body.
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公开(公告)号:US11300413B2
公开(公告)日:2022-04-12
申请号:US16885841
申请日:2020-05-28
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Honghui Zhang
Abstract: A method of controlling flight of an unmanned aerial vehicle (UAV) includes collecting, while the UAV traverses a flight path, a set of images corresponding to different fields of view of an environment around the UAV using multiple image capture devices. Each of the multiple image capture devices includes one of the different fields of view. The method further includes extracting a set of feature points from the set of images and selecting a subset of feature points from the set of feature points to be stored based on a number of image capture devices that collect images including the subset of feature points to aid navigation of the UAV.
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公开(公告)号:US11044452B2
公开(公告)日:2021-06-22
申请号:US16109211
申请日:2018-08-22
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Zhenyu Zhu , Honghui Zhang , Zhiyuan Wu
IPC: H04N13/128 , H04N13/271 , H04N13/239 , G06T7/593 , H04N13/243 , H04N13/00
Abstract: A method of distance measuring includes obtaining a depth map and a stereo pair of images of a scene of interest, and enhancing a precision of the depth map based on disparity values of corresponding points between the images. The images have a higher resolution than the depth map. Enhancing the precision of the depth map includes determining the disparity values by optimizing an energy function of the images and replacing low precision values of the depth map with corresponding high precision values based on the disparity values.
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公开(公告)号:US11346666B2
公开(公告)日:2022-05-31
申请号:US17004513
申请日:2020-08-27
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Honghui Zhang
Abstract: A method for detecting a displacement of a mobile platform includes acquiring a first frame and a second frame using an imaging device coupled to the mobile platform, obtaining an angle of the imaging device relative to a reference level while acquiring the first frame, and determining the displacement of the mobile platform based at least on the first frame, the second frame, and the angle of the imaging device relative to the reference level.
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公开(公告)号:US10760907B2
公开(公告)日:2020-09-01
申请号:US16733550
申请日:2020-01-03
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Honghui Zhang
Abstract: A method for detecting a displacement of a mobile platform is provided. The method includes acquiring a first frame and a second frame using an imaging device that is coupled to the mobile platform, and obtaining rotation data using an inertial measurement unit (IMU) that is coupled to the mobile platform. The method also includes calculating a translation array based on the first frame, the second frame, and the rotation data. The method further includes determining the displacement of the mobile platform based on the translation array.
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公开(公告)号:US10670407B2
公开(公告)日:2020-06-02
申请号:US16001926
申请日:2018-06-06
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor: Honghui Zhang
Abstract: A method of controlling flight of an unmanned aerial vehicle (UAV) includes collecting, while the UAV traverses a flight path, a first set of images corresponding to different fields of view of an environment around the UAV using multiple image capture devices. Each of the multiple image capture devices has one of the different fields of view. The method further includes extracting a first set of feature points from the first set of images, controlling the UAV to traverse a return path, and while the UAV traverses the return path, collecting a second set of images corresponding to the different fields of view using the multiple image capture devices and comparing the first set of feature points with a second set of feature points extracted from the second set of images.
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公开(公告)号:US10466718B2
公开(公告)日:2019-11-05
申请号:US15675403
申请日:2017-08-11
Applicant: SZ DJI TECHNOLOGY CO., Ltd
Inventor: Ketan Tang , Honghui Zhang , Cong Zhao
Abstract: Systems and methods for obstacle detection and state information determination are provided. In some embodiments, a movable object may carry one or more imaging devices. The imaging devices may be arranged on the movable object so as to have a field of view oriented vertically relative to the movable object. The arrangement of the imaging device may complement or supplant existing arrangement schemes and provide efficient, multi-functional and cost-effective means of arranging imaging devices on movable objects.
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公开(公告)号:US20180004232A1
公开(公告)日:2018-01-04
申请号:US15675403
申请日:2017-08-11
Applicant: SZ DJI TECHNOLOGY CO., Ltd
Inventor: Ketan Tang , Honghui Zhang , Cong Zhao
CPC classification number: G05D1/101 , B64C39/024 , B64C2201/027 , B64C2201/123 , B64C2201/127 , B64D47/08 , G01C3/00 , G01C3/14 , G05D1/102 , G06K9/0063 , G06K9/00805 , G06T7/73 , G06T2207/10004 , H04N5/247
Abstract: Systems and methods for obstacle detection and state information determination are provided. In some embodiments, a movable object may carry one or more imaging devices. The imaging devices may be arranged on the movable object so as to have a field of view oriented vertically relative to the movable object. The arrangement of the imaging device may complement or supplant existing arrangement schemes and provide efficient, multi-functional and cost-effective means of arranging imaging devices on movable objects.
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