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公开(公告)号：US20240159857A1
公开(公告)日：2024-05-16
申请号：US18423076
申请日：2024-01-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhi LI , Dandan ZENG , Yongliang WANG , Yun ZHANG , Fangsong WANG
IPC: G01S5/02
CPC classification number: G01S5/02526
Abstract: This application disclose a method for constructing an indoor map. The method includes: obtaining a plurality of first tracks and a second track, where each first track is a flat-layer track located on an indoor horizontal layer, the second track is a cross-layer track located between different indoor horizontal layers, and a first wireless signal information similarity between each first track point of the first track and each second track point is less than a first threshold; and performing layering on the plurality of first tracks based on a second wireless signal information similarity between the plurality of first tracks, to obtain a layering result, where the layering result may be used to construct an indoor map.
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Patent Agency Ranking
公开(公告)号：US20230315255A1
公开(公告)日：2023-10-05
申请号：US18329928
申请日：2023-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Caifa ZHOU , Yongliang WANG , Dandan ZENG , Huafeng BA , Jianhua CAI
IPC: G06F3/04817 , G01C21/16
CPC classification number: G06F3/04817 , G01C21/1654
Abstract: An activity recognition method, a display method, and an electronic device are disclosed. The electronic device can obtain a plurality of poses of the electronic device, and obtain one or more pieces of feature data based on the plurality of poses by using a plurality of one-dimensional convolutional layers, where each of the one or more pieces of feature data indicates a motion state of a person holding the electronic device, an action of the person, or a tool carrying the person. Then, the electronic device displays, as an icon, the types of information indicated by the one or more pieces of feature data. According to the method, feature data for representing an activity state of the person is extracted by using the one-dimensional convolutional layers, and features for representing the activity
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公开(公告)号：US20230152121A1
公开(公告)日：2023-05-18
申请号：US18157710
申请日：2023-01-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhi LI , Dandan ZENG , Yongliang WANG
CPC classification number: G01C21/383 , G01C21/12 , G01C21/32 , G01C21/3841
Abstract: This application provides an indoor map generation method and apparatus. In the method, a plurality of first tracks are obtained based on a PDR algorithm. A plurality of first target tracks are further selected from the plurality of first tracks, and at least one second track corresponding to each first target track is extended to the first target track based on the first target track, to obtain a branch. The obtained branches are combined, to obtain a map.
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公开(公告)号：US20220156969A1
公开(公告)日：2022-05-19
申请号：US17667122
申请日：2022-02-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ran DING , Yan ZHOU , Yongliang WANG
Abstract: The disclosure provides example visual localization methods. One method includes that a terminal device obtains an image of a building. The terminal device generates a descriptor based on the image. The descriptor includes information about a horizontal viewing angle between a first vertical feature line and a second vertical feature line in the image. The first vertical feature line indicates a first facade intersection line of the building, and the second vertical feature line indicates a second facade intersection line of the building. The terminal device performs matching in a preset descriptor database based on the descriptor, to obtain localization information of a photographing place of the image.
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5.发明公开公开(公告)号：US20240271939A1
公开(公告)日：2024-08-15
申请号：US18621182
申请日：2024-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiya CAO , Caifa ZHOU , Yongliang WANG , Dandan ZENG
Abstract: This application relates to a method for training a trajectory estimation model. The method includes: obtaining first IMU data in a first time period; obtaining second IMU data, where the first IMU data and the second IMU data use a same coordinate system, and the second IMU data and the first IMU data have a preset correspondence; in a feature extraction module, extracting a first feature of the first IMU data, and extracting a second feature of the second IMU data; in a label estimation module, determining a first label based on the first feature, and determining a second label based on the second feature; determining a first difference between the first label and the second label; and performing a first update on a parameter of the feature extraction module and a parameter of the label estimation module in a direction of reducing the first difference.
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公开(公告)号：US20230354258A1
公开(公告)日：2023-11-02
申请号：US18342077
申请日：2023-06-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Caifa ZHOU , Yongliang WANG , Dandan ZENG , Zhi LI , Longhai WU
CPC classification number: H04W64/003 , G01H9/004 , G01N21/65
Abstract: A data processing method is provided, the method including: obtaining crowd-sourced data, where each instance of the crowd-sourced data includes first location information of a terminal at a location point and received radio signal information, the location point is within a preset area, and the first location information indicates a relative location of the location point with respect to a preset location point; obtaining, based on the crowd-sourced data, a plurality of first similarities and a second similarity corresponding to each first similarity; determining a target mapping relationship based on the plurality of first similarities and the second similarity corresponding to each first similarity; and obtaining a plurality of preset trajectories within the preset area, and performing trajectory fusion on the plurality of preset trajectories with the target mapping relationship as a constraint, to obtain a trajectory fusion result.
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