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公开(公告)号：US20210156695A1
公开(公告)日：2021-05-27
申请号：US17169064
申请日：2021-02-05
发明人： Jun Zhang , Bin Xu , Ronghao Li , Xiaoqiang Teng , Chao Liu , Chong Deng , Gengxin Gu , Huanqing Zhou , Qi Zhou , Yue Liu , Pengfei Xu , Runbo Hu , Hongxia Zhang , Yingfeng Zhang , Guanghui Zhao , Bin Du , Hua Chai , Xian Zhang
摘要： Systems and methods for navigating a user to a destination are provided. An exemplary indoor navigation method uses a terminal device. The method includes capturing, by the terminal device, image data of an indoor scene, and determining a current position of the user based on the captured image data. The method also includes determining a navigation path and a navigation sign for navigating the user from the current position to the destination, and rendering, by the terminal device, a three-dimensional representation of the indoor scene with the navigation sign placed therein based on the image data and the navigation path. The navigation sign signals the navigation path in the three-dimensional representation. The method further includes displaying, on the terminal device, the three-dimensional representation to the user.
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公开(公告)号：US11841241B2
公开(公告)日：2023-12-12
申请号：US17078087
申请日：2020-10-22
发明人： Zhiwei Ruan , Zongyue Liu , Xiaoqiang Teng , Jun Zhang , Pengfei Xu
IPC分类号： G01C21/00 , G06F30/13 , G06T19/00 , G06Q30/0601
CPC分类号： G01C21/3867 , G01C21/383 , G01C21/3841 , G01C21/3859 , G06F30/13 , G06T19/00 , G06Q30/0613
摘要： Systems and methods for updating a model of a building are provided. The method includes obtaining a three-dimensional (3D) model of a building including reference environmental data associated with a plurality of reference locations of the building and obtaining current environmental data corresponding to a current location of the building. The method further includes identifying, from the 3D model, a target reference location corresponding to the current location from the plurality of reference locations of the building and comparing the current environmental data with the target reference environmental data. The method further includes sending to the user device the target reference location when the current environmental data match the target reference environmental data, and updating the 3D model with the current environmental data when the current environmental data statistically un-match the target reference environmental data.
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公开(公告)号：US11526807B2
公开(公告)日：2022-12-13
申请号：US16826084
申请日：2020-03-20
发明人： Pengfei Xu , Sicheng Zhao , Guangzhi Wang , Shanghang Zhang , Yang Gu , Yaxian Li , Zhichao Song , Runbo Hu , Hua Chai
摘要： Embodiments of the disclosure provide systems and methods for domain adaptation between a plurality of source domains and a target domain. The artificial intelligence method includes receiving labeled data from the plurality of source domains and unlabeled data from the target domain. The method further includes separately training, by a processor, a plurality of source classifiers each corresponding to a source domain using the labeled data received from the respective source domains. The method also includes selecting a subset of the labeled data received from each source domain based on a similarity between the selected labeled data and the unlabeled data of the target domain. The method additionally includes refining, by the processor, each source classifier using the selected subset of the labeled data, and predicting labels of the unlabeled data using the refined source classifiers.
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公开(公告)号：US11293763B2
公开(公告)日：2022-04-05
申请号：US16894771
申请日：2020-06-06
发明人： Mengxi Li , Wei Shao , Tingting Song , Maozong Zheng , Pengfei Xu , Kaiqiang An
摘要： A method configured to implemented on at least one map processing device for determining new roads on a map includes obtaining a first road network image of a region, the first road network image including a first plurality of roads. The method also includes determining a second road network image of the region based on a map of the region, the second road network image including a second plurality of roads that are not present in the first road network image. The method further includes determining a third road network image by concatenating the first road network image and the second road network image. The method still further includes determining a fourth road network image of the region by processing the third road network with at least one convolution layer, the fourth road network including the second plurality of roads.
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公开(公告)号：US11965744B2
公开(公告)日：2024-04-23
申请号：US17093753
申请日：2020-11-10
发明人： Xiaoqiang Teng , Rongzhi Wang , Jiankuan Li , Zhiwei Ruan , Zongyue Liu , Jun Zhang , Pengfei Xu , Shenggang Bao , Chao Liu
CPC分类号： G01C21/206 , G01C21/12 , G01C21/1656 , G01C21/3602 , G01C21/3632
摘要： The present disclosure is related to systems and methods for indoor positioning. The method includes obtaining a first location of a subject at a first time point. The method also includes determining one or more motion parameters associated with the subject at least based on one or more sensors carried by the subject. The method further includes determining, based on the first location of the subject and the one or more motion parameters associated with the subject, a second location of the subject at a second time point after the first time point. The method still further includes adjusting, at least based on surroundings information associated with the subject at the second time point, the second location of the subject to determine a target location of the subject.
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公开(公告)号：US11748860B2
公开(公告)日：2023-09-05
申请号：US16858634
申请日：2020-04-26
发明人： Kaiqiang An , Maozong Zheng , Mengxi Li , Xiang Wen , Pengfei Xu
CPC分类号： G06T5/30 , G01C21/3415 , G06T7/90 , G08G1/0133 , G08G1/0141 , G08G1/0145
摘要： The present disclosure relates to systems and methods for identifying one or more target roads. The systems may perform the methods to obtain a heat map associated with a plurality of driving track points along a plurality of roads in a target region, wherein the plurality of roads includes one or more target roads and one or more reference roads; obtain a road network map associated with the one or more reference roads in the target region; produce an intermediate heat map by: eliminating pixels in the heat map corresponding to the one or more reference roads in the road network map, eliminating background pixels corresponding to background of the heat map, and thinning the heat map; and determine start coordinate information and end coordinate information associated with the one or more target roads based on the intermediate heat map according to a linear transformation.
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公开(公告)号：US20210295208A1
公开(公告)日：2021-09-23
申请号：US16826084
申请日：2020-03-20
发明人： Pengfei Xu , Sicheng Zhao , Guangzhi Wang , Shanghang Zhang , Yang Gu , Yaxian Li , Zhichao Song , Runbo Hu , Hua Chai
摘要： Embodiments of the disclosure provide systems and methods for domain adaptation between a plurality of source domains and a target domain. The artificial intelligence method includes receiving labeled data from the plurality of source domains and unlabeled data from the target domain. The method further includes separately training, by a processor, a plurality of source classifiers each corresponding to a source domain using the labeled data received from the respective source domains. The method also includes selecting a subset of the labeled data received from each source domain based on a similarity between the selected labeled data and the unlabeled data of the target domain. The method additionally includes refining, by the processor, each source classifier using the selected subset of the labeled data, and predicting labels of the unlabeled data using the refined source classifiers.
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