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公开(公告)号：US11105644B2
公开(公告)日：2021-08-31
申请号：US17094828
申请日：2020-11-11
发明人： Kaiqiang An , Guoping Liu
摘要： The present disclosure relates to systems and methods for identifying a closed road section. The systems may obtain a first heat map representing a first density of tracked vehicles in a target area over a first time period and a second heat map representing a second density of tracked vehicles in the target area over a second time period; determine a difference map between the first heat map and the second heat map; determine one or more candidate regions based on the difference map; identify one or more candidate links associated with the one or more candidate regions in a road network map; determine one or more confidence levels associated with the one or more candidate links based on the one or more candidate regions; and identify one or more closed road sections based on the one or more confidence levels.
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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：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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