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公开(公告)号：US20230059277A1
公开(公告)日：2023-02-23
申请号：US17807132
申请日：2022-06-15
Inventor： Xiaopei HOU , Junjun ZHANG , Changjun SHENG , Juntao TONG , Jiajing FU , Dan MA , Yingjie NIU , Wenya LIU , Yuke ZHANG , Yun ZHAO , Youhan CHEN , Xiufeng HAN , Xiulong XIA , Yang ZHANG
Abstract: Provided are a map data processing method and apparatus, and a storage medium, which relate to the field of data processing technology and, in particular, to artificial intelligence technology, for example, computer vision, map technology, and intelligent transportation. A specific implementation solution includes: processing landform coverage data according to a type of surface species coverage and a data processing rule associated with the type of surface species coverage to obtain a surface species coverage effect map; and generating a landform map according to the surface species coverage effect map and a reference map.
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公开(公告)号：US20230222734A1
公开(公告)日：2023-07-13
申请号：US18180670
申请日：2023-03-08
Inventor： Junjun ZHANG
CPC classification number: G06T17/05 , G01C21/3819 , G01C21/3852 , G06T7/70 , G06T7/521 , G06V10/34 , G06V20/70 , G06V20/182 , G06T2207/10028 , G06T2207/10032 , G06T2207/20021 , G06T2207/30181 , G06T2210/56
Abstract: A method for constructing a three-dimensional road network map is disclosed. The method includes: extracting a two-dimensional road based on a satellite remote sensing image; skeletonizing the two-dimensional road to obtain a two-dimensional road network map; and determining a height of each point in the two-dimensional road network map based on an elevation of three-dimensional point cloud data, to obtain the three-dimensional road network map.
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3.发明公开公开(公告)号：US20230222733A1
公开(公告)日：2023-07-13
申请号：US17755172
申请日：2021-11-17
Inventor： Junjun ZHANG , Yi ZENG , Xiaopei HOU
IPC: G06T17/05 , G06T3/40 , G06T5/50 , G06V10/46 , G06V10/764
CPC classification number: G06T17/05 , G06T3/40 , G06T5/50 , G06V10/46 , G06V10/764 , G06T2207/20221
Abstract: The present disclosure provides a landform map building method and apparatus, an electronic device and a readable storage medium, and relates to the field of image processing technologies. The method for building landform map includes: acquiring a to-be-processed image to obtain a grayscale image of the to-be-processed image; classifying pixels in the grayscale image according to grayscale values to obtain binary images corresponding to different landform categories; extracting image spot contours of image spots in the binary images, and taking the extracted image spot contours as vector graphs to obtain a vector graph set; merging, according to position information, the vector graphs corresponding to a same landform category in the vector graph set, and obtaining a first landform map according to merging results corresponding to different landform categories; and mapping, by using a preset landform type, the vector graphs corresponding to different landform categories in the first landform map, and taking a mapping result as a second landform map.
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公开(公告)号：US20230111511A1
公开(公告)日：2023-04-13
申请号：US17662712
申请日：2022-05-10
Inventor： Junjun ZHANG , Yi ZENG , Wei MA
Abstract: The present disclosure provides an intersection vertex height value acquisition method and apparatus, an electronic device and a storage medium, and relates to the field of artificial intelligence such as intelligent transportation. The method may include: determining roads with starting points or ending points located in a to-be-processed intersection; and performing, for any vertex in a polygonal intersection region corresponding to the intersection, the following processing: determining a road corresponding to the vertex, taking the determined road as a matching road of the vertex, and determining a height value of the vertex according to height values of endpoints on a road center line of the matching road.
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