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公开(公告)号：US11972507B2
公开(公告)日：2024-04-30
申请号：US17440221
申请日：2019-04-03
发明人： Liangchen Zhou , Zhengyuan Lv , Guonian Lv
IPC分类号： G06T11/00 , G06T7/60 , G06T7/70 , G06T15/20 , H04N23/698
CPC分类号： G06T11/00 , G06T7/60 , G06T7/70 , G06T15/205 , H04N23/698 , G06T2207/20068 , G06T2207/30244 , G06T2210/56
摘要： Disclosed is an orthophoto map generation method based on a panoramic map, the method comprising: overlapping and fusing a panoramic map and panoramic field depth data when the panoramic map is photographed, such that each pixel of the panoramic map has a corresponding field depth value; acquiring a pitch angle and azimuth angle of a reference pixel relative to a photographing device, and in conjunction with a 360 degree feature of a panorama, calculating an azimuth angle and pitch angle, relative to a camera, of an object represented by each pixel; in conjunction with calculation results and geographic coordinates, determined by a positioning device when the panoramic map is photographed, of the camera, calculating a geographic position corresponding to the object represented by each pixel to form point cloud data.
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2.发明授权公开(公告)号：US11055864B2
公开(公告)日：2021-07-06
申请号：US16421476
申请日：2019-05-24
发明人： Liangchen Zhou , Zhengyuan Lu , Guonian Lu
摘要： The present invention proposes a method and apparatus for three-dimensional measurement and calculation of the geographic position of a target object based on a street view map. The method comprises, among others: selecting a target object in a street view map at first and then selecting two appropriate viewpoints according to the target object; adjusting the bottom/top of the target object to the central position of the street view map under each viewpoint and obtaining viewpoint parameters from the viewpoints to the bottom/top of the target object; determining two spatial straight lines according to the longitudes and latitudes of the viewpoints and the viewing angles from the viewpoints to the bottom of the target object and calculating the intersection of the two straight lines, which is the longitude and latitude of the target object in the actual geographic space.
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公开(公告)号：US11257234B2
公开(公告)日：2022-02-22
申请号：US16422077
申请日：2019-05-24
发明人： Liangchen Zhou , Zhengyuan Lu , Guonian Lu
摘要： The present invention relates to a method for three-dimensional measurement and calculation of the geographic position and height of a target object based on street view images. The method comprises: selecting a target object in a street view map at first and then selecting two appropriate viewpoints according to the target object and obtaining the longitudes and latitudes of the two viewpoints; obtaining three street view images at different viewing angles under the viewpoints respectively; calculating the horizontal angles and pitch angles of the target object under the viewpoints according to the three street view images; determining two spatial straight lines according to the longitudes and latitudes of the viewpoints and the viewing angles from the viewpoints to the bottom of the target object, which intersect forward, and calculating the intersection of the two straight lines, which is the geographic position of the target object.
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