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1.发明申请公开(公告)号：US20210166421A1
公开(公告)日：2021-06-03
申请号：US17078747
申请日：2020-10-23
Inventor： Peng SUN , Changjie MA , Chao ZHENG , Yuefeng SUN
Abstract: The present disclosure provides a method, an electronic device and a storage medium for detecting a position change of a lane line. The method includes: converting a first change in a target region of first measurement data of a distance between a lane line and a reference line to a first equivalent position change, the first measurement data being obtained from first road data collected by a high-precision device on the road; correcting second measurement data of the distance with the first measurement data, the second measurement data being obtained from second road data collected by a low-precision device on the road; converting a second change of the corrected second measurement data to a second equivalent position change; and detecting a position change of the lane line in the target region based on a comparison of the first equivalent position change and the second equivalent position change.
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公开(公告)号：US20210304371A1
公开(公告)日：2021-09-30
申请号：US17082761
申请日：2020-10-28
Inventor： Yuzhan CAI , Chao ZHENG , Chao YAN , Hantian ZHANG
Abstract: The disclosure provides a 3-dimensional reconstruction method, an electronic device and a storage medium. The method includes: obtaining an image sequence pre-collected by a camera; obtaining nominal intrinsic parameters of the camera, and preset initial values of distortion coefficients of the camera, the camera being a camera for collecting the image sequence; calculating fluctuation ranges of the distortion coefficients; performing the 3D reconstruction on the image sequence based on the nominal intrinsic parameters, the initial values of the distortion coefficients, and the fluctuation ranges of the distortion coefficients; and during the 3D reconstruction, optimizing an obtained visual point cloud and a camera pose.
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