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公开(公告)号：US20230206625A1
公开(公告)日：2023-06-29
申请号：US17853445
申请日：2022-06-29
Applicant: HERE Global B.V.
Inventor： Robert LEDNER , Xiaoying JIN , Holly RUSSELL , Joseph TANKOVICH
CPC classification number: G06V20/176 , G06V10/82 , G01C11/08
Abstract: An approach is provided for pole extraction from optical imagery. The approach involves, for instance, processing a plurality of images using a machine learning model to generate a plurality of redundant observations of a pole-like object and/or their semantic keypoints respectively depicted in the plurality of images. The approach also involves performing a photogrammetric triangulation of the plurality of redundant observations to determine three-dimensional coordinate data of the pole-like object and/or their semantic keypoints. The approach further involves providing the three-dimensional coordinate data of the pole-like object as an output.
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公开(公告)号：US20230206584A1
公开(公告)日：2023-06-29
申请号：US17853464
申请日：2022-06-29
Applicant: HERE Global B.V.
Inventor： Xiaoying JIN , Robert LEDNER , Holly RUSSELL , Joseph TANKOVICH
CPC classification number: G06V10/255 , G06T7/70 , G06T7/60 , G06V20/17
Abstract: An approach is provided for pole extraction from a single image. The approach involves, for instance, processing an image using a machine learning model to detect one or more semantic keypoints associated with a pole-like object and to determine two-dimensional coordinate data for the one or more semantic keypoints. The approach also involves performing a monocular depth estimation to determine depth information for the one or more semantic keypoints based on the image. The approach further involves determining three-dimensional coordinate data for the one or more semantic keypoints based on the monocular depth information, the two-dimensional coordinate data, and camera parameter data. The approach yet further involves providing the three-dimensional coordinate data as an output.
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