OBJECT DETECTION AND CLASSIFICATION USING LIDAR RANGE IMAGES FOR AUTONOMOUS MACHINE APPLICATIONS

    公开(公告)号:US20210063578A1

    公开(公告)日:2021-03-04

    申请号:US17005788

    申请日:2020-08-28

    Abstract: In various examples, a deep neural network (DNN) may be used to detect and classify animate objects and/or parts of an environment. The DNN may be trained using camera-to-LiDAR cross injection to generate reliable ground truth data for LiDAR range images. For example, annotations generated in the image domain may be propagated to the LiDAR domain to increase the accuracy of the ground truth data in the LiDAR domain—e.g., without requiring manual annotation in the LiDAR domain. Once trained, the DNN may output instance segmentation masks, class segmentation masks, and/or bounding shape proposals corresponding to two-dimensional (2D) LiDAR range images, and the outputs may be fused together to project the outputs into three-dimensional (3D) LiDAR point clouds. This 2D and/or 3D information output by the DNN may be provided to an autonomous vehicle drive stack to enable safe planning and control of the autonomous vehicle.

    LANDMARK LOCATION RECONSTRUCTION IN AUTONOMOUS MACHINE APPLICATIONS

    公开(公告)号:US20200334900A1

    公开(公告)日:2020-10-22

    申请号:US16385921

    申请日:2019-04-16

    Abstract: In various examples, locations of directional landmarks, such as vertical landmarks, may be identified using 3D reconstruction. A set of observations of directional landmarks (e.g., images captured from a moving vehicle) may be reduced to 1D lookups by rectifying the observations to align directional landmarks along a particular direction of the observations. Object detection may be applied, and corresponding 1D lookups may be generated to represent the presence of a detected vertical landmark in an image.

    ANALYSIS OF POINT CLOUD DATA USING POLAR DEPTH MAPS AND PLANARIZATION TECHNIQUES

    公开(公告)号:US20190266779A1

    公开(公告)日:2019-08-29

    申请号:US16051219

    申请日:2018-07-31

    Abstract: Various types of systems or technologies can be used to collect data in a 3D space. For example, LiDAR (light detection and ranging) and RADAR (radio detection and ranging) systems are commonly used to generate point cloud data for 3D space around vehicles, for such functions as localization, mapping, and tracking. This disclosure provides improvements for processing the point cloud data that has been collected. The processing improvements include using a three dimensional polar depth map to assist in performing nearest neighbor analysis on point cloud data for object detection, trajectory detection, freespace detection, obstacle detection, landmark detection, and providing other geometric space parameters.

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