OBJECT TRACKING USING LIDAR DATA FOR AUTONOMOUS MACHINE APPLICATIONS

    公开(公告)号:US20230054759A1

    公开(公告)日:2023-02-23

    申请号:US17409052

    申请日:2021-08-23

    Abstract: In various examples, an obstacle detector is capable of tracking a velocity state of detected objects or obstacles using LiDAR data. For example, using LiDAR data alone, an iterative closest point (ICP) algorithm may be used to determine a current state of detected objects for a current frame and a Kalman filter may be used to maintain a tracked state of the one or more objects detected over time. The obstacle detector may be configured to estimate velocity for one or more detected objects, compare the estimated velocity to one or more previous tracked states for previously detected objects, determine that the detected objects corresponds to a certain previously detected object, and update the tracked state for the previously detected object with the estimated velocity.

    BELIEF PROPAGATION FOR RANGE IMAGE MAPPING IN AUTONOMOUS MACHINE APPLICATIONS

    公开(公告)号:US20230033470A1

    公开(公告)日:2023-02-02

    申请号:US17392050

    申请日:2021-08-02

    Abstract: In various examples, systems and methods are described that generate scene flow in 3D space through simplifying the 3D LiDAR data to “2.5D” optical flow space (e.g., x, y, and depth flow). For example, LiDAR range images may be used to generate 2.5D representations of depth flow information between frames of LiDAR data, and two or more range images may be compared to generate depth flow information, and messages may be passed—e.g., using a belief propagation algorithm—to update pixel values in the 2.5D representation. The resulting images may then be used to generate 2.5D motion vectors, and the 2.5D motion vectors may be converted back to 3D space to generate a 3D scene flow representation of an environment around an autonomous machine.

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