Lane mask generation for autonomous machine

    公开(公告)号:US12249163B2

    公开(公告)日:2025-03-11

    申请号:US17234487

    申请日:2021-04-19

    Abstract: In various examples, object fence corresponding to objects detected by an ego-vehicle may be used to determine overlap of the object fences with lanes on a driving surface. A lane mask may be generated corresponding to the lanes on the driving surface, and the object fences may be compared to the lanes of the lane mask to determine the overlap. Where an object fence is located in more than one lane, a boundary scoring approach may be used to determine a ratio of overlap of the boundary fence, and thus the object, with each of the lanes. The overlap with one or more lanes for each object may be used to determine lane assignments for the objects, and the lane assignments may be used by the ego-vehicle to determine a path or trajectory along the driving surface.

    GRAPHS FOR NON-HOLONOMIC MOTION PLANNING FOR AUTONOMOUS SYSTEMS AND APPLICATIONS

    公开(公告)号:US20240400098A1

    公开(公告)日:2024-12-05

    申请号:US18674639

    申请日:2024-05-24

    Inventor: David Nister

    Abstract: Path planning may be performed under non-holonomic constraints based at least on discretizing and selectively analyzing a solution space using a graph that includes vertices corresponding to machine configurations in a configuration space, along with associated maneuver types used by the machine to traverse these configurations. The graph may include transition edges associating costs with machine transitions between maneuver types and maneuvers. One or more of the vertices may correspond to a transition state between maneuver types. In some examples, a maneuver type may be used as a transition state between maneuver types to reduce the vertices and edges of the graph. The graph may incorporate vertices and edges representing optimal maneuver types for traversing the configuration space, including longitudinally extremal and/or laterally extremal maneuvers based on machine models.

    PATH PERCEPTION DIVERSITY AND REDUNDANCY IN AUTONOMOUS MACHINE APPLICATIONS

    公开(公告)号:US20240339035A1

    公开(公告)日:2024-10-10

    申请号:US18745370

    申请日:2024-06-17

    CPC classification number: G08G1/167 G06F18/23 G06N3/08 G06V20/588

    Abstract: In various examples, a path perception ensemble is used to produce a more accurate and reliable understanding of a driving surface and/or a path there through. For example, an analysis of a plurality of path perception inputs provides testability and reliability for accurate and redundant lane mapping and/or path planning in real-time or near real-time. By incorporating a plurality of separate path perception computations, a means of metricizing path perception correctness, quality, and reliability is provided by analyzing whether and how much the individual path perception signals agree or disagree. By implementing this approach—where individual path perception inputs fail in almost independent ways—a system failure is less statistically likely. In addition, with diversity and redundancy in path perception, comfortable lane keeping on high curvature roads, under severe road conditions, and/or at complex intersections, as well as autonomous negotiation of turns at intersections, may be enabled.

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