HORIZON DETECTION TO SUPPORT AN AIRCRAFT ON A MISSION IN AN ENVIRONMENT

    公开(公告)号:US20250042545A1

    公开(公告)日:2025-02-06

    申请号:US18919611

    申请日:2024-10-18

    Inventor: Andrew Heafitz

    Abstract: A method is provided for horizon detection. The method includes acquiring an image that depicts a view of an environment, and defining a line pattern of lines that divide the image into respective pairs of image segments. The line pattern is formed of lines that are parallel, or intersecting at a common point of intersection. The method incudes searching the lines of the line pattern to identify one of the lines as an estimated true horizon in the image that divides the image into a respective pair of image segments at a boundary of greatest difference in average brightness between the image segments from among the respective pairs of image segments. The method includes determining true horizon in the image from the estimated true horizon. The method may also include an evaluation of the estimated true horizon or the true horizon as to verify one or more expected characteristics.

    EVALUATION OF A GROUND REGION FOR LANDING A ROBOT

    公开(公告)号:US20240310185A1

    公开(公告)日:2024-09-19

    申请号:US18673760

    申请日:2024-05-24

    CPC classification number: G01C21/3826 G05D1/46 G06F17/16 G06F18/232 G06V20/13

    Abstract: A method of supporting robot(s) landing within a ground region is provided. The method includes accessing a map in which the ground region is tessellated into cells covering respective areas of the ground region. Each cell is classified as feasible to indicate a respective area is feasible for landing, or infeasible to indicate the respective area is infeasible for landing. The map is searched for clusters of adjoining cells that are classified as feasible, covering clusters of adjoining areas that define sub-regions within the ground region that are feasible for landing. The sub-regions are ranked according to a cost metric, and one of the sub-regions is selected according to the ranking. A geographic position of the selected sub-region is then output for use in at least one of guidance, navigation or control of the robot(s) to land at the selected sub-region within the ground region.

    DIGITAL VIDEO COMPUTING SYSTEM FOR VEHICLE

    公开(公告)号:US20220383515A1

    公开(公告)日:2022-12-01

    申请号:US17658369

    申请日:2022-04-07

    Inventor: Igor Janjic

    Abstract: A digital video computing system receives two or more frames depicting an environment from a camera system of a vehicle. For a salient image feature identified in the two or more frames, a global motion vector is calculated that is indicative of movement of the feature at least partially attributable to movement of the vehicle. A local motion vector is calculated that is indicative of movement of the feature independent from the movement of the vehicle. Based on the local motion vector, the salient image feature is determined to have an apparent motion relative to the environment that is independent from the movement of the vehicle. A candidate image patch is identified including the salient image feature. The candidate image patch is analyzed to output a likelihood that the candidate image patch depicts a second vehicle.

    FAULT-TOLERANT POWER DISTRIBUTION WITH POWER SOURCE SELECTION IN A VEHICLE

    公开(公告)号:US20220250759A1

    公开(公告)日:2022-08-11

    申请号:US17457378

    申请日:2021-12-02

    Abstract: A vehicle is provided that includes a basic structure; and coupled to the basic structure, a plurality of power sources, a propulsion system and power distribution circuitry. The propulsion system includes a plurality of electric motors configured to power a plurality of propulsors to generate propulsive forces that cause the vehicle to move. The power distribution circuitry is configured to deliver direct current electric power from the plurality of power sources to the plurality of electric motors. The power distribution circuitry electrically couples the plurality of power sources to the plurality of electric motors in an interleaved topology in which electric motors of the plurality of electric motors are alternately, electrically coupled to power sources of the plurality of power sources. Each of the electric motors in the interleaved topology is electrically coupled to a different one of the power sources than immediately adjacent ones of the electric motors.

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