DETECTION OF OBJECTS IN LIDAR POINT CLOUDS

    公开(公告)号:US20250086802A1

    公开(公告)日:2025-03-13

    申请号:US18434501

    申请日:2024-02-06

    Applicant: TuSimple, Inc.

    Abstract: A method of processing point cloud information includes converting points in a point cloud obtained from a lidar sensor into a voxel grid, generating, from the voxel grid, sparse voxel features by applying a multi-layer perceptron and one or more max pooling layers that reduce dimension of input data; applying a cascade of an encoder that performs a N-stage sparse-to-dense feature operation, a global context pooling (GCP) module, and an M-stage decoder that performs a dense-to-sparse feature generation operation. The GCP module bridges an output of a last stage of the N-stages with an input of a first stage of the M-stages, where N and M are positive integers. The GCP module comprises a multi-scale feature extractor; and performing one or more perception operations on an output of the M-stage decoder and/or an output of the GCP module.

    RADAR AND LIDAR BASED DRIVING TECHNOLOGY
    3.
    发明公开

    公开(公告)号:US20230184931A1

    公开(公告)日:2023-06-15

    申请号:US17987200

    申请日:2022-11-15

    Applicant: TuSimple, Inc.

    CPC classification number: G01S13/931 G01S13/89 G01S17/931 G01S17/89 G01S13/865

    Abstract: Vehicles can include systems and apparatus for performing signal processing on sensor data from radar(s) and LiDAR(s) located on the vehicles. A method includes obtaining and filtering radar point cloud data of an area in an environment in which a vehicle is operating on a road to obtain filtered radar point cloud data; obtaining a light detection and ranging point cloud data of at least some of the area, where the light detection and ranging point cloud data include information about a bounding box that surrounds an object on the road; determining a set of radar point cloud data that are associated with the bounding box that surrounds the object; and causing the vehicle to operate based on one or more characteristics of the object determined from the set of radar point cloud data.

    SYSTEM AND METHOD FOR ONLINE REAL-TIME MULTI-OBJECT TRACKING

    公开(公告)号:US20190266420A1

    公开(公告)日:2019-08-29

    申请号:US15906561

    申请日:2018-02-27

    Applicant: TuSimple

    Abstract: A system and method for online real-time multi-object tracking is disclosed. A particular embodiment can be configured to: receive image frame data from at least one camera associated with an autonomous vehicle; generate similarity data corresponding to a similarity between object data in a previous image frame compared with object detection results from a current image frame; use the similarity data to generate data association results corresponding to a best matching between the object data in the previous image frame and the object detection results from the current image frame; cause state transitions in finite state machines for each object according to the data association results; and provide as an output object tracking output data corresponding to the states of the finite state machines for each object.

    IMAGE FUSION FOR AUTONOMOUS VEHICLE OPERATION

    公开(公告)号:US20240046654A1

    公开(公告)日:2024-02-08

    申请号:US18489306

    申请日:2023-10-18

    Applicant: TUSIMPLE, INC.

    Abstract: Devices, systems and methods for fusing scenes from real-time image feeds from on-vehicle cameras in autonomous vehicles to reduce redundancy of the information processed to enable real-time autonomous operation are described. One example of a method for improving perception in an autonomous vehicle includes receiving a plurality of cropped images, wherein each of the plurality of cropped images comprises one or more bounding boxes that correspond to one or more objects in a corresponding cropped image; identifying, based on the metadata in the plurality of cropped images, a first bounding box in a first cropped image and a second bounding box in a second cropped image, wherein the first and second bounding boxes correspond to a common object; and fusing the metadata corresponding to the common object from the first cropped image and the second cropped image to generate an output result for the common object.

    SENSOR LAYOUT TECHNIQUES
    6.
    发明公开

    公开(公告)号:US20230266759A1

    公开(公告)日:2023-08-24

    申请号:US18167993

    申请日:2023-02-13

    Applicant: TuSimple, Inc.

    CPC classification number: G05D1/0088 G05D2201/0213

    Abstract: A system installed in a vehicle includes a first group of sensing devices configured to allow a first level of autonomous operation of the vehicle; a second group of sensing devices configured to allow a second level of autonomous operation of the vehicle, the second group of sensing devices including primary sensing devices and backup sensing devices; a third group of sensing devices configured to allow the vehicle to perform a safe stop maneuver; and a control element communicatively coupled to the first group of sensing devices, the second group of sensing devices, and the third group of sensing devices. The control element is configured to: receive data from at least one of the first group, the second group, or the third group of sensing devices, and provide a control signal to a sensing device based on categorization information indicating a group to which the sensing device belongs.

    AUTONOMOUS DRIVING CRASH PREVENTION

    公开(公告)号:US20210403050A1

    公开(公告)日:2021-12-30

    申请号:US17359007

    申请日:2021-06-25

    Applicant: TUSIMPLE, INC.

    Abstract: Autonomous vehicles must accommodate various road configurations such as straight roads, curved roads, controlled intersections, uncontrolled intersections, and many others. Autonomous driving systems must make decisions about the speed and distance of traffic and about obstacles including obstacles that obstruct the view of the autonomous vehicle's sensors. For example, at intersections, the autonomous driving system must identify vehicles in the path of the autonomous vehicle or potentially in the path based on a planned path, estimate the distance to those vehicles, and estimate the speeds of those vehicles. Then, based on those and the road configuration and environmental conditions, the autonomous driving system must decide whether it is safe to proceed along the planned path or not, and when it is safe to proceed.

    SYSTEM AND METHOD FOR LATERAL VEHICLE DETECTION

    公开(公告)号:US20210342602A1

    公开(公告)日:2021-11-04

    申请号:US17377206

    申请日:2021-07-15

    Applicant: TUSIMPLE, INC.

    Abstract: A system and method for lateral vehicle detection is disclosed. A particular embodiment can be configured to: receive lateral image data from at least one laterally-facing camera associated with an autonomous vehicle; warp the lateral image data based on a line parallel to a side of the autonomous vehicle; perform object extraction on the warped lateral image data to identify extracted objects in the warped lateral image data; and apply bounding boxes around the extracted objects.

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