Detecting objects based on reflectivity fingerprints

    公开(公告)号:US10776639B2

    公开(公告)日:2020-09-15

    申请号:US16456942

    申请日:2019-06-28

    摘要: A LIDAR system for detecting a vehicle may include a processor configured to: scan a field of view (FOV) by controlling movement of at least one deflector at which at least one light source is directed; receive from at least one sensor signals indicative of light reflected from a particular object in the FOV; detect, based on time of flight in the received signals, portions of the particular object in the FOV that are similarly spaced from the light source; determine, based on the detected portions, at least a first portion having a first reflectivity corresponding to a license plate, and at least two additional spaced-apart portions corresponding to locations on the particular object other than a location of the first portion; and based on a spatial relationship and a reflectivity relationship between the first portion and the at least two additional portions, classify the particular object as a vehicle.

    TEMPERATURE BASED CONTROL IN LIDAR
    6.
    发明申请

    公开(公告)号:US20180143308A1

    公开(公告)日:2018-05-24

    申请号:US15861206

    申请日:2018-01-03

    摘要: A LIDAR system for use in a vehicle may include at least one light source configured to project light toward a field of view for illuminating a plurality of objects in an environment of a vehicle and at least one processor configured to control the at least one light source in a manner enabling light flux of light from the at least one light source to vary over scans of a plurality of portions of the field of view. The LIDAR system may receive information indicating that a temperature associated with at least one system component exceeds a threshold, and in response to the received information indicating the temperature exceeding the threshold, modify an illumination ratio between two portions of the field of view such that during at least one subsequent scanning cycle less light is delivered to the field of view than in a prior scanning cycle.

    DETECTOR-ARRAY BASED SCANNING LIDAR
    7.
    发明申请

    公开(公告)号:US20180128920A1

    公开(公告)日:2018-05-10

    申请号:US15860964

    申请日:2018-01-03

    IPC分类号: G01S17/42 G01S7/481 G01S7/486

    摘要: A LIDAR system is provided. The LIDAR system comprises at least one processor configured to: control light emission of a light source; scan a field of view by repeatedly moving at least one light deflector located in an outbound path of the light source; while the at least one deflector is in a particular instantaneous position, receive via the at least one deflector, reflections of a single light beam spot along a return path to a sensor; receive from the sensor on a beam-spot-by-beam-spot basis, signals associated with an image of each light beam-spot, wherein the sensor includes a plurality of detectors and wherein a size of each detector is smaller than the image of each light beam-spot; and determine, from signals resulting from the impingement on the plurality of detectors, at least two differing range measurements associated with the image of the single light beam-spot.