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    System and assessment of reflective objects along a roadway
    1.
    发明授权
    System and assessment of reflective objects along a roadway 有权
    沿道路的反光物体的系统和评估

    公开(公告)号：US08860944B2

    公开(公告)日：2014-10-14

    申请号：US14025614

    申请日：2013-09-12

    Applicant: Facet Technology Corp.

    Inventor： Jamie E. Retterath ,  Robert A. Laumeyer

    IPC: G01N21/55 ,  G08G1/0967

    CPC classification number: G01N21/251 ,  G01N21/55 ,  G01N21/84 ,  G01N2201/06113 ,  G01N2201/102 ,  G01N2201/12 ,  G01S17/06 ,  G06K9/00791 ,  G06K9/00818 ,  G06K9/2036 ,  G06K9/4652 ,  G06K9/4661 ,  G08G1/096758 ,  G08G1/096783

    Abstract: A system for the assessment of reflective surfaces disposed along a roadway repeatedly illuminates an area along the roadway that includes at least one reflective surface using a light source. Multiple light intensity values are measured over a field of view which includes at least a portion of the area illuminated by the light source. A computer processing system is used to identifying a portion of the light intensity values associated with a reflective surface and analyze the portion of the light intensity values to determine assessment for that reflective surface. In one embodiment, a virtual nighttime drive through along a roadway is simulated using a plurality of intensity values to simulate reflections from each reflective surface disposed along the roadway during the virtual drive through.

    Abstract translation: 用于评估沿着道路设置的反射表面的系统重复地使用光源照亮包括至少一个反射表面的道路的区域。 在包括由光源照射的区域的至少一部分的视野中测量多个光强度值。 计算机处理系统用于识别与反射表面相关联的光强度值的一部分，并且分析光强值的部分以确定该反射表面的评估。 在一个实施例中，使用多个强度值来模拟沿着道路的虚拟夜间驱动，以模拟在虚拟驱动通过期间沿着道路设置的每个反射表面的反射。

    Methods and Apparatus for Array Based Lidar Systems with Reduced Interference
    2.
    发明申请
    Methods and Apparatus for Array Based Lidar Systems with Reduced Interference 审中-公开
    具有减少干扰的阵列激光雷达系统的方法和装置

    公开(公告)号：US20150131080A1

    公开(公告)日：2015-05-14

    申请号：US14078001

    申请日：2013-11-12

    Applicant: Facet Technology Corp.

    Inventor： Jamie E. Retterath ,  Robert A. Laumeyer

    IPC: G01S17/93 ,  G01S17/06

    CPC classification number: G01S7/4815 ,  G01S7/4863 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/93

    Abstract: An array-based light detection and ranging (LiDAR) unit includes an array of emitter/detector sets configured to cover a field of view for the unit. Each emitter/detector set emits and receives light energy on a specific coincident axis unique for that emitter/detector set. A control system coupled to the array of emitter/detector sets controls initiation of light energy from each emitter and processes time of flight information for light energy received on the coincident axis by the corresponding detector for the emitter/detector set. The time of flight information provides imaging information corresponding to the field of view. Interference among light energy is reduced with respect to detectors in the LiDAR unit not corresponding to the specific coincident axis, and with respect to other LiDAR units and ambient sources of light energy. In one embodiment, multiple array-based LiDAR units are used as part of a control system for an autonomous vehicle.

    Abstract translation: 基于阵列的光检测和测距（LiDAR）单元包括被配置为覆盖该单元的视场的发射器/检测器组的阵列。 每个发射器/检测器发射和接收在该发射器/检测器组唯一的特定重合轴上的光能。 耦合到发射器/检测器组阵列的控制系统控制来自每个发射器的光能的起始，并且通过用于发射器/检测器组的相应检测器处理在重合轴上接收的光能的飞行时间信息。 飞行时间信息提供对应于视场的成像信息。 相对于不对应于特定重合轴的LiDAR单元中的检测器，以及相对于其它LiDAR单元和环境光能源，光能量之间的干扰减小。 在一个实施例中，多个基于阵列的LiDAR单元被用作用于自主车辆的控制系统的一部分。

    System and Assessment of Reflective Objects Along a Roadway
    3.
    发明申请
    System and Assessment of Reflective Objects Along a Roadway 有权
    巷道反光物体的系统和评估

    公开(公告)号：US20140036269A1

    公开(公告)日：2014-02-06

    申请号：US14025614

    申请日：2013-09-12

    Applicant: Facet Technology Corp.

    Inventor： Jamie E. Retterath ,  Robert A. Laumeyer

    IPC: G01N21/55

    CPC classification number: G01N21/251 ,  G01N21/55 ,  G01N21/84 ,  G01N2201/06113 ,  G01N2201/102 ,  G01N2201/12 ,  G01S17/06 ,  G06K9/00791 ,  G06K9/00818 ,  G06K9/2036 ,  G06K9/4652 ,  G06K9/4661 ,  G08G1/096758 ,  G08G1/096783

    Abstract: A system for the assessment of reflective surfaces disposed along a roadway repeatedly illuminates an area along the roadway that includes at least one reflective surface using a light source. Multiple light intensity values are measured over a field of view which includes at least a portion of the area illuminated by the light source. A computer processing system is used to identifying a portion of the light intensity values associated with a reflective surface and analyze the portion of the light intensity values to determine assessment for that reflective surface. In one embodiment, a virtual nighttime drive through along a roadway is simulated using a plurality of intensity values to simulate reflections from each reflective surface disposed along the roadway during the virtual drive through.

    Abstract translation: 用于评估沿着道路设置的反射表面的系统重复地使用光源照亮包括至少一个反射表面的道路的区域。 在包括由光源照射的区域的至少一部分的视野中测量多个光强度值。 计算机处理系统用于识别与反射表面相关联的光强度值的一部分，并且分析光强值的部分以确定该反射表面的评估。 在一个实施例中，使用多个强度值来模拟沿着道路的虚拟夜间驱动，以模拟在虚拟驱动通过期间沿着道路设置的每个反射表面的反射。

    SYSTEM FOR THE DETERMINATION OF RETROREFLECTIVITY OF ROAD SIGNS AND OTHER REFLECTIVE OBJECTS
    4.
    发明申请
    SYSTEM FOR THE DETERMINATION OF RETROREFLECTIVITY OF ROAD SIGNS AND OTHER REFLECTIVE OBJECTS 有权
    确定道路标志和其他反射物体的回归性的系统

    公开(公告)号：US20130271613A1

    公开(公告)日：2013-10-17

    申请号：US13781017

    申请日：2013-02-28

    Applicant: Facet Technology Corp.

    Inventor： Jamie E. Retterath ,  Robert A. Laumeyer

    IPC: G01N21/55

    CPC classification number: G01N21/251 ,  G01N21/55 ,  G01N21/84 ,  G01N2201/06113 ,  G01N2201/102 ,  G01N2201/12 ,  G01S17/06 ,  G06K9/00791 ,  G06K9/00818 ,  G06K9/2036 ,  G06K9/4652 ,  G06K9/4661 ,  G08G1/096758 ,  G08G1/096783

    Abstract: A system for the determination of retroreflectivity values for reflective surfaces disposed along a roadway repeatedly illuminates an area along the roadway that includes at least one reflective surface using a light source. Multiple light intensity values are measured over a field of view which includes at least a portion of the area illuminated by the light source. A computer processing system is used to identifying a portion of the light intensity values associated with a reflective surface and analyze the portion of the light intensity values to determine at least one retroreflectivity value for that reflective surface.

    Abstract translation: 用于确定沿着道路设置的反射表面的后向反射率值的系统重复地照亮使用光源的包括至少一个反射表面的沿道路的区域。 在包括由光源照射的区域的至少一部分的视野中测量多个光强度值。 计算机处理系统用于识别与反射表面相关联的光强值的一部分，并且分析光强度值的该部分以确定该反射表面的至少一个后向反射率值。

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