Uniform illumination image capture
    11.
    发明授权
    Uniform illumination image capture 有权
    均匀照明图像捕获

    公开(公告)号:US09071763B1

    公开(公告)日:2015-06-30

    申请号:US13627080

    申请日:2012-09-26

    Applicant: Google Inc.

    CPC classification number: H04N5/2354 G03B7/17 G03B15/05

    Abstract: Methods and systems are provided for capturing an image having uniform illumination over a range of distances. The system may include a light source, a light sensing array, and an electronic circuit. The method may involve selecting a range of distances from the system, causing the light source to generate a light pulse with a modulated decay, and using the light sensing array to sense an integrated intensity of a reflected light pulse during an exposure time. The reflected light pulse may be provided by the generated light pulse reflecting from an object located at an object distance within the range of distances. The exposure time may be controlled based on the range of distances and the modulated decay such that the integrated intensity of the reflected light pulse is substantially independent of the object distance.

    Abstract translation: 提供了用于捕获在一定距离范围内具有均匀照明的图像的方法和系统。 该系统可以包括光源,光感测阵列和电子电路。 该方法可以包括从系统选择距离范围,使光源产生具有调制衰减的光脉冲,并且使用光感测阵列在曝光时间期间感测反射光脉冲的积分强度。 可以通过从位于距离范围内的物距的物体反射的产生的光脉冲来提供反射光脉冲。 可以基于距离的范围和调制衰减来控制曝光时间,使得反射光脉冲的积分强度基本上不依赖于物体距离。

    Use of position logs of vehicles to determine presence and behaviors of traffic controls
    13.
    发明授权
    Use of position logs of vehicles to determine presence and behaviors of traffic controls 有权
    使用车辆的位置记录来确定交通管制的存在和行为

    公开(公告)号:US08855904B1

    公开(公告)日:2014-10-07

    申请号:US13648282

    申请日:2012-10-10

    Applicant: Google Inc.

    CPC classification number: G08G1/0141 G08G1/0112 G08G1/0129

    Abstract: Methods and devices for using position logs of vehicles to determine the presence and behavior of traffic controls are disclosed. An example method includes receiving movement data that is indicative of movement of a plurality of vehicles through an intersection. The movement data may be received by a computing device and may include, for each respective vehicle, data indicative of the respective vehicle's position as a function of time for multiple instances of time. The method may further include detecting a pattern in the movement data using the computing device. The detected pattern may be indicative of a probable traffic control for the intersection. According to the method, an indication of the probable traffic control for the intersection may be stored in a database.

    Abstract translation: 公开了使用车辆位置记录来确定交通控制的存在和行为的方法和装置。 示例性方法包括接收指示多个车辆通过交叉路口的移动的运动数据。 移动数据可以由计算设备接收,并且对于每个相应的车辆,可以包括指示相应车辆的位置作为多个时间实例的时间的函数的数据。 该方法还可以包括使用计算设备来检测运动数据中的模式。 检测到的模式可以指示交叉口的可能的交通控制。 根据该方法,可以将数据库中存储交叉路口可能的交通控制的指示。

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