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    • 7. 发明申请
    • METHOD, SYSTEM AND APPARATUS FOR A TIME STAMPED VISUAL MOTION SENSOR
    • 用于时间标记的视觉运动传感器的方法,系统和设备
    • WO2006078861A2
    • 2006-07-27
    • PCT/US2006/001970
    • 2006-01-18
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMZHANG, GuangbinLIU, Jin
    • ZHANG, GuangbinLIU, Jin
    • G08B13/18C12Q1/68G06M7/00G08B21/00G06K9/00H04N7/18
    • G06T7/246G06T2200/28
    • The present invention provides a method, system and apparatus for a time stamped visual motion sensor that provides a compact pixel size, higher speed motion detection and accuracy in velocity computation, high resolution, low power integration and reduces the data transfer and computation load of the following digital processor. The present invention provides a visual motion sensor cell that includes a photosensor, an edge detector connected to the photosensor and a time stamp component connected to the edge detector. The edge detector receives inputs from the photosensor and generates a pulse when a moving edge is detected. The time stamp component tracks a time signal and samples a time voltage when the moving edge is detected. The sampled time voltage can be stored until the sampled time voltage is read. In addition, the edge detector can be connected to one or more neighboring photosensors to improve sensitivity and robustness.
    • 本发明提供了一种用于时间标记的视觉运动传感器的方法,系统和设备,其提供了紧凑的像素尺寸,更高速度的运动检测和速度计算精度,高分辨率,低功率积分并减少 以下数字处理器的数据传输和计算负载。 本发明提供一种视觉运动传感器单元,其包括光电传感器,连接到光电传感器的边缘检测器和连接到边缘检测器的时间戳部件。 边缘检测器接收来自光电传感器的输入,并在检测到移动边缘时产生脉冲。 时间标记组件追踪时间信号并在检测到运动边缘时采样时间电压。 采样时间电压可以被存储直到读取采样时间电压。 此外,边缘检测器可以连接到一个或多个相邻的光电传感器,以提高灵敏度和鲁棒性。