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    • 1. 发明申请
    • FORCE COMPENSATION SYSTEMS AND METHODS
    • 强制补偿制度和方法
    • US20120057035A1
    • 2012-03-08
    • US12874924
    • 2010-09-02
    • Shane D. VossJason YostJeffrey D. Schwartz
    • Shane D. VossJason YostJeffrey D. Schwartz
    • H04N5/228
    • H04N5/23212H04N5/2258
    • A positioning system and method are disclosed. The system includes an external force sensor configured to measure a magnitude of at least one external force acting upon a movable object disposed within a camera and to generate a force signal that is indicative of the magnitude of the at least one external force. The system also includes a positioning motor configured to control a physical location of the movable object in response to a positioning signal. The system further includes a position controller configured to generate the positioning signal at a magnitude that is adjusted in response to the force signal to substantially compensate for the at least one external force in controlling the physical location of the movable object.
    • 公开了一种定位系统和方法。 该系统包括外力传感器,其构造成测量作用在设置在照相机内的可移动物体上的至少一个外力的大小,并产生指示至少一个外力的大小的力信号。 该系统还包括定位电动机,其被配置为响应于定位信号来控制可移动物体的物理位置。 该系统还包括位置控制器,该位置控制器被配置成以响应于力信号调整的大小产生定位信号,以在控制可移动物体的物理位置时基本上补偿至少一个外力。
    • 8. 发明授权
    • Detection of flicker within captured imaged frames
    • 捕获成像帧内的闪烁检测
    • US08462229B2
    • 2013-06-11
    • US12895620
    • 2010-09-30
    • Jason YostShane D. VossRobert P. Cazier
    • Jason YostShane D. VossRobert P. Cazier
    • H04N9/73
    • H04N5/2353
    • A readout frequency of a sensor of a digital image capturing device is set based on a frequency of alternating current (AC) mains so that a readout period of the sensor of the digital image capturing device is not an integer multiple of a flicker period. The flicker period is equal to half of a period of the AC mains. A first image frame and a second image frame are captured using the sensor of the digital image capturing device. The second image frame is captured later in time than the first image frame. Whether flicker has occurred in the first and second image frames due to a periodic fluctuation of light emitted by a light source powered by the AC mains is detected by comparing a brightness of an area of the first image frame to a brightness of a corresponding area of the second image frame.
    • 基于交流(AC)电源的频率来设定数字图像捕获装置的传感器的读出频率,使得数字图像捕获装置的传感器的读出周期不是闪烁周期的整数倍。 闪烁周期等于交流电源周期的一半。 使用数字图像捕获装置的传感器捕获第一图像帧和第二图像帧。 第二个图像帧比第一个图像帧在时间上被捕获。 通过将第一图像帧的区域的亮度与第一图像帧的对应区域的亮度进行比较来检测由于由AC电源供电的光源发射的光的周期性波动,在第一和第二图像帧中是否发生闪烁 第二个图像帧。
    • 9. 发明申请
    • Detection of flicker within captured imaged frames
    • 捕获成像帧内的闪烁检测
    • US20120081569A1
    • 2012-04-05
    • US12895620
    • 2010-09-30
    • Jason YostShane D. VossRobert P. Cazier
    • Jason YostShane D. VossRobert P. Cazier
    • H04N9/73
    • H04N5/2353
    • A readout frequency of a sensor of a digital image capturing device is set based on a frequency of alternating current (AC) mains so that a readout period of the sensor of the digital image capturing device is not an integer multiple of a flicker period. The flicker period is equal to half of a period of the AC mains. A first image frame and a second image frame are captured using the sensor of the digital image capturing device. The second image frame is captured later in time than the first image frame. Whether flicker has occurred in the first and second image frames due to a periodic fluctuation of light emitted by a light source powered by the AC mains is detected by comparing a brightness of an area of the first image frame to a brightness of a corresponding area of the second image frame.
    • 基于交流(AC)电源的频率来设定数字图像捕获装置的传感器的读出频率,使得数字图像捕获装置的传感器的读出周期不是闪烁周期的整数倍。 闪烁周期等于交流电源周期的一半。 使用数字图像捕获装置的传感器捕获第一图像帧和第二图像帧。 第二个图像帧比第一个图像帧在时间上被捕获。 通过将第一图像帧的区域的亮度与第一图像帧的对应区域的亮度进行比较来检测由于由AC电源供电的光源发射的光的周期性波动,在第一和第二图像帧中是否发生闪烁 第二个图像帧。