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    • 16. 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。
    • 17. 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。