公开(公告)号：US08441549B2

公开(公告)日：2013-05-14

申请号：US12825101

申请日：2010-06-28

申请人： Yi He ,  Stuart William Milton ,  Todd Nelson Schoepflin ,  Andrew Juenger ,  Roy Goh ,  Douglas L. Beck

发明人： Yi He ,  Stuart William Milton ,  Todd Nelson Schoepflin ,  Andrew Juenger ,  Roy Goh ,  Douglas L. Beck

IPC分类号： H04N9/73 ,  H04N5/00

CPC分类号： H04N9/73

摘要： A method for suppressing banding and rolling flicker in video acquired by a video camera. The method comprises acquiring a plurality of video frames and assessing an amount of rolling flicker in the plurality of video frames. The method further comprises configuring the video camera to quiet banding and rolling flicker responsive to periodic illumination at a first frequency if the amount of rolling flicker is above a threshold, and, configuring the video camera to quiet banding and rolling flicker responsive to periodic illumination at a second frequency if the amount of rolling flicker is below the threshold.

摘要翻译： 一种用于抑制由摄像机获取的视频中的条纹和滚动闪烁的方法。 该方法包括获取多个视频帧并评估多个视频帧中的滚动闪烁量。 该方法还包括：如果滚动闪烁量高于阈值，则响应于第一频率的周期性照明，将摄像机配置为安静的条带和滚动闪烁，以及响应于周期性照明而将摄像机配置为安静的条带和滚动闪烁 如果滚动闪烁量低于阈值，则为第二频率。

公开(公告)号：US08330829B2

公开(公告)日：2012-12-11

申请号：US12755952

申请日：2010-04-07

申请人： Roy Goh ,  Andrew Juenger ,  Yi He ,  Stuart William Milton

发明人： Roy Goh ,  Andrew Juenger ,  Yi He ,  Stuart William Milton

IPC分类号： H04N9/73

CPC分类号： H04N5/2357

摘要： One disclosed embodiment includes detecting flicker in a photographic setting. A plurality of samples are obtained from a light detector circuit of a camera, each of which has a value that is dependent upon intensity of light incident upon the camera. The method further includes processing the samples to identify whether the incident light is varying in intensity at one or more pre-selected frequencies. The processing may include multiplying the samples with one or more periodic signals to generate scalar product outputs, and analyzing the scalar product outputs to ascertain the presence of periodic flicker.

摘要翻译： 一个公开的实施例包括检测摄影设置中的闪烁。 从照相机的光检测器电路获得多个样本，每个样本具有取决于入射到照相机上的光的强度的值。 该方法还包括处理样本以识别入射光是否在一个或多个预选频率处的强度变化。 该处理可以包括将样本与一个或多个周期性信号相乘以产生标量产物输出，以及分析标量乘积输出以确定周期性闪烁的存在。

公开(公告)号：US20110187893A1

公开(公告)日：2011-08-04

申请号：US12825101

申请日：2010-06-28

申请人： Yi He ,  Stuart William Milton ,  Todd Nelson Schoepflin ,  Andrew Juenger ,  Roy Goh ,  Douglas L. Beck

发明人： Yi He ,  Stuart William Milton ,  Todd Nelson Schoepflin ,  Andrew Juenger ,  Roy Goh ,  Douglas L. Beck

IPC分类号： H04N9/73

CPC分类号： H04N9/73

摘要： A method for suppressing banding and rolling flicker in video acquired by a video camera. The method comprises acquiring a plurality of video frames and assessing an amount of rolling flicker in the plurality of video frames. The method further comprises configuring the video camera to quiet banding and rolling flicker responsive to periodic illumination at a first frequency if the amount of rolling flicker is above a threshold, and, configuring the video camera to quiet banding and rolling flicker responsive to periodic illumination at a second frequency if the amount of rolling flicker is below the threshold.

摘要翻译： 一种用于抑制由摄像机获取的视频中的条纹和滚动闪烁的方法。 该方法包括获取多个视频帧并评估多个视频帧中的滚动闪烁量。 该方法还包括：如果滚动闪烁量高于阈值，则响应于第一频率的周期性照明，将摄像机配置为安静的条带和滚动闪烁，以及响应于周期性照明而将摄像机配置为安静的条带和滚动闪烁 如果滚动闪烁量低于阈值，则为第二频率。

公开(公告)号：US20110157415A1

公开(公告)日：2011-06-30

申请号：US12755952

申请日：2010-04-07

申请人： Roy Goh ,  Andrew Juenger ,  Yi He ,  Stuart William Milton

发明人： Roy Goh ,  Andrew Juenger ,  Yi He ,  Stuart William Milton

IPC分类号： H04N9/73

CPC分类号： H04N5/2357

摘要： One disclosed embodiment includes detecting flicker in a photographic setting. A plurality of samples are obtained from a light detector circuit of a camera, each of which has a value that is dependent upon intensity of light incident upon the camera. The method further includes processing the samples to identify whether the incident light is varying in intensity at one or more pre-selected frequencies. The processing may include multiplying the samples with one or more periodic signals to generate scalar product outputs, and analyzing the scalar product outputs to ascertain the presence of periodic flicker.

摘要翻译： 一个公开的实施例包括检测摄影设置中的闪烁。 从照相机的光检测器电路获得多个样本，每个样本具有取决于入射到照相机上的光的强度的值。 该方法还包括处理样本以识别入射光是否在一个或多个预选频率处的强度变化。 该处理可以包括将样本与一个或多个周期性信号相乘以产生标量产物输出，以及分析标量乘积输出以确定周期性闪烁的存在。