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    • 4. 发明申请
    • CAMERA IMAGE STABILIZATION
    • 相机图像稳定
    • US20130222623A1
    • 2013-08-29
    • US13856865
    • 2013-04-04
    • STMICROELECTRONICS (R&D) LTD.
    • STUART MCLEOD
    • H04N5/232
    • H04N5/23251H04N5/23248H04N5/23254H04N5/23258H04N5/23287
    • A method of motion compensation in a camera may include deriving a motion signal representative of a motion of the camera, processing video frames of a video signal from an image sensor of the camera during a viewfinder mode to derive motion vectors between pairs of frames, and processing the motion signal with a number of combinations of gain and offset factors during the viewfinder mode. The method may also include determining combinations for producing threshold motion vectors, and applying the combination producing the threshold motion vectors for processing the motion signal during a still capture mode to produce a control signal for a motion compensating element for optics of the camera.
    • 在相机中的运动补偿的方法可以包括导出表示相机的运动的运动信号,在取景器模式期间处理来自相机的图像传感器的视频信号的视频帧,以导出帧对之间的运动矢量,以及 在取景器模式期间用增益和偏移因子的多种组合处理运动信号。 该方法还可以包括确定用于产生阈值运动矢量的组合,以及应用产生用于在静止捕捉模式期间处理运动信号的阈值运动矢量的组合以产生用于相机光学装置的运动补偿元件的控制信号。
    • 9. 发明授权
    • Image sensor noise reduction
    • 图像传感器降噪
    • US08279306B2
    • 2012-10-02
    • US11966001
    • 2007-12-28
    • Jeffrey M. Raynor
    • Jeffrey M. Raynor
    • H04N5/235H04N3/14
    • H04N5/357
    • An imaging system includes a plurality of pixels. A pixel readout circuit produces a plurality of first image frames from those pixels. An image output circuit produces a plurality of second image frames and operates to produce a second image frame from more than one of the first image frames. The pixel readout circuit is enabled to produce the first images frames at a rate faster than the image output circuit produces the second image frames. Through combining first image frames, by averaging or other statistical combinations, the photon shot noise of second image frames is reduced. Photon shot noise affects images with high light levels more than those with low light levels and, as such, the system processing alters the rate of first image frames dependent on the current light levels.
    • 成像系统包括多个像素。 像素读出电路从这些像素产生多个第一图像帧。 图像输出电路产生多个第二图像帧并且操作以从多于一个第一图像帧产生第二图像帧。 像素读出电路能够以比图像输出电路产生第二图像帧更快的速率产生第一图像帧。 通过组合第一图像帧,通过平均或其他统计组合,减少了第二图像帧的光子散射噪声。 光子散射噪声影响的光线水平高于低光级的图像,因此,系统处理会根据当前的光照水平改变第一图像帧的速率。