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    • 32. 发明授权
    • Image pickup method and image pickup apparatus
    • 图像拾取方法和图像拾取装置
    • US08860863B2
    • 2014-10-14
    • US13110332
    • 2011-05-18
    • Kazuhiko NakamuraYutaka Muto
    • Kazuhiko NakamuraYutaka Muto
    • H04N5/335H04N5/361
    • H04N5/361H04N5/335
    • An image pickup method using an image pickup apparatus having a charge coupled device (CCD) image pickup device, the method includes: acquiring an effective pixel signal from effective pixels of a light-receiving face of the CCD image pickup device; acquiring a signal outputted from shaded pixels of the light-receiving face to calculate a representative value of the signal; controlling a variable gain amplification above a vertical period of the effective pixel signal in plus correlation with an average above the vertical period of the representative value; and controlling a variable gain amplification of a horizontal period of the effective pixel signal in minus correlation with a ratio between a value of a horizontal period of the representative value or a recursive average in screens of the representative value and an average above a vertical period of the representative value.
    • 一种使用具有电荷耦合器件(CCD)图像拾取器件的图像拾取装置的图像拾取方法,该方法包括:从CCD图像拾取器件的光接收面的有效像素获取有效像素信号; 获取从所述受光面的阴影像素输出的信号,以计算所述信号的代表值; 控制有效像素信号的垂直周期之上的可变增益放大与代表值的垂直周期之上的平均值正相关; 并且控制有效像素信号的水平周期的可变增益放大与代表值的屏幕中的代表值的水平周期的值或递归平均值之间的比值相对于垂直周期的平均值 代表价值。