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    • 24. 发明授权
    • Auto-focusing method
    • 自动对焦方式
    • US4561747A
    • 1985-12-31
    • US620707
    • 1984-06-14
    • Yoshimi OhnoIkuya Tsurukawa
    • Yoshimi OhnoIkuya Tsurukawa
    • G02B7/34G02B7/28G02B7/30G02B27/40G03B3/00
    • G02B7/30G02B27/40
    • An auto-focusing method includes a scanning step for scanning a pair of solid-state image sensors on which light from a subject of interest impinges as passing through a focusing lens, an A/D conversion step, a Fourier transformation step, a convolution operation step, a peak detection step for determining an amount of displacement of said lens from the results of said convolution, and a lens displacement step for displacing said lens according to the displacement amount thus determined. The present auto-focusing method is least susceptible to noises and not adversely affected by differences in contrast of the subject of interest.
    • 自动对焦方法包括:扫描步骤,用于扫描来自感兴趣对象的光照射通过聚焦透镜的一对固态图像传感器,A / D转换步骤,傅里叶变换步骤,卷积运算 步骤,用于根据所述卷积的结果确定所述透镜的位移量的峰值检测步骤,以及用于根据如此确定的位移量移位所述透镜的透镜位移步骤。 目前的自动对焦方法最不易受到噪声的影响,并且不受感兴趣对象的差异的不利影响。