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    • 6. 发明授权
    • Method and apparatus for auto-focusing in image sensor
    • 图像传感器中自动对焦的方法和装置
    • US07969501B2
    • 2011-06-28
    • US12079146
    • 2008-03-25
    • Andrey Lukyanov
    • Andrey Lukyanov
    • G03B13/00
    • G03B3/00H04N5/23212
    • For auto-focusing of a focusing lens within an image sensing system, an N-bin luminance histogram is generated by a digital signal processor from an image. A microprocessor determines a type of the image from the N-bin luminance histogram. The microprocessor also determines a focus position using a first set of at least one focus value if the image is determined to be of a first type. The microprocessor also determines the focus position using a second set of at least one focus value different from the first set if the image is determined to be of a second type.
    • 为了在图像感测系统内自动聚焦聚焦透镜,N-bin亮度直方图由数字信号处理器从图像产生。 微处理器根据N-bin亮度直方图确定图像的类型。 如果图像被确定为第一类型,则微处理器还使用至少一个聚焦值的第一组确定聚焦位置。 如果图像被确定为第二类型,则微处理器还使用不同于第一组的至少一个焦点值的第二组来确定对焦位置。