| 摘要 |
An auto-focus method, medium, and apparatus for image-capturing. The auto-focus method includes obtaining a first image by placing a focus lens of a corresponding image-capturing apparatus at a first fixed position, obtaining a second image by placing the focus lens at a second fixed position; calculating blur levels of the first and second images, and determining a position of the focus lens by substituting the blur levels of the first and second images into each of a plurality of blur level relational expressions, which are derived from a plurality of pairs of images of respective corresponding objects at different distances from an image sensor module, each of the pairs of images being obtained by placing the focus lens at the first and second fixed positions, respectively.
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