| 摘要 |
A method, in which a rapid autofocusing device according to an embodiment of the present invention performs the autofocusing, comprises; a step in which an image loading module extracts an input image for the autofocusing; a step in which an image conversion module converts the extracted input image into a binary image; a step in which a focus value calculation module calculates a focusing degree at each lens position by performing a binary calculation for a partial pixel or all pixels of the binary image; and a step in which a lens moving module moves a lens by receiving a control value for the calculated focusing degree and positions the lens at an accurate focus position. The purpose of the present invention is to provide a method capable of increasing a focusing speed by using a binary image in an autofocusing device of a camera module. |
