METHOD FOR CORRECTING DISTORTED IMAGE OBTAINED FROM FISH-EYE LENS BY USING CONCENTRIC CIRCULAR STANDARD PATTERN

摘要

The present invention relates to a method for correcting a distorted image obtained from a fish-eye lens. According to the present invention, the method for correcting a distorted image obtained from a fish-eye lens by using a concentric circular standard pattern comprises the following steps: obtaining a second-dimensional image before correction through an oval fish-eye lens having an angle of view greater than or equal to 180 degrees, and arranging the image on a first plane; generating a three-dimensional oval image corresponding to the oval fish-eye lens; mapping a first coordinate of the image before correction to a second coordinate one to one by vertically reflecting the image before correction on the three-dimensional oval image; and mapping the second coordinate to a third coordinate one to one on a plane identical to the first plane by extending the second coordinate from an optical center point of the three-dimensional oval image, and correcting a distorted image of the image before correction to an image after correction.;COPYRIGHT KIPO 2016