APPARATUS AND METHOD FOR CORRECTING IMAGE DISTORTION

摘要

The present invention relates to an apparatus and a method for correcting an image distortion and, more specifically, to an apparatus and a method for correcting an image distortion in which a distortion of an image captured by a fisheye lens is corrected. The image distortion correcting method comprises: a first estimating step to estimate a center pixel and a radius of an image obtained through the fisheye lens; a second estimating step to estimate a distortion correction parameter from a test image captured by the fisheye lens; and correcting the distortion using the radius and the distortion correction parameter based on an index considering vertical movement and rotation of a set region of interest. [Reference numerals] (AA) Start; (BB) End; (S100) Estimating a center pixel and a radius of an image obtained through the fisheye lens; (S200) Estimating a distortion correction parameter from a test image captured by the fisheye lens; (S300) Correcting the distortion using the radius and the distortion correction parameter based on an index considering vertical movement and rotation of a set region of interest