어안렌즈왜곡 및 원근왜곡의 보정

Correction of Fisheye Distortion and Perspective Distortion

  • 송광열 (전남대학교 산업공학과 지능정보시스템 연구실) ;
  • 윤팔주 (만도(주) 중앙연구센터) ;
  • 이준웅 (전남대학교 산업공학과, 자동차연구소)
  • 발행 : 2006.10.01

초록

This paper considers the lens distortions such as a fisheye distortion and a perspective distortion. While a fisheye lens has a wide field-of-view, it causes a large distortion to the images. Regardless of a fisheye lens or a rectilinear lens, a lens generates perspective distortion in a vertical direction when the lens views in an upward direction or downward direction. These distortions deform images differently from human visual functions. Therefore, this paper presents a method to correct the distortions, and whereby, the research in this paper enlarges choices of images to image processing algorithm that may select the distorted images and the corrected images depending on applications. An infinite polynomial model is employed in the fisheye radial distortion correction, and the vertical perspective distortion correction is done by using a vanishing point. The methods introduced in this paper are implemented on the images captured by a rear-view camera installed on a vehicle and showed their robustness of the correction.

키워드

참고문헌

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