【摘要】 鱼眼镜头具有视角大(180°～270°)、视野广、短焦距等特点,所拍摄的图像在视频监控、全景图像拼接等领域有广泛的应用.由于鱼眼图像存在较大畸变,不符合人眼视觉的观察习惯,所以对鱼眼图像进行校正有重要的研究意义.本文主要介绍了鱼眼图像的预处理、有效区域提取以及2D几何校正方法.最后对各种类型的畸变图像进行校正实验,结果进一步说明了几何校正方法在图像畸变校正方面的优势.更多还原

【Abstract】 Fisheye lens has the big view angle with the wide perspective(180 ° ～ 270 °) and the short focal length.Images captured by fisheye lens have been applied in many aspects,such as video monitoring,panoramic image stitching,etc.Due to the large distortion of captured images which is not consistent with the habit of human eye observation,the correction of fish-eye image will make a significant sense.This paper mainly introduces how to preprocess the input fish-eye image and extract the effective region,and then use the 2 D geometric correction method.Finally,the correction results in various types of distorted images show the advantages of the geometric correction method.更多还原