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应用经纬映射的鱼眼图像校正设计方法

  

  • 出版日期:2010-12-31 发布日期:2015-08-12

The Designing Methods of Fish-eye Distortion Correction Using Latitude-longitude Projection

  • Online:2010-12-31 Published:2015-08-12

摘要: :为了消除鱼眼镜头带来的形变,该文提出了一种应用经纬映射的鱼眼图像校正设计方法,推导了消除变形的数学依据,总结出一种不需要任何标定数据,快速的纠正等角鱼眼变形的算法。使用经纬映射图像的校正方法,可以把扭曲的半球鱼眼图像投射为普通照片的四方形状,也即通过投射降低图像的扭曲程度,在视觉上基本达到实用要求。

关键词: 计算机图形学, 经纬映射图, 鱼眼图像, 鱼眼图像校正

Abstract: For correcting the distortion caused by fish-eye lens, this paper proposes fish-eye distortion correction methods using Latitude-longitude projection image. The paper deduces the mathematic basis of eliminating distortion, summarizes and proposes a efficient fish-eye image distortion correction algorithm without any marking data. The use of Latitude-longitude image correction method can reduce the distortion of image in the way of projecting the distorted hemispheric fish-eye images into square shape as general photos, which greatly satisfies the practical requests.

Key words: computer graphics, latitude-longitude projection image, fish-eye image, fish-eye distortion correction