文章基本信息

标题：Study on Chromatic Aberrations of Two Fisheye Lenses
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作者：Petteri Pöntinen
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B3a
页码：27-32
出版社：Copernicus Publications
摘要：Chromatic aberration is observable especially with wide angle lenses. This paper presents a study on chromatic aberration of two fisheye lenses. Both tested lenses produce images with obvious colour aberration. Four different mathematical models were tested to compensate the aberration of distinct colour channels; shift and scale, affine, projective and polynomial. The model parameters were obtained by registering the red and blue channels to the green one. The performed experiments revealed that shifting and scaling of the colour channels is adequate to compensate most of the chromatic aberration of tested fisheye lenses. It also turned out that same corrections can not be applied to different aperture and focus settings. Registering of the colour channels improved the image quality notably
关键词：Registering; Colour; Image; Parameters; Geometric