摘要
鱼眼镜头在实际生活中有广泛的用途,在使用时鱼眼图像往往需要变换为惯用的透视投影图像。证明了大视角透视投影图像会产生严重的畸变,为此需要把鱼眼图像变换为多幅具有各自光学中心的小幅透视投影图像。给出了把鱼眼图像变换成透视投影图像时光学中心转移的算法,从而实现了用小视角的透视投影图像在大视角的鱼眼图像中的漫游。
Fisheye lenses are widely used in real life, but while being used, fisheye images usually have to be transformed into perspective projection images. It is proved that a perspective projection image with large angle of view would produce a severe distortion, so a fisheye image has to be transformed into some small perspective projection images with each optic centers. An algorithm is presented for transferring the optic center when a fisheye image is transformed into perspective projection images, consequently a navigation of a perspective projection image with small angle of view can be realized within a fisheye image with large angle of view.
出处
《工程图学学报》
CSCD
北大核心
2006年第5期44-49,共6页
Journal of Engineering Graphics
基金
安徽省教育厅重点科研计划资助项目(2001kj190zd)
