公开(公告)号：US5870135A

公开(公告)日：1999-02-09

申请号：US893930

申请日：1997-07-15

申请人： Terry Laurence Glatt ,  Steven W. Schieltz ,  Carl Kupersmit

发明人： Terry Laurence Glatt ,  Steven W. Schieltz ,  Carl Kupersmit

IPC分类号： H04N5/225 ,  H04N5/262 ,  H04N7/18

CPC分类号： H04N3/1593 ,  H04N5/2254 ,  H04N5/2628 ,  H04N7/183

摘要： A video surveillance system has a camera equipped with a fisheye lens having a substantially hemispheric field of view. The system implements operations equivalent to the panning, tilting and zooming of a conventional camera without the use of moving parts. The lens is mounted vertically above a plane under surveillance. The camera produces a fisheye image made up of a plurality of pixels. The fisheye image is distorted due to the properties of the fisheye lens. The system corrects the distortion by mapping the pixels of the fisheye image to coordinates produced by selecting a particular part of the fisheye image to be viewed. This allows an operator to select parts of the field of view of the fisheye lens and view them as if they had been produced by a camera having a conventional lens being panned tilted or zoomed. The fisheye image formed by the camera is split into four separate image components carried by four bundles of optical fibers. Each bundle has a CCD and associated image processing circuitry which forms an electronic representation of the image component carried by that bundle.

摘要翻译： 视频监控系统具有配备有具有大致半球视场的鱼眼镜头的相机。 该系统在不使用移动部件的情况下实现与常规相机的平移，倾斜和变焦相当的操作。 镜头垂直安装在监视的飞机上方。 相机产生由多个像素构成的鱼眼图像。 由于鱼眼镜头的特性，鱼眼图像变形。 该系统通过将鱼眼图像的像素映射到通过选择要观看的鱼眼图像的特定部分而产生的坐标来校正失真。 这允许操作者选择鱼眼镜头的视场的部分并且将它们看起来就好像它们是由具有倾斜或缩放的常规镜头的照相机产生的。 由相机形成的鱼眼图像被分成由四束光纤携带的四个独立的图像分量。 每个束具有CCD和相关联的图像处理电路，其形成由该束携带的图像分量的电子表示。