该文首先从短焦距镜头和给定cCD成像阵列的成像特性出发，分析了实现亚像元成像与定位的必要性。
Based on the characteristics of short focus lens and CCD array, the necessity of sub-pixel imaging and location is analyzed.
从光学测量角度出发，结合计算机视觉中的摄像机标定方法，解决了大视场短焦距镜头CCD摄像系统的畸变校正问题。
According to the principle of optical measurement, a simple and effective method to measure the distortion of CCD camera with a largefield, short focal length lens is presented.
广角镜头：覆盖范围广阔的镜头。它的焦距长度短于所用菲林格式的对角线长度。
Wide-Angle lens: lens with wide covering power. It has a focal length which is less than the diagonal of the film format with which it is being used.
短焦距摄像机镜头一般都存在比较严重的光学畸变，使成像质量下降。
This method is good for the camera lens of short focus, it can correct the aberration caused by radial distortion perfectly.
短焦距摄像机镜头一般都存在比较严重的光学畸变，使成像质量下降。
This method is good for the camera lens of short focus, it can correct the aberration caused by radial distortion perfectly.
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