一种传像光纤束起点位置搜索的方法

摘要

提出一种基于逐行扫描算法改进的光纤束起点位置搜索方法。在图像采集阶段，由于手动放置CCD很难与光纤束出端完全平行，导致采集到的光纤束图像出现倾角，利用最小二乘法和双线性差值方法校正图像。在光纤束起点位置获取阶段，针对传统’Z’字型搜索算法存在的问题，采取每行只搜索横坐标小于一行像素数1/3的方法。实验结果表明该法避免了搜索错误，同时保证了搜索高效率。%In this paper we propose a search method for starting position of fibre bundles improved on the basis of progressive scan algorithm.In image acquisition phase,since the manually placed CCD is hardly to be in parallel with the exit side of fibre bundles,which leads to the inclination occurred in collected fibre bundles image,and this shall be corrected by the least square method and bilinear interpolation.In the phase of starting position of image-carrying fibre bundles acquisition,a method is used to solve the problems existing in traditional Z-shaped search algorithm,that is to only search those abscissas which values are less than one-third of the line pixels in each line.Experimental results indicate that this method avoids the search errors while guarantees the high-efficiency in searching.