地埋成像系统拍摄的图像由于极易受到车速和环境的影响,使成像系统拍摄的图片和真实图存在一定的差异,关于地埋成像系统拍摄图像的真实性和准确性的问题,长期受到重视并且亟待解决。为了提高地埋成像系统拍摄图像的清晰度和精准度,需要对采集的图像数据进行冗余去除。在分析现有的常用图像匹配技术之后,并从实际应用的角度出发,文中提出了一种去除线阵式相机行扫描带来的冗余行的相关策略和算法。在该算法的基础上,结合线阵式相机的特性以及拍摄图像的要求,提高了判断相邻行相似度的算法的精准性,实现了对原始图像的准确还原。通过实验,系统地分析了算法的适应性,实验结果验证了所提算法的有效性。
Because of the influence of vehicle speed and environment,the pictures shot by the ground imaging system have a certain gap with the real map. The problem about the authenticity and accuracy of image shot by the ground imaging system have caused people's attention in the long term,and it is urgent to be solved. In order to improve the clarity and precision of the photo shot by ground imaging system,the redundant of the shot photo should be deleted. From a practical point of view,after analyzing the existing frequently-used image matching technique,the related strategy and algorithm of deleting redundant caused by CCD camera in the process of line scanning has being put forward in this paper. At the same time,on the base of algorithm,combined with the characteristics of CCD camera and the requirements of photographed images,the precision of the algorithm used to adjacent the similarity of row s has been improved,and the accuracy requirement of reducing the original image has been realized. Through experiment,analyze the adaptability of the algorithm systematically,and the simulation results have show ed the feasibility of the algorithm.