【摘要】 受器件制作工艺限制,难以获取元数超过6000的超长线列探测器,提高图像空间分辨率受到限制。设计一种入端为线阵、出端为面阵的异型结构传像光纤束,利用现有面阵器件接受光纤束输出信息,可以获取超高分辨率图像。光纤的异型结构决定了图像恢复过程十分复杂。本文提出一种双模板极值滤波器算法,针对单根光纤对应多个像素以及光芯和包层传光性能不同的特点,从图像灰度值入手,借助图像腐蚀和重心算法,有效克服光纤断丝引起的盲元,准确定位每根光纤中心位置,找出出端光纤和入端光纤的对应关系,完整恢复入端图像,实现图像的空间变换。更多还原

【Abstract】 Traditional scanning image system can not get high spatial resolution because of limited detective component manufacture technology. It is difficult to acquire the line array whose sensor number is over 6000. Designed a kind of non-conventional fiber bundle whose input is line array while output plane array. Using existing focal plane arrays to receive the signal of the fiber bundle’s output can acquire ultra-high resolution images. However, due to the special structure of the bundles, the image-recovery process became much more complicated. A double-module extremum filter algorithm is proposed. In view of the issue that one fiber covers several pixels and different parts of fiber with different optical-transferring capability, based on grey value of image and with the help of erosion and barycenter algorithm, double-module extremum filter effectively eliminates blind pixels caused by broken fiber, accurately locates the center of every single fiber, finds out the mapping relationship between output and input, and completely recover the input images. The spatial transform is achieved.更多还原