为了获得尽可能高的空间分辨率的图像, 超分辨率重构技术 (SRR)成为了红外扫描成像的研究热点。本文以红外多线阵错位排列扫描成像系统为研究平台, 通过分析 SRR实现过程及待重构图像获取的方式, 分析了红外多线阵错位排列扫描成像系统中 SRR有效的关键。实验表明: 对于固定错位量的多排传感器扫描成像系统, 影响重构图像质量的主要因素是各通道所获得的待重构图像同位像素灰度不一致引入的噪声。本文提出的基于序列逐像素比较滤波法, 可以大大提高重构图像质量。

Infrared scanning imaging is necessary in remote sensing field. To improve the spatial resolution of infrared scanning image as much as possible, the applying research of Super Resolution Reconstruction (SRR) in infrared scanning imaging systems become the hot research point. Applying infrared scanning imaging system arranges dislocated multi-line array, through the procedure of SRR and the ways of getting the image sequence to be reconstructed, the key of improving the spatial resolution by SRR in the adopted experiment device are analyzed. The experiment shows that, as to the experiment device, the key factor affecting the quality of the reconstructed image is the noise caused by the large difference of the pixel value in the relative location in the image sequence. The comparative filter method based on the pixel of the image sequences can improve the quality of reconstructed image.