自动化学报Issue(2)：353-361,9.DOI:10.16383/j.aas.2015.c140287
航空交错TDI红外影像复原
Restoration of Infrared Images Captured by Aerial Staggered TDI Cameras
摘要
Abstract
The infrared images captured by aerial staggered time delay and integration (TDI) cameras suffer from gray difference and stagger displacement between the odd field and even field, as well as blur owing to the long integrated exposure time. In order to restore the images, a POC (Phase-only correlation)-based motion estimation method is employed to estimate the motion field between the odd and even fields, because the POC is independent of gray differences between image pairs and can achieve sub-pixel accuracy. The motion field is then used for pixel-to-pixel gray correction of the even field with the odd field as the reference, and the odd field and the corrected even field are aligned. Finally, a BTV-based super-resolution algorithm is used for debluring. Experimental results show that the displacement is effectively compensated, texture and edges are sharper and clearer, and the quality of the restored image is improved obviously.关键词
交错延时积分/相位相关/位移估计/影像复原Key words
Staggered TDI/phase-only correlation (POC)/motion estimation/image restoration引用本文复制引用
陈王丽,孙涛,秦前清,石强,马国锐..航空交错TDI红外影像复原[J].自动化学报,2015,(2):353-361,9.基金项目
国家自然科学基金(41171450,61001187),中国航天科技集团公司卫星应用研究院创新基金(2014 CXJJ-YG 03)@@@@Supported by National Natural Science Foundation of China (41171450,61001187), and Open Research Fund of the Academy of Satellite Application (2014 CXJJ-YG 03) （41171450,61001187）
