红外与毫米波学报, 2015, 34(6): 0757, 网络出版: 2015-06-01

基于实时视轴跟踪的像移补偿技术研究

Investigation of image motion compensation technique based on real-time LOS tracking
作者单位

1中国科学院上海技术物理研究所 空间主动光电技术重点实验室,上海 200083

2西北大学,陕西 西安 710000

摘要
为解决画幅式扫描红外成像技术中翼展摆扫引起的严重像移问题,提出了一种基于实时视轴跟踪的像移补偿技术,对于瞬时视场为100 μrad的成像系统,像移补偿精度可达±0.005°(±87.3 μrad),补偿效果优于1个像元。该技术能够实现翼展摆扫像移的高频补偿,研究成果对推动机载红外成像技术向宽视场、高空间分辨率方向进一步发展具有重要意义。
Abstract
An image motion compensation technique based on real-time Line of Sight (LOS) tracking was proposed to solve the serious problem of image motion in the process of frame scanning infrared imaging originating from wingspan pendulum sweep. The compensation accuracy is up to ±0.005° and the compensation effect is no more than 1 pixel for the imaging system with an instantaneous Field of View of 100 μrad. This method enables high-frequency compensation of image motion derived from wingspan pendulum sweep, promoting the development of airborne infrared imaging technology with WFOV and high spatial resolution.
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