中文摘要：

由于缺乏统一的理论体系指导，目前遥感影像融合研究相对比较混乱。针对像素级融合统一理论框架的思想，指出了遥感影像融合研究的方向和思路，将像素级融合统一理论框架逐步向特征级和决策级推广，着重发展了一套遥感影像融合统一理论体系。在统一体系下，面向灾害监测应用，按照理论研究、方法研究和应用研究的3个层次进行该理论体系的设计。

英文摘要：

As the absence of the guidance of universal theoretical system, the remote sensing data fusion study is comparatively confused. This paper figured the ideas and core contents of remote sensing data fusion based on the universal theoretical framework for pixel-level remotely sensed data fusion, which would extend the pixel-level framework to feature-level and then decision-level step by step, focusing on the development of a new Universal theoretical system for remotely sensed data fusion. The theoretical system would be designed by theory study, method study and application study hierarchies based on the natural disaster monitoring application.