【作者】 张雷；

【导师】 杨风暴；

【作者基本信息】 中北大学 ， 信号与信息处理， 2007， 硕士

【摘要】 图像融合技术弥补了单一传感器的不足,具有大幅提高系统的探测性能、提高系统的自动化程度、降低系统的整体成本、提高探测识别的客观性和正确性等优点,因此图像融合成为现在一个研究的热点,对于双波段图像融合来讲为了达到比较好的融合效果,首先是要分析目标辐射特性、辐射传输特性、成像特性和图像特征等在不同波段的异同,在此基础上研究图像融合算法,利用互补信息和冗余信息来增强图像融合效果,才能取得好的融合效果,使融合具有针对性。本文首先主要研究了目标特性分析中所需要的红外辐射基本理论,在红外辐射理论研究的基础上,研究了目标背景辐射传输特性,对目标背景辐射对比度进行了计算,分析了不同波段目标背景辐射对比度的特点以及由此所形成的图像特征,并结合具体的红外图像采用直方图、均值、标准偏差、局部熵、调和熵、多向粗糙度等对不同波段的图像细节信息进行了具体阐述,最后结合目标背景辐射传输特性,提出了基于普朗克定律的双波段红外图像融合算法,结合不同波段的图像特征,提出了基于目标特征的双波段红外图像融合算法。通过编程实现,取得了比较好的融合结果,图像具有比较丰富的细节信息,目标清晰,能够比较全面的反映出了目标的整体特征,使目标更容易被识别和探测,也使融合具有了针对性。更多还原

【Abstract】 The technique of image fusion makes up the lack of single sensor, it has the virtue of improving performance of systemic detection、improving roboticized degree、reducing the systemic cost、improving objectivity and validity of detection identifying ,so image fusion is the hotspot of research now. If the people want to achieve the aim of the better effect of fusion, first, they must analyze the difference of feature of radiation of target、the difference of feature of transmission of radiation、the difference of feature of imaging and the difference of character of image in the different bands , on base of the analysis the fusion arithmetic is researched, the effect of image fusion is toned by using the commutative information and the redundancy information, the people can achieve the good effect of fusion and the fusion has the pertinence on base of target feature and research of fusion arithmetic are linked.The paper researches the theory that the analyzing of feature of target need of infrared radiation, then the paper researches the feature of radiation transmission and compute the radiation contrast of target and background, at the same time the paper analyzes the feature of the radiation contrast of target and background and the image feature that the radiation contrast of target and background arose, then the paper expounds the image feature using he bar chart、mean、standard deviation、local entropy、congruity of entropy、roughness concentration of multi direction, at last the paper bring forward the fusion arithmetic of double bands infrared on base of fundamentals of Plank and bring forward the fusion arithmetic double bands infrared on base of feature of target. the paper realizes the fusion arithmetic using MATLAB, the effect is better, the fusion image has the abundant detail information , the target is clarity, the feature of target is generally reflected, the target is identified and detected in easy. Besides the fusion arithmetic has the pertinence.更多还原