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题目图像融合技术研究学生姓名张昕宇学号1213024058所在学院物理与电信工程学院专业班级通信工程专业1202指导教师陈莉完成地点陕西理工学院2016年6月3日陕西理工学院毕业设计I图像融合技术研究张昕宇（陕西理工学院物理与电信工程学院通信工程专业1202班，陕西汉中723003）指导教师：陈莉【摘要】对多元图像信息进行的一系列提取和合成，统称为图像融合。通过对多元图像信息的提取与合成，从而获得对同一目标的更为准确、更为全面、更为可靠的图像描述。研究者可以得到包含多种情况，不同条件、不同环境、不同模式、不同观察角度下的对同一目标的综合特征描述的图像。图像融合通常可分为像素级融合、特征级融合以及决策级融合三个层次。本文首先介绍了图像融合的概况、国内外研究现状、面临的问题以及本文的主要工作。使用了加权平均法、主成分分析法（PCA）、拉普拉斯金字塔法和小波变换法四种融合方法。并使用matlab对这四种图像融合算法进行了验证。【关键词】图像融合；主成分分析（PCA）；拉普拉斯金字塔；小波变换陕西理工学院毕业设计IIResearchonImageFusionTechnologyZhangXinyu(Grade2012,Class2,MajorofCommunicationEngineering,SchoolofPhysicsandTelecommunicationEngineering,ShaanxiUniversityofTechnology,Hanzhong723003,Shaanxi)Tutor:ChenLi【Abstract】Imagefusionistheextractionandsynthesisofmultipleimageinformationthatcangainamoreaccurate,comprehensive,reliabledescriptionforthesametarget.Researcherscangetcomprehensivedescriptionoftheimageonthesametargetindifferentconditions,differentenvironment,differentmodeanddifferentobservationangles.Imagefusionusuallycanbedividedintopixellevelfusion,featurelevelfusionanddecisionlevelfusion.Atfirst,thispaperintroducesthegeneralsituationofimagefusion,domesticandinternationalresearchstatusandproblems,thenintroducesweightedaveragemethod,principalcomponentanalysis(PCA),LaplassePyramidmethodandwavelettransformmethodthatareusedforimagefusion.Atlast,thefourimagefusionalgorithmsareverifiedinMATLAB.【Keywords】Imagefusion;principlecomponentsanalysis（PCA）;laplacianpyramidmethod;wavelettransform陕西理工学院毕业设计III目录1.绪论....................................................................................................................................................................................11.1图像融合技术及发展历程..............................................................................................................................11.2国内外研究现状................................................................................................................................................21.3本文的主要内容................................................................................................................................................22.图像融合理论...................................................................................................................................................................32.1图像融合的三个层次......................................................................................................................................32.2图像融合规则....................................................................................................................................................52.3图像融合算法....................................................................................................................................................62.4图像融合方法....................................................................................................................................................63.图像融合的常用方法....................................................................................................................................................83.1加权平均法........................................................................................................................................................83.2主成分分析法（PCA法）..............................................................................................................................83.3拉普拉斯金字塔（Pyramid）法.................................................................................................................93.4小波变换法.......................................................................................................................................................104.MATLAB仿真...................................................................................................................................................................144.1加权平均法......................................................................................................................................................144.2主成分分析法（PCA法）.............................................................................................................................164.3拉普拉斯金字塔（Pyramid）法................................................................................................................194.4小波变换法.......................................................................................................................................................204.5图像融合的客观评价参数...........................................................................................................................224.5.1信息熵...................................................................................................................................................224.5.2均方根误差..........................................................................................................................................224.5.3信噪比....................................................................................................................