内蒙古科技大学本科生毕业设计说明书(毕业论文)题目:图像拼接方法及其应用研究学生姓名:杨洪升学号:1167118201专业:电子信息工程班级:电信二班指导教师:史明泉内蒙古科技大学毕业设计说明书(毕业论文)II图像拼接方法及其应用研究摘要图像拼接技术顾名思义就是将数张有重叠部分的图像拼成一幅大型的无缝高分辨率图像的技术,在遥感技术领域、虚拟现实领域、医学图像处理领域等都有广泛的应用。本文首先分析了目前主流科研图像配准和图像融合的算法,重点研究了SIFT算法和Harris算子,RANSAC算法的图像拼接,并对其中的一些问题做出了改进和个人的分析。在本文中对于图像的隐试信息,采取了多尺度表示的图像方法解决,在对于图像的各种操作时都是考虑这些基本问题,其中尺度不变的特征用来图像匹配和物体的识别,本文中对sift算法在图像拼接中的问题做了详细的概述。基于特征点的图像拼接中,在提取特征点和检测中做了一些详细的研究,在图像的特点上,本文中提出了一种基于Harris算法结合鲁棒性较高RANSAC算法提纯匹配点,其主要的思想在于去除经典Harris算法中出现的特征点聚集,这样大大减少了RANSAC算法进行图像配准的运算时间。关键词:图像拼接;图像配准;特征提取;图像融合内蒙古科技大学毕业设计说明书(毕业论文)IIResearchontheapplicationofimagemosaicmethodAbstractImagestitchingtechnologyisasthenamesuggeststhenumberofimagesintooverlappingpartofalargeseamlesshighresolutionimagetechnology,Inthefieldofremotesensingtechnology,thefieldofvirtualreality,thefieldofmedicalimageprocessingandiswidelyusedin.Thispaperanalysisofthecurrentmainstreamalgorithmsandimagefusion,focusesontheSIFTalgorithmandHarrisalgorithm,RANSACalgorithmforimagestitching.Inthispaperfortheimageofimplicitinformation,solvetheimagemethodadoptedamultiplesolutionsrepresentationforvariousoperations,intheimageareconsideredthesebasicquestions,includingthescaleinvariantfeaturesforimagematchingandobjectrecognition,inthispaper,theimagematchingproblemofSIFTalgorithmtodoadetailedoverview.Basedonthefeaturepointsoftheimagestitching.Thistodosomedetailedresearchonthefeatureextractionanddetection,imagefeatures,thispaperproposesaHarrisalgorithmbasedonRANSACalgorithmwithhighrobustness,whichgreatlyreducedtheRANSACalgorithmforimageregistrationcomputingtime.Keywords:imagemosaic,imageregistration,featureextraction,imagefusion.内蒙古科技大学毕业设计说明书(毕业论文)III目录摘要……...……………………………………………………………………………………...IABSTRACT……………………………………………………………………………………II第一章绪论............................................................................................................................11.1图像拼接的研究背景..................................................................................................11.2图像拼接的研究意义..................................................................................................21.3图像拼接应用领域和研究现状...................................................................................21.3.1应用领域...........................................................................................................31.3.2研究现状..........................................................................................................41.4图像拼接的特点..........................................................................................................61.5本文章节的安排.........................................................................................................6第二章图像拼接关键技术的研究介绍...................................................................................82.1图橡拼接技术的基本流程介绍..................................................................................82.2图像拼接的信息采集和处理.....................................................................................92.3图像拼接的配准.......................................................................................................102.3.1图像配准的原理............................................................................................102.3.2图像配准的方法.............................................................................................112.4图像的融合与合成...................................................................................................15第三章基于SIFT图像拼接算法..........................................................................................183.1SIFT算法的基本原理..............................................................................................183.1.1多尺度空间理论............................................................................................183.1.2检测极值点....................................................................................................193.1.3稳定关键点....................................................................................................213.1.4局部特性描述.................................................................................................223.1.5拼接融合........................................................................................................223.2改进算法分析实例...................................................................................................23第四章基于Harris算法的图像拼接研究...........................................................................264.1角点提取算子...........................................................................................................264.2Harris角点检测原理..............................................................................................264.2.1柱面投影生成................................................................................................27内蒙古科技大学毕业设计说明书(毕业论文)IV4.2.2Harris角点提取.........................................................................................274.3RANSAC算法的原理..................................................................................................294.4拼接算法的实例分析...............................