[1]李忠新,茅耀斌,王执铨.基于角点匹配的鲁棒图像镶嵌方法[J].南京理工大学学报(自然科学版),2007,(03):359-363.
 LI Zhong-xin,MAO Yao-bin,WANG Zhi-quan.Robust Image Mosaicing by Corner Matching[J].Journal of Nanjing University of Science and Technology,2007,(03):359-363.
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基于角点匹配的鲁棒图像镶嵌方法
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2007年03期
页码:
359-363
栏目:
出版日期:
2007-06-30

文章信息/Info

Title:
Robust Image Mosaicing by Corner Matching
作者:
李忠新1 茅耀斌2 王执铨2
南京理工大学1. 机械工程学院; 2. 自动化学院, 江苏南京210094
Author(s):
LI Zhong-xin1MAO Yao-bin2WANG Zhi-quan2
1.School of Mechanical Engineering;2.School of Automation,NUST,Nanjing 210094,China
关键词:
图像镶嵌 角点检测 角点匹配 随机采样算法
Keywords:
imagemosaic ing corner detection cornermatch ing random sample consesus algorithm
分类号:
TP391.41
摘要:
为了获取场景的宽视场表示,提出了一种鲁棒的图像镶嵌方法。该方法对图像序列中的各个图像进行角点提取,再利用归一化相关方法进行角点的初始匹配。由于初始匹配中包含有大量的出格点,直接采用最小二乘法得不到正确的图像平面间的变换模型参数,为此,采用了鲁棒随机采样算法来估计图像平面间的变换模型参数。该算法能够有效地剔除初始匹配中的出格点,获得精确的匹配点子集。然后利用这些精确匹配的点集来计算变换模型参数,从而实现了图像的正确镶嵌。整个过程无需人工干预,均由计算机自动完成。对真实图像的试验结果表明了该方法的有效性。
Abstract:
A robust imagemosaicingmethod is put forw ard to construct panoram ic image. Themethod uses Harris corner detector to ex tract corner-po ints for each image. A norma lized cross correlat ion method is used to coarselymatch corner-pairs betw een image pairs. Due to the ex istence of the outl-i ers, direct use of least square a lgorithm w ou ld lead to the inaccurate parameter est imation o f the transformationmodel that is required in image reg istration. To so lve the problem, theRandom Sample Consensus ( RANSAC) algorithm is introduced to est imate the transformat ionmodel parameters, wh ich is able to elim inate the outliers and to obta in exact co rner-pa irs. A ccording to the aforement ioned steps, thew ho le process of the imagemosa icing is automatica lly accomplished. Some rea l images are subject to corner detection, reg istration and fina lmosaic ing, wh ich results in an excellent outcome

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备注/Memo

备注/Memo:
作者简介: 李忠新( 1976- ), 男, 陕西丹凤人, 博士, 主要研究方向: 图像处理, E-mail:lzxnj@sohu. com。
更新日期/Last Update: 2007-06-30