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1. 厦门大学 信息科学与技术学院,福建 厦门 361005
2. 福建省仿脑智能系统重点实验室,福建 厦门 361005
[ "耿利川(1982-),男,河北元氏人,厦门大学博士生,主要研究方向为遥感图像处理、计算机视觉。" ]
[ "苏松志(1982-),男,福建安溪人,厦门大学副教授,主要研究方向为计算机视觉、模式识别。" ]
[ "李绍滋[通信作者](1963-),男,湖南常德人,厦门大学教授、博士生导师,主要研究方向为计算机视觉、图像处理、计算智能。E-mail:szlig@xmu.edu.cn。" ]
网络出版日期:2015-04,
纸质出版日期:2015-04-25
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耿利川, 苏松志, 李绍滋. 基于透视不变二值特征描述子的图像匹配算法[J]. 通信学报, 2015,36(4):105-114.
耿利川, 苏松志, 李绍滋. 基于透视不变二值特征描述子的图像匹配算法[J]. 通信学报, 2015,36(4):105-114. DOI: 10.11959/j.issn.1000-436x.2015086.
针对基于局部特征的图像匹配算法普遍存在对透视变换顽健性差的缺点,提出了一种新的二值特征描述子PIBC(perspective invariant binary code),提高了图像匹配算法的透视变换顽健性。首先,在提取金字塔图像FAST特征点的基础上,利用Harris角点响应值去除非极大值点和边缘响应点;其次,通过模拟相机不同视角成像之间的透视变换,对单个FAST特征点生成不同视角变换下图像的二值描述子,使描述子具备描述不同视角图像中同一特征点的能力。实验结果表明,算法在提高描述子透视不变性的同时时间复杂度与SURF算法近似。
Current local feature based image matching algorithms are usually less robust to image perspective transformation.Aiming to solve this problem,a new perspective invariant binary code (PIBC) based image matching algorithm is proposed.Firstly,FAST corners are detected on the pyramid images,those corners with non-maximum Harris corner response value and the edge points are further eliminated.And then,by simulating the perspective transformations of images taken from different viewpoints,a single FAST corner is described with binary descriptors under different viewpoint transformations,which makes the descriptor could describe the identical feature point on different perspective transform images.Experimental results show its robustness to image perspective transformation,while its complexity is similar with SURF.
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