基于 SURF 与 BRISK 的遥感图像配准
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(中国人民解放军空军航空大学航空航天情报系,长春 130022)

作者简介:

仇荣超(1990—),男,江苏人,硕士,从事图像配准研究。

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中图分类号:

TP75

基金项目:

全军军事类研究生资助课题(2013JY514)


Remote Sensing Image Registration Based on SURF and BRISK
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(Department of Aviation & Spaceflight Intelligence, Aviation University of Air Force, Changchun 130022, China)

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    摘要:

    针对 SURF 算法在构建局部特征描述符阶段耗时过长的问题,提出一种基于 BRISK 二进制特征描述符的 改进 SURF 算法。应用 SURF 算法中快速 DoH(determinant of hessian)算子检测特征点并确定主方向,采用 BRISK 描述符进行特征描述,通过匹配阶段采用汉明距离双向匹配和 RANSAC 算法剔除误匹配,并利用最小二乘法获取精 确配准模型完成图像的配准。对比实验结果表明:该算法大幅提高了匹配速度,其匹配性能也超越了原 SURF 算法, 能够较好地完成遥感图像配准。

    Abstract:

    To solve the problem that constructing local feature descriptors of SURF takes too much time, this paper proposed a novel method based on binary BRISK feature descriptor to improve remote sensing image matching speed. Firstly fast DoH (Determinant of Hessian) operator was applied to detect the feature points and determine the main direction. Then we used BRISK descriptor to describe the feature points, at the matching stage, we used two direction matching by Hamming distance and RANSAC algorithm to match again. Finally, the least square algorithm was applied to obtain accurate registration and complete image registration. Experimental results show that the algorithm can not only improve the matching speed significantly, but also the matching performance is beyond the original SURF algorithm, which can be used to complete the remote sensing image registration.

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仇荣超.基于 SURF 与 BRISK 的遥感图像配准[J].,2016,35(02):35-40.

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  • 在线发布日期: 2018-12-05
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