测绘通报 ›› 2021, Vol. 0 ›› Issue (1): 94-98.doi: 10.13474/j.cnki.11-2246.2021.0017

• 技术交流 • 上一篇    下一篇

结合SIFT特征点和泊松融合的无人机遥感影像拼接技术

周杰1, 解琨1, 付超1, 施昆2   

  1. 1. 江苏省基础地理信息中心, 江苏 南京 210013;
    2. 昆明理工大学国土资源工程学院, 云南 昆明 650093
  • 收稿日期:2020-01-05 修回日期:2020-05-06 发布日期:2021-02-08
  • 作者简介:周杰(1989-),男,硕士,工程师,主要从事摄影测量与遥感的研究。E-mail:zhoujie211@163.com
  • 基金资助:
    国家自然科学基金(41604068)

Technology of UAV remote sensing image mosaic technology combining SIFT features and poisson fusion

ZHOU Jie1, XIE Kun1, FU Chao1, SHI Kun2   

  1. 1. Provincial Geomatics Centre of Jiangsu, Nanjing 210013, China;
    2. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2020-01-05 Revised:2020-05-06 Published:2021-02-08

摘要: 针对无人机遥感影像拼接技术的研究,本文提出了一种结合尺度不变的SIFT特征点和重叠过渡泊松融合的无人机遥感影像无缝拼接方法。该方法首先采用SIFT算法对影像进行特征点提取,根据特征描述符间的欧氏距离对特征点进行粗匹配;然后使用随机采样一致性(RANSAC)算法剔除误匹配点对,为防止计算出的单适应矩阵线性结构不稳定,引入LM算法对单适应矩阵进行优化;最后采用重叠过渡泊松融合算法对影像进行拼接融合,以实现影像的无缝拼接。试验结果表明,该方法在无人机遥感影像拼接方面具有优势,能够获得良好的拼接影像。

关键词: SIFT特征, RANSAC算法, LM算法, 泊松融合, 影像拼接

Abstract: Aiming at the research of UAV remote sensing image mosaic technology, a seamless mosaic method of UAV remote sensing image combining scale-invariant SIFT feature points with overlapping transition Poisson fusion is proposed. The method firstly uses SIFT algorithm to extract the feature points of the image. the feature points are coarsely matched according to the euclidean distance between the feature descriptors. Then the random sampling consistency (RANSAC) algorithm is used to remove the mismatched point pairs. In order to prevent the calculated single adaptive matrix linear structure instability, the LM (Levenbeg-Marquardt) algorithm is introduced to optimize the single adaptive matrix. Finally, the overlapped transition poisson fusion algorithm is used to achieve the seamless mosaic of the image. The experimental results show that this method has advantages in UAV remote sensing image mosaic and can obtain good mosaic image.

Key words: SIFT feature, RANSAC algorithm, LM algorithm, Poisson fusion, image mosaic

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