Trimmed strategy for affine registration of point sets
Trimmed strategy for affine registration of point sets
复制标题
点集仿射配准的修剪策略
DOI:
10.1117/1.jrs.7.073468
复制
发表时间:
2013-01
影响因子:
1.7
通讯作者:
T.Zeng
中科院分区:
文献类型:
--
作者:
Y. Peng;S. Ying;J. Qin;T.Zeng
Abstract We propose a trimmed strategy for affine registration of point sets using the Lie group parameterization. All affine transformations form an affine Lie group, thus finding an optimal transformation in registration is reduced to finding an optimal element in the affine group. Given two point sets (with outliers) and an initial element in the transformation group, we seek the optimal group element iteratively by minimizing an energy functional. This is conducted by sequentially finding the closest correspondence of two point sets, estimating the overlap rate of two sets, and finding the optimal affine transformation via the exponential map of the affine group. This method improves the trimmed iterative closest point algorithm (TrICP) in two aspects: (1) We use the Lie group parameterization to implement TrICP. (2) We also extend TrICP to the case of affine transformations. The performance of the proposed algorithm is demonstrated by using the LiDAR data acquired in the Mount St. Helens area. Both visual inspections and evaluation index (root mean trimmed squared distance) indicate that our algorithm performs consistently better than TrICP and other related algorithms, especially in the presence of outliers and missing points.
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DOI:
10.5244/c.15.43
发表时间:
2003-12
期刊:
Image Vis. Comput.
影响因子:
--
作者:
A. Fitzgibbon
通讯作者:
A. Fitzgibbon
影响因子:
4.8
作者:
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DOI:
10.1109/34.121791
发表时间:
1992-02-01
影响因子:
23.6
作者:
BESL, PJ;MCKAY, ND
通讯作者:
MCKAY, ND
影响因子:
1.1
作者:
Lifen Ding;Yaxin Peng;Chaomin Shen;Zhiyu Hu
通讯作者:
Zhiyu Hu
影响因子:
1.1
作者:
S. Du;Jihua Zhu;Nanning Zheng;Jihong Zhao;Ce Li
通讯作者:
S. Du;Jihua Zhu;Nanning Zheng;Jihong Zhao;Ce Li