Journal of System Simulation ›› 2022, Vol. 34 ›› Issue (7): 1482-1489.doi: 10.16182/j.issn1004731x.joss.21-0073

• Modeling Theory and Methodology • Previous Articles     Next Articles

A Modified Point Matching Method for Non-Rigid Image Registration

Jintai Shangguan1(), Yawen Dang2, Wei Lian1   

  1. 1.Dept. of Computer Science and Technology, Changzhi College, Changzhi 046011, China
    2.Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2021-01-25 Revised:2021-04-20 Online:2022-07-30 Published:2022-07-20

Abstract:

Aiming at the problem that the registration results tend to converge to local minima due to the complexity of the relative position changes between two point sets in the non-rigid body point matching process, a joint estimation method for non-rigid body point matching based on precenter alignment is proposed, a modified matching method for non-rigid image registration based on centre preregistration is proposed. To better achieve the point matching accuracy between two point sets, a centre preregistration step is applied before the iterative closest point matching algorithm, which converges to a solution more close to a global optimum and thus better matching results. The simulation results show that the proposed method achieves better matching accuracy than the traditional algorithm without significantly increased computation.

Key words: non-rigid point matching, correspondence relationship, joint estimation, centre preregistration, iterative closest point

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