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论文类型：期刊论文

发表时间：2016-12-01

发表刊物：COMPUTERS & MATHEMATICS WITH APPLICATIONS

收录刊物：SCIE、EI、Scopus

卷号：72

期号：12

页面范围：2887-2899

ISSN号：0898-1221

关键字：Image registration; Regularization; Multilevel; Second-order functional

摘要：In this paper, a novel variational image registration model using a second-order functional as regularizer is presented. The main motivation for the new model stems from the LLT model (see Lysaker, 2003). In order to avoid mesh folding, inequality constraint on the determinant of the Jacobian matrix) of the transformation is also proposed. Furthermore, a fast solver is provided for numerical implementation of registration model with inequality constraints. Numerical experiments are illustrated to show the good performance of our new model according to the registration quality. (C) 2016 Elsevier Ltd. All rights reserved.