FF-PNet: A Pyramid Network Based on Feature and Field for Brain Image Registration

• URL: http://arxiv.org/abs/2505.04938v2
• Date: Fri, 09 May 2025 11:41:16 GMT
• Title: FF-PNet: A Pyramid Network Based on Feature and Field for Brain Image Registration
• Authors: Ying Zhang, Shuai Guo, Chenxi Sun, Yuchen Zhu, Jinhai Xiang,
• Abstract summary: We construct a new pyramid registration network based on feature and deformation field (FF-PNet)<n>For coarse-grained feature extraction, we design a Residual Feature Fusion Module (RFFM), for fine-grained image deformation, we propose a Residual Deformation Field Fusion Module (RDFFM)<n>Through the parallel operation of these two modules, the model can effectively handle complex image deformations.
• Score: 9.405928062479017
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In recent years, deformable medical image registration techniques have made significant progress. However, existing models still lack efficiency in parallel extraction of coarse and fine-grained features. To address this, we construct a new pyramid registration network based on feature and deformation field (FF-PNet). For coarse-grained feature extraction, we design a Residual Feature Fusion Module (RFFM), for fine-grained image deformation, we propose a Residual Deformation Field Fusion Module (RDFFM). Through the parallel operation of these two modules, the model can effectively handle complex image deformations. It is worth emphasizing that the encoding stage of FF-PNet only employs traditional convolutional neural networks without any attention mechanisms or multilayer perceptrons, yet it still achieves remarkable improvements in registration accuracy, fully demonstrating the superior feature decoding capabilities of RFFM and RDFFM. We conducted extensive experiments on the LPBA and OASIS datasets. The results show our network consistently outperforms popular methods in metrics like the Dice Similarity Coefficient.

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