SegFormer3D: an Efficient Transformer for 3D Medical Image Segmentation

• URL: http://arxiv.org/abs/2404.10156v2
• Date: Tue, 23 Apr 2024 21:00:39 GMT
• Title: SegFormer3D: an Efficient Transformer for 3D Medical Image Segmentation
• Authors: Shehan Perera, Pouyan Navard, Alper Yilmaz,
• Abstract summary: We present SegFormer3D, a hierarchical Transformer that calculates attention across multiscale volumetric features. SegFormer3D avoids complex decoders and uses an all-MLP decoder to aggregate local and global attention features. We benchmark SegFormer3D against the current SOTA models on three widely used datasets.
• Score: 0.13654846342364302
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The adoption of Vision Transformers (ViTs) based architectures represents a significant advancement in 3D Medical Image (MI) segmentation, surpassing traditional Convolutional Neural Network (CNN) models by enhancing global contextual understanding. While this paradigm shift has significantly enhanced 3D segmentation performance, state-of-the-art architectures require extremely large and complex architectures with large scale computing resources for training and deployment. Furthermore, in the context of limited datasets, often encountered in medical imaging, larger models can present hurdles in both model generalization and convergence. In response to these challenges and to demonstrate that lightweight models are a valuable area of research in 3D medical imaging, we present SegFormer3D, a hierarchical Transformer that calculates attention across multiscale volumetric features. Additionally, SegFormer3D avoids complex decoders and uses an all-MLP decoder to aggregate local and global attention features to produce highly accurate segmentation masks. The proposed memory efficient Transformer preserves the performance characteristics of a significantly larger model in a compact design. SegFormer3D democratizes deep learning for 3D medical image segmentation by offering a model with 33x less parameters and a 13x reduction in GFLOPS compared to the current state-of-the-art (SOTA). We benchmark SegFormer3D against the current SOTA models on three widely used datasets Synapse, BRaTs, and ACDC, achieving competitive results. Code: https://github.com/OSUPCVLab/SegFormer3D.git

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