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arXiv · 2111.14831

Multi-domain Integrative Swin Transformer network for Sparse-View Tomographic Reconstruction

Jiayi Pan·Heye Zhang·Weifei Wu·Zhifan Gao·Weiwen Wu
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Abstract

Decreasing projection views to lower X-ray radiation dose usually leads to severe streak artifacts. To improve image quality from sparse-view data, a Multi-domain Integrative Swin Transformer network (MIST-net) was developed in this article. First, MIST-net incorporated lavish domain features from data, residual-data, image, and residual-image using flexible network architectures, where residual-data and residual-image sub-network was considered as data consistency module to eliminate interpolation and reconstruction errors. Second, a trainable edge enhancement filter was incorporated to detect and protect image edges. Third, a high-quality reconstruction Swin transformer (i.e., Recformer) was designed to capture image global features. The experiment results on numerical and real cardiac clinical datasets with 48-views demonstrated that our proposed MIST-net provided better image quality with more small features and sharp edges than other competitors.

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Jiayi Pan, Heye Zhang, Weifei Wu, Zhifan Gao, Weiwen Wu. 2021-11-28. Multi-domain Integrative Swin Transformer network for Sparse-View Tomographic Reconstruction. https://arxiv.org/abs/2111.14831

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