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Technology of Graphic & Image
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1556-1563

Combining filtering and projection angle feature interaction for sparse view cone-beam CT reconstruction

He Xi
Zhang Hongying
School of Information & Control Engineering, Southwest University of Science & Technology, Mianyang Sichuan 621010, China

Abstract

The existing sparse projection view-based cone-beam computed tomography(CBCT) reconstruction methods suffer from low image quality, prolonged reconstruction times, and an inability to perform end-to-end reconstruction. To address these issues, this paper proposed a deep filtering multi-projection angle feature extraction network(FMA-Net). Initially, it processed projection data in the frequency domain to effectively suppress noise and artifacts. Subsequently, it introduced a multi-projection attention module and a visual state space module to enhance the networks capability to extract features from projection data, and improving the utilization rate of projection feature information. Finally, it employed a multi-projection angle feature interaction module to obtain similar information from the same projection point at different projection angles, thus enhancing the quality of reconstructed data points in CBCT. Comparative experiments were conducted on 21 real walnut datasets and 1 018 pulmonary CT projection datasets with FMA-Net and six conventional methods, such as FDK, SART, SART_TV, CGLS, CNCL and DIF-Net. The results show that FMA-Net outperforms these methods under four different projection image quantity conditions of 18, 21, 24 and 27. Specifically, on the walnut dataset, FMA-Net achieves an average RMSE reduction of 14.6%, an average PSNR increase of 4.3%, and an average SSIM increase of 1.75%. On the LIDC-IDRI pulmonary dataset, it shows an average RMSE reduction of 16.3%, an average PSNR increase of 5.4%, and an average SSIM increase of 5.5%, while also leading in reconstruction speed. All results indicate that FMA-Net can rapidly reconstruct high-quality cone-beam CT images from sparse projection views.

Publish Information

DOI: 10.19734/j.issn.1001-3695.2024.07.0273
Publish at: Application Research of Computers Printed Article, Vol. 42, 2025 No. 5
Section: Technology of Graphic & Image
Pages: 1556-1563
Serial Number: 1001-3695(2025)05-036-1556-08

Publish History

[2025-05-05] Printed Article

Cite This Article

何希, 张红英. 结合滤波和投影角特征交互的稀疏视图锥束CT重建 [J]. 计算机应用研究, 2025, 42 (5): 1556-1563. (He Xi, Zhang Hongying. Combining filtering and projection angle feature interaction for sparse view cone-beam CT reconstruction [J]. Application Research of Computers, 2025, 42 (5): 1556-1563. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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