[1] Aufderheide III M B, Martz H E Jr, Slone D M, et al. Concluding rept: quantitative tomography simulations reconstruction algithms[R]. UCRLID146938, 2002: 119.

[2] Clark D A, Espinoza C J. Proton radiography[R]. Physics Division Progress Rept, 19992000: 156168.

[3] Wei Caihua, Jing Yuefeng, Zhang Xiaolin. Image reconstruction algorithm based on maximum likelihood-expectation maximum for radiography[J]. High Power Laser and Particle Beams, 28, 054003(2016).

[4] Jing Yuefeng, Guan Yonghong, Liu Jun. Removal of impulse noise of anti-scatter grided images with modified switching median filters[J]. High Power Laser and Particle Beams, 27, 084006(2015).

[5] Meng Yizhen, Zhang Jun. A novel gray image denoising method using convolutional neural network[J]. IEEE Access, 10, 49657-49676(2022).

[6] Holla K S, Park N, Lee B. EFID: edge-focused image denoising using a convolutional neural network[J]. IEEE Access, 11, 9613-9626(2023).

[7] Gu Xuejing, Yang Baoshang, Liu Qiuyue. Image matching algorithm based on Gaussian filtering and AKAZE-LATCH[J]. Semiconductor Optoelectronics, 44, 639-644(2023).

[8] Li Wenjuan, Chen Jun, Zhang Yonggang. Research of medical image denoising based on improved weighted mean filtering[J]. Journal of Liaoning University (Natural Sciences Edition), 49, 30-35(2022).

[9] Xiao Dan, Huang Yuqing. Improved anisotropic diffusion image denoising algorithm[J]. Process Automation Instrumentation, 38, 1-3(2017).

[10] Buades A, Coll B, Morel J M. A review of image denoising algorithms, with a new one[J]. Multiscale Modeling & Simulation, 4, 490-530(2005).

[11] Dabov K, Foi A, Katkovnik V et al. Image denoising by sparse 3-D transform-domain collaborative filtering[J]. IEEE Transactions on Image Processing, 16, 2080-2095(2007).

[12] Yu Wangtao, Xu Peng, Bao Jie. Fast neutron image denoising method based on BM3D algorithm[J]. Nuclear Electronics & Detection Technology, 43, 369-375(2023).

[13] Tang Yan, Pan Wei, Zhang Li. Application of BM3D denoising algorithm in astronomical images[J]. Intelligent Computer and Applications, 12, 193-197(2022).

[14] Zhang Xiaolin, Jing Yuefeng, Liu Jun. Edge detection method based on Facet model for flash X-ray radiographs[J]. High Power Laser and Particle Beams, 22, 1640-1644(2010).

[15] Huynh-Thu Q, Ghanbari M. Scope of validity of PSNR in image/Video quality assessment[J]. Electronics Letters, 44, 800-801(2008).