International Journal Papers

• X. Ren, S.J. Lee, "Example-Based Super-Resolution Image Reconstruction for Positron Emission Tomography Using Sparse Coding," IEEE Access, 12, pp.182590-182602, Dec. 2024.

• W. Zhu, S.J. Lee, "Similarity-Driven Fine-Tuning Methods for Regularization Parameter Optimization in PET Image Reconstruction," Sensors, 23(13), pp. 5783:1-19, June 2023.

• X. Ren, J.E. Jung, W. Zhu, S.J. Lee, "Penalized-Likelihood PET Image Reconstruction Using Similarity-Driven Median Regularization," Tomography, 8(1), pp. 158-174, Jan. 2022.

• X. Ren, S.J. Lee, "Super-resolution Image Reconstruction from Projections Using Non-local and Local Regularizations," Journal of Imaging Science and Technology, 65(1), pp. 010502:1-11, Jan. 2021.

• J.E. Jung, S.J. Lee, "Penalized-Likelihood Image Reconstruction for Transmission Computed Tomography Using Adaptive Median Regularization," IEEE Access, 8, pp. 189490-189502, Oct. 2020.

• X. Ren, S.J. Lee, "Image Reconstruction for Emission Tomography Using Intensity Normalised Patch-Based Regularisation," IET Image Processing, 13(5), pp. 794-803, Apr. 2019.

• V.G. Nguyen, S.J. Lee, "GPU-Accelerated Iterative Reconstruction from Compton Scattered Data Using a Matched Pair of Conic Projector and Backprojector," Computer Methods and Programs in Biomedicine, vol. 131, pp. 27-36, July 2016.

• V.G. Nguyen, S.J. Lee, "Parallelizing a Matched Pair of Ray-Tracing Projector and Backprojector for Iterative Cone-Beam CT Reconstruction," IEEE Trans. Nuclear Science, 62(1), pp. 171-181, Feb. 2015.

• V.G. Nguyen, S.J. Lee, "Incorporating Anatomical Side Information into PET Reconstruction Using Nonlocal Regularization," IEEE Trans. Image Processing, 22(10), pp. 3961-3973, Oct. 2013.

• S.M. Kim, H. Seo, J. H. Park, C.H. Kim, C.S. Lee, S.J. Lee, D.S. Lee, J.S. Lee, "Resolution Recovery Reconstruction for a Compton Camera," Physics in Medicine and Biology, 58(9), pp. 2823-2840, May 2013.

• V.G. Nguyen, S.J. Lee, "Graphics Processing Unit-Accelerated Iterative Tomographic Reconstruction with Strip-Integral System Model," Optical Engineering, 51(9), pp. 093203:1-11, Sep. 2012.

• V.G. Nguyen, S.J. Lee, M.N. Lee, "GPU-Accelerated 3-D Bayesian Image Reconstruction from Compton Scattered Data," Physics in Medicine and Biology, 56, pp. 2817-2836, May 2011.

• V.G. Nguyen, S.J. Lee, "Image Reconstruction from Limited-View Projections by Convex Nonquadratic Spline Regularization," Optical Engineering, 49(3), pp. 037001:1-8, Mar. 2010.

• S.M. Kim, J.S. Lee, C.S. Lee, C.H. Kim, M.C. Lee, D.S. Lee, S.J. Lee, "Fully Three-Dimensional OSEM-Based Image Reconstruction for Compton Imaging Using Optimized Ordering Schemes," Physics in Medicine and Biology, 55, pp. 5007-5027, Sep. 2010.

• S.J. Lee, "Training Set Approach to Smoothing Parameter Estimation for Spline-Regularized Tomographic Reconstruction," Optical Engineering, 48(2), pp. 027003:1-8, Feb. 2009.

• S.J. Lee, "Simultaneous Reconstruction and Edge Detection of Tomographic Images Using Accelerated Deterministic Annealing," Optical Engineering, 46(5), pp. 057006:1-10, May 2007.

• S.M. Kim, J.S. Lee, M.N. Lee, J.H. Lee, C.S. Lee, C.H. Kim, D.S. Lee, S.J. Lee, ”Two Approaches to Implementing Projector-Backprojector Pairs for 3D Reconstruction from Compton Scattered Data," Nuclear Instruments and Methods in Physics Research A, 571, pp. 255-258, Feb. 2007.

• A. Leow, C.L. Yu, S.J. Lee, S.C. Huang, H. Protas, R. Nicolson, K.M. Hayashi, A.W. Toga, P.M. Thompson, “Brain Structural Mapping Using a Novel Hybrid Implicit/Explicit Framework Based on the Level-Set Method," NeuroImage, 24(3), pp. 910-927, Feb. 2005.

• S.J. Lee, "Ordered Subsets Bayesian Tomographic Reconstruction Using 2-D Smoothing Splines as Priors," Computer Methods and Programs in Biomedicine, 72(1), pp. 27-42, Sep. 2003.

• S.J. Lee, "Spline-Regularized Ordered Subsets Expectation Maximization Algorithms for Emission Computed Tomography," Journal of Electronic Imaging, 12(1), pp. 17-24, Jan. 2003.

• S.J. Lee, "Accelerated Deterministic Annealing Algorithms for Transmission CT Reconstruction Using Ordered Subsets," IEEE Trans. Nuclear Science, 49(5),” pp. 2373-2380, Oct. 2002.

• S.J. Lee, "Performance Comparison of Convex-Nonquadratic Priors for Bayesian Tomographic Reconstruction," Journal of Electronic Imaging, 9(3), pp. 242-250, July 2000.

• S.J. Lee, Y. Choi, G. Gindi, "Validation of New Gibbs Priors for Bayesian Tomographic Reconstruction Using Numerical Studies and Physically Acquired Data," IEEE Trans. Nuclear Science,  46(6), pp. 2154-2161, Dec. 1999.

• S.J. Lee, I.T. Hsiao. G.R. Gindi, "The Thin Plate as a Regularizer in Bayesian SPECT Reconstruction," IEEE Trans. Nuclear Science, 44(3), pp. 1381-1387, June 1997.

• A. Rangarajan, S.J. Lee, G. Gindi, "Mechanical Models as Priors in Bayesian Tomographic Reconstruction," Maximum Entropy and Bayesian Methods, K.M. Hanson, R.N. Silver, eds., Kluwer, pp. 117-124, 1996.

• S.J. Lee, A. Rangarajan, G. Gindi, "Bayesian Image Reconstruction in SPECT Using Higher Order Mechanical Models as Priors," IEEE Trans. Medical Imaging, 14(4), pp. 669-680, Dec. 1995. (Summarized in the Yearbook of Nuclear Medicine 1997, A. Gottshalk, ed., pp. 374-375.)

• S.J. Lee, G.R. Gindi, I.G.Zubal, A. Rangarajan, "Using Ground-Truth Data to Design Priors in Bayesian SPECT Reconstruction," Information Processing in Medical Imaging, Y. Bizais, C. Barillot, R.D. Paola, eds., Kluwer, pp. 27-38, 1995.

International Conference Papers

• H. Wang, S.J. Lee, "Optimizing Hyperparameters in Regularized Tomographic Reconstruction via Pixel-wise Adaptive Fine-Tuning," Proc. SPIE Medical Imaging, vol. 13405, Feb. 2025.

• J. Lee, S.J. Lee, "Using Diffusion Models for CNN-Based Smoothing Parameter Tuning in Regularized PET Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2023.

• J. Lee, S.J. Lee, "Smoothing-Parameter Tuning for Regularized PET Image Reconstruction Using Deep Learning," Proc. SPIE Medical Imaging, vol. 12463, Feb. 2023.

• W. Zhu, S.J. Lee, "Similarity-Driven Hyperparameter Tuning for Regularized PET Image Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2022.

• X. Ren, S.J. Lee, “Super-Resolution Image Reconstruction for PET Using Joint Sparse Coding and Non-local Regularizations," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct. 2021.

• X. Ren, S.J. Lee, “Joint Sparse Coding-Based Super-Resolution PET Image Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2020.

• X. Ren, S.J. Lee, “Using Sparse Coding in Super-Resolution Reconstruction for PET," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2019.

• X. Ren, S.J. Lee, “Improving Nonlocal Approach to Super-Resolution Reconstruction in PET with the Aid of Local Regularization," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2018.

• J.E. Jung, S.J. Lee, “Non-local Weighted Median Regularization for PET Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2018.

• X. Ren, S.J. Lee, “High-Resolution Image Reconstruction for PET Using Local and Non-local Regularizations," Proc. IS&T International Symposium on Electronic Imaging, Computational Imaging XV, COIMG443, Jan. 2017.

• J.E Jung, S.J. Lee, “Space-Variant Smoothing in Median-Regularized Reconstruction for Transmission Tomography," Proc. IS&T International Symposium on Electronic Imaging, Computational Imaging XV, COIMG446, Jan. 2017.

• X. Ren, S.J. Lee, “A Comparative Study of the Effects of Using Normalized Patches for Penalized Likelihood Tomographic Reconstruction," Proc. SPIE Medical Imaging, vol. 9783, Feb. 2016.

• J.E Jung, S.J. Lee, “An Adaptive Method for Weighted Median Priors in Transmission Tomography Reconstruction," Proc. SPIE Medical Imaging, vol. 9783, Feb. 2016.

• J.E. Jung, S.J. Lee, “Edge-Preserving Iterative Reconstruction for Transmission Tomography Using Convex Weighted Median Priors," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2015.

• V.G. Nguyen, S.J. Lee, “Parallelizing Ray-Tracing Method for Matched Conical Projector and Backprojector in Compton Imaging," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2014.

• V.G. Nguyen, S.J. Lee, “Acquiring Tomographic Images from Panoramic X-Ray Scanners," Proc. SPIE Medical Imaging, vol. 9033, Feb. 2014.

• V.G. Nguyen, J.E. Jeong, S.J. Lee, “GPU-Accelerated Iterative 3D CT Reconstruction Using Exact Ray-Tracing Method for Both Projection and Backprojection," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct. 2013.

• M.N. Lee, S.J. Lee, “Rebinning of Conical Projection Data in Compton Imaging," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct. 2012.

• V.G. Nguyen, S.J. Lee, “GPU-Accelerated Exact Strip Integrals for 2-D Iterative Reconstruction in Emission Tomography," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct. 2012.

• V.G. Nguyen, S.J. Lee, “Anatomy-Based PET Image Reconstruction Using Nonlocal Regularization," Proc. SPIE Medical Imaging, vol. 8313, Feb. 2012.

• M.N. Lee, S.J. Lee, K.M. Kim, “Fourier Rebinning Applied to 3-D Reconstruction in Compton Imaging," Proc. SNM 58th Annual Meeting, June 2011.

• V.G. Nguyen, S.J. Lee, “Nonlocal-Means Approaches to Anatomy-Based PET Image Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct. 2010.

• S.J. Lee, V.G. Nguyen, M.N. Lee, “Rapid 3-D Regularized EM Reconstruction for Compton Cameras Using GPU," Proc. SPIE Medical Imaging, vol. 7622, Feb. 2010.

• V.G. Nguyen, S.J. Lee, M.N. Lee, “GPU Accelerated Statistical Image Reconstruction for Compton Cameras," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct. 2009.

• S.J. Lee, M.N. Lee, V.G. Nguyen, S.M. Kim, J.S. Lee, “Three-Dimensional Edge-Preserving Regularization for Compton Camera Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2008.

• M.N. Lee, S.J. Lee, V.G. Nguyen, S.M. Kim, J.S. Lee, “3-D Maximum Likelihood Reconstruction of Compton Camera Images Using a Row-Action Method," Proc. 55th SNM Annual Meeting,  June 2008.

• S.M. Kim, J.S. Lee, S.J. Lee, “Fully Three-Dimensional Image Reconstruction for Compton Imaging Using Ordered Subsets of Conical Projection Data," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, Nov. 2007.

• S.J. Lee, “Validation of Training Set Approaches to Hyperparameter Estimation for Bayesian Tomography," Proc. SPIE: Applications of Digital Image Processing XXX, vol. 6696, pp. 66962F:1-12, Aug. 2007.

• S.J. Lee, A Block-Iterative Deterministic Annealing Algorithm for Bayesian Tomographic Reconstruction," Proc. SPIE: Computational Imaging IV, vol. 6065, Jan. 2006.

• S.J. Lee, S.M. Kim, "Performance Comparison of Projector-Backprojector Pairs for Iterative Tomographic Reconstruction," Proc. SPIE: Applications of Digital Image Processing XXVI, vol. 5203, Aug. 2003.

• S.J. Lee, "Accelerated Deterministic Annealing Algorithms for Transmission Tomography Using Ordered Subsets of Projection Data," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, vol. 3, pp. 1751-1755, Nov. 2001.

• S.J. Lee, "Simultaneous Reconstruction and Edge Detection of Transmission Images in Emission Computed Tomography," Proc. SPIE: Applications of Digital Image Processing XXIV, vol. 4472, pp. 555-566, July 2001.

• S.J. Lee, "Accelerated Coordinate Descent Methods for Bayesian Reconstruction Using Ordered Subsets of Projection Data," Proc. SPIE: Mathematical Modeling, Estimation, and Imaging, vol. 4121, pp. 170-181, July 2000.

• S.J. Lee, "Penalized Likelihood Image Reconstruction for Emission Tomography Using Higher Order Convex-Nonquadratic Priors," Proc. SPIE: Mathematical Modeling, Bayesian Estimation, and Inverse Problems, vol. 3816, pp. 172-182, Jul. 1999.

• S.J. Lee, Y. Choi, G. Gindi, "Validation of New Gibbs Priors for Bayesian Tomographic Reconstruction Using Physically Acquired Data ," Proc. IEEE  Nuclear Science Symposium and Medical Imaging Conference, vol. 3, pp. 1589-1593, Nov. 1998.

• S.J. Lee, "An Improved Method for Reduction of Truncation Artifact in Magnetic Resonance Imaging," Proc. SPIE: Applications of Digital Image Processing, vol. 3460, pp. 587-598, July 1998.

• S.J. Lee, I.T. Hsiao, G.R. Gindi, "Quantitative Effects of Using Thin-Plate Priors in Bayesian SPECT Reconstruction," Proc. SPIE: Image Reconstruction and Restoration II, vol. 3170, pp.252-263, July 1997.

• S.J. Lee, G. Gindi, "The Thin Plate as a Regularizer in Bayesian SPECT Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, vol.3, pp. 1613-1617, Nov. 1996.

• S.J. Lee, A. Rangarajan, G. Gindi, "A Comparative Study of the Effects of Using Higher Order Mechanical Priors in SPECT Reconstruction," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, vol.4, pp. 1696-1700, Nov. 1994.

• S.J. Lee, A. Rangarajan, G. Gindi, "Weak Plate Mechanical Models in Bayesian Reconstruction for Emission Tomography," Proc. IEEE Nuclear Science Symposium and Medical Imaging Conference, vol.3, pp. 1533-1537, Nov. 1993.

Korean Journal Papers

• 이재훈, 엄소연, 이수진, "양전자 방출 단층 촬영을 위한 3차원 최대사후 영상재구성에서 평활 파라미터의 적응형 미세 조정," J. Biomedical Engineering Research, 45(5), pp. 205-216, 2024년 10월.

• 정지은, X. Ren, 이수진, “투과 단층촬영에서 공간가변 평활화를 사용한 경계보존 반복연산 재구성," J. Biomedical Engineering Research, 38(5), pp. 219-226, 2017년10월.

• 정지은, 이수진, “스플라인 정칙자를 사용한 투과 단층촬영을 위한 벌점우도 영상재구성," J. Biomedical Engineering Research, 36(5), pp. 211-220, 2015년10월.

• 정지은, 이수진, “투과 컴퓨터 단층쵤영을 위한 모델 기반 반복연산 재구성에서 투사선 구동 시스템 모델의 성능 비교," J. Biomedical Engineering Research, 35(5), pp. 142-150, 2014년 10월.

• 이미노, 이수진, 서희, V.G. Nguyen, “컴프턴 카메라를 위한 재배열 기반 확정론적 영상재구성법," J. Biomedical Engineering Research, 32(1), pp. 15-24, 2011년 3월.

• 이미노, 이수진, V.G. Nguyen, 김수미, 이재성, “행작용 최대우도 알고리즘을 사용한 컴프턴 산란 데이터로부터의 3차원 영상재구성," J. Biomedical Engineering Research, 30(1), pp. 56-65, 2009년 2월.

• 이수진, “핵의학 단층영상 재구성을 위한 통계학적 방법," 핵의학 분자영상, 49(2), pp. 118-126, 2008년 4월.

• 이수진, “방출전산화단층촬영기의 영상 형성과 재구성 원리," 한국정밀공학회지, 25(1), pp. 51-62, 2008년 1월.

• 이미노, 이수진, 김수미, 이재성, “컴프턴 카메라 영상재구성을 위한 타원누적법," J. Biomedical Engineering Research, 28(4), pp. 520-529, 2007년 8월.

• 김수미, 이재성, 이수진, “모사된 컴프턴 카메라 투사데이터의 재구성을 위한 OSEM 알고리즘의 부분집합 구성법 비교 연구," 핵의학 분자영상, 41(3), pp. 234-240, 2007년 6월.

• 김수미, 이수진, 김용호, “반복법을 사용한 단층영상 재구성을 위한 투사기 및 역투사기의 고속구현," J. Biomedical Engineering Research, 24(5), pp. 473-480, 2003년 10월.

• S.J. Lee, H.S. Kim, "A Spline-Regularized Sinogram Smoothing Method for Filtered Backprojection Tomographic Reconstruction," J. Biomedical Engineering Research, 22(4), pp. 311-320, Aug. 2001.

• 임기천, 최 용, 김종호, 이수진 외, "Gibbs 선행치를 사용한 배열된 부분집합 기대값 최대화 방출단층영상 재구성법에 관한 연구," J. Biomedical Engineering Research, 21(5), pp. 441-448, 2000년 10월.

•  S.J. Lee, "Implementing a Fast Projector-Backprojector for EM-Based Tomographic Reconstruction," J. Biomedical Engineering Research, 20(6), pp. 523-529, Dec. 1999.

• 이수진, "방출전산화 단층촬영술을 위한 통계학적 영상재구성법 ," 전기학회지, 48(8), pp. 33-39, 1999년 8월.

• S.J. Lee, "Using Bayesian Approaches to Reduce Truncation Artifact in Magnetic Resonance Imaging," J. Biomedical Engineering Research, 19(6), pp. 585-593, Dec. 1998.

• S.J. Lee, "Quantitative Analysis of Bayesian Reconstruction: Effects of Using Higher-Order Gibbs Priors," J. Biomedical Engineering Research, 19(2), pp. 133-141, Apr. 1998.

Ph.D. Thesis

• S.J. Lee, Bayesian Image Reconstruction in Emission Computed Tomography Using Mechanical Models as Priors, Stony Brook University, Stony Brook, New York, August 1995. (PS/PDF versions available upon request. Contact sjlee@pcu.ac.kr)