Po-Wen Hsieh
謝博文
Applied Mathematics & Image Processing
Contact information:
E-mail: pwhsieh@nchu.edu.tw
Phone: 04-2284-0421#610
Department of Applied Mathematics, National Chung Hsing University No.145, Xingda Rd., South Dist., Taichung City 402027, Taiwan (台中市南區興大路145號 國立中興大學應用數學系)
Office: Room 610, Information Science Building (資訊科學大樓 610)
Education and Experiences
Ph.D. in Mathematics, National Central University, Taiwan, 2011. (Advisor: Professor Suh-Yuh Yang)
Professor, Department of Applied Mathematics, National Chung Hsing University, Taiwan. (2022/08~present)
Associate Professor, Department of Applied Mathematics, National Chung Hsing University, Taiwan. (2018/8~2022/07)
Assistant Professor, Department of Applied Mathematics, National Chung Hsing University, Taiwan. (2016/08~2018/07)
Assistant Professor, Department of Applied Mathematics, Chung Yuan Christian University, Taiwan. (2013/08~2015/07)
Postdoctoral Fellow, Mathematics, National Central University, Taiwan. (2012/08~2013/07)
We seek passionate students to work on applied mathematics, image processing, and computer vision.
Students
2025/08~, MS student, 政霆
2024/08~, MS student, 宜娉、子誠
2023/08~, MS student, 岱華 、茗舜
2022/08~2024/07, MS, 騰億
2021/08~2024/07, MS, 哲均
2021/08~2023/07, MS, 賀凱
2020/08~2022/07, MS, 俊霖 、君彤
2018/08~2021/01, MS, 逸展、笠嘉
2017/08~2019/07, MS, 勗泯、芝茵
2016/08~2018/07, MS, 鈺芳
Retinex-based image segmentation
bear.mp4Low-light image enhancement
3.mp4Underwater image enhancement
Retinex decomposition
Image stitching
Variational image fusion
Variational image enhancement
Variational image dehazing
Blind image deblurring
Edge-based image segmentation
Variational image denoising
Publications
Po-Wen Hsieh, Chung-Lin Tseng, and Suh-Yuh Yang*, Total variation distance-enhanced selective segmentation for medical images, submitted for publication, 2024.
Po-Wen Hsieh, Chung-Lin Tseng, and Suh-Yuh Yang*, Fractional laplacian-enhanced local-global intensity fitting energy for noisy and inhomogeneous image segmentation, submitted for publication, 2024.
Po-Wen Hsieh and Pei-Chiang Shao*, Variational model for simultaneous fusion and enhancement of multi-focus images, submitted for publication, 2023.
Po-Wen Hsieh* and Suh-Yuh Yang, Anisotropic $p$th-order TV-based Retinex decomposition with adaptive reflectance regularizer for low-light image enhancement, submitted for publication, 2024. (code)
Po-Wen Hsieh*, Chung-Lin Tseng, and Suh-Yuh Yang, Additive-bias-correction variational model for noisy and intensity-inhomogeneous image segmentation, accepted, 2025. (code)
Po-Wen Hsieh, Chung-Lin Tseng, and Suh-Yuh Yang*, Efficient variational segmentation with local intensity fitting for noisy and inhomogeneous images, Multimedia Systems, 30 (2024), Article 277.
Cheng-Shu You, Po-Wen Hsieh, and Suh-Yuh Yang*, A direct-forcing immersed boundary projection method for thermal fluid-solid interaction problems, Advances in Applied Mathematics and Mechanics, 15 (2023), pp. 1-29.
Po-Wen Hsieh* and Pei-Chiang Shao, Variational contrast-saturation enhancement model for effective single image dehazing, Signal Processing, 192 (2022), Article 108396.
Po-Wen Hsieh* and Pei-Chiang Shao, Hue-preserving image enhancement via complementary enhancing terms, Signal Processing, 195 (2022), Article 108491.
Po-Wen Hsieh and Pei-Chiang Shao*, Blind image deblurring based on the sparsity of patch minimum information, Pattern Recognition, 109 (2021), Article 107597.
Po-Wen Hsieh, Suh-Yuh Yang*, and Cheng-Shu You*, A direct-forcing immersed boundary projection method for simulating the dynamics of freely falling solid bodies in an incompressible viscous fluid, Annals of Mathematical Sciences and Applications, 5 (2020), pp. 75-100.
Po-Wen Hsieh, Pei-Chiang Shao, and Suh-Yuh Yang*, Adaptive variational model for contrast enhancement of low-light images, SIAM Journal on Imaging Sciences, 13 (2020), pp. 1-28.
Po-Wen Hsieh*, Pei-Chiang Shao, and Suh-Yuh Yang, Advection-enhanced gradient vector flow for active-contour image segmentation, Communications in Computational Physics, 26 (2019), pp. 206-232.
Po-Wen Hsieh, Pei-Chiang Shao, and Suh-Yuh Yang*, A regularization model with adaptive diffusivity for variational image denoising, Signal Processing, 149 (2018), pp. 214-228.
Tzyy-Leng Horng, Po-Wen Hsieh, Suh-Yuh Yang*, and Cheng-Shu You, A simple direct-forcing immersed boundary projection method with prediction-correction for fluid-solid interaction problems, Computers & Fluids, 176 (2018), pp. 135-152.
Po-Wen Hsieh, Suh-Yuh Yang*, and Cheng-Shu You, A robust finite difference scheme for strongly coupled systems of singularly perturbed convection-diffusion equations, Numerical Methods for Partial Differential Equations, 34 (2018), pp. 121-144.
Po-Wen Hsieh and Suh-Yuh Yang*, A new stabilized linear finite element method for solving reaction-convection-diffusion equations, Computer Methods in Applied Mechanics and Engineering, 307 (2016), pp. 362-382.
Po-Wen Hsieh, Yintzer Shih, Suh-Yuh Yang*, and Cheng-Shu You, A novel technique for constructing difference schemes for systems of singularly perturbed equations, Communications in Computational Physics, 19 (2016), pp. 1287-1301.
Po-Wen Hsieh, Ming-Chih Lai, Suh-Yuh Yang*, and Cheng-Shu You, An unconditionally energy stable penalty immersed boundary method for simulating the dynamics of an inextensible interface interacting with a solid particle, Journal of Scientific Computing, 64 (2015), pp. 289-316.
Po-Wen Hsieh, Suh-Yuh Yang*, and Cheng-Shu You, A high-accuracy finite difference scheme for solving reaction-convection-diffusion problems with a small diffusivity, Advances in Applied Mathematics and Mechanics, 6 (2015), pp. 637-662.
Huo-Yuan Duan, Po-Wen Hsieh, Roger C.E. Tan, and Suh-Yuh Yang*, Analysis of the small viscosity and large reaction coefficient in the computation of the generalized Stokes problem by a novel stabilized finite element method, Computer Methods in Applied Mechanics and Engineering, 271 (2014), pp. 23-47.
Huo-Yuan Duan, Po-Wen Hsieh, Roger C.E. Tan, and Suh-Yuh Yang*, Analysis of a new stabilized finite element method for the reaction-diffusion-convection equations with a large reaction coefficient, Computer Methods in Applied Mechanics and Engineering, 247-248 (2012), pp. 15-36.
Po-Wen Hsieh, Yintzer Shih, and Suh-Yuh Yang*, A tailored finite point method for solving steady MHD duct flow problems with boundary layers, Communications in Computational Physics, 10 (2011), pp. 161-182.
Po-Wen Hsieh and Suh-Yuh Yang*, Two new upwind difference schemes for a coupled system of convection-diffusion equations arising from the steady MHD duct flow problems, Journal of Computational Physics, 229 (2010), pp. 9216-9234.
Po-Wen Hsieh and Suh-Yuh Yang*, A novel least-squares finite element method enriched with residual-free bubbles for solving convection-dominated problems, SIAM Journal on Scientific Computing, 32 (2010), pp. 2047-2073.
Po-Wen Hsieh and Suh-Yuh Yang*, On efficient least-squares finite element methods for convection-dominated problems, Computer Methods in Applied Mechanics and Engineering, 199 (2009), pp. 183-196.
Po-Wen Hsieh and Suh-Yuh Yang*, A bubble-stabilized least-squares finite element method for steady MHD duct flow problems at high Hartmann numbers, Journal of Computational Physics, 228 (2009), pp. 8301-8320.
Mei-Chun Chen, Po-Wen Hsieh, Chun-Ting Li, Yun-Tsz Wang, and Suh-Yuh Yang*, On two iterative least-squares finite element schemes for the incompressible Navier-Stokes problem, Numerical Functional Analysis and Optimization, 30 (2009), pp. 436-461.
Research Activities:
Annual Meeting of Taiwanese Mathematical Society (speaker), January 14-15, 2025, National Central University, Taiwan.
NCTS Workshop on Computational Mathematics and Scientific Computing for Young Researchers (speaker), August 29-30, 2024, National Sun Yat-sen University, Taiwan.
TWSIAM Annual Meeting, May 18-19, 2024, National Chung Hsing University, Taiwan.
Annual Meeting of Taiwanese Mathematical Society, January 22-23, 2024, National Chengchi University, Taiwan.
TWSIAM Annual Meeting (speaker), May 20-21, 2023, National Taiwan Normal University, Taiwan.
Colloquium Talk (speaker), May 18, 2023, Department of Mathematics, National Center University, Taiwan.
Annual Meeting of Taiwanese Mathematical Society, January 16-17, 2023, National Tsing Hua University, Taiwan.
International Symposium on Applied Mathematics and Statistics, December 15, 2022, National Chung Hsing University, Taiwan.
TWSIAM Annual Meeting, July 23-24, 2022, National Yang Ming Chiao Tung University, Taiwan.
NCTS (Central Taiwan) computational mathematics workshop, April 21, 2021, National Chung Hsing University, Taiwan.
Annual Meeting on Differential Equations, January 15-16, 2021, National Chung Hsing University, Taiwan.
TWSIAM Annual Meeting, July 24-25, 2020, National Cheng Kung University, Taiwan.
Annual Meeting of Taiwanese Mathematical Society (speaker), December 5-6, 2020, Fu Jen Catholic University, Taiwan.
TWSIAM Annual Meeting (speaker), May 25-26, 2019, National Tsing Hua University, Taiwan.
Annual Meeting of Taiwanese Mathematical Society, December 8-9, 2019, National Taiwan Normal University, Taiwan.
SIAM East Asian Section Conference (speaker), June 22-25, 2018, The University of Tokyo, Japan.
TWSIAM Annual Meeting, May 26-27, 2018, National Taiwan University of Science and Technology, Taiwan.
Annual Meeting of Taiwanese Mathematical Society, December 9-10, 2017, National Chiayi University, Taiwan.
TWSIAM Annual Meeting (speaker), May 6-7, 2017, National Chengchi University, Taiwan.
Annual Meeting of Taiwanese Mathematical Society, December 10-11, 2016, National Dong Hwa University, Taiwan.
NCTS/NCU Seminar on Scientific Computing (speaker), November 7, 2016, National Central University, Taiwan.
One-day Workshop on Differential Equations, National Chung Hsing University, Taiwan.
TWSIAM Annual Meeting, May 28-29, 2016, National Chung Hsing University, Taiwan.
Colloquium Talk (speaker), February 17, 2016, Department of Applied Mathematics, National University of Kaohsiung, Taiwan.
NCTS Workshop on Computational Mathematics (speaker), May 15, 2015, National Chiao Tung University, Taiwan.