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. (Advisor: Professor Suh-Yuh Yang)
Professor, Department of Applied Mathematics, National Chung Hsing University, Taiwan. (2022/8~present)
Associate Professor, Department of Applied Mathematics, National Chung Hsing University, Taiwan. (2018/8~2022/7)
Assistant Professor, Department of Applied Mathematics, National Chung Hsing University, Taiwan. (2016/8~2018/7)
Assistant Professor, Department of Applied Mathematics, Chung Yuan Christian University, Taiwan. (2013/8~2015/7)
Postdoctoral Fellow, Mathematics, National Central University, Taiwan. (2012/8~2013/7)
We seek passionate and innovative students to work on applied mathematics, image processing, and computer vision.
Students
2024/08~, MS, 宜娉、子誠
2023/08~, MS, 岱華 、茗舜
2022/08~2024/07, MS, 騰億 (服兵役)
2021/08~2024/07, MS, 哲均
2021/08~2023/07, MS, 賀凱 (影像工程師)
2020/08~2022/07, MS, 俊霖 (軟體工程師)、君彤 (影像工程師)
2018/08~2021/01, MS, 逸展、笠嘉 (影像工程師)
2017/08~2019/07, MS, 勗泯、芝茵 (教師)
2016/08~2018/07, MS, 鈺芳 (軟體工程師)
Retinex-based image segmentation
bear.mp4Low-light image enhancement
3.mp4Underwater image enhancement
Retinex decomposition
Image stitching
Variational model for simultaneous fusion and enhancement
Variational image enhancement
Variational image dehazing
Blind image deblurring
Active-contour image segmentation
Variational image denoising
Publications
Po-Wen Hsieh*, Chung-Lin Tseng, and Suh-Yuh Yang, Additive-bias-correction variational model for noisy and intensity-inhomogeneous image segmentation, 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 Cheng-Shu You, Underwater image enhancement via nonlinear color stretching and Retinex enhancement, preprint, 2024.
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, 2023.
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, 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:
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 on 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, National Chung Hsing University, Taiwan, May 28-29, 2016.
Colloquium Talk on 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.