个人简介

天津师范大学数学科学学院教师, 南开大学博士, 博士期间曾公派到新加坡国立大学数学系联合培养。主要研究方向包括图像处理中的变分方法与模型驱动深度学习等, 已在国际图像科学及计算数学杂志比如 SIAM J. Scientific Computing, SIAM J. Imaging Sciences, Math. Comput.等上发表多篇学术论文, 主持国家自然科学基金项目2项, 参与多项国家自然科学基金项目。

研究方向

图像处理的变分方法、模型驱动深度学习

承担课程

数学模型与实验、数值分析、C语言基础、数据库原理与应用、数字图像处理

科研项目

1. 国家自然科学基金面上项目, 高阶几何变分模型的双线性约化与快速算法, 2027年1月-2030年12月, 主持

2. 国家自然科学基金青年项目, 基于球面约束和小波框架正则化的磁共振图像处理变分模型与快速算法, 2024年1月-2026年12月, 主持

3. 国家自然科学基金面上项目, 高维叠层成像重建及并行计算, 2023年1月-2026年12月, 参与

4. 国家自然科学基金面上项目, 图像恢复与分解问题中非凸非光滑模型的下界理论和快速算法, 2019年1月-2022年12月, 参与

学术论文

1.  Jun Shi, Zhifang Liu*, Chunlin Wu, Yiming Gao, and Huibin Chang*. Learned spherical ADMM for Rician MRI denoising, Inverse Problems, 2026, 42(7): 075020.

2.  Zhifang Liu, Tongke Wang, and Guangyan Wang. A Two-Stage Approach for Nonlinear Weakly Singular Volterra Integral Equations: Local Psi-Series Expansion and Piecewise Spectral Collocation, Mathematics and Computers in Simulation, 2026, 250: 640–663.

3.  Zhifang Liu, Huibin Chang, and Yiming Gao. Minimizing Mean Curvature of Image Surface via Bilinear Decomposition for Image Reconstruction, Journal of Mathematical Imaging and Vision, 2025, 67(6): 55.

4.  Zhifang Liu, Tongke Wang, and Yuyu Li, A Hybrid of Psi-Series Approach and Spectral Collocation Method for Two-Term Fractional Differential Equation with Singular Solution, Calcolo, 2025, 62(4): 43.

5.  Zhifang Liu, Baochen Sun, Xue-Cheng Tai, Qi Wang, and Huibin Chang, A Fast Minimization Algorithm for the Euler Elastica Model Based on a Bilinear Decomposition, SIAM Journal on Scientific Computing, 2024, 46(1): A290–A312.

6.  Zhifang Liu, Huibin Chang and Yuping Duan, Variational Rician Noise Removal via Splitting on Spheres, SIAM Journal on Imaging Sciences, 2022, 15(2): 521–549.

7.  Tongyao Pang, Chunlin Wu and Zhifang Liu*, A cubic spline penalty for sparse approximation under tight frame balanced model, Advances in Computational Mathematics, 2020, 46(2): 36.

8.  Zhifang Liu, Samad Wali, Yuping Duan, Huibin Chang, Chunlin Wu and Xue-Cheng Tai, Proximal ADMM for Euler's Elastica Based Image Decomposition Model, Numerical Mathematics: Theory, Methods and Applications, 2019, 12(2): 370–402.

9.  Chunlin Wu, Zhifang Liu*, and Shuang Wen, A general truncated regularization framework for contrast-preserving variational signal and image restoration: Motivation and implementation, Science China Mathematics, 2018, 61(9): 1711–1732.

10. Tongke Wang, Zhifang Liu, and Zhiyue Zhang, The modified composite Gauss type rules for singular integrals using Puiseux expansions, Mathematics of Computation, 2017, 86(303): 345–373.

11. Zhifang Liu, Tongke Wang, and Guanghua Gao, A Local Fractional Taylor Expansion and Its Computation for Insufficiently Smooth Functions, East Asian Journal on Applied Mathematics, 2015, 5(2): 176–191.

专著章节

1.  Zhifang Liu, Yuping Duan, Chunlin Wu and Xue-Cheng Tai, On variable splitting and augmented Lagrangian method for total variation-related image restoration models, In: K. Chen, C.-B. Schönlieb, X.-C. Tai, and L. Younces (eds.), Handbook of Mathematical Models and Algorithms in Computer Vision and Imaging, Springer, 2022.