1. Multi-Frame Super-Resolution Reconstruction Algorithm Based on Diffusion Tensor Regularization Term
- Author
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Zuofeng Zhou, Hua Wang, Xiao Dong Zhao, Jia Hai Tan, Guang Sen Liu, Long Ren, Jian Zhong Cao, and Deng Shan Wu
- Subjects
Mathematical optimization ,Robustness (computer science) ,Anisotropic diffusion ,Reconstruction algorithm ,General Medicine ,Anisotropy ,Superresolution ,Algorithm ,Diffusion MRI ,Mathematics ,Multi frame ,Energy functional - Abstract
This paper presents a multi-frame super-resolution (SR) reconstruction algorithm based on diffusion tensor regularization term. Firstly, L1-norm structure is used as data fidelity term, anisotropic diffusion equation with directional smooth characteristics is introduced as a prior knowledge to optimize reconstruction result. Secondly, combined with shock filter, SR reconstruction energy functional is established. Finally, Euler-Lagrange equation based on nonlinear diffusion model is exported. Simulation results validate that the proposed algorithm enhances image edges and suppresses noise effectively, which proves better robustness.
- Published
- 2014
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