Nonlinear Diffusion Model for Fabric Image Denoising

2012 ◽  
Vol 627 ◽  
pp. 484-488
Author(s):  
Da Li Chen ◽  
Ding Yu Xue ◽  
Yang Quan Chen
Keyword(s):  
Image Denoising ◽  
Diffusion Model ◽  
Nonlinear Diffusion ◽  
Diffusion Models ◽  
Perceptual Comparison

In this paper, five nonlinear diffusion models for fabric image denoising are introduced. The advantages and drawbacks of these five models are described through describing their implementation methods. Quantitative and perceptual comparison experiments are given to verify the performance of these methods. Finally some valuable conclusions about denoising performance of these five models are present which is helpful for choosing and using these models in fabric image denoising.

scholarly journals Image Denoising via Multiscale Nonlinear Diffusion Models

2017 ◽  
Vol 10 (3) ◽  
pp. 1234-1257 ◽  
Author(s):  
Wensen Feng ◽  
Peng Qiao ◽  
Xuanyang Xi ◽  
Yunjin Chen
Keyword(s):  
Image Denoising ◽  
Nonlinear Diffusion ◽  
Diffusion Models

Numerical Solution of a Nonlinear Diffusion Model for Soybean Hydration with Moving Boundary

2015 ◽  
Vol 11 (5) ◽  
pp. 587-595 ◽  
Author(s):  
Douglas J. Nicolin ◽  
Gisleine E. C. da Silva ◽  
Regina Maria M. Jorge ◽  
Luiz Mario M. Jorge
Keyword(s):  
Differential Equation ◽  
Diffusion Model ◽  
Nonlinear Diffusion ◽  
Numerical Scheme ◽  
Moving Boundary ◽  
Grid Method ◽  
Variable Diffusivity ◽  
Variable Space ◽  
Diffusive Fluxes ◽  
Moisture Profiles

Abstract Variable diffusivity and volume of the grains are taken into account in the diffusion model that describes mass transfer in soybean hydration. The variable space grid method (VSGM) was used to consider the increase in grain size, and the diffusivity was considered an exponential function of the moisture content. An equation for the behavior of the grain radius as a function of time was obtained by global mass balance over the soybean grain and the differential equation considered that the increase in radius happens due to the influence of the convective and diffusive fluxes at the surface of the grains. The model was solved by an explicit numerical scheme which presented satisfactory results. The results showed the behavior of moisture profiles obtained as a function of time and radial position and also showed how the grain radius increased with time and changed the solution domain of the diffusion equation.

scholarly journals On a doubly nonlinear diffusion model of chemotaxis with prevention of overcrowding

2008 ◽  
Vol 32 (13) ◽  
pp. 1704-1737 ◽  
Author(s):  
Mostafa Bendahmane ◽  
Raimund Bürger ◽  
Ricardo Ruiz-Baier ◽  
José Miguel Urbano
Keyword(s):  
Diffusion Model ◽  
Nonlinear Diffusion ◽  
Doubly Nonlinear

scholarly journals A Hybrid Model for Image Denoising Combining Modified Isotropic Diffusion Model and Modified Perona-Malik Model

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 33568-33582 ◽  
Author(s):  
Na Wang ◽  
Yu Shang ◽  
Yang Chen ◽  
Min Yang ◽  
Quan Zhang ◽  
...  
Keyword(s):  
Image Denoising ◽  
Diffusion Model ◽  
Hybrid Model ◽  
Isotropic Diffusion

Image Denoising Algorithm with Nonlinear Diffusion Image Based on Region Homogeneity Measure

2009 ◽  
Vol 29 (6) ◽  
pp. 1530-1535
Author(s):  
毛玉星 Mao Yuxing ◽  
何为 He Wei ◽  
张占龙 Zhang Zhanlong
Keyword(s):  
Image Denoising ◽  
Nonlinear Diffusion
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