吉林大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (06): 1646-1648.

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Non-local diffusion model to remove multiplicative noises

LIU Qiang1,YIN Jing-xue1,LI Xiao-feng2,SONG Hui-juan1   

  1. 1.College |of Mathematics,Jilin University,Changchun 130012,China;2.Northeast Institute of Geography and Agroecology,Chinese Academy of Science,Changchun 130012,Chin
  • Received:2008-09-26 Online:2009-11-01 Published:2009-11-01

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Abstract:

A model for the removal of multiplicative noises was proposed based on the non-local diffusion method. Under the assumption that the image is corrupted by Gaussian noise, the energy functional for image recovery was established and a partial differential equation was obtained by the calculus of variation. Experiments on synthetic image and realworld image were conducted. Results show that the denoising effect of the proposed model is better than that of the model based on bounded variation.

Key words: information processing technology, multiplicative noise, non-local diffusion, PDE, variation

CLC Number: 

  • TP751
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