Image noise cancellation using linear matrix inequality and cellular neural network

OPTICS COMMUNICATIONS

卷:281

Article

Su, Te-Jen¹  Wei, Cian-Pin¹  Huang, Shih-Chun¹  Hou, Chia-Ling¹ 

[1] Natl Kaohsiung Univ Appl Sci, Dept Elect Engn, Kaohsiung 807, Taiwan

关键词: CNN;    LMI;    Global asymptotic stability;    Lyapunov;   

DOI  :  10.1016/j.optcom.2008.08.025

来源: Elsevier

【 摘 要 】

In this paper, the technique of image noise cancellation is presented by employing cellular neural networks (CNN) and linear matrix inequality (LMI). The main objective is to obtain the templates of CNN by using a corrupted image and a corresponding desired image. A criterion for the uniqueness and global asymptotic stability of the equilibrium point of CNN is presented based on the Lyapunov stability theorem (i.e., the feedback template A of CNN is solved at this step), and the input template B of CNN is designed to achieve desirable output by using the property of saturation nonlinearity of CNN. It is shown that the problem of image noise cancellation can be characterized in terms of LMIs. The simulation results indicate that the proposed method is useful for practical application. (C) 2008 Elsevier B.V. All rights reserved.

【 授权许可】

Free