期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2013
卷号：10
期号：1
出版社：IJCSI Press
摘要：The complex fourth-order as well as the complex shock partial differential equations (PDEs) is introduced for noise removal from medical images and 2D turbulent flow. The Lattice Boltzmann method (LBM) with a single relaxation model is used to obtain the velocity field. The two filtering methods are applied against the vorticity field of the flow. Comparisons between the results of the two methods for medical images and 2D turbulence are extensively studied. Investigation and identification of the filtering parameters are also considered. It is shown that the proposed filtering methods are effective for noise removal in both applications. Results indicate that the complex fourth-order PDE method extracts the coherent and incoherent parts more clearly compared with the shock method.
关键词：Complex fourth;order and shock PDEs filtering methods; medical images; 2D turbulence
