An Anisotropic Diffusion Model for Medical Image Smoothing by Using the Lattice Boltzmann Method

摘要：

The anisotropic diffusion equation model proposed by the Perona and Malik is sometimes unstable.In this paper,we introduce an anisotropic diffusion model based-on the Lattice Boltzmann method,and apply it to the fast anisotropic smoothing for medical images.Furthermore,we show that the LBM-based model is stable if the relaxation parameter is equal to or larger than one but smaller than two.To quantitatively evaluate and validate the model in medical image smoothing,we compared the model with Perona and Malik’s method by calculating the signal to noise ratio.The experimental results show that our method outperforms over Perona and Malik’s method in image denoising.

关键词： Lattice Boltzmann method Anisotropic equation Image smoothing Evolution equation

作者: Yu Chen Zhuangzhi Yan YueHong Qian

作者单位: School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,China

会议类型: 国际会议

会议名称: 7th Asian-Pacific Conference on Medical and Biological Engineering(第七届亚太地区生物工程学术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-04-22（万方平台首次上网日期，不代表论文的发表时间）