Application of Linearized Anisotropic Diffusion Equation to Edge-Preserving Image Smoothing

• 作者: YUANZejian ZHANGYuanlin ZHENGNanning
• 来源期刊: 电子学报(英文版)
• 学科: 工学
• 关键词: 非均匀性扩散 边缘保留滤波 线性化 附加操作均分 图像处理
• 年，卷（期）: 2004,（1）
• 页码范围: 16-18
• 页数: 3页
• 分类号: TP391.41
• 语种: 中文

摘要

A stable anisotropic diffusion model for edge-preservlng image smoothing is presented. By comparison with existing diffusion models~ this model has two significant new features. The first is that the diffusion model has the ability to adjust the diffusion coefficient and to regulate diffusion orientation simultaneously. The second is that the diffusion model being nonlinear in essence is linearized along time coordinates which makes the model more stable and thus the complexity of computation is reduced greatly. We use an Additive operator splitting scheme (AOS) that is an efficient and stable numerical method to implement the edge-preservlng image smoothing. The experimental results show that the model proposed in this paper is not only stable and efficient but can preserve image edge.