摘要
针对具有线性纹理特征的图像,对基于偏微分方程的一致增强性扩散去噪方法进行了研究,详细分析了它的扩散去噪过程和纹理结构的保护及增强,设计出具体的算法步骤。在此基础上,针对线性结构图像序列,给出了三维一致增强性扩散模型。在选择合适的扩散参数情况下,一致增强性扩散算法不但使具有线性结构图像的信噪比有明显的提高,而且可以很好的保护和增强线性结构,具有广泛的应用领域。
According to the image with linear texture characters, the suppressing noise model of coherence enhancing diffusion based on partial differential equation is researched. Then, its performances ofsuppressing noise, protecting and enhancing texture are analyzed and an actual coherence enhancing diffusion algorithm is designed. For serial images with linear structure, 3D coherence enhancing diffusion model is introduced. When some parameters used in the diffusion model are suitably selected, not only noise of image with linear structure is evidently eliminated by coherence enhancing diffusion algorithm, but also structure characters of image could be protected and enhanced. So coherence enhancing diffusion algorithm could be applied to images with linear structure.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第16期4055-4058,共4页
Computer Engineering and Design
关键词
线性结构
偏微分方程
一致增强性扩散
系列图像
三维数据
信噪比
linear structure
partial differential equation
coherence enhancing diffusion
serial images
three dimensions data
signal to noise ratio
