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基于人类视觉系统的各向异性扩散图像平滑方法 被引量:20

An Anisotropic Diffusion Image Smoothing Method Based on Human Visual System
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摘要 本文首先分析了图像处理领域中现存各向异性扩散技术所面临的一些问题 ,然后根据人类视觉系统的一些特性提出了一个改进的各向异性扩散方法 .由于该方法充分利用了可见度函数所提供的信息 ,它不仅避免了Per ona Malik以及You Kaveh方案中对参数选择的困难 ,而且也克服了Catte方案对观察图像进行预平滑的过程中所面临的问题 .实验结果表明 ,在图像平滑的过程中 ,该方法在噪声消除和边缘保留方面能获得较好的效果 . In this paper,we first discuss some problems that exist presently in some anisotropic diffusion schemes for image processing,then propose an improved anisotropic diffusion method based on the characteristic of human visual system.Owing to making use of the information offered by the visibility function,this method not only avoids the difficulties in choosing parameter in the Perona-Malik and You-Kaveh schemes,but also overcomes the presmoothing problems in the Catte's scheme.The experiment results show that this method is able to achieve a good effect in the respect of noise removal and edge preservation during the process of image smoothing.
出处 《电子学报》 EI CAS CSCD 北大核心 2004年第1期17-20,共4页 Acta Electronica Sinica
基金 教育部跨世纪优秀人才基金 (No .教技函 [2 0 0 2 ] 4 8) 国家自然科学基金 (No .69972 0 1 6) 广东省自然科学重点基金 (No .990 892)
关键词 各向异性扩散 图像平滑 人类视觉系统 anisotropic diffusion image smoothing human visual system
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参考文献10

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