摘要
在对信号阈值分解基础上 ,利用结构化方法结合最优估计理论 ,对最优结构元约束层叠滤波器进行建模和分析 ,证明了最优结构元约束层叠滤波器实质是一类由多个极大 /极小滤波单元组成的多级秩排序滤波器 ,并给出基于层叠处理操作和多级秩排序操作的滤波器实现结构 .最后 ,结合图像处理应用实例 ,与其它传统多级秩排序滤波器进行了比较 。
Based on threshold decomposition,combined structural method and optimal estimate theory,optimal stack filter model with structural elements constrains is established and analyzed.It′s proved that optimal stack filter with structural elements constrains is a class of multi level rank order filter only including Max and Min operations.And two kinds of algorithm structures based on stack processing operation and multi level rank order operation are proposed.At last,the kind of optimal filter′s performance is compared with other traditional multi level rank order filters in image processing experiments,and its effectiveness is proven.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2000年第2期7-10,共4页
Acta Electronica Sinica
基金
国家自然科学基金!(No.6 9772 0 4 4)
关键词
层叠滤波器
结构元约束
最优估计
rank order filter
stack filter
structural elements constraints
threshold decomposition
