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基于不确定性信息融合的高密度椒盐噪声降噪方法 被引量:2
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作者 齐现英 刘伯强 徐建伟 《电子学报》 EI CAS CSCD 北大核心 2016年第4期878-885,共8页
为解决高密度椒盐噪声滤除与细节保护之间的矛盾,提出一种基于不确定性信息融合的中智灰滤波算法.该算法包括两个阶段:噪声检测和噪声恢复.在检测阶段,为提高噪声检测准确率,首先利用Max-Min算法进行初测,然后利用极值压缩灰色关联度... 为解决高密度椒盐噪声滤除与细节保护之间的矛盾,提出一种基于不确定性信息融合的中智灰滤波算法.该算法包括两个阶段:噪声检测和噪声恢复.在检测阶段,为提高噪声检测准确率,首先利用Max-Min算法进行初测,然后利用极值压缩灰色关联度与顺序不确定性的融合信息进行二次判断.在噪声恢复阶段,为充分利用像素本身的不确定性及邻域像素的灰色关联性,将中智不确定性和极值压缩灰色关联度的乘积作为相似性度量特征,设计了中智灰自适应权重函数.实验表明,针对不同图像,二次噪声检测方案的噪声剔除率可达0.1%-8.8%;该中智灰滤波算法在抑制椒盐噪声的同时能较好地保护图像边缘信息,特别是在高噪声(70%-90%)情况下,算法的综合性能优于现有相关算法. 展开更多
关键词 高密度椒盐噪声 二次噪声检测 中智灰自适应权重 极值压缩灰色关联度 顺序不确定性 中智理论
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Coordinated dynamic mission planning scheme for intelligent multi-agent systems
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作者 彭军 文孟飞 +2 位作者 谢国祺 张晓勇 Kuo-chi LIN 《Journal of Central South University》 SCIE EI CAS 2012年第11期3170-3179,共10页
Mission planning was thoroughly studied in the areas of multiple intelligent agent systems,such as multiple unmanned air vehicles,and multiple processor systems.However,it still faces challenges due to the system comp... Mission planning was thoroughly studied in the areas of multiple intelligent agent systems,such as multiple unmanned air vehicles,and multiple processor systems.However,it still faces challenges due to the system complexity,the execution order constraints,and the dynamic environment uncertainty.To address it,a coordinated dynamic mission planning scheme is proposed utilizing the method of the weighted AND/OR tree and the AOE-Network.In the scheme,the mission is decomposed into a time-constraint weighted AND/OR tree,which is converted into an AOE-Network for mission planning.Then,a dynamic planning algorithm is designed which uses task subcontracting and dynamic re-decomposition to coordinate conflicts.The scheme can reduce the task complexity and its execution time by implementing real-time dynamic re-planning.The simulation proves the effectiveness of this approach. 展开更多
关键词 weighted AND/OR tree multiple intelligent agent coordinated dynamic mission planning AOE-NETWORK
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