| 免疫粒子群核模糊聚类快速分形图像编码 |
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| 引用本文： | 吴一全,孙子翼.免疫粒子群核模糊聚类快速分形图像编码[J].北京邮电大学学报,2011,34(1):69-74. |
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| 作者姓名： | 吴一全 孙子翼 |
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| 作者单位： | 南京航空航天大学,信息科学与技术学院,南京,210016;南京航空航天大学,信息科学与技术学院,南京,210016 |
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| 基金项目： | 国家自然科学基金项目(60872065) |
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| 摘 要： | 针对经典分形编码算法编码时间过长和基于K-均值聚类等快速分形编码算法依赖数据分布等问题,提出了一种基于免疫粒子群优化(IPSO)和核模糊聚类的快速分形图像编码算法.提出基于IPSO的核模糊聚类算法,将IPSO算法应用于聚类中心的求解中,并将其应用于分形图像编码,分别对子块和父块进行核模糊聚类,以更加合理的分类搜索取代全局搜索,减少编码时间.实验结果表明,新算法的编码时间约为经典分形编码算法的1/6,其峰值信噪比只略微下降;与基于K-均值聚类和基于粒子群优化聚类等快速分形图像编码算法相比,新算法能以更少的编码时间获得更高的峰值信噪比.
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| 关 键 词： | 图像编码 快速分形编码 核模糊聚类 免疫粒子群优化 |
| 收稿时间： | 2010-04-14 |
| 修稿时间： | 2010-09-12 |
Fast Fractal Image Coding Based on Immunity Particle Swarm Optimization and Fuzzy Kernel Clustering |
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| WU Yi-quan,SUN Zi-yi.Fast Fractal Image Coding Based on Immunity Particle Swarm Optimization and Fuzzy Kernel Clustering[J].Journal of Beijing University of Posts and Telecommunications,2011,34(1):69-74. |
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| Authors: | WU Yi-quan SUN Zi-yi |
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| Affiliation: | WU Yi-quan,SUN Zi-yi(School of Information Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Aiming at the lengthy of classical fractal coding algorithm and the problem of fast fractal image coding algorithm based on such as K-means clustering,a fast fractal image coding algorithm based on immunity particle swarm optimization(IPSO)and fuzzy kernel clustering is proposed.Firstly,an algorithm of fuzzy kernel clustering based on IPSO is presented.The IPSO algorithm is used to calculate the cluster centers.Then the proposed algorithm of fuzzy kernel clustering based on IPSO is applied to fractal image ... |
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| Keywords: | image coding fast fractal coding fuzzy kernel clustering immunity particle swarm optimization |
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