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一种低复杂度的基于进化策略的自适应运动估计方法

DOI: 10.11834/jig.200507168

Keywords: 运动估计,相关变异,进化策略,1/5规则

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Abstract:

为了进一步提高编码质量并能快速编码,提出了一种新的基于进化策略的自适应运动估计算法。鉴于在进化策略中变异操作与正态分布法则对应,是核心算子,为此将进化策略应用于运动估计,提出了一种新的自适应运动估计算法,并第1次将运动方向信息作为变量引入运动估计算法,同时改进了步长自适应控制机制,以便进一步提高算法的收敛速率,同时采用种群规模的自适应控制,降低了算法的复杂度。试验结果表明,该算法的性能与全搜索算法相近,而复杂度略大于三步法。由于其具有低复杂度和进化算法的内在并行性的特点,故该算法适合硬件实现。

References

[1]  Li Shen, Xu Wei-Pu, et al. A novel fast motion estimation method based on genetic algorithm [ A ]. In: Proceeding of IEEE International Conference on Image Processing[ C ]. Kobe Japan, 1999,1: 66 ~ 69.
[2]  Schwefel H P. Evolution and optimum seeking [ M ]. New York:Wiley&Sons, 1995.
[3]  Wang Hui, Mao Zhi-Gang. An adaptive motion estimation algorithm based on evolution strategies [ A ]. International Conference on Acoustics, Speech, and Signal Processing [ C ], Montreal Canada,2004,3:353 ~356.
[4]  Nikolaus Hansen, et al. Sizing the population with respect to the local progress in ( 1, λ ) -evolution strategies-A theoretical analysis [ A ].In: IEEE International Conference on Evolutionary Computation Proceedings[ C ] , Perth, Australia, 1995: 80 ~ 85.
[5]  Lin Chun-Hung, Wu Ja-Ling. A lightweight genetic block-matching algorithm for video coding[ J]. IEEE Transactions, Circuits System.Video Technology, 1998,8(4): 386 ~ 392.
[6]  Xu YueLei, Bi Duyan, Mao Baixin. A genetic search algorithm for motion estimation[ A ]. In: Proceeding of International Conference on Signal Processing[ C ], BeiJing, China, 2000,2: 1058 ~ 1061.
[7]  Beyer H G. Toward a theory of evolution strategies: Self-adaptation [ J ]. Evolutionary Computation, 1996,3 (3): 311 ~ 347.

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