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1)  Powell optimal method
Powell优化法
2)  Powell optimization method
Powell优化方法
3)  Powell's optimizing method
Powell最优化算法
4)  Powell optimization
Powell优化
1.
We present a methodology for alignment of X-Ray image and CT image,based on Chamfer 3-4 distance transform and Powell optimization algorithm.
在本文中 ,我们提出了一种基于Chamfer3 4距离变换和Powell优化的方法 ,用于X射线图像和CT图像间的配准 。
5)  Powell optimization algorithm
Powell寻优算法
1.
In this paper, CT/PET multimodality medical image registration is performed by a region similarity measure(RSM), accompanied with an improved segment method and Powell optimization algorithm.
结合Powell寻优算法实现了CT/PET多模医学图像配准。
6)  POWELL method
POWELL法
1.
The powell method is a very effictive method to solve nonrestraint optimization problem.
Powell法历经多次修改,现公认为是解无约束优化的一种十分有效的直接法,应用及其广泛,该文将现行Powell直接法中作了进—步改进,其运算量较一般性改进方法有较大程度的降低。
2.
Based on the framework of parallel genetic algorithm(PGA),a parallel genetic-Powell-ant colony hybrid algorithm(PGPAHA) is given,in which the migration moment of sub-populations is decided according to their convergence rate,and Powell method is taken as one of operator of PGA to accelerate their convergence rate at the la.
该算法以并行遗传算法为基本框架,根据各子群体收敛速率的快慢来决定它们之间迁移的时机,在收敛后期加入Powell法作为并行遗传算法的算子来加快收敛速度,并利用蚁群优化算法提高计算的精度。
3.
Features of chaos and its applications to optimization are analyzed, and a mixed chaos optimization combining Powell method is found.
对混沌的特性及其优化应用进行了分析,建立了混沌结合传统Powell法的混合算法。
补充资料:Powell’s method Powell
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性质:法是在无约束优化算法之一,首先选取一组共轭方向,从某个初始点出发,求目标函数在这些方向上的极小值点,然后以该点为新的出发点,重复这一过程直到获得满意解,其优点是不必计算目标函数的梯度就可以在有限步内找到极值点。

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