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- W2041136905 abstract "摘要: 对互信息配准法进行算法改进. 在互信息基础上结合形态学梯度作为新的图像配准测度, 不仅考虑所有体素信息, 而且有效结合像素在空间位置的相互关系. 将粒子群优化 (Particle swarm optimization, PSO) 算法这种全局寻优算法和 Powell 这一局部寻优算法相结合, 前者的配准结果为后者的算法优化提供了非常有效的初始点, 优化时间大为减少. 借鉴小波变换中多分辨率的思想, 在低分辨率图像中粗略配准后, 上升到高分辨率图像上进一步细化配准结果, 增加算法鲁棒性. 实验结果证明, 本文算法效果良好, 寻优过程在数分钟内完成, 能够满足诊断和科研的实时性要求. 关键词: 图像配准 / 互信息 / 多分辨率数据结构 / 粒子群优化算法 / Powell算法" @default.
- W2041136905 created "2016-06-24" @default.
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- W2041136905 date "2009-03-02" @default.
- W2041136905 modified "2023-09-26" @default.
- W2041136905 title "A Novel Image Registration Method Combining Morphological Gradient Mutual Information with Multiresolution Optimizer" @default.
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- W2041136905 doi "https://doi.org/10.3724/sp.j.1004.2008.00246" @default.
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