1 引言.................................................................................................................................1
1.1 论文背景和意义............................................................................................1
1.2 图像配准技术研究现状................................................................................2
2 图像配准综述.................................................................................................................4
2.1 图像配准理论................................................................................................4
2.2 图像配准一般步骤........................................................................................4
2.3 特征空间........................................................................................................5
2.3.1 基于灰度统计信息的配准.................................................................5
2.3.2 基于特征的配准方法.........................................................................7
2.4 搜索空间........................................................................................................8
2.5 搜索策略......................................................................................................10
2.5.1 一般 Powell 算法..............................................................................11
2.5.2 PSO 算法............................................................................................11
2.6 相似性度量..................................................................................................12
3 基于互信息的图像配准...............................................................................................14
3.1 信息熵..........................................................................................................14
3.2 互信息的定义..............................................................................................15
3.3 直方图..........................................................................................................16
3.4 联合直方图..................................................................................................16
3.5 图像互信息计算..........................................................................................18
3.6 基于最大互信息理论的图像配准..............................................................18
4 图像配准及仿真...........................................................................................................19
4.1 设计思路......................................................................................................19
4.2 空间几何变换..............................................................................................19
4.2.1 平移变换...........................................................................................20
4.2.2 旋转变换...........................................................................................21
4.3 PV 插值.........................................................................................................23
4.4 互信息值......................................................................................................24
4.5 优化搜索......................................................................................................26
4.5.1 改进的 Powell 算法..........................................................................26
4.5.2 PSO.....................................................................................................27
4.5.3 Powell 算法与 PSO 算法比较 ..........................................................28
4.6 配准效果检验..............................................................................................29
4.7 界面设计......................................................................................................30
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