基于B样条FFD模型配准的虹膜图像融合方法

被引:3
作者
吴国瑶
马立勇
机构
[1] 哈尔滨工业大学(威海)信息学院
基金
中央高校基本科研业务费专项资金资助;
关键词
虹膜图像; B样条FFD模型; 图像配准; 图像融合;
D O I
暂无
中图分类号
TP391.41 [];
学科分类号
080203 ;
摘要
通过摄像头得到的虹膜图像的纹理通常是模糊的,不能直接用于虹膜识别。但是由于虹膜纹理会随着瞳孔的缩放发生非刚性形变,直接对虹膜图像融合无法得到良好的效果。本文采用基于B样条的FFD(free-formde-formation)模型对图像进行配准,然后用小波进行融合,为下一步的虹膜识别提供了合适的图像。通过该方法得到的融合图像直观上细节信息更多,并通过熵进行了度量。
引用
收藏
页码:24 / 27
页数:4
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