基于拉普拉斯谱的医学图像配准算法

提出一种基于拉普拉斯谱的医学图像配准算法,通过将谱图理论应用到医学图像配准中并引入特征向量,以达到提高配准精确度和计算效率的目的.该算法根据医学图像的解剖特征来构造拉普拉斯矩阵,通过分析拉普拉斯矩阵的谱得到匹配关系;采用射影变换模型,计算射影矩阵;通过坐标变换和图像插值方法实现图像配准.实验结果表明,该算法与经典的最大...

Medical Image Registration Algorithm Based on Laplacian Spectrum

The medical image registration algorithm based on Laplacian spectrum algorithm is proposed. The idea of using graph theory as medical image point registration is proposed. By eigenvector, the higher registration precision and the strong ability have been achieved. The Laplacian spectrum of the anatomy feature point sets of the two images is constructed to match. The strategy uses the homogeneous matrix, coordinate transfer and the image interpolation to register. Experimental results show that it has more efficiency and higher registration precision than maximization of mutual information whenever in the single sensor or multi-sensor.