关键词: 脑MR图像, 图像配准, 小波, 优化算法, 混合

Abstract: Optimization algorithm is important part of brain MRI registration method. According to the current optimization algorithms, this paper proposes one kind of wavelet hybrid optimization algorithm for brain MRI registration. This algorithm adopts wavelet decomposition to obtain low resolution image, and searches the transform parameters based on it. After that, based on the obtained transform parameters, the algorithm adopts Powell algorithm to continue searching and obtain the final transform parameters. The experimental results show that this algorithm can obtain lower time cost, higher optimization precision and higher optimization stability compared to some current popular optimization algorithms.

Key words: brain MRI, image registration, wavelet, optimization algorithm, hybrid