摘要
提出一种基于小波变换的医学图像旋转配新方法，方法１对图像进行２－ＤＷＴ。２提取ＷＴ极大模点作为特征点。３在ＷＴ域内：从ｓ＝２＾４出发，对图像间的旋转进行粗到细胞快速套准。结果：分别 彩本文方法及传统方法进行了配准实验与结果比较。结论：本文方法具有配准精度高速度快，抗噪声能力强的优点。
This paper presents a novel approach to image registration which addresses the problem of rotation correction. Method: 1. 2-DWT of medical images. 2. Maxima of wavelet coefficients (MWC) were used as feature points. 3.Starting from 1ast level of decomposition and then iteratively for each level going up, find the best match between MWC of input image and rotated MWC of reference image. The best rotation is refined iteratively and with increasing accuracy. Results: The performance of the method was compared to that of the traditional methods and found it to be superior. Conclusions: Images can be fast registrated with high accuracy and less sensitivity to noise.
出处
《中国医疗器械杂志》
CAS
1998年第6期311-313,共3页
Chinese Journal of Medical Instrumentation
基金
浙江省自然科学基金
