An improved motion estimation of medical image series via wavelet transform.
- Author:
Ying ZHANG
1
;
Nini RAO
;
Gang WANG
Author Information
1. School of Life Science and Technology, UEST of China, Chengdu 610054, China.
- Publication Type:Journal Article
- MeSH:
Algorithms;
Angiography, Digital Subtraction;
Data Compression;
methods;
Fourier Analysis
- From:
Journal of Biomedical Engineering
2006;23(5):968-973
- CountryChina
- Language:Chinese
-
Abstract:
The compression of medical image series is very important in telemedicine. The motion estimation plays a key role in the video sequence compression. In this paper, an improved square-diamond search (SDS) algorithm is proposed for the motion estimation of medical image series. The improved SDS algorithm reduces the number of the searched points. This improved SDS algorithm is used in wavelet transformation field to estimate the motion of medical image series. A simulation experiment for digital subtraction angiography (DSA) is made. The experiment results show that the algorithm accuracy is higher than that of other algorithms in the motion estimation of medical image series.
