Medical Image Coding Based on Lifting Wavelets Transform and SPIHT
10.3969/j.issn.1005-202X.2010.02.014
- VernacularTitle:基于提升小波变换和SPIHT的医学图像编码算法
- Author:
Xiaowen XU
;
Wei WANG
- Publication Type:Journal Article
- Keywords:
lifting wavelets transform;
SPIHT;
medical image coding
- From:
Chinese Journal of Medical Physics
2010;27(2):1755-1757,1780
- CountryChina
- Language:Chinese
-
Abstract:
Objective:It proposed a new arithmetic of medical image coding based on the lifting scheme wavelets and the set partitioning in hierarchical trees. Methods: Due to the computational complexity of the traditional wavelet, the lifting scheme, which could speed up the fast wavelet transform, was adopted instead of the traditional wavelet transform. With the comprehensive utilization of SPIHT and arithmetic coding, it could achieve to code medical images. Results: At a range of compression ratio, the peak signal to noise ratio was markedly improved, and it could ensure the quality of the reconstruction of medical image to meet the medical image data storage and transmission needs. Conclusions: The simulation experiments show that at the same bit rate, the peak signal to noise ratio is markedly improved.
