基于提升方法的整数小波在DSP上的实现

王丽荣; 申铉国; 王延杰

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基于提升方法的整数小波在DSP上的实现

信息科学 | 更新时间：2020-08-12

- 基于提升方法的整数小波在DSP上的实现
- Implementation of integer wavelet transform basedon lifting scheme on DSP
- 光学精密工程 2004年12卷第2期页码：185-189
- 作者机构：
  
  1. 中国科学院, 长春光学精密机械与物理研究所,吉林长春,130033
  2. 吉林大学通信工程学院,吉林长春,130025
  3. 长春大学电子信息工程学院,吉林长春,130022
- 作者简介：
- 基金信息：
  
  空军重点科研项目(GJ-360)()
- DOI：
  中图分类号： TP391.4
- 收稿日期：2003-12-16，
  
  修回日期：2004-02-15，
  
  网络出版日期：2004-04-15，
  
  纸质出版日期：2004-04-15
- 稿件说明：
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王丽荣, 申铉国, 王延杰. 基于提升方法的整数小波在DSP上的实现[J]. 光学精密工程, 2004,(2): 185-189

WANG Li-rong, SHEN Xuan-guo, WANG Yan-jie. Implementation of integer wavelet transform basedon lifting scheme on DSP[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 185-189
王丽荣, 申铉国, 王延杰. 基于提升方法的整数小波在DSP上的实现[J]. 光学精密工程, 2004,(2): 185-189 DOI：

WANG Li-rong, SHEN Xuan-guo, WANG Yan-jie. Implementation of integer wavelet transform basedon lifting scheme on DSP[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 185-189 DOI：

摘要

在理论上探讨了基于提升框架的整数小波变换(IWT)及其硬件实现问题

并在TI公司的TMS320C6000DSP上实现了图像处理中两种常用滤波器LEGall(5

Sweldens(13

7)提升结构的整数小波变换

同时在DSP上对上述滤波器实现了滤波器组(FBS)方法的离散小波变换(DWT).将提升方法的IWT同FBS方法的DWT在硬件上的运行时间作了比较.结果表明

IWT的运行速度比DWT的运行速度快.本结果可用于评价DSP在图像编码中的运行情况

也可估计出采用此种算法每秒能处理的图像数目.理论和实验均表明

基于提升方法的整数小波变换是一种运行速度快

易于硬件实现

并能实现图像无损压缩的算法.

Abstract

Integer wavelet transform based on lifting scheme and its implementation on hardware are discussed in theory

and IWT of filters LEGall(5

3)and Sweldens(13

7)usually used in image coding are implemented on TI TMS320c6000DSP

and then the discrete wavelet transform based on filter bank scheme is implemented on DSP. The comparison of IWT with DWT in hardware operating time shows that IWT is always faster than DWT. The results reported on the graphs can be used to estimate the number of images processed by these algorithms per second and to assess the performance of DSP in fulfilling image coding tasks. So the IWT based on lifting scheme is an algorithm with higher execution speed and it is easier to implement on hardware

and it can be used to achieve compression of image without loss.

关键词

Keywords

references

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