Complex Frequency Shift Method for Subband Coding of Images

N’ie Mei-sheng

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Complex Frequency Shift Method for Subband Coding of Images

更新时间：2025-12-08

- Complex Frequency Shift Method for Subband Coding of Images
- Acta Electronica Sinica Issue 5, Pages: 33-39(1989)
- 作者机构：
  
  1. 上海铁道学院
  2. 北方交通大学
  3. 上海铁道学院北方交通大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1989
- 稿件说明：
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[1]聂美声,袁保宗.复频移图像子带编码[J].电子学报,1989(05):33-39.

N’ie Mei-sheng. Complex Frequency Shift Method for Subband Coding of Images[J]. Acta Electronica Sinica, 1989, (5): 33-39.
[1]聂美声,袁保宗.复频移图像子带编码[J].电子学报,1989(05):33-39. DOI：

N’ie Mei-sheng. Complex Frequency Shift Method for Subband Coding of Images[J]. Acta Electronica Sinica, 1989, (5): 33-39. DOI：

摘要

本文提出了复频移（CFS）法实现图象子带编码的新方案

并在理论和实验两方面证明了CFS法图像子带编码的可行性和优越性。在用计算机模拟实现CFS法和QMF’S图像子带编码的基础上

比较两种方案的结果

CFS法所获得的重建图象质量更加优良。而且这种方法不需QMF方法中的FFT型变换

运算结构简单

运算速度高

易于硬件实现。

Abstract

This paper systematieally introduees a complex frequency shift （CFS） theory and its realization for subband coding of images. Subband coding of images is a new field of high quality compression coding. Two-dimensional quadrature mirror filters （QMF） can be used to split images into subbands

but its arithmatic structure is rather complex. This paper develops CFS

a new method for subband cobing of images

and proves CFS’s feasibility and advantages theoretically and experementally. By comparison

the quality of reconstructed images by CFS is higher and its arithmatic structure is simpler

without the need of FFT type transformations as in QMF. This brings the CFS’s filters to have the same modules and operate quickly

and be convenient to hardware realization.

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