高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (10): 1537.

• 论文 • 上一篇    下一篇

红外光谱数据的小波压缩和重建

王洪, 司圣柱, 熊建辉, 张懋森   

  1. 中国科学技术大学化学物理系, 合肥, 230026
  • 收稿日期:1995-09-25 出版日期:1996-10-24 发布日期:1996-10-24
  • 通讯作者: 张懋森
  • 作者简介:王洪,男,26岁,博士研究生.
  • 基金资助:

    国家自然科学基金

The Compression and Reconstruction of IR Spectra by Wavelet Transform

WANG Hong, SI Sheng-Zhu, XIONG Jian-Hui, ZHANG Mao-Sen   

  1. Dept.of Chem. Physics, University of Science & Technology of China, Hefei, 230026
  • Received:1995-09-25 Online:1996-10-24 Published:1996-10-24

摘要: 介绍了小波变换及多分辨分析理论,并利用Daubechies的正交紧支集小波基和Mallat算法实现了对红外光谱数据的压缩和重建。计算表明,即使对原始数据压缩5倍,仍能很好地重建原有图谱,重建光谱数据与原始光谱数据之间的均方差为0.260,这为光谱数据的存储、检索和处理带来了方便。

关键词: 小波变换, 多分辨分析, 红外光谱, 数据压缩

Abstract: An introduction of wavelet transform and multiresolution analysis is presented.The IRspectra of polyethylene are compressed and reconstructed successfully by Daubechies'compactly supported orthogonal wavelet bases and Mallat's algorithm.The IRspectra can be reconstructed satisfactorily even though the original data are compressed 5 times,and the mean variance is 0.260.This makes the storage,index and processing of IRspectra more conveninet.

Key words: Wavelet transform, Multiresolution analysis, IR spectra, Data compression

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