Calibration transfer of near-infrared spectra based on compression of wavelet coefficients

被引：56

作者：

Yoon, JG

Lee, BW

Han, CH

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, Kyungbuk, South Korea

[2] Pohang Univ Sci & Technol, Ctr Automat Res, Pohang 790784, Kyungbuk, South Korea

来源：

CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS | 2002年 / 64卷 / 01期

关键词：

near-infrared spectra; calibration transfer; wavelet transform; data compression; partial least square;

D O I：

10.1016/S0169-7439(02)00042-4

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Near-infrared (NIR) spectrometers are widely used as online analyzers. We propose a transfer algorithm of a calibration model for the near-infrared spectrometer. The method, which is based on direct standardization in the compressed wavelet domain, is called WTDS. Calibration transfer in the compressed wavelet domain permits a reduction in processing time for the analysis of large spectral data sets. A calibration transfer based on a compression of wavelet coefficients offers increased robustness against testing errors, with no significant loss of performance, We select the proper set of wavelet coefficients based on the hard thresholding approach, The WTDS shows an improvement in calibration transfer performance, although wavelet coefficients are compressed. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：1 / 14

页数：14

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