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Spectrum matching method and system based on full-wave band feature enhancement

A spectrum matching and feature enhancement technology, applied in the field of hyperspectral data processing and application, can solve the problems of low recognition accuracy and algorithm efficiency, achieve diagnostic feature enhancement and redundant information suppression, reduce the amount of repeated calculation, and improve the recognition accuracy. Effect

Inactive Publication Date: 2017-09-05
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the purpose of the present invention is to provide a spectral matching method and system based on full-band feature enhancement, thereby solving the problem of low recognition accuracy and algorithmic efficiency of the existing spectral matching method question

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  • Spectrum matching method and system based on full-wave band feature enhancement
  • Spectrum matching method and system based on full-wave band feature enhancement
  • Spectrum matching method and system based on full-wave band feature enhancement

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0035]Full-band spectra usually contain diagnostic features and redundant information of the target to be detected. The traditional spectral enhancement technology uses the de-enveloping method to extract spectral absorption features, and has not seen feature enhancement using spectral fluctuations.

[0036] The invention provides a spectral matching method based on full-band feature enhancemen...

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Abstract

The invention discloses a spectrum matching method and system based on full-wave band feature enhancement. The spectrum matching method comprises the following steps: acquiring a reflection spectrum of a sample by using a high-spectrum technology; calculating a reflectivity variance in a segment of spectrum range; defining the reflectivity variance as fluctuation intensity; building a fluctuation spectrum; calculating a similar distance of the fluctuation spectrum to realize spectrum matching. By adopting the method, spectrum fluctuation is analyzed on a wavelength dimension, transformation from the reflection spectrum to the fluctuation spectrum is built, a spectrum diagnosis feature is extracted and amplified, spectrum redundancy information is restrained, the spectrum separability is further enhanced, and the performance of a spectrum matching algorithm is improved effectively. By adopting a high-spectrum feature enhancement technology based on spectrum fluctuation, a high-spectrum imaging technology is further improved on recognition of ground objects, particularly minerals with absorbing-reflecting features.

Description

technical field [0001] The invention belongs to the technical field of hyperspectral data processing and application, and more specifically relates to a spectral matching method and system based on full-band feature enhancement, which is especially suitable for high-precision matching of rock and mineral hyperspectral. Background technique [0002] Hyperspectral means that the spectral resolution is on the order of delta_lambda / lambda=0.01mm. Hyperspectral imaging technology combines imaging technology and spectral technology to obtain three-dimensional data of detection targets. With the help of data processing technology, the three-dimensional data is analyzed to obtain the spatial information and spectral information of the target, so as to realize the qualitative and quantitative analysis of the target, and further improve the ability of human information acquisition and analysis. [0003] Hyperspectral data processing is a very critical part of its analysis and research...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/552
CPCG01N21/552
Inventor 郭连波俞晗月余云新马世祥褚燕武马浴阳熊伟李祥友曾晓雁
Owner HUAZHONG UNIV OF SCI & TECH
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