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High-Accuracy Age-Range Prediction of Bamboo Using Deep Fusion of Laser-Induced Breakdown Spectroscopy Spectral Data.

Sheng Kang1, Yiwei Qin1, Ting Luo2

  • 1School of Design and Art, Shaoyang University, Shaoyang, Hunan, China.

Applied Spectroscopy
|January 20, 2026
PubMed
Summary

Laser-induced breakdown spectroscopy (LIBS) combined with data fusion accurately identifies bamboo age ranges. This advanced technique achieved 99.9% accuracy, preserving bamboo craftsmanship heritage.

Keywords:
Bamboo craftsLIBSclassification accuracycultural heritagelaser-induced breakdown spectroscopyproduct qualityspectral data fusion

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Area of Science:

  • Materials Science
  • Spectroscopy
  • Cultural Heritage Preservation

Background:

  • Bamboo craftsmanship holds significant aesthetic and cultural value.
  • Accurate classification of bamboo age is crucial for heritage preservation and quality control.
  • Environmental factors cause substantial variations in bamboo surface characteristics, complicating age identification.

Purpose of the Study:

  • To develop a novel method for enhancing the accuracy of bamboo age range identification.
  • To investigate the effectiveness of laser-induced breakdown spectroscopy (LIBS) combined with spectral data fusion for this purpose.
  • To minimize the influence of regional variations in bamboo by fusing spectral data from different parts.

Main Methods:

  • Collected LIBS spectra from internal and external surfaces of 50 bamboo craftsmanship samples across five age ranges.
  • Employed peak selection-linear discriminant analysis (LDA) for initial classification.
  • Applied various data fusion techniques, including the Concat method, to enhance spectral data representation.

Main Results:

  • The peak selection-LDA model achieved 99.0% classification accuracy before data fusion.
  • Spectral data fusion further improved the classification accuracy to an exceptional 99.9%.
  • The Concat data fusion method demonstrated superior compatibility with LIBS spectra and classification models.

Conclusions:

  • The integration of LIBS and data fusion is a highly effective strategy for precise bamboo age identification.
  • This approach overcomes challenges posed by natural variations in bamboo.
  • The findings contribute to the scientific understanding and preservation of bamboo craftsmanship.