Laser & Optoelectronics Progress, Volume. 62, Issue 16, 1600001(2025)
Research Progress of Hyperspectral Imaging Technology in Document Inspection
Figures & Tables(6)
![K-Means clustered images for blue ballpoint pens[25]. (a) PCA results; (b) t-SNE results](/Images/icon/loading.gif){kind=icon}
Fig. 2. K-Means clustered images for blue ballpoint pens[25]. (a) PCA results; (b) t-SNE results
Fig. 3. Blue-black ink diffusion and spectral analysis results of The James Bay Treaty[41]. (a) Direct observation image; (b) image after band subtraction processing
Fig. 4. Application of HSI technology in the inspection of additions and alterations of documents. (a)‒(c) Graphs of the G2 and BP5 ink adding text and PCA analysis results[44]; (d)‒(f) tamper with digital photo and PCA and false color synthesis processing images[45]; (g)‒(i) MCR-ALS analysis images of the paper, horizontal and vertical drawings of the crossing[46]
Table 1. Summary of hyperspectral imaging applications in document inspection
View tableTable 1. Summary of hyperspectral imaging applications in document inspection
Research object Samples Wavelength range /nm Data Statistical method Reference Material inspection Ink 400 ‒1000 Image and spectral ‒ ［ 23 ］Ink 650‒4000 Spectral PCA， LDA， SPA ［ 51 ］Ink 700‒4000 Spectral PCA， KNN ［ 24 ］Ink 400‒850 Image and spectral FCM ［ 22 ］Ink 470‒930 Spectral PCA ［ 52 ］Ink 400‒720 Spectral MNF， PCA ［ 30 ］Ink 400‒720 Image and spectral CNN ［ 53 ］Ink 400‒720 Spectral LR ［ 54 ］Material inspection Ink 400‒720 Spectral CNN， decision tree ［ 55 ］Ink 400‒720 Spectral PCA， K-Means ［ 56 ］Ink 400‒720 Image CNN ［ 31 ］Ink 400‒720 Image and spectral K-Means ［ 29 ］Ink 400‒1000 Spectral t-SNE， PCA， K-Means ［ 25 ］Ink 400‒1000 Spectral PCA ［ 57 ］Ink 400‒720 Image GONMF-ADMM ［ 58 ］Ink 450‒950 Spectral LDA ［ 26 ］Inkjet printing ink 400‒1000 Spectral PCA， SVM ［ 59 ］Inkjet printing ink 400‒1000 Spectral UMAP， t-SNE， SVM ［ 33 ］Inkjet printing ink 500‒1000 Spectral PCA ［ 32 ］Laser printing toner 400‒1000 Spectral RF， KNN， SVM， PLS-DA ［ 34 ］Stamp 450‒950 Spectral PCA， NMF， BPNN， 1D-CNN ［ 35 ］Stamp 400‒1000 Spectral t-SNE， UMAP， MLP ［ 36 ］Paper 350‒2500 Spectral CARS， SPA， SVM， RF， KNN ［ 38 ］Paper 400‒1000 Spectral PCA， MNF ［ 60 ］Paper 450‒950 Image and spectral PCA， KNN， SVM ［ 61 ］Paper 400‒1000 Image and spectral PCA ［ 39 ］Formation time inspection Ink dispersion 420‒720 Image and spectral PCA ［ 41 ］Document aging 365 ‒1100 Image and spectral SDS ［ 42 ］Document aging 365‒1100 Spectral ‒ ［ 62 ］Addition and tamper inspection Addition 928‒2524 Spectral PCA， PLS-DA， MCR-ALS ［ 44 ］Tamper 400‒1000 Image and spectral PCA ［ 45 ］Tamper 720‒1000 Spectral PCA ［ 63 ］Crossing 928‒2524 Image and spectral PCA， PLS-DA， MCR-ALS ［ 46 ］Addition and tamper 450‒900 Image and spectral ‒ ［ 64 ］Fuzzy record inspection Ink separation 400‒1000 Image and spectral SAM， SID ［ 65 ］Faded text 1000‒2500 Image and spectral PCA ［ 66 ］Fuzzy text 400‒720 Spectral SVM ［ 49 ］Faded text 365‒1100 Image Gradient synthesis ［ 48 ］Fuzzy text 350‒1000 Image and spectral MNF ［ 67 ］Fuzzy text 420‒720 Image and spectral PCA ［ 47 ］Masked text 400‒1000 Image and spectral PCA， ICA ［ 68 ］Masked text 450‒950 Image and spectral SAM， LRA ［ 50 ］
Tools
Get Citation
Copy Citation Text
Yihan Zhou, Lan Cui, Cheng Zhang, Shuo Li, Pei Fu. Research Progress of Hyperspectral Imaging Technology in Document Inspection[J]. Laser & Optoelectronics Progress, 2025, 62(16): 1600001
Paper Information
Category: Reviews
Received: Dec. 31, 2024
Accepted: Mar. 6, 2025
Published Online: Aug. 4, 2025
The Author Email: Lan Cui (cuilan0605@126.com)
CSTR:32186.14.LOP242536
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20