DOI: 10.1039/d6an00923a ISSN: 0003-2654

Non-destructive discrimination of black gel pen inks via physics-guided band-gate attention network and hyperspectral imaging

Qian Qian, Yan Li, Xinri Zhang, Xinrui Xie, Lu Yin

The non-destructive identification of black gel pen inks and writing-to-alteration intervals is important in forensic ink analysis, particularly for legal and financial documents.

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