Title
Converting a Common Low-Cost Document Scanner into a Multispectral Scanner.
Abstract
Forged documents and counterfeit currency can be better detected with multispectral imaging in multiple color channels instead of the usual red, green and blue. However, multispectral cameras/scanners are expensive. We propose the construction of a low cost scanner designed to capture multispectral images of documents. A standard sheet-feed scanner was modified by disconnecting its internal light source and connecting an external multispectral light source comprising of narrow band light emitting diodes (LED). A document was scanned by illuminating the scanner light guide successively with different LEDs and capturing a scan of the document. The system costs less than a hundred dollars and is portable. It can potentially be used for applications in verification of questioned documents, checks, receipts and bank notes.
Year
DOI
Venue
2019
10.3390/s19143199
SENSORS
Keywords
Field
DocType
multispectral imaging,document scanning,portable sensor
Computer vision,Multispectral Scanner,Multispectral image,Electronic engineering,Scanner,Artificial intelligence,Engineering,Light-emitting diode,Narrow band,Counterfeit,Light source,Channel (digital image)
Journal
Volume
Issue
Citations 
19
14
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Zohaib Khan1455.56
Faisal Shafait2124.26
Ajmal Mian3587.53