Terahertz Imaging for Paper Handling of Legacy Documents

Sensors

Alexandre Locquet¹  David S. Citrin¹  Min Zhai¹ 

[1] Georgia Tech-CNRS IRL2958, Georgia Tech Lorraine, 2 Rue Marconi, 57070 Metz, France;

关键词: terahertz spectroscopy;    terahertz nondestructive evaluation;    terahertz imaging;    terahertz dielectric properties;    paper handling;   

DOI  :  10.3390/s21206756

来源: DOAJ

【 摘 要 】

Despite predictions of the paperless office, global demand for printing and writing paper remains strong, and paper appears to be here to stay for some time. Not only firms, but also governments, libraries, and archives are in possession of large collections of legacy documents that still must be sorted and scanned. In this study, terahertz-based techniques are demonstrated to address several routine tasks related to the automated paper handling of unsorted legacy documents. Specifically, we demonstrate terahertz-based counting of the number of sheets in unconsolidated paper stacks, as well as locating stapled documents buried in paper stacks.

【 授权许可】

Unknown