Terahertz Imaging for Paper Handling of Legacy Documents
Min Zhai, Alexandre Locquet, D. S. Citrin
Abstract
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.
Topics & Concepts
Terahertz radiationLegacy systemPossession (linguistics)Computer scienceWorld Wide WebData scienceOperating systemMaterials scienceSoftwareOptoelectronicsPhilosophyLinguisticsTerahertz technology and applicationsPhotonic Crystals and ApplicationsRandom lasers and scattering media