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Document scanner The DSmobile600 sheet-feed portable document scanner from Brother Mobile Solutions Inc..
Source publication
We propose the construction of a prototype scanner designed to capture multispectral images of documents. A standard sheet-feed scanner is modified by disconnecting its internal light source and connecting an external multispectral light source comprising of narrow band light emitting diodes (LED). A document is scanned by illuminating the scanner...
Contexts in source publication
Context 1
... sheet-feed mechanism is therefore preferred over a flatbed construction to form the basis of a multispectral document scanner. The size of a sheet-feed scanner is mainly determined by the shorter edge of the supported page size which makes it compact and portable as shown in Figure 1. A broadband source of light (e.g., incandescent or fluorescent) reflects the average response of a scene over a wide spectral range, and therefore achieves low spectral fidelity. ...
Context 2
... order to test the multispectral document scanner, a test page was printed from an HP Laserjet Color printer. The RGB true color and various bands of a logo in the test page captured by the multispectral scanner are shown in Figure 10. The logo has red, orange, green and blue elements and the text at the bottom. ...
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