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Proceedings Paper

Data path design and image quality aspects of the next generation multifunctional printer
Author(s): M. H. H. Brassé; S. P. R. C. de Smet
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Paper Abstract

Multifunctional devices (MFDs) are increasingly used as a document hub. The MFD is used as a copier, scanner, printer, and it facilitates digital document distribution and sharing. This imposes new requirements on the design of the data path and its image processing. Various design aspects need to be taken into account, including system performance, features, image quality, and cost price. A good balance is required in order to develop a competitive MFD. A modular datapath architecture is presented that supports all the envisaged use cases. Besides copying, colour scanning is becoming an important use case of a modern MFD. The copy-path use case is described and it is shown how colour scanning can also be supported with a minimal adaptation to the architecture. The key idea is to convert the scanner data to an opponent colour space representation at the beginning of the image processing pipeline. The sub-sampling of chromatic information allows for the saving of scarce hardware resources without significant perceptual loss of quality. In particular, we have shown that functional FPGA modules from the copy application can also be used for the scan-to-file application. This makes the presented approach very cost-effective while complying with market conform image quality standards.

Paper Details

Date Published: 28 January 2008
PDF: 11 pages
Proc. SPIE 6808, Image Quality and System Performance V, 68080V (28 January 2008); doi: 10.1117/12.766794
Show Author Affiliations
M. H. H. Brassé, Océ Technologies B.V. (Netherlands)
S. P. R. C. de Smet, Océ Technologies B.V. (Netherlands)

Published in SPIE Proceedings Vol. 6808:
Image Quality and System Performance V
Susan P. Farnand; Frans Gaykema, Editor(s)

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