Quality Enhancement of printed-and-scanned Images using distributed coding

Voloshynovskyy, Svyatoslav; Koval, Oleksiy; Deguillaume, Frédéric; Pun, Thierry

doi:10.1016/j.sigpro.2006.11.003

Scientific article

English

Quality Enhancement of printed-and-scanned Images using distributed coding

Contributors

Voloshynovskyy, Svyatoslav; Koval, Oleksiy; Deguillaume, Frédéric; Pun, Thierry

Published in

Signal processing, vol. 87, no. 6, p. 1301-1313

Publication date

2007

Abstract

In this paper we address visual communications via print-and-scan channels from an information-theoretic point of view as communications with side information that targets quality enhancement of visual data at the output of this type of channels. The solution to this problem addresses important aspects of multimedia data processing and management. A practical approach to side information communications for printed documents based on Wyner–Ziv and Gray setups is analyzed in the paper that assumes two separated communications channels where an appropriate distributed coding should be elaborated. The printing channel is considered to be a direct visual channel for images (“analog” channel with degradations). The “digital channel” is considered to be an appropriate auxiliary channel exploited to communicate the information exploited for quality enhancement of printed-and-scanned image. We demonstrate both theoretically and practically how one can benefit from this sort of “distributed paper communications”.

Keywords

Watermarking
Data-hiding
Printed-and-scanned documents
Communications with side-information
Bar codes
Distributed coding
Joint source-channel coding
Gel'fand–Pinsker problem
Wyner–Ziv coding
Gray coding
Image enhancement

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

VOLOSHYNOVSKYY, Svyatoslav et al. Quality Enhancement of printed-and-scanned Images using distributed coding. In: Signal processing, 2007, vol. 87, n° 6, p. 1301–1313. doi: 10.1016/j.sigpro.2006.11.003

Article (Published version)

Identifiers

PID : unige:47428
DOI : 10.1016/j.sigpro.2006.11.003

Additional URL for this publication

http://www.sciencedirect.com/science/article/pii/S0165168406003951?np=y

Journal ISSN

0165-1684

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03/03/2015 16:36:11

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Quality Enhancement of printed-and-scanned Images using distributed coding

Contributors

Published in

Publication date

Abstract

Keywords

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

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