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Show-through removal for scanned images using non-linear NMF with adaptive smoothing

Liu, Q and Wang, W (2013) Show-through removal for scanned images using non-linear NMF with adaptive smoothing

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Abstract

Scans of double-sided documents often suffer from show-through distortions, where contents of the reverse side (verso) may appear in the front-side page (recto). Several algorithms employed for show-through removal from the scanned images, are based on linear mixing models, including blind source separation (BSS), non-negative matrix factorization (NMF), and adaptive filtering. However, a recent study shows that a non-linear model may provide better performance for resolving the overlapping front-reverse contents, especially in grayscale scans. In this paper, we propose a new non-linear NMF algorithm based on projected gradient adaptation. An adaptive filtering process is also incorporated to further eliminate the blurring effect caused by non-perfect calibration of the scans. Our numerical tests show that the proposed algorithm offers better results than the baseline methods. © 2013 IEEE.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Authors :
AuthorsEmailORCID
Liu, QUNSPECIFIEDUNSPECIFIED
Wang, WUNSPECIFIEDUNSPECIFIED
Date : 2013
Identification Number : https://doi.org/10.1109/ChinaSIP.2013.6625422
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 13:12
Last Modified : 28 Mar 2017 13:12
URI: http://epubs.surrey.ac.uk/id/eprint/806080

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