Retrospective shading correction algorithm based on signal envelope estimation

Reyes-Aldasoro, Constantino C (2009) Retrospective shading correction algorithm based on signal envelope estimation. Electronics Letters, 45 (9). pp. 454-456. ISSN 0013-5194

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Abstract

An additive retrospective non-parametric algorithm for the correction of the inhomogeneous intensity background of images, commonly known as shading, is presented. The algorithm assumed that an original unbiased image was corrupted by slowly-varying shading that could be estimated from the signal envelope in a process analogous to amplitude modulation detection. Unlike other filtering algorithms, the algorithm did not require pre-processing, parameter setting, user interaction, computationally intensive optimisation algorithms nor a restriction in size of the objects of interest relative to the scale of background variations. The algorithm provided satisfactory results for artificial and microscopical images.

Item Type: Article
Additional Information: 448LS Times Cited:0 Cited References Count:11 This article presented a novel algorithm which can be used to correct the shading (the uneven intensity of a background) in images from different acquisition modes, such as MRI, microscopy or even traditional cameras. The algorithm is completely automatic and the computational complexity is lower than the traditional techniques based on Entropy calculations. The article has been cited 6 times in 2 years. I am the sole author of this algorithm which can be accessed through the webpage http://www.caiman.org.uk.
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Constantino Reyes Aldasoro
Date Deposited: 06 Feb 2012 21:21
Last Modified: 17 Jul 2012 09:59
URI: http://sro.sussex.ac.uk/id/eprint/30885
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