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dc.contributor.authorKazakeviciute, A-
dc.contributor.authorHo, CJH-
dc.contributor.authorOlivo, M-
dc.identifier.citationIEEE Transactions on Medical Imaging, 2016, 35 (9), pp. 2151 - 2163en_US
dc.description.abstractThe aim of this study is to solve a problem of denoising and artifact removal from in vivo multispectral photoacoustic imaging when the level of noise is not known a priori. The study analyzes Wiener filtering in Fourier domain when a family of anisotropic shape filters is considered. The unknown noise and signal power spectral densities are estimated using spectral information of images and the autoregressive of the power 1 (AR(1) model. Edge preservation is achieved by detecting image edges in the original and the denoised image and superimposing a weighted contribution of the two edge images to the resulting denoised image. The method is tested on multispectral photoacoustic images from simulations, a tissue-mimicking phantom, as well as in vivo imaging of the mouse, with its performance compared against that of the standard Wiener filtering in Fourier domain. The results reveal better denoising and fine details preservation capabilities of the proposed method when compared to that of the standard Wiener filtering in Fourier domain, suggesting that this could be a useful denoising technique for other multispectral photoacoustic studies.en_US
dc.format.extent2151 - 2163-
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.rights© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.-
dc.subjectPhotoacoustic imagingen_US
dc.subjectartifact removalen_US
dc.subjectWiener filteringen_US
dc.subjectFourier domainen_US
dc.subjectPSD estimationen_US
dc.titleMultispectral Photoacoustic Imaging Artifact Removal and Denoising Using Time Series Model-Based Spectral Noise Estimationen_US
dc.relation.isPartOfIEEE Transactions on Medical Imaging-
Appears in Collections:Dept of Mathematics Research Papers

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