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dc.contributor.authorBal, Ufuk
dc.date.accessioned2020-11-20T16:21:24Z
dc.date.available2020-11-20T16:21:24Z
dc.date.issued2012
dc.identifier.issn2156-7085
dc.identifier.urihttps://doi.org/10.1364/BOE.3.003231
dc.identifier.urihttps://hdl.handle.net/20.500.12809/4027
dc.descriptionBal, Ufuk/0000-0003-0345-6989en_US
dc.descriptionWOS: 000312709500017en_US
dc.descriptionPubMed ID: 23243573en_US
dc.description.abstractPhoton shot noise is the main noise source of optical microscopy images and can be modeled by a Poisson process. Several discrete wavelet transform based methods have been proposed in the literature for denoising images corrupted by Poisson noise. However, the discrete wavelet transform (DWT) has disadvantages such as shift variance, aliasing, and lack of directional selectivity. To overcome these problems, a dual tree complex wavelet transform is used in our proposed denoising algorithm. Our denoising algorithm is based on the assumption that for the Poisson noise case threshold values for wavelet coefficients can be estimated from the approximation coefficients. Our proposed method was compared with one of the state of the art denoising algorithms. Better results were obtained by using the proposed algorithm in terms of image quality metrics. Furthermore, the contrast enhancement effect of the proposed method on collagen fiber images is examined. Our method allows fast and efficient enhancement of images obtained under low light intensity conditions. (C) 2012 Optical Society of Americaen_US
dc.item-language.isoengen_US
dc.publisherOptical Soc Ameren_US
dc.item-rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectOptical microscopyen_US
dc.titleDual tree complex wavelet transform based denoising of optical microscopy imagesen_US
dc.item-typearticleen_US
dc.contributor.departmentMÜ, Mühendislik Fakültesi, Elektrik Elektronik Mühendisliği Bölümüen_US
dc.contributor.institutionauthorBal, Ufuk
dc.identifier.doi10.1364/BOE.3.003231
dc.identifier.volume3en_US
dc.identifier.issue12en_US
dc.identifier.startpage3231en_US
dc.identifier.endpage3239en_US
dc.relation.journalBiomedical Optics Expressen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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