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dc.creatorSáfadi, Thelma-
dc.date.accessioned2023-01-12T13:55:38Z-
dc.date.available2023-01-12T13:55:38Z-
dc.date.issued2022-03-04-
dc.identifier.citationSÁFADI, T. Detection of cancer in animal tissues: a wavelet approach. Brazilian Journal of Biometrics, Lavras, v. 40, n. 1, p.120-137, 2022. DOI: 10.28951/bjb.v40i1.557.pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/55773-
dc.description.abstractConsidering that the biospeckle laser is a dynamic interferometric phenomenon adopted as a tool to monitor changes in biological samples and that the temporal variation of speckle pattern depend on the activity level of the sample surface illuminated, this work proposes to analyse the time-varying scale-mixing matrix. Using two-dimensional scale-mixing wavelet transform several descriptive summaries varying on time are derived. These descriptors are signature of image regularity and fractality useful in tissue classification. In this work we propose to verify the behavior of the energy-flux between the scales, considering a set of 128 images to classifying cancer areas in images of an anaplastic mammary carcinoma in a female canine and in images of skin cancer in a cat obtained over time. The time-varying spectral slopes applied in the analysis of dissimilarities of tissues allowed to note that healthy area descriptors have lower values than cancer area descriptors, resulting in higher Hurst exponents. By using scaling properties of tissue images, we have captured information contained in the background tissue of images which is not utilized when only considering traditional morphological analysis.pt_BR
dc.languageen_USpt_BR
dc.publisherUniversidade Federal de Lavras (UFLA)pt_BR
dc.rightsAttribution 4.0 International*
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceBrazilian Journal of Biometrics (BJB)pt_BR
dc.subjectAnimal carcinoma tissuespt_BR
dc.subjectHurst exponentpt_BR
dc.subjectImage analysispt_BR
dc.subjectMultiscale analysispt_BR
dc.subjectNon-decimated wavelet transformpt_BR
dc.titleDetection of cancer in animal tissues: a wavelet approachpt_BR
dc.typeArtigopt_BR
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