Silva, Romuere Rodrigues Veloso eAraujo, Flavio Henrique Duarte deUshizima, Daniela MayumiBianchi, Andrea Gomes CamposCarneiro, Cláudia MartinsMedeiros, Fátima Nelsizeuma Sombra de2020-05-082020-05-082019SILVA, R. R. V. et al. Radial feature descriptors for cell classification and recommendation. Journal of Visual Communication and Image Representation, v. 62, p. 105-116, jul. 2019. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1047320319301452?via%3Dihub>. Acesso em: 10 fev. 2020.1047-3203http://www.repositorio.ufop.br/handle/123456789/12176This paper introduces computational tools for cell classification into normal and abnormal, as well as content-based-image-retrieval (CBIR) for cell recommendation. It also proposes the radial feature descriptors (RFD), which define evenly interspaced segments around the nucleus, and proportional to the convexity of the nuclear boundary. Experiments consider Herlev and CRIC image databases as input to classification via Random Forest and bootstrap; we compare 14 different feature sets by means of False Negative Rate (FNR) and Kappa (k), obtaining FNR = 0.02 and k = 0.89 for Herlev, and FNR = 0.14 and k = 0.78 for CRIC. Next, we sort and rank cell images using convolutional neural networks and evaluate performance with the Mean Average Precision (MAP), achieving MAP = 0.84 and MAP = 0.82 for Herlev and CRIC, respectively. Cell classification show encouraging results regarding RFD, including its sensitivity to intensity variation around the nuclear membrane as it bypasses cytoplasm segmentation.en-USrestritoImage retrievalConvolutional neural networksArtigo publicado em periodicohttps://www.sciencedirect.com/science/article/pii/S1047320319301452?via%3Dihubhttps://doi.org/10.1016/j.jvcir.2019.04.012