Searching for cell signatures in multidimensional feature spaces
by Romuere Silva; Flávio Araújo; Mariana Rezende; Paulo Oliveira; Fátima Medeiros; Rodrigo Veras; Daniela Ushizima
International Journal of Biomedical Engineering and Technology (IJBET), Vol. 36, No. 3, 2021

Abstract: Despite research on cervical cells since 1925, systems to automatically screen images from conventional Pap smear tests continue to be unavailable. One of the main challenges in deploying precise software tools is to validate cell signatures. In this paper, we introduce an analysis framework, CRIC-feat, that expedites the investigation of different image databases and respective descriptors, particularly applicable to Pap images. This paper provides a three-fold contribution: 1) we first review and discuss the main feature extraction protocols for cell description and implementations suitable for cervical cells; 2) we present a new application of Gray level run length (GLRLM) features to Pap images; 3) we evaluate 93 cell classification approaches, and provide a guideline for obtaining the most accurate description, based on two current public databases with digital images of real cells. Finally, we show that the nucleus information is preponderant in cell classification, particularly when considering the GLRLM feature set.

Online publication date: Wed, 11-Aug-2021

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