Comput Math Methods Med - An improved computer vision method for white blood cells detection.

Tópicos

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Resumo

The automatic detection of white blood cells (WBCs) still remains as an unsolved issue in medical imaging. The analysis of WBC images has engaged researchers from fields of medicine and computer vision alike. Since WBC can be approximated by an ellipsoid form, an ellipse detector algorithm may be successfully applied in order to recognize such elements. This paper presents an algorithm for the automatic detection of WBC embedded in complicated and cluttered smear images that considers the complete process as a multiellipse detection problem. The approach, which is based on the differential evolution (DE) algorithm, transforms the detection task into an optimization problem whose individuals represent candidate ellipses. An objective function evaluates if such candidate ellipses are actually present in the edge map of the smear image. Guided by the values of such function, the set of encoded candidate ellipses (individuals) are evolved using the DE algorithm so that they can fit into the WBCs which are enclosed within the edge map of the smear image. Experimental results from white blood cell images with a varying range of complexity are included to validate the efficiency of the proposed technique in terms of its accuracy and robustness.

Resumo Limpo

automat detect white blood cell wbcs still remain unsolv issu medic imag analysi wbc imag engag research field medicin comput vision alik sinc wbc can approxim ellipsoid form ellips detector algorithm may success appli order recogn element paper present algorithm automat detect wbc embed complic clutter smear imag consid complet process multiellips detect problem approach base differenti evolut de algorithm transform detect task optim problem whose individu repres candid ellips object function evalu candid ellips actual present edg map smear imag guid valu function set encod candid ellips individu evolv use de algorithm can fit wbcs enclos within edg map smear imag experiment result white blood cell imag vari rang complex includ valid effici propos techniqu term accuraci robust

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