Abstract :
[en] Leukocytes, another name for white blood cells, or WBCs, are essential components of our immune system, playing a crucial role in protecting our bodies from infection and disease. When we look at immune disorders and bacterial infections, we see that lymphocytes play a central role in the adaptive immune response, while neutrophils are essential in the fight against bacterial infections, and basophils are involved in allergic and inflammatory reactions. When one of these three types of white blood cell (WBC) is affected, it can have a variety of consequences for the immune system and the body's overall health, leading to serious illnesses such as AIDS, leukemia and severe allergic reactions such as anaphylaxis. The diagnosis of some disorders can benefit greatly from the segmentation of the white blood cell nucleus. Analysis of cell morphology, in particular the shape and size of the nucleus in microscopic images, can provide indications of a cell's state of health. In this work, we suggest a fully automatic method for segmenting the nuclei of the three types of WBC (neutrophils, lymphocytes, basophils) using a convolutional neural network named WCSegNet based on the Unet architecture consisting of residual convolution blocks activated by the LeakyRlu activation function. Our technique succeeded in segmenting the cell nucleus and classifying microscopic images according to their type. The results obtained are encouraging, with precision scores in excess of 0.90.
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