14 July 2015 Identification of malaria infected red blood samples by digital holographic quantitative phase microscope
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Abstract
Development of devices for automatic identification of diseases is desired especially in developing countries. In the case of malaria, even today the gold standard is the inspection of chemically treated blood smears through a microscope. This requires a trained technician/microscopist to identify the cells in the field of view, with which the labeling chemicals gets attached. Bright field microscopes provide only low contrast 2D images of red blood cells and cell thickness distribution cannot be obtained. Quantitative phase contrast microscopes can provide both intensity and phase profiles of the cells under study. The phase information can be used to determine thickness profile of the cell. Since cell morphology is available, many parameters pertaining to the 3D shape of the cell can be computed. These parameters in turn could be used to decide about the state of health of the cell leading to disease diagnosis. Here the investigations done on digital holographic microscope, which provides quantitative phase images, for comparison of parameters obtained from the 3D shape profile of objects leading to identification of diseased samples is described.
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Nimit R. Patel, Nimit R. Patel, Vani K. Chhaniwal, Vani K. Chhaniwal, Bahram Javidi, Bahram Javidi, Arun Anand, Arun Anand, } "Identification of malaria infected red blood samples by digital holographic quantitative phase microscope", Proc. SPIE 9536, Advanced Microscopy Techniques IV; and Neurophotonics II, 95360E (14 July 2015); doi: 10.1117/12.2183746; https://doi.org/10.1117/12.2183746
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