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KMID : 1137820230440030176
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의공학회지
2023 Volume.44 No. 3 p.176 ~ p.181
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Microscopic Image-based Cancer Cell Viability-related Phenotype Extraction
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Kang Mi-Sun
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Abstract
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During cancer treatment, the patient's response to drugs appears differently at the cellular level. In this paper, an image-based cell phenotypic feature quantification and key feature selection method are presented to predict the response of patient-derived cancer cells to a specific drug. In order to analyze the viability characteristics of can- cer cells, high-definition microscope images in which cell nuclei are fluorescently stained are used, and individual- level cell analysis is performed. To this end, first, image stitching is performed for analysis of the same environment in units of the well plates, and uneven brightness due to the effects of illumination is adjusted based on the histogram.
In order to automatically segment only the cell nucleus region, which is the region of interest, from the improved image, a superpixel-based segmentation technique is applied using the fluorescence expression level and morpho- logical information. After extracting 242 types of features from the image through the segmented cell region infor- mation, only the features related to cell viability are selected through the ReliefF algorithm. The proposed method can be applied to cell image-based phenotypic screening to determine a patient's response to a drug.
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KEYWORD
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Microscopic image, Cancer cell, Image analysis, Feature extraction, Feature selection
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