678 KB29 KB200020242016Oyebode, Kazeem O.Tapamo, Jules R.številka:1letnik:35str. 29-37, VISSN:1580-3139COBISSID_HOST:32805593URN:URN:NBN:SI:doc-YYXXKD2WenDruštvo za stereologijo in kvantitativno analizo slike, Medicinska fakultetaImage analysis and stereologycell segmentationdelitev celicgraph cutizbira parametrovparameter selectionrazrez grafaAdaptive parameter selection for graph cut-based segmentation on cell images|Graph cut segmentation approach provides a platform for segmenting images in a globally optimised fashion. The graph cut energy function includes a parameter that adjusts its data term and smoothness term relative to each other. However, one of the key challenges in graph cut segmentation is finding a suitable parameter value that suits a given segmentation. A suitable parameter value is desirable in order to avoid image over- segmentation or under-segmentation. To address the problem of trial and error in manual parameter selection, we propose an intuitive and adaptive parameter selection for cell segmentation using graph cut. The greyscale image of the cell is logarithmically transformed to shrink the dynamic range of foreground pixels in order to extract the boundaries of cells. The extracted cell boundary dynamically adjusts and contextualises the parameter value of the graph cut, countering its shrink bias. Experiments suggest that the proposed model outperforms previous cell segmentation approachesTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaDruštvo za stereologijo in kvantitativno analizo slike