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Automatic Detection of Vaginal Bacteria Based on Superpixel and Support Vector Machine
1 Department of Biomedical Engineering,School of Medicine, Shenzhen University, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Shenzhen 518060, Guangdong, China
2 Department of Laboratory, the Sixth People’s Hospital of Shenzhen, the Affiliated Hospital of Nanshan, Shenzhen University, Shenzhen 518052, Guangdong, China
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Abstract  The vaginal disorders or infections caused by bacteria may lead to serious diseases including ectopic pregnancy, infertility, acute or chronic pelvic inflammatory. In clinics, cytology screening is used to prevent vaginal disease; however, misdiagnosis and missed diagnosis occasionally occurred. Here we presented an algorithm for the automatic detection of vaginal bacteria based on the superpixel and support vector machine using images from Gram stain. The algorithm applied simple linear iterative clustering to compute superpixel. We characterized these superpixels areas using features of shape and color and histograms of oriented gradients, and then performed support vector machine classification.〓Fourty negative of BV and 60 indicative of BV images were chosen, one of 10 negative of BV and 20 indicative of BV images were used for training the classifier, the rest of the images for testing the algorithm. Results suggest that the proposed method reached the average ZSI of 8927%, showing promising potentials of clinical application.
Key wordsvaginal bacteria      superpixel      support vector machine (SVM)      histograms of oriented gradients(HOG)      automated detection     
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http://cjbme.csbme.org/EN/ 10.3969/j.issn.0258-8021. 2015. 02.011     OR     http://cjbme.csbme.org/EN/Y2015/V34/I2/204
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