Improved recognition of Echinococcus granulosus protoscoleces using visual saliency and scale-invariant features

Echinococcosis—a parasitic disease caused by Echinococcus granulosus or Echinococcus multilocularis larvae—occurs in many regions in the world. This disease can pose a serious threat to public health and thus requires a convenient and cost-effective method for early detection. So, we developed a novel method based on visual saliency and scale-invariant features that detects the tapeworm parasites. This method improves upon existing bottom-up computational saliency models by introducing a visual attention mechanism. The results indicated that the proposed method offers a higher level of both accuracy and computational efficiency when detecting Echinococcus granulosus protoscoleces, which in turn could improve early detection of echinococcosis.     

检测抗冻蛋白生物学活性两种方法的比较

为了比较两种方法测定昆虫抗冻蛋白生物学活性的优劣,通过抗冻蛋白细菌低温保护实验测定菌液OD600和菌落计数两种方法同时研究洛氏脊漠甲抗冻蛋白对大肠杆菌的低温保护效果.实验表明发现这两种方法所得结果相近,相关系数r=0.82~1.0,相关性显著(p<0.05).菌落计数法的误差小于OD值法,适用于菌落数少的情况,OD值法适用于菌落密度大的情况,两种方法都可用于研究抗冻蛋白低温保护活性.