[目的]研究基于ACO-SVM的粮虫特征提取,探讨粮虫特征提取的可行性.[方法]通过分析储粮害虫图像识别系统中的1个关键环节——特征提取,提出把支持向量机(Support vector machine,简称SVM)算法中交叉验证训练模型的识别率作为储粮害虫特征提取评价准则的1个重要因子,将蚁群优化算法(Ant Colony Optimization,简称ACO)应用于粮虫特征的自动提取.[结果]该算法从粮虫的17维形态学特征中自动提取出面积、周长等7个特征的最优特征子空间,采用参数优化之后的SVM分类器对90个粮虫样本进行分类,识别率达到95％以上.[结论]该研究表明蚁群优化算法在粮虫特征提取中的应用是可行的.%[Objective] The aim was to study the feature extraction of stored-grain insects based on ant colony optimization and support vector machine algorithm, and to explore the feasibility of the feature extraction of stored-grain insects. [ Method ] Through the analysis of feature extraction in the image recognition of the stored-grain insects, the recognition accuracy of the cross-validation training model in support vector machine( SVM ) algorithm was taken as an important factor of the evaluation principle of feature extraction of stored-grain insects. The ant colony optimization (ACO) algorithm was applied to the automatic feature extraction of stored-grain insects. [Result] The algorithm extracted the optimal feature subspace of seven features from the 17 morphological features, including area and perimeter. The ninety image samples of the stored-grain insects were automatically recognized by the optimized SVM classifier, and the recognition accuracy was over 95%. [ Conclusion] The experiment showed that the application of ant colony optimization to the feature extraction of grain insects was practical and feasible.
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