作　　者： ; ; ; ; ; ; ;

机构地区： 华南农业大学工程学院南方农业机械与装备关键技术省部共建教育部重点实验室

出　　处： 《农业工程学报》 2013年第10期175-182,共8页

摘　　要： 为探讨利用光谱分析技术对红火蚁蚁巢进行探测识别的可行性,该文利用高光谱仪采集红火蚁蚁巢光谱特征参数,采用微分法、对数法对原始光谱反射率进行处理,通过提取光谱特征参数的方法得到识别红火蚁蚁巢的最佳波段,确定识别不同地物的波段大多位于红光波段和近红外波段,分布在701～1510nm之间。利用欧氏距离法对识别效果进行验证,并通过实验室高光谱成像仪进行室内参照试验,对有效波段的可靠性加以验证。结果表明,原始光谱以及光谱对数变换方法能够有效区分红火蚁蚁巢土及周边不同地物,而一阶微分和对数后进行一阶微分变换得到的欧式距离可以区分草和蚁巢土及草和普通土,但不能区分蚁巢土与普通土。研究结果可为红火蚁蚁巢的快速检测提供参考。 Solenopsis invicta, wihich originated in Brazil, Argentina, Paraguay and the Panama Canal, has been spreading at the speed of 200 km every year since they invaded Mobile, Alabama in the United States from 1918 to 1931. Recently, Solenopsis invicta has indicated a tendency to rapidly spread all over the world, including China. They are polyphagous insects, but prefer high protein or high fat foods, such as the larvae of some small insects or vertebrates and seeds or fruits with high oil. Therefore, they are severely dangerous to human health, public security, agriculture, forestry production, and the ecological environment in the invaded areas. Solenopsis invicta is social insect of the family Formicidae, Hymenoptera with the habit of gregarious nesting. They are strongly offensive against intruders, and they will attack the intruders in full strength once their nest is disturbed. Thus, some experts think that the threat of Solenopsis invicta in China cannot be ignored and that corresponding measures should be imminently taken to prevent the Solenopsis invicta invasion. Research on the detection method of a Solenopsis invicta nest to eliminate Solenopsis invicta from the source is of practical significance to the prevention of a Solenopsis invicta disaster. Therefore, finding out the location of a nest of Solenopsis invicta is of more practical value than only exterminating Solenopsis invicta. The feasibility of detection of a nest of Solenopsis invicta based on spectrum analysis technology was examined by using an optical spectrum instrument with reflect characteristics. A differential coefficient method and a logarithmic method to analyze original spectral reflectivity were used. The method of using character factors was studied to get the best waveband for distinguishing the ant nest from other things. An Eculidean distance method was used to calculate the average distance, and effective band of the nest of Solenopsis invicta’s recognized effect. In addition, the average of the Euclidean distance of different

关 键 词： 光谱分析 虫害防治 探测 红火蚁蚁巢 欧式距离检验法

领　　域： [农业科学] [农业科学] [自动化与计算机技术] [自动化与计算机技术]