利用计算机视觉技术测量小麦田间蚜虫利用计算机视觉技术测量小麦田间蚜虫.pdf

b i o s y s t e m s e n g i n e e r i n g 1 4 1 ( 2 0 1 6 ) 8 2 e9 3 Available online at ScienceDirect journal homepage: /l ocate/issn Research Paper Detection of aphids in wheat fields using a computer vision technique * ** Tao Liu, Wen Chen, Wei Wu, Chengming Sun , Wenshan Guo , Xinkai Zhu Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China a r t i c l e i n f o Aphids cause major damage in wheat fields resulting in significant yield losses. Monitoring Article history: aphid populations and the identification of aphid species provides important data related Received 3 July 2015 to pest population dynamics and integrated pest management. Manual identification and Received in revised form counting of wheat aphids is labour intensive, inefficient and subjective factors can influ- 18 October 2015 ence its accuracy. A method of aphid identification and population monitoring based on Accepted 16 November 2015 digital images was developed. It used a maximally stable extremal region descriptor to Published online xxx simplify the background of field images containing aphids, and then used histograms of oriented gradient features and a support vector machine to develop an aphid identification Keyword: