用于识别田间空心莲子草的颜色特征的研究

Color Indices for Alternanthera Philoxeroides Identification in Field

对于空心莲子草这一恶性杂草,提出了引入计算机视觉技术在其出苗后迅速喷洒除草剂的策略。针对营养繁殖的空心莲子草出苗后叶片由紫红色变为绿色的现象,根据用于绿色植物分割的颜色特征突出绿体G的特点选择了15种突出红体R的颜色特征识别空心莲子草。使用权重为出苗天数的线性加权法得出识别效果较好的颜色特征是r,2r-g-b,1.4r-g-b。其方法可用于其它红色杂草。

The primary goal of the study is to control Alternanthera philoxeroides with computer vision. 15 indices were studied for distinguish weeds from background because the leaves change from red to green. Three indices including r, 2r-g-b and 1.4r-g-b are found via linear weighted method. The method could be potentially useful for distinguish other red weeds from background.