In order to realize the high-quality recycling of plastic waste

a fine classification method of plastic waste based on Fisher vector（FV）and deep convolutional neural network is proposed.The method uses the near-infrared spectrum of plastic garbage as the original data

and combines the deep convolutional neural network with Fisher vector coding to establish a fine classification model of plastic garbage.The verification experiment is designed for several typical plastic materials.The experimental results show that the classification accuracy of the model reaches 91.25 %

which makes the fine classification of plastic waste possible.