基于LGD-YOLO高精度轻量化目标检测网络的垃圾检测研究  

GARBAGE DETECTION BASED ON LGD-YOLO HIGH PRECISION LIGHTWEIGHT OBJECT DETECTION NETWORK

作　　者：肖立中 胡凡 XIAO Lizhong;HU Fan(School of Computer Science and Information Engineering,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学计算机科学与信息工程学院,上海201418

出　　处：《环境工程》2024年第6期169-177,共9页Environmental Engineering

基　　金：上海市自然科学基金项目(20ZR1455600)。

摘　　要：当前高速发展的社会和迅速增长的城市人口,使得日益严峻的垃圾污染问题越发凸显,垃圾分类处理势在必行。人工处理存在任务重、效率低等问题。部分自动化的分类方法检测精度低,速度慢。为提高复杂场景下垃圾检测准确率,同时轻量化结构,使其便于部署,提出一种融合轻量化卷积模块、注意力机制和多重感受野模块的改进YOLO v5s的垃圾检测模型Lightweight Garbage Detection-YOLO(LGD-YOLO)。首先,在网络结构中引入Ghost卷积和包含GSConv的Slim-Neck模块,使模型变得更加轻量化;其次,嵌入坐标注意力机制,侧重于关注重要信息,以提高检测精度。最后,引入多重感受野模块,提高模型的多尺度检测能力,避免小目标物体的漏检。采用包含不同环境下垃圾图片的Trash_dataset数据集进行测试验证。结果表明:改进后的模型参数量和计算量分别为5.77 M和9.2 GFLOPs,与原模型相比分别减少22.4%和56.4%,单张图片检测速度为26.5 ms,达到垃圾检测的实时性要求。此外,改进的算法具有良好的检测精度,mAP_(0.5)和mAP_(0.5∶0.95)分别达到96.20%和77.77%,优于当前流行的目标检测算法。At present,with the rapid development of society and the rapid growth of the urban population,garbage pollution has become increasingly prominent,and garbage classification is imperative.Manual processing has the problems of heavy tasks and low efficiency,and some automated classification methods have low detection accuracy and slow speed.To improve the accuracy of garbage detection in complex scenes,lighten the structure,and make it easier to deploy,an improved YOLO v5s garbage detection model,Lightweight Garbage Detection YOLO(LGD-YOLO)was proposed,which integrated a lightweight convolution module,attention mechanism,and multiple receptive field modules.First,Ghost convolution and Slim Neck module including GSConv were introduced into the network structure to make the model lighter.Secondly,the coordinate attention mechanism was embedded to focus on important information to improve the detection accuracy.Finally,the multi-receptive field module was introduced to improve the multi-scale detection capability of the model and avoid missing detection of small target objects.The data set containing trash garbage images in different environments was tested and verified.The experimental results showed that the parameters and calculation amount of the improved model were 5.77 M and 9.2 GFLOPs,respectively,which were 22.4%and 56.4%less than the original model.The single image detection speed was 26.5 ms,meeting the real-time requirements of garbage detection.In addition,the improved algorithm has good detection accuracy,with mAP_(0.5) and mAP_(0.5∶0.95) reaching 96.20%and 77.77%,respectively,which was superior to the current popular target detection algorithm.

关 键 词：垃圾分类 目标检测 轻量化网络 坐标注意力 多尺度检测 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程] TP391.41[自动化与计算机技术—控制科学与工程] X799.3[环境科学与工程—环境工程]