智能机房监控系统中损失函数与图像合成的优化  

Optimization of Loss Function and Image Synthesis in Smart Server Monitoring System

作　　者：朱曦阳 张春[1] 张德兵 ZHU Xi-yang;ZHANG Chun;ZHANG De-bing(Institute of Microelectronics,Tsinghua University,Beij ing 100084,China)

机构地区：[1]清华大学微电子学研究所,北京100084

出　　处：《微电子学与计算机》2019年第1期37-40,45,共5页Microelectronics & Computer

基　　金：国家自然科学基金项目(61327809)

摘　　要：为了实时监控机房服务器的工作状态,提出了一种智能机房监控方案,其通过基于卷积网络的图像识别完成服务器以及指示灯状态的识别与监控.针对目标识别中样本类别失衡会导致训练模型不收敛的问题,设计了一种自动调控样本类别失衡的损失函数及参数更新算法,用于平衡难易样本的训练,在VOC2007数据集上的测试精度为78.3%,好于YOLOv2等先进算法.为了减少训练数据采集所需要的成本,提出了一种基于多尺度化随机边缘信息融合算法的图像合成方法,使合成图片更加注重边缘信息,在Cityscapes数据集测试的像素精度为71%,较大程度超过pix2pix等方法,证明其可以大大降低图像采集成本.A smart server monitoring system is proposed to detect the working status of the server in real time, which finishes the recognition of the status of the server and indicator light through image recognition based on convolutional neural network.In order to solve the problem of class imbalance in target recognition,a novel loss function is designed to adjust class imbalances automatically.Its test accuracy of VOC2007 is 78.3%,which is better than the advanced methods such as YOLOv2.In addition,an image synthesis method based on multi-scale edge information fusion algorithm is proposed to reduce the cost of data collection.Its pixel precision of Cityscapes is 71%,which is much better than pix2pix.

关 键 词：目标检测 类别失衡 边缘信息 图像合成 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]