期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
基于STA/LTA岩石破裂微震信号实时识别算法及工程应用 被引量:16
1
作者 陈炳瑞 吴昊 +3 位作者 池秀文 刘辉 伍梦蝶 晏俊伟 《岩土力学》 EI CAS CSCD 北大核心 2019年第9期3689-3696,共8页
微震监测获取的数据中通常混有大量的非岩石破裂信号,该类信号目前主要通过人工经验进行识别与滤除,这消耗了大量的宝贵时间,严重影响灾害的防治和救援效率。对大量微震信号进行分析,发现STA/LTA算法在信号实时触发后能大致表征波形振... 微震监测获取的数据中通常混有大量的非岩石破裂信号,该类信号目前主要通过人工经验进行识别与滤除,这消耗了大量的宝贵时间,严重影响灾害的防治和救援效率。对大量微震信号进行分析,发现STA/LTA算法在信号实时触发后能大致表征波形振幅和频率的变化,岩石破裂信号和非岩石破裂信号在延迟位置处R值具有差异性。基于此,提出了岩石破裂微震信号实时识别算法。新算法应用到白鹤滩水电站地下厂房、红透山和阿舍勒铜矿深部采场3个工程,岩石破裂事件识别的准确率分别是85.98%、92.45%和91.06%,非岩石破裂事件滤除的准确率分别是72.06%、83.11%和49.87%。该算法使基于岩石破裂微震信息的岩石工程灾害自动分析与预警成为可能,具有重要意义。 展开更多
关键词 实时识别算法 微震监测 STA/LTA 岩石破裂信号 岩爆 工程应用
下载PDF
Using Kinect for real-time emotion recognition via facial expressions 被引量:4
2
作者 Qi-rong MAO Xin-yu PAN +1 位作者 Yong-zhao ZHAN Xiang-jun SHEN 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2015年第4期272-282,共11页
Emotion recognition via facial expressions (ERFE) has attracted a great deal of interest with recent advances in artificial intelligence and pattern recognition. Most studies are based on 2D images, and their perfor... Emotion recognition via facial expressions (ERFE) has attracted a great deal of interest with recent advances in artificial intelligence and pattern recognition. Most studies are based on 2D images, and their performance is usually computationally expensive. In this paper, we propose a real-time emotion recognition approach based on both 2D and 3D facial expression features captured by Kinect sensors. To capture the deformation of the 3D mesh during facial expression, we combine the features of animation units (AUs) and feature point positions (FPPs) tracked by Kinect. A fusion algorithm based on improved emotional profiles (IEPs) arid maximum confidence is proposed to recognize emotions with these real-time facial expression features. Experiments on both an emotion dataset and a real-time video show the superior performance of our method. 展开更多
关键词 KINECT Emotion recognition Facial expression Real-time classification Fusion algorithm Supportvector machine (SVM)
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部