检索结果-内蒙古大学图书馆

2015年中国智能自动化学术会议

作者： Jin Wu Xuejie Nian Wankou Yang Changyin Sun School of Automation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Key Laboratory of Child Development and Learning Science of Ministry of Education Southeast University

There is a growing interest in subspace learning techniques for face recognition. This paper proposes a novel face recognition method based on MPCA with Gabor tensor representation. Although the Gabor face representation has achieved great success in face recognition, the excessive dimension of the data space often brings the algorithms into the curse of dimensionality dilemma. In this paper, we propose a 3rd-order Gabor tensor representation derived from a complete response set of 40 Gabor filters. Then MPCA(Multi-linear Principal Component Analysis) is applied to each Gabor tensor to extract three discriminative *** dimension reduction is done in such a way that most useful information is retained. The subspaces are finally integrated for classification. Experimental results on ORL database show promising results of the proposed method.

关键词： Face recognition MPCA Gabor tensor Representation

来源：评论

学校读者我要写书评

暂无评论

An Enhanced Local Ternary Patterns Method for Face Recognition 33

An Enhanced Local Ternary Patterns Method for Face Recogniti...

引用

第三十三届中国控制会议

作者： WANG Zhenyu HUANG Rong YANG Wankou SUN Changyin School of Automation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education

ISBN: (纸本)9781479947249

Feature descriptor based methods(*** Binary Patterns,Local Ternary Patterns) have gained encouraging results in face *** one needs to manually set the threshold in Local Ternary Patterns(LTP).The threshold in LTP is not data adaptive and not robust to *** some cases,we may not give a suitable threshold for *** by Weber's Law,here a data adaptive threshold strategy is prosed for LTP and an enhanced LTP is given for face *** evaluate the enhanced LTP on ORL and FERET face databases and the results demonstrate that the enhanced LTP significantly improves the performances.

关键词： local ternary patterns,Weber's Law,feature descriptor,face recognition

来源：评论

学校读者我要写书评

暂无评论

Emulating manual welding process by two cooperative robots 33

Emulating manual welding process by two cooperative robots

引用

第三十三届中国控制会议

作者： GAN Yahui DAI Xianzhong DA Qi School of Automation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education

ISBN: (纸本)9781479947249

The problem of how to emulate a manual welding process by two cooperative robotic manipulators is investigated in this *** emulating process is intrinsically a trajectory planning process for the two cooperative *** of skilled welders and technical requirements in a welding process have been modeled and integrated into the robot trajectory planning *** model of trajectory planing for two cooperative robots doing a welding task is in a constrained optimization form.A Genetic Algorithm solver has been adopted to solve such an optimization ***-connect-pipe welding experiment has been carried out at the end of the paper and the weld results verified the effectiveness of our method.

关键词： emulate manual welding,cooperative robot,Genetic Algorithm,Pipe-connect-pipe welding

来源：评论

学校读者我要写书评

暂无评论

Robust Second-Order Tracking of Multi-agent systems without Velocity measurements and with Input Saturation

Robust Second-Order Tracking of Multi-agent Systems without ...

引用

第三十四届中国控制会议

作者： Qingling Wang Changyin Sun Jian Hou Yingjiang Zhou School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing Aerosapce Automatic Control Institute Nanjing University of Posts and Telecommunications

ISBN: (纸本)9781467374439

This paper investigates the robust second-order tracking problem of multi-agent systems without velocity measurements and with input saturation on detailed balanced directed communication topologies, where agents' dynamics are subject to uncertain and external disturbances. We first construct one distributed bounded controller for multi-agent systems without uncertain and external disturbances. Then, combined with the controller, one modifying uncertainty and disturbance estimator(UDE)is proposed to approximate the situation where neither the velocity measurements nor their asymptotic estimation is *** is shown that the synchronization errors are bounded and their ultimate bounds could be arbitrarily small by choosing some parameters appropriately. Simulation results are presented to show the effectiveness of the controllers.

关键词： Robust second-order consensus,without velocity measurements,uncertainty and disturbance estimator,input saturation.

来源：评论

学校读者我要写书评

暂无评论

Distributed Detectability and Filter Design in Homogeneous Sensor Networks 33

Distributed Detectability and Filter Design in Homogeneous S...

引用

第三十三届中国控制会议

作者： ZHANG Ya TIAN Yu-Ping School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education

ISBN: (纸本)9781479947249

This paper studies distributed filtering problem of homogeneous sensor *** part of sensors can get observations of the process and consensus based filters are *** the distributed detectability and the suboptimal filter design are *** converting the stability problem of estimation errors of sensors under time-varying topologies to the robust stability problem of some uncertain system,two sufficient distributed detectability conditions are *** is LMI-based and the other is given by the eigenvalues of the process matrix and Laplacian matrices.A suboptimal algorithm to design the consensus based filter gains is proposed and the convergence of the algorithm is *** examples are given to illustrate the results.

关键词： Distributed filter,Detectability,Consensus,Multi-agent systems,Sensor networks

来源：评论

学校读者我要写书评

暂无评论

Extended State Observer Based Adaptive control Scheme for PMSM System 33

Extended State Observer Based Adaptive Control Scheme for PM...

引用

第三十三届中国控制会议

作者： Li Xiaodi Li Shihua School of Automation Southeast University Key laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education

ISBN: (纸本)9781479947249

In this paper, the speed regulation problem for permanent magnet synchronous motor(PMSM) systems under vector control framework is studied. A modified composite control strategy combining model reference adaptive control(MRAC)method and extended state observer(ESO) technology, called MRAC+ESO method, is proposed. controller is designed for the speed loop of the permanent magnet synchronous motor(PMSM) to improve the performance of the system. The stability analysis, simulation and experimental results are presented to show the effectiveness of the proposed control method.

关键词： Model reference adaptive control(MRAC),Permanent magnet synchronous motor(PMSM),Speed regulation system,Extended state observer(ESO),Composite controller

来源：评论

学校读者我要写书评

暂无评论

STATE FEEDBACK STABILIZATION FOR A CLASS OF NONLINEAR TIME-DELAY systems VIA DYNAMIC LINEAR controlLERS

引用

Journal of systems Science & complexity 2014年第3期27卷 453-462页

作者： CHAI Lin QIAN Chunjiang School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Southeast University Department of Electrical and Computer Engineering University of Texas at San AntonioSan AntonioTX 78249USA

The dynamic linear state feedback control problem is addressed for a class of nonlinear systems subject to ***,using the dynamic change of coordinates,the problem of global state feedback stabilization is solved for a class of time-delay systems under a type of nonhomogeneous growth *** the aid of an appropriate Lyapunov-Krasovskii functional and the adaptive strategy used in coordinates,the closed-loop system can be globally asymptotically stabilized by the dynamic linear state feedback *** growth condition in perturbations are more general than that in the existing *** correctness of the theoretical results are illustrated with an academic simulation example.

关键词： Dynamic linear controller global stabilization nonlinear time-delay systems state feed-back control.

来源：评论

学校读者我要写书评

暂无评论

Time-varying universe based linguistic dynamic analysis of timing design for parallel traffic light

Time-varying universe based linguistic dynamic analysis of t...

引用

International Conference on Informative and Cybernetics for Computational Social systems (ICCSS)

作者： Hong Mo Fei-Yue Wang Fenghua Zhu School of Electrical and Information Engineering Changsha University of Science and Technology Changsha CN State Key Lab. of Management and Control for Complex Systems Institute of Automation CN

Reasonable timing design for traffic light can induce and maintain the transportation systems in good order. How to allocate the time are the keys. In the paper, the theory of time-varying universe is used to describe the circle time, and corresponding fuzzy sets on the universe are also discussed to modeling the situation of traffic flow, then the parallel traffic management and control methods which are dynamic with the time change are presented. A simulation example are provided to analyze the linguistic dynamic evolution of timing design of traffic light when the traffic flow is change with time-varying for an intersection.

关键词： Timing Pragmatics Vehicle dynamics Fuzzy sets complex systems Vehicles

来源：评论

学校读者我要写书评

暂无评论

Research on Panoramic Vision System of Mobile Robot

Research on Panoramic Vision System of Mobile Robot

引用

第27届中国控制与决策会议

作者： Qiaobing Yao Hualong Yu Wankou Yang Changyin Sun School of Autmation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of EducationSoutheast University Key Laboratory of Child Development and Learning Science of Ministry of Education Southeast University

ISBN: (纸本)9781479970186

This paper presents an imaging method for 360-degree panoramic view based on four wide angle *** order to complete the image mosaic,all the parameters such as focal length,principal point and distortion coefficients,etc are calibrated by our proposed calibration ***,our approach does not adopt the scheme which stitching all the images to the surrounding view after distortion *** proposed method directly calculates the mapping relationship between the wide-angle lens images and cylindrical projection images to generate lookup tables which can greatly simplifies the computation and reduces the loss of information in each ***,panoramic image is composed by image registration and image *** results show that this method is valid.

关键词： Image mosaic Camera calibration Cylindrical projection LUTs

来源：评论

学校读者我要写书评

暂无评论

K-Means Clustering Based on Density for Scene Image Classification

K-Means Clustering Based on Density for Scene Image Classifi...

引用

2015年中国智能自动化学术会议

作者： Ke Xie Jin Wu Wankou Yang Changyin Sun School of Autmation Southeast University Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education Southeast University Key Laboratory of Child Development and Learning Science of Ministry of Education Southeast University

K-means clustering has been extremely popular in scene image classification. However, due to the random selection of initial cluster centers, the algorithm cannot always provide the most optimal results. In this paper, we develop a density-based k-means clustering. First, we calculate the density and distance for each feature vector. Then choose those features with high density and large distance as initial cluster centers. The remaining steps are the same with k-means. In order to evaluate our proposed algorithm, we have conducted several experiments on twoscene image datasets: Fifteen Scene Categories dataset and UIUC Sports Event dataset. The results show that our proposed method has good repeatability. Compared with the traditional k-means clustering, it can achieve higher classification accuracy when applied in multiclass scene image classification.

关键词： K-means Density Scene image classification

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：