检索结果-内蒙古大学图书馆

Structured mean shift method and its application on image segmentation

Journal of Theoretical and Applied Information Technology 2012年第2期44卷 271-277页

作者： Xiao, Weichu Guo, Baolong Chen, Weihong School of Communication and Electronic Engineering Hunan City University Yiyang 413002 Hunan China Institute of Intelligent Control and Image Engineering Xidian University Xi'an 710071 Shanxi China

It was found that the traditional Mean Shift algorithm segmentation often produces the connection channel, several categories between clusters can not be completely separated from the problem, an improved classification of the structured mean shift segmentation algorithm iterations to obtain the initial cluster in center on the basis of different bandwidth matrix stepwise clustering, resulting in a different class collection of cluster centers, and the establishment of a vested in the tree structure, ultimately through the attribution of the leaf nodes and the root node are classified in order to complete the image segmentation. Experiments show that the algorithm can better retain the image of local information, and has better applicability. © 2005 - 2012 JATIT & LLS. All rights reserved.

关键词： image segmentation

来源：评论

学校读者我要写书评

暂无评论

Compatible texture image segmentation algorithm based on mean shift method

引用

International Review on Computers and Software 2012年第4期7卷 1931-1937页

Based on wavelet multi-resolution analysis and mean-shift Unsupervised texture segmentation method and the mean shift clustering based on wavelet feature completely unsupervised adaptive multi-scale segmentation and neither the need for training is not necessary to split the categorya priori knowledge of the number, etc. the method according to the strategy in scale between the transmission of information, adaptive to different regions of the image to determine the appropriate split of the scale, texture inner region using the coarse scale features at the junction between the different texture to use smaller scale features to ensure regional consistency to more accurately locate the image edge contrast experimental results show that the method has good performance in the synthetic textures and real texture image, multi-scale segmentation process is similar to human visual system, perception, and advantages compared to the traditional supervised segmentation method. © 2012 Praise Worthy Prize S.r.l. - All rights reserved.

关键词： Wavelet transforms

来源：评论

学校读者我要写书评

暂无评论

An improved single-image super-resolution algorithm through neighbor embedding and fusion of image patch

引用

International Review on Computers and Software 2012年第3期7卷 1308-1315页

作者： Xiao, Weichu Guo, Baolong School of Communication and Electronic Engineering Hunan City University Yiyang 413002 Hunan China Institute of Intelligent Control and Image Engineering Xidian University Xi'an 710071 Shanxi China

Neighbor embedding algorithm has been widely used in single-image super-resolution (SR) reconstruction, which makes the assumption that neighbor patches embedded are contained in a single manifold. However, this is not true for SR because of "one-to-many" mappings between low-resolution (LR) and high-resolution (HR) patches. To overcome the problem, we believe that textures may be contained in multiple manifolds. Under this assumption, by considering that the middle-frequency information of LR images has greater correlation with high resolution image than low frequency. We propose an improved single-image super-resolution algorithm. First, the low-resolution test and train image is decomposed into its middle-frequency and low-frequency components by applying the Gaussian low-pass filter. Then, we use locally linear embedding (LLE) to estimate HR patches for middle-frequency and low-frequency components of the low-resolution test image, respectively. Finally, two HR patches are fused into one by using fusion rules and all HR patches are merged to obtain the final HR image. The experimental results show that the proposed method performs better in both quantitative and qualitative evaluation compare with several NE-related SR approaches and the bi-cubic interpolation. © 2012 Praise Worthy Prize S.r.l.

关键词： image fusion

来源：评论

学校读者我要写书评

暂无评论

The Analytical Algorithm of Program Quaternion in the Arbitrary Spacecraft Attitude-Adjusting control

The Analytical Algorithm of Program Quaternion in the Arbitr...

引用

2011 3rd International Asia Conference on Informatics in control, Automation and Robotics(CAR 2011)

作者： Shaobo Ni Jianwu Wu Jiayuan Shan Lei Liu Mao Su School of Aerospace Engineering Beijing Institute of technology Beijing Aerospace Automatic Control Institute Key Laboratory of Education Ministry for Image Processing and Intelligent Control Department of Control Science & Engineering Huazhong University of Science and Technology

The analytical algorithm of program quaternion is studied,aiming at the problem of the arbitrary spacecraft attitude-adjusting *** also provides the analytical constructor method of the program quaternion for any given initial quaternion and angle velocity,terminal quaternion and angle *** advantages of this method are as follows:(1)Good *** of the initial and terminal conditions are arbitrary;(2)Simple *** calculation process only involves the simple algebraic operation;(3)Easy to *** using the program quaternion model,the time consumption in the process of spacecraft attitude adjustment and the maximum angular velocity can be optimized *** to the Mathematical simulation results,the program quaternion tracking can be realized by a simple PD control law.

关键词： Spacecraft Dynamic Modeling Attitude control Quaternion

来源：评论

学校读者我要写书评

暂无评论

Method of boundary extraction based on schrödinger equation 21

Method of boundary extraction based on schrödinger equation

引用

2008 21st ISPRS International Congress for Photogrammetry and Remote Sensing

作者： Lou, Liantang Zhan, Xin Fu, Zhongliang Ding, Mingyue School of Remote Sensing and Information Engineering Wuhan University Wuhan430072 China School of Science Wuhan Institute of Technology Wuhan430073 China Institute for Pattern Recognition and Artificial Intelligence Key Laboratory of Education Ministry for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan430074 China

To overcome the main drawbacks of global minimal for active contour models (L. D. Cohen and Ron Kimmel) that the contour is only extracted partially for low SNR images, Method of boundary extraction based on Schrödinger Equation is proposed. Our Method is based on computing the numerical solutions of initial value problem for second order nonlinear Schrödinger equation by using discrete Fourier Transformation. Schrödinger transformation of image is first given. We compute the probability P(b,a) that a particle moves from a point a to another point b according to I-Type Schrödinger transformation of image and obtain boundary of object by using quantum contour model.

关键词： Initial value problems

来源：评论

学校读者我要写书评

暂无评论

An Overview of Hierarchical Temporal Memory: A New Neocortex Algorithm

An Overview of Hierarchical Temporal Memory: A New Neocortex...

引用

2012 International Conference on Modelling,Identification and control(建模、辨别与控制国际会议 ICMIC 2012)

作者： Xi Chen Wei Wang Wei Li Institute of System engineering Huazhong University of Science & TechnologyImage Processing and Int Candidate for Master of theInstitute of System engineering Huazhong University of Science &Technolog Department of Control Science &Engineering Image Processing and Intelligent Control Key Laboratory o

ISBN: (纸本)9781467315241

The overview presents the development and application of Hierarchical Temporal Memory (HTM).HTM is a new machine learning method which was proposed by Jeff Hawkins in *** is a biologically inspired cognitive method based on the principle of how human brain *** method invites hierarchical structure and proposes a memory-prediction framework, thus making it able to predict what will happen in the near *** overview mainly introduces the developing process of HTM, as well as its principle, characteristics, advantages and applications in vision, image processing and robots movement, some potential applications by using HTM , such as thinking process, are also put forward.

关键词： hierarchical Bayesian network spatial-temporal memory-prediction temporal sequence pattern recognition

来源：评论

学校读者我要写书评

暂无评论

Temperature Gradient Analyses of a Tubular Solid Oxide Fuel Cell Fueled by Methanol

引用

Transactions of Tianjin University 2023年第1期29卷 14-30页

作者： Qidong Xu Meiting Guo Lingchao Xia Zheng Li Qijiao He Dongqi Zhao Keqing Zheng Meng Ni Department of Building and Real Estate Research Institute for Sustainable Urban Development(RISUD)&Research Institute for Smart Energy(RISE)The Hong Kong Polytechnic UniversityHong Kong 999077China School of Artifi cial Intelligence and Automation Key Laboratory of Image Processing and Intelligent ControlHuazhong University of Science and TechnologyWuhan 430074China School of Low-Carbon Energy and Power Engineering China University of Mining and TechnologyXuzhou 221116China

Thermal management in solid oxide fuel cells(SOFC)is a critical issue due to non-uniform electrochemical reactions and convective fl ows within the ***,a 2D mathematical model is established herein to investigate the thermal responses of a tubular methanol-fueled *** show that unlike the low-temperature condition of 873 K,where the peak temperature gradient occurs at the cell center,it appears near the fuel inlet at 1073 K because of the rapid temperature rise induced by the elevated current *** the large heat convection capacity,excessive air could not eff ectively eliminate the harmful temperature gradient caused by the large current ***,optimal control of the current density by properly selecting the operating potential could generate a local thermal neutral ***,the maximum axial temperature gradient could be reduced by about 18%at 973 K and 20%at 1073 K when the air with a 5 K higher temperature is ***,despite the higher electrochemical performance observed,the cell with a counter-fl ow arrange-ment featured by a larger hot area and higher maximum temperature gradients is not preferable for a ceramic SOFC system considering thermal ***,this study could provide insightful thermal information for the operating condition selection,structure design,and stability assessment of realistic SOFCs combined with their internal reforming process.

关键词： Solid oxide fuel cell Modeling Methanol fuel Temperature gradient Internal reforming

来源：评论

学校读者我要写书评

暂无评论

Model Predictive control Method for Multi-motor System with Dead Zone

Model Predictive Control Method for Multi-motor System with ...

引用

作者： Genglin Fan Xiuchuan Tang Yi Shen Linan Deng China-EU Institute for Clean and Renewable Energy Key Laboratory of Image Processing and Intelligent Control Huazhong University of Science and Technology School of Mechanical Science and Engineering Key Laboratory of Image Processing and Intelligent Control Huazhong University of Science and Technology School of Artificial Intelligence and Automation Key Laboratory of Image Processing and Intelligent Control Huazhong University of Science and Technology

The multi-motor system shows excellent performance in achieving high-precision control in the applications with large load inertia,such as large-aperture telescopes and highprecision processing machine ***,the non-linearity of gear transmission remains a key challenge that will cause the fluctuation of angular velocity and position of the load in the multi-motor *** order to compensate for the nonlinearity in the multi-motor system,this paper introduces a deadzone model into the spring-damper dynamics of the multi-motor system,based on which a model predictive control(MPC) method is proposed to control the angular velocity and angle of the *** optimization target of the proposed controller is to limit the fluctuations of input torque as much as *** effectiveness of the dead-zone based dynamic model and the MPC method are verified by simulation.

关键词： multi-motor system MPC dead zone

来源：评论

学校读者我要写书评

暂无评论

An overview about pinning control of complex networks

An overview about pinning control of complex networks

引用

2012 International Conference on Modelling,Identification and control(建模、辨别与控制国际会议 ICMIC 2012)

作者： Xi Chen Lan Zhang Wei Li Institute of System engineering Huazhong University of Science & TechnologyImage Processing and Int Candidate for Master of Systemengineering Huazhong University of Science & TechnologyImageProcessin Department of Control Science &Engineering Image Processing and Intelligent Control Key Laboratory o

ISBN: (纸本)9781467315241

Synchronization and pinning control of complex networks is to regulate the agents' behavior and improve network *** this article, we review some recent developments in pinning *** algorithms and pining strategies in different types of complex networks are presented and *** pinning control is also *** addition, the research extended to discrete-time case is *** some related research, the development in consensus and flocking of multi-agent system are introduced *** last, we give some ideas about pinning control in social networks.

关键词： Complex network pinning control adaptive control multi-agent systems

来源：评论

学校读者我要写书评

暂无评论

Synchronization of Switched Neural Networks with Communication Delays via the Event-Triggered control

引用

IEEE Transactions on Neural Networks and Learning Systems 2017年第10期28卷 2334-2343页

作者： Wen, Shiping Zeng, Zhigang Chen, Michael Z. Q. Huang, Tingwen Guangdong Province Key Lab of Digital Manufacturing Equipment Key Laboratory of Image Processing Intelligent Control of Education Ministry of China School of Automation Guangdong HUST Industrial Technology Research Institute Huazhong University of Science Technology Wuhan Hubei430074 China Department of Mechanical Engineering University of Hong Kong Hong Kong Hong Kong Texas A M University at Qatar DohaTX5825 United States

This paper addresses the issue of synchronization of switched delayed neural networks with communication delays via event-triggered control. For synchronizing coupled switched neural networks, we propose a novel event-triggered control law which could greatly reduce the number of control updates for synchronization tasks of coupled switched neural networks involving embedded microprocessors with limited on-board resources. The control signals are driven by properly defined events, which depend on the measurement errors and current-sampled states. By using a delay system method, a novel model of synchronization error system with delays is proposed with the communication delays and event-triggered control in the unified framework for coupled switched neural networks. The criteria are derived for the event-triggered synchronization analysis and control synthesis of switched neural networks via the Lyapunov-Krasovskii functional method and free weighting matrix approach. A numerical example is elaborated on to illustrate the effectiveness of the derived results. © 2012 IEEE.

关键词： Synchronization

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：