检索结果-内蒙古大学图书馆

International Conference on Pattern Recognition

作者： Sonya Coleman Bryan Scotney Bryan Gardiner School of Computing and Intelligent Systems University of Ulster Magee UK School of Computing and Information Engineering University of Ulster Coleraine UK

ISBN: (纸本)9781424475421

The Spiral Architecture has been developed as a fast way of indexing a hexagonal pixel-based image. In combination with spiral addition and spiral multiplication, methods have been developed for hexagonal image processing operations such as translation and rotation. Using the Spiral Architecture as the basis for our operator structure, we present a general approach to the computation of adaptive coarse scale Laplacian operators for use on hexagonal pixel-based images. We evaluate the proposed operators using simulated hexagonal images and demonstrate improved performance when compared with rectangular Laplacian operators such as Marr-Hildreth.

关键词： Spirals Laplace equations Pixel Image edge detection Finite element methods Computer architecture

来源：评论

学校读者我要写书评

暂无评论

H∞ output feedback control for descriptor networked systems with multiple packet dropouts

H∞ output feedback control for descriptor networked systems...

引用

2010 8th World Congress on intelligent Control and Automation, WCICA 2010

作者： Wang, Jia Yang, Fuwen Han, Qinglong Wu, Wang Intelligent and Networked Systems School of Computing Sciences Central Queensland University Bruce Highway Rockhampton QLD Australia College of Electrical Engineering and Automation Fuzhou University Fuzhou 350108 China School of Information Science and Engineering East China University of Science and Technology Shanghai 200237 China

ISBN: (纸本)9781424467129

In this paper, the control problem with both multiple measurement and control packets dropouts for descriptor systems is investigated. Firstly, the descriptor systems are transferred to the normal systems. Then two independent Bernoulli distributed white sequence are used to describe the multiple measurement and control packet dropouts. An H∞ output controller is designed to make the systems stable and achieve the prescribed H∞ disturbance attenuation level. A sufficient condition for the existence of the dynamic output feedback controller is presented via matrix inequalities. The extended CCLM algorithm is applied to solve the parameters of the controller. Finally, an example is provided to illustrate the usefulness of the design method. © 2010 IEEE.

关键词： Linear matrix inequalities

来源：评论

学校读者我要写书评

暂无评论

TOWARDS OBJECTIFYING INFORMATION HIDING

TOWARDS OBJECTIFYING INFORMATION HIDING

引用

IEEE International Conference on Acoustics, Speech, and Signal Processing

作者： Abbas Cheddad Joan Condell Kevin Curran Paul Mc Kevitt School of Computing and Intelligent Systems Faculty of Computing and Engineering University of Ulster Derry BT48 7JL

ISBN: (纸本)9781424442959

In this paper, the concept of object-oriented embedding (OOE) is introduced into information hiding in general and particularly to steganography which is the science that involves undetectable communication of secret data in an appropriate multimedia carrier. The proposal takes advantage of computer vision to orient the embedding process. Although, any existing algorithm can benefit from this technique to enhance its performance against steganalysis attacks, however this work also considers a new embedding algorithm in the wavelet domain using the Binary Reflected Gray Code (BRGC). In the realm of information hiding, one wing focuses on robustness, i.e., watermarking, and another wing focuses on imperceptibility, i.e., steganography. This work advocates for a new steganographic model that meets both robustness as well as imperceptibility. Resilience against common steganalysis attacks including the 274-D merged Markov and DCT features while surviving various image processing manipulations are reported. A neural network classifier was trained with features derived from 400 images. Comparisons with existing systems will also be highlighted.

关键词： Image processing Digital communication Wavelet transforms Digital communication wavelet transforms Image processing BRGC Steganography backdoor data Wings images Wavelet domain embedding Watermarking computer vision

来源：评论

学校读者我要写书评

暂无评论

Prosthesis grasp reflex via peripheral nerve control — An in vitro study

Prosthesis grasp reflex via peripheral nerve control — An i...

引用

IEEE International Conference on Cybernetic intelligent systems, CIS

作者： German D. Valderrama-Gonzalez Mark N. Gasson Kevin Warwick Benjamin J. Whalley School of Computing and Intelligent Systems University of Ulster Londonderr UK School of Systems Engineering University of Reading Reading UK School of Pharmacy University of Reading Reading UK

Here we present an economical and versatile platform for developing motor control and sensory feedback of a prosthetic hand via in vitro mammalian peripheral nerve activity. In this study, closed-loop control of the grasp function of the prosthetic hand was achieved by stimulation of a peripheral nerve preparation in response to slip sensor data from a robotic hand, forming a rudimentary reflex action. The single degree of freedom grasp was triggered by single unit activity from motor and sensory fibers as a result of stimulation. The work presented here provides a novel, reproducible, economic, and robust platform for experimenting with neural control of prosthetic devices before attempting in vivo implementation.

关键词： Electrodes Robot sensing systems Prosthetic hand In vitro Noise In vivo

来源：评论

学校读者我要写书评

暂无评论

H∞ Output Feedback Control for Descriptor Networked systems with Multiple Packet Dropouts

H∞ Output Feedback Control for Descriptor Networked Systems...

引用

The 8th World Congress on intelligent Control and Automation(第八届智能控制与自动化世界大会 WCICA 2010)

作者： Jia Wang Fuwen Yang Qinglong Han Wu Wang Intelligent and Networked Systems and School of Computing Sciences Central Queensland University Bru School of Information Science and Engineering East China University of Science and Technology Shangh Intelligent and Networked Systems and School of Computing Sciences Central Queensland University Bru College of Electrical Engineering and Automation Fuzhou University Fuzhou 350108 China

关键词： Educational institutions Output feedback Algorithm design and analysis Automation Design methodology Networked control systems

来源：评论

学校读者我要写书评

暂无评论

PlayPhysics: An emotional games learning environment for teaching physics

PlayPhysics: An emotional games learning environment for tea...

引用

4th International Conference on Knowledge Science, engineering and Management, KSEM 2010

作者： Muñoz, Karla Kevitt, Paul Mc Lunney, Tom Noguez, Julieta Neri, Luis Intelligent Systems Research Centre Faculty of Computing and Engineering University of Ulster Magee Derry/Londonderry BT48 7JL Northern Ireland United Kingdom School of Engineering and Architecture Tecnológico de Monterrey Col. Ejidos de Huipulco Tlalpan Mexico City C.P. 14380 Mexico

ISBN: (纸本)3642152791

To ensure learning, game-based learning environments must incorporate assessment mechanisms, e.g. intelligent Tutoring systems (ITSs). ITSs are focused on recognising and influencing the learner's emotional or motivational states. This research focuses on designing and implementing an affective student model for intelligent gaming, which reasons about the learner's emotional state from cognitive and motivational variables using observable behaviour. A Probabilistic Relational Models (PRMs) approach is employed to derive Dynamic Bayesian Networks (DBNs). The model uses the Control-Value theory of 'achievement emotions' as a basis. A preliminary test was conducted to recognise the students' prospective-outcome emotions with results presented and discussed. PlayPhysics is an emotional games learning environment for teaching Physics. Once the affective student model proves effective it will be incorporated into PlayPhysics' architecture. The design, evaluation and postevaluation of PlayPhysics are also discussed. Future work will focus on evaluating the affective student model with a larger population of students, and on providing affective feedback. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Hedge detection and scope finding by sequence labeling with normalized feature selection

CoNLL-2010: Shared Task - Fourteenth Conference on Computat...

引用

CoNLL-2010: Shared Task - Fourteenth Conference on Computational Natural Language Learning, Proceedings of the Shared Task 2010年 92-99页

作者： Zhang, Shaodian Zhao, Hai Zhou, Guodong Lu, Bao-Liang Center for Brain-Like Computing and Machine Intelligence Dept of Computer Science and Engineering Shanghai Jiao Tong University China MOE-Microsoft Key Laboratory for Intelligent Computing and Intelligent Systems Shanghai Jiao Tong University China School of Computer Science and Technology Soochow University China

This paper presents a system which adopts a standard sequence labeling technique for hedge detection and scope finding. For the first task, hedge detection, we formulate it as a hedge labeling problem, while for the second task, we use a two-step labeling strategy, one for hedge cue labeling and the other for scope finding. In particular, various kinds of syntactic features are systemically exploited and effectively integrated using a large-scale normalized feature selection method. Evaluation on the CoNLL-2010 shared task shows that our system achieves stable and competitive results for all the closed tasks. Furthermore, post-deadline experiments show that the performance can be much further improved using a sufficient feature selection. © 2010 Association for Computational Linguistics.

关键词： Feature Selection

来源：评论

学校读者我要写书评

暂无评论

The distributed maximum power point tracking method and application in the PV grid-connected generation

The distributed maximum power point tracking method and appl...

引用

International Conference on intelligent System Design and engineering Application (ISDEA)

作者： Zhao, Tingting Ju, Zhenhe Wang, Hongjiang Wei, Xiaopeng Li, Xiaoxiao Shi, Zhang School of Management Dalian University of Technology Dalian China New Energy Center Shenyang Institute of Engineering Shenyang China Department of Information and Engineering Shenyang Institute of Engineering Shenyang China Key Laboratory of Advanced Design and Intelligent Computing Ministry of Education Dalian University Dalian China Department of Study Liaoning Solar Energy R and D Co. Ltd. Shenyang China Institute of Systems Engineering Northeastern University Shenyang China

ISBN: (纸本)9780769542126

In the system of the PV grid-connected generation, because of the dispersion of the PV panel, difference of the sun radiation condition and the shadow of a part of the PV panel, they will cause the serious loss of energy for the parallel PV panel. In order to overcoming energy loss and raise the efficiency of the PV system, a new maximum power point tracking method called distributed variable step duty ratio perturb method is put forward. The distributed MPPT method overcomes the shortcomings to generate electricity quantity to descend because of the dispersion of the PV panel. The variable step duty ratio perturbing method speed quickly and is more suitable for this kind of distributed generation system. The hardware adopts DC/DC electric circuit to regulate PWM duty ratio. The software adopts TMS320-2812. An example is given to show that this method is able to realize distributed MPPT. In addition, the calculation speed of the approach is quick, accuracy of the approach is better, and the system has a high stability. © 2010 IEEE.

关键词： Maximum power point trackers

来源：评论

学校读者我要写书评

暂无评论

Modular fuzzy control with input shaping technique for transformation of two-wheeled wheelchair to four-wheeled mode

Modular fuzzy control with input shaping technique for trans...

引用

IEEE Symposium on Industrial Electronics & Applications (ISIEA)

作者： Salmiah Ahmad M. O. Tokhi N. H. Siddique Department of Mechatronics International Islamic University Malaysia Kuala Lumpur Malaysia Automatic Control & Systems Engineering University of Sheffield Sheffield UK School of Computing & Intelligent System University of Ulster UK

This paper presents a mechanism for wheelchair transformation from two-wheeled upright position to four-wheeled position using a modular fuzzy logic control (MFC) approach. A wheelchair model that can be operated in four-wheeled and two-wheeled modes has been developed within the Visual Nastran environment and integrated with Simulink for control purposes. A multi-input multi-output modular fuzzy logic control configuration is designed and implemented on the wheelchair model. To improve the system performance, an input shaping technique is augmented inside the feedback loop. It is shown that the shaped signals have improved the system performance with promising results.

关键词： Wheelchairs Niobium Wheels Mathematical model Torque Fuzzy control Conferences

来源：评论

学校读者我要写书评

暂无评论

Development of intelligent robot hand using proximity, contact and slip sensing

Development of intelligent robot hand using proximity, conta...

引用

IEEE International Conference on Robotics and Automation (ICRA)

作者： Hiroaki Hasegawa Yoshitomo Mizoguchi Kenjiro Tadakuma Aiguo Ming Masatoshi Ishikawa Makoto Shimojo Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications Chofu Tokyo Japan Harmonic Drive Systems Inc. Japan Department of Mechanical Engineering Graduate School of Engineering Osaka University Suita Japan Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Bunkyo Tokyo Japan

ISBN: (纸本)9781424450381;9781424450404

To achieve the skillful task like the human, many researchers have been working on robot hand. An interaction with vision and tactile information are indispensable for realization of skillful tasks. In the existing research, the method using a camera to get the vision information is often found. But, in the boundary area of a non-contact phase and a contact phase, there are problem that lack of sensor information because the influence of occlusion comes up to surface. We devise to introduce the proximity sensor in this area. And we call the robot hand which is equipped with proximity, tactile and slip sensor “intelligent robot hand”. In this research, we show the constitution example of the intelligent robot hand and propose the method to realize Pick&Place as concrete task.

关键词： intelligent robots Robot sensing systems intelligent sensors Humans Humanoid robots Robot vision systems Cameras Tactile sensors Constitution Concrete

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：