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International Conference on Information and Automation for Sustainability (ICIAfS)

作者： Prashan Premaratne Sabooh Ajaz Ravi Monaragala Nalin Bandara Malin Premaratne School of Electrical Computer and Telecommunications Engineering University of Wollongong North Wollongong NSW Australia Centre for Research and Development Army Cantonment Panagoda Sri Lanka Advanced Computing and Simulation Laboratory (AXL) Department of Electrical and Computer Systems Engineering Monash University Clayton VIC Australia

The research presented here is an attempt to use a very basic, low cost and non-specialized microcontroller for image processing tasks. The applications emanating from such an attempt will result in inexpensive face detection, intelligent motion sensors to low cost vehicle counting systems. We have been able to develop a system based on Microchip dsPIC microcontroller that implements edge detection of still images. Hardware-based signal processors such as Texas Instrument DSP (Digital Signal Processing) or Field Gate Arrays (FPGA) are generally an expensive solution for image processing applications. On the other hand a conventional 8-bit microcontroller doesn't have enough capability to handle memory intensive DSP algorithms. In this regard, Microchip offers a tradeoff between cost and performance. Although performance does not compete with TI DSPs or FPGAs, the proposed system yet provides a sound platform to perform Signal processing directly on embedded hardware. Our research presents a preliminary approach to perform any type of image processing task using microchip 16-bit Microcontrollers and 16-bit digital signal controllers. Even though this attempt is aimed at Edge Detection, the research opens up possibilities for numerous other algorithms of signal and image processing that can be implemented using the same low cost hardware.

关键词： Image edge detection Hardware Cameras Noise Pixel Libraries

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Dynamic hand gesture recognition system using moment invariants

Dynamic hand gesture recognition system using moment invaria...

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International Conference on Information and Automation for Sustainability (ICIAfS)

作者： Zhengmao Zou Prashan Premaratne Ravi Monaragala Nalin Bandara Malin Premaratne School of Electrical Computer and Telecommunications Engineering University of Wollongong North Wollongong NSW Australia Centre for Research and Development Army Cantonment Panagoda Sri Lanka Advanced Computing and Simulation Laboratory (AXL) Department of Electrical and Computer Systems Engineering Monash University Clayton VIC Australia

We have developed a dynamic hand gesture recognition system that can simplify the way humans interact with computers and many other non-critical consumer electronic equipment. The proposed system is based on the well-known “Wave Controller” technology developed at the University of Wollongong and will revolutionize video gaming and consumer electronics control interfaces. Currently, computer interfacing mainly involves keyboard, mouse, joystick or gaming wheels and occasionally voice recognition for user input. These modes of interaction have restrained the artistic ability of many users, as they are required to respond to the computer through pressing buttons or moving other apparatus. Voice recognition is seen as unreliable and impractical in areas where more than one user is present. All these drawbacks can be tackled by using a reliable hand gesture recognition system that facilitates interaction between users and computers and other consumer electronic equipment in real time. This will further enhance the user experience as users no longer have any physical connection to the equipment being controlled. This system can also be extended to a sign language system for the benefit of the disabled including those with speech disabilities.

关键词： Gesture recognition Computers Support vector machines Real time systems Classification algorithms Consumer electronics Feature extraction

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HUREX - Experiment of use and prioritization of UAS in hurricane disaster response

HUREX - Experiment of use and prioritization of UAS in hurri...

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作者： Maroney, David R. Harkin, Michael T. Litwin, Laurie S. Curtiss, Jonathan A. Bigbee, Anthony J. Flournoy, Richard D. Gawron, Valerie J. MITRE Corporation McLean VA 22102 United States Navigation and Unmanned Air Systems Department M/S N670 United States ATM/CNS Research Computing Department M/S N420 United States Modeling and Simulation Engineering Department M/S H613 United States Advanced Architectural Technology and Solutions Department M/s H200 United States Agile Engineering and Interoperability Department M/S COLO United States Modeling and Simulation Engineering Department M/S M230 United States

ISBN: (纸本)9781563479809

Requests for the use of Unmanned Aerial systems (UAS) in Hurricane Disaster Response are currently submitted to the Federal Aviation Administration (FAA) without prioritization or feedback on the status of the UAS mission. The MITRE Corporation conducted an experiment using real-world operators to explore cross-agency issues in an environment that enabled quantification of multi-agency mission effectiveness. This hurricane experiment (HUREX) explored the cross-agency roles of those involved in the prioritization and use of UAS for infrastructure surveillance, storm science, and other tasks. Three vignettes were used to test the interactions as they are understood today and to introduce two new concepts: the notion of a central adjudicator and the use of a collaboration tool to assist with information exchange and decision-making. Post-experiment analyses confirmed the usefulness of these concepts and resulted in several recommendations, both for the near term and for the longer term. Collectively, these changes amount to a paradigm shift in how UAS operations are managed, away from the current stove-piped processes towards a common structured process, with adjudication as the central concept. Copyright © 2009 by The MITRE Corporation.

关键词： Hurricanes

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Optimal processes of chaotic uncertainty correction

Optimal processes of chaotic uncertainty correction

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IEEE Conference on Control Technology and Applications (CCTA)

作者： Viktor Gorelik Yuri Talagaev Andrey Tarakanov Simulation Systems Department Computing Center Russian Academy of Science Moscow Russia Chair of Applied Informatics and Mathematics Balashov Institute of Saratov State University Balashov Russia Department of Physics and Mathematics Orisoglebsk State Teachers Training Institute Borisoglebsk Russia

The object of our consideration is a class of the chaotic dynamic systems. As every subsequent state of the system in its phase space is uncertain, we use the term ldquochaotic uncertaintyrdquo. Such uncertainty is often unwanted and needs the system states control problem (optimal if possible) to eliminate the uncertainty. In the paper the problem is solved by the application of the two-stage correction scheme of the system parameters on the basis of maximum principle relations.

关键词： Chaos Uncertainty Control systems Nonlinear dynamical systems Optimal control Mathematics Robust control Nonlinear systems Control system analysis Process control

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Novel directions in Raman amplifier research

Novel directions in Raman amplifier research

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International Conference on Information, Communications and Signal Processing

作者： V. Kalavally M. Premaratne I. Rukhlenko T. Win P. Shum M. Tang Department of Electrical and Compute Systems Engineering School of Engineering Monash University Bandar Sunway Selangor Darul Ehsan Malaysia Advanced Computing and Simulation Laboratory (AXL) Department of Electrical and Computer Systems Engineering Monash University Clayton VIC Australia School of Electrical and Electronics Engineering Nanyang Technological University Singapore Singapore

ISBN: (纸本)9781424446568

Raman amplifiers provide a simple and yet powerful platform for optical amplification needs in modern optical communication networks. This paper reviews recent progress in Raman amplifier research and highlights some non-conventional future of the field. Although the low-noise and wavelength-independent gain properties of Raman amplifiers have been long exploited in optical communication networks, researchers strive to tap into the huge potential of non-linear optics to improve reach and performance. Alternative approaches used to enhance the quality of Raman amplified networks such as the use of novel pumping schemes that can ensure uniformity in gain and noise performance are discussed. Finally, the advances in research on Raman amplification in monolithically integrated silicon waveguides which should fuel wide deployment in the coming years are presented.

关键词： Stimulated emission Optical amplifiers Semiconductor optical amplifiers Optical fiber communication Performance gain Optical noise Optical waveguides Power amplifiers Low-noise amplifiers Nonlinear optics

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Green supercomputing comes of age

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IT Professional 2008年第1期10卷 17-23页

作者： Feng, Wu-Chun Feng, Xizhou Ge, Rong Department of Computer Science and Electrical and Computer Engineering Virginia Tech. Network Dynamics and Simulation Science Laboratory Virginia Tech. Center for High-End Computing Systems Virginia Tech.

Energy-efficient (green) supercomputing has evolved to improve system reliability and provide better availability and productivity. Green Destiny supercomputing system is a Linux-based cluster that uses low-power components whose performance could be optimized for supercomputing. Low-power supercomputing focuses on energy efficiency at system integration time, selects low-power chips as the building blocks for power reduction and system reliability, and achieves better performance by scaling up to a larger number of processors. Researchers have implemented various power-aware software prototypes for commodity supercomputing starting with cluster of high-performance, high-power processors that support mechanism called dynamic voltage and frequency scaling (DVFS). Various approaches for parallel supercomputing nodes are studied by aiming execution phases that are not on the critical execution path.

关键词： Supercomputers

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WCE 2010 - World Congress on Engineering 2010: Preface

WCE 2010 - World Congress on Engineering 2010

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WCE 2010 - World Congress on Engineering 2010 2010年 1卷 l页

作者： Korsunsky, Alexander M. Hunter, Andrew Hukins, David W.L. Gelman, Len Hogger, Christopher John Ceglarek, Darek J. Payne, Stephen Ao, S.I. Ahmad, Munir Alexandrou, Ioannis Al-Nuaimy, Waleed Amavasai, Bala P. An, Yoon-Young Ariwa, Ezendu Arteche, Josu Audrino, Francesco Ayesh, Aladdin Baber, Chris Bailey, Colin Balkan, Naci Barria, Javier Bartosova, Jitka Benkrid, Khaled Bleijs, Hans Bluck, Michael Bose, Indranil Bouzas, Paula R. Braiden, Paul M. Brdys, Mietek Burriesci, Gaetano Cannataro, Mario Carvalho, Alexandre Chang, Chin-Chen Chen, Dechang Chen, Guanghui George Chen, Yuh-Shyan Chiclana, Francisco Cooke, Alastair Das, Diganta Bhusan Davis, Darryl N. Dayoub, Iyad Raman, Suash Deb C. V. Demetriou, Ioannis C. Devai, Frank Dilmaghani, Reza S. Dini, Daniele Drikakis, Dimitris Durkan, Colm Durodola, John Etebar, Kamran Fenn, Peter Figueiredo, Adelaide Florou, Giannoula Freear, Steven Gabrys, Bogdan Galbraith, Graham H. Gaskell, Philip H. Gaura, Elena Ge, Zhao-Qiang Ghafouri-Shiraz, H. Ghavami, Mohammad Giannopoulos, Kostas Pruneda Gonzalez, Rosa Eva Gracia, Angel Marin Grecos, Christos Guan, Lin Gulpinar, Nalan Guo, Renkuan Guo, Yakun Hardalupas, Y. He, Li Herrero, Josep R. Hicks, Ben James Hines, Evor L. Hodgson, Simon Horsfall, Alton Hosein, Patrick Hu, Fun Hu, Osheng Ijomah, Winifred Ming, Ji James, Anne Jancovic, Peter Jhumka, Arshad Kamareddine, Fairouz Kannan, Rajgopal Karsligil, M. Elif Katircioglu, Salih Turan Khalid, Allali Kokossis, Antonis Kontis, Konstantinos Kulekci, M. Oguzhan Laukaitis, Algirdas Leeson, Mark Limbachiya, Mukesh C. Li, Layuan Li, Lin Lin, Phone Ling, Wing-Kuen Macias Lopez, Elsa M. Lovas, Terese Luglio, Michele Mainardi, Stefano Mahanti, Prabhat K. Marinos, Ioannides Maropoulos, Paul Mativenga, Paul Mavrommatis, George Meintanis, S.G. Meisel, Yezid Donoso Mekid, Samir Mias, Christos Morin, Annie Musliu, Nysret Nabhani, Farhad Naguib, Raouf Olatunbosun, Oluremi Olsen, Sarah Ozalp, A. Alper Pang, Ai-Chun Pao, William K.-S. Piera, Miquel Angel Pinciroli, Francesco Popescu, Theodor D. Power Trinity College Department of Engineering Science University of Oxford United Kingdom Vision and AI Research Group Lincoln University United Kingdom Department of Computing and Informatics Lincoln University United Kingdom Department of Bio-medical Engineering University of Birmingham United Kingdom Department of Mechanical and Manufacturing Engineering University of Birmingham United Kingdom Department of Vibro-Acoustic Monitoring United Kingdom Condition Monitoring Technical Committee British Institute of NDT United Kingdom Centre of Vibro-Acoustics and Fatigue United Kingdom Cranfield University United Kingdom Department of Computing Imperial College London United Kingdom International Manufacturing Centre University of Warwick United Kingdom Department of Industrial and Systems Engineering University of Wisconsin-Madison United States University Lecturer in BioMedical Engineering United Kingdom Degrees Keble College Department of Engineering Science University of Oxford United Kingdom Oxford University Computing Laboratory University of Oxford United Kingdom Harvard School of Engineering and Applied Sciences Harvard University United States University of Teesside United Kingdom University of Liverpool United Kingdom Sheffield Hallam University United Kingdom Electronics and Telecommunications Research Institute Korea Republic of London Metropolitan University United Kingdom Universidad del Pais Vasco Euskal Herriko Unibertsitatea Spain University of St. Gallen Switzerland De Montfort University United Kingdom University of Birmingham United Kingdom University of Manchester United Kingdom University of Essex United Kingdom Imperial College London United Kingdom University of Economics Czech Republic University of Edinburgh United Kingdom University of Leicester United Kingdom University of Hong Kong Hong Kong Hong Kong University of Granada Spain Newcastle University United Kingdom University College London United Kingdom University Magna Graecia of Catanza

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A novel data distortion approach via selective SSVD for privacy protection

引用

International Journal of Information and Computer Security 2008年第1期2卷 48-70页

作者： Wang, Jie Zhang, Jun Xu, Shuting Zhong, Weijun Laboratory for High Performance Scientific Computing and Computer Simulation Department of Computer Science University of Kentucky Lexington KY 40506-0046 United States Department of Computer Information Systems Virginia State University Petersburg VA 23806 United States Department of Management Sciences and Engineering Southeast University Nanjing 210096 China

Data privacy preservation has become one of the major concerns in the design of practical data-mining applications. In this paper, a novel data distortion approach based on structural partition and Sparsified Singular Value Decomposition (SSVD) technique is proposed. Three schemes are designed to balance privacy protection in centralised datasets and mining accuracy. Some metrics are used to evaluate the performance of the proposed new strategies. Data utility of the three proposed schemes is examined by a binary classification based on the support vector machine. Furthermore, we examine three sparsification strategies. The effect of method parameters on data distortion level and utility is also studied experimentally. Our experimental results on synthetic and real datasets indicate that, in comparison with standard data distortion techniques, the proposed schemes are efficient in balancing data distortion level and data utility. They afford a feasible solution with a good promise for mining accuracy and a significant reduction in the computational cost from SVD. Copyright © 2008 Inderscience Enterprises Ltd.

关键词： Data privacy

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Multiple scale analysis of semiconductor amplifiers

Multiple scale analysis of semiconductor amplifiers

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International Conference on Advanced Optoelectronics and Lasers (CAOL)

作者： Malin Premaratne Advanced Computing and Simulation Laboratory (AXL) Department of Electrical and Computer Systems Engineering Monash University Clayton VIC Australia

Short-pulse propagation in optical amplifiers has been widely studied for applications in optical signal processing and optical communications areas. Even though it is possible to integrate differential equations numerically, such implementations may not provide adequate insight into the device operation. We propose a systematic way to construct analytical solutions under pulsed conditions and show excellent agreement with numerically integrated results. Our approach makes use of the multiple-scale technique in which different time scales associated with physical processors are cleverly used to partition amplifier response to different regions where analytical solution can be found using simple techniques.

关键词： Semiconductor optical amplifiers Pulse amplifiers Optical pulses Optical pulse shaping Stimulated emission Optical signal processing Optical amplifiers Nonlinear optics Space vector pulse width modulation Computer crime

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Multiple-scale Analysis of Optical Amplifiers

Multiple-scale Analysis of Optical Amplifiers

引用

IEEE PhotonicsGlobal@Singapore, IPGC

作者： Malin Premaratne Advanced Computing and Simulation Laboratory (AXL) Department of Electrical and Computer Systems Engineering Monash University Clayton VIC Australia

关键词： Stimulated emission Semiconductor optical amplifiers Optical amplifiers Pulse amplifiers Optical pulses Optical signal processing Space vector pulse width modulation Optical pulse shaping Optical computing Atom optics

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