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IEEE International Workshop on Cellular Nanoscale Networks and their Applications, (CNNA)

作者： Zoltan Nagy Laszlo Kek Zoltan Kincses Andras Kiss Peter Szolgay Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Department Information Technology Pázmány Péter Catholic University Budapest Hungary Department Image Processing and Neurocomputing University of Pannonia Veszprem Hungary

Array computers can be useful in the solution of numerical spatiotemporal problems such as partial differential equations (PDEs). IBM has recently introduced the cell broadband engine (Cell BE) Architecture, which contains 8 identical vector processors in an array structure. In the paper the implementation of the 3-D Princeton Ocean Model on the Cell BE is discussed. The area/speed/power tradeoffs of our solution and different hardware implementations are also compared.

关键词： computer architecture Microprocessors Registers Arrays Mathematical model Random access memory Equations

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A unifying framework for spectral analysis based dimensionality reduction

A unifying framework for spectral analysis based dimensional...

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International Joint Conference on Neural Networks (IJCNN)

作者： Tianhao Zhang Dacheng Tao Xuelong Li Tie Yang Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University Shanghai China Biometrics Research Centre Department of Computing Hong Kong Polytechnic University Hong Kong China School of Computer Science and Information Systems University of London UK

Past decades, numerous spectral analysis based algorithms have been proposed for dimensionality reduction, which plays an important role in machine learning and artificial intelligence. However, most of these existing algorithms are developed intuitively and pragmatically, i.e., on the base of the experience and knowledge of experts for their own purposes. Therefore, it will be more informative to provide some a systematic framework for understanding the common properties and intrinsic differences in the algorithms. In this paper, we propose such a framework, i.e., ldquopatch alignmentrdquo, which consists of two stages: part optimization and whole alignment. With the proposed framework, various algorithms including the conventional linear algorithms and the manifold learning algorithms are reformulated into a unified form, which gives us some new understandings on these algorithms.

关键词： Algorithm design and analysis Optimization Spectral analysis Weight measurement Classification algorithms Artificial neural networks Level measurement

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FPGA based emulated-digital CNN-UM implementation with GAPU

FPGA based emulated-digital CNN-UM implementation with GAPU

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IEEE International Workshop on Cellular Nanoscale Networks and their Applications, (CNNA)

作者： Zsolt Voroshazi Andras Kiss Zoltan Nagy Peter Szolgay Department of Image Processing and Neurocomputing University of Pannonia Veszprem Hungary Faculty of Information Technology Pázmány Péter Catholic University Hungary Cellular Sensory and Wave Computing Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

The paper addresses the issue of implementing a GAPU (global analogic programming unit) on the emulated-digital CNN-UM (cellular neural/nonlinear networks universal machine) architecture. It has been embedded with a flexible Xilinx MicroBlaze soft-core processor to take full advantage of the joint computing power of high-speed arithmetics and programmability. The GAPU implementation accelerates the processing performance of the Falcon architecture by decreasing the I/O communication and it also provides a stand-alone operation, which is capable of controlling complex sophisticated analogic CNN algorithms similar to various visual microprocessors, such as the ACE16k and the Q-Eye in the Bi-i, and eye-RIS cellular vision systems. Our primary aim was to implement an FPGA-based emulated-digital CNN-UM with embedded GAPU for computation intensive, real image-processing tasks.

关键词： Field programmable gate arrays computer architecture Process control Random access memory Vector processors Mathematical model Computational modeling

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A standalone FPGA based emulated-digital CNN-UM system

A standalone FPGA based emulated-digital CNN-UM system

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IEEE International Workshop on Cellular Nanoscale Networks and their Applications, (CNNA)

作者： Zsolt Voroshazi Andras Kiss Zoltan Nagy Peter Szolgay Department of Image Processing and Neurocomputing University of Pannonia Veszprem Hungary Faculty of Information Technology Pázmáany Péter Catholic University Hungary Cellular Sensory and Wave Computing Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

The Falcon emulated-digital CNN-UM (cellular neural/nonlinear networks universal machine) architecture has been extended by an embedded GAPU (global analogic programming unit) using the flexible Xilinx MicroBlaze soft-core processor to take full advantage of the joint computing power of high-speed distributed arithmetics and programmability. The implemented GAPU provides a stand-alone operation, which is capable of controlling complex sophisticated CNN analogic algorithms similar to various visual microprocessors, such as the ACE4k, ACE16k, and Bi-i vision systems. The quality of the embedded GAPU implementation is demonstrated by analogic algorithms, mainly in which sequences of template operations are required.

关键词： Field programmable gate arrays computer architecture image processing Mathematical model Organizing computers Cellular neural networks

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Impact of anthropogenic disturbance on a mangrove forest assessed by a id cellular automaton model using lotka-volterra-type competition

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International Journal of Design and Nature and Ecodynamics 2008年第4期3卷 296-320页

作者： Obade, P.T. Koedam, N. Soetaert, K. Neukermans, G. Bogaert, J. Nyssen, E. Van Nedervelde, F. Berger, U. Dahdouh-Guebas, F. Belgium Kenya Marine and Fisheries Research Institute Kenya Netherlands Belgium Department of Electronics and Informatics Image Processing and Machine Vision Group VUB Belgium Département de Biologie des Organismes Faculté des Sciences Complexité et Dynamique des Systèmes Tropicaux Belgium Department of Forest Biometry and Systems Analysis Institute of Forest Growth and Forest Computer Sciences Technische Universität Dresden Germany

Mangrove forests are ecologically and economically important and frequently dominating protected coastal areas in the tropics and subtropics at suitable intertidal zones and are often subjected to disturbances that disrupt the structure of an ecosystem, that change resource availability and that create patterns in vegetation by producing a mosaic of serai stages that ecologists have long recognised as important to landscape-level patch mosaics. Several good reasons justify the need for pursuing a predictive understanding of the ecology of mangrove species competition including the role of disturbance events and the aftermath. A predictive understanding can challenge our assumptions concerning the factors that control plant distribution and abundance and provide techniques for predicting rates of species change ranges in response to disturbances. The aim of this study was to evaluate and predict the impact of canopy disturbances on Gazi Bay mangrove forests and the subsequent vegetation patterns both spatially and temporally. The use of a simple 1D cellular automaton provided a detailed and nearly comprehensive parameterisation of the model by forest structure parameters belonging to the standard measurements of mangrove field surveys. In the study presented, the field data were obtained for disturbance impacts at various spatial scales considering not only the spatial extent of the disturbance but also its particular location. For this, multiple sampling transects were selected a priori, based on the vegetation patterns observed on Quickbird satellite image (2002) of Gazi, to reflect major ecological zones and vegetation transitions in space. Earlier field studies already revealed different population trajectories in some cases for the same pairwise species interactions, which are consistent with the hypothesis that different scales of disturbances may affect succession trends. Simulation experiments supported these findings by demonstrating that varying disturbance

关键词： Forecasting

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Design and implementation of a virtual demonstration system for furniture

Design and implementation of a virtual demonstration system ...

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China-Ireland International Conference on Information and Communications Technologies, CIICT 2007

作者： Wang, Yigang Ye, Lexiao Ding, Jianhao Institute of Computer Graphics and Image Processing Hangzhou Dianzi University Hangzhou 310018 China

ISBN: (纸本)9780863418273

This paper designs and implements a virtual demonstration system for furniture. First, in order to let users virtually dispose furniture, showing the best effect of furniture in the virtual environment, we model different series of a company's furniture and common houses, and create panoramic pictures and transition videos with 3D Max and image processing tools, realizing walkthrough of the furnished house. Secondly, our system adopts Open Scene Graph(OSG)platform to realize virtual demonstration of the furniture. Users can add?delete and move the 3D furniture in the virtual houses. Third, the system supports furniture demonstration in a real house. Users can import the photos of their own houses, and then dispose the selected furniture on these photos, to see the whole effect of furniture in their own real houses. The experiment result shows that the system makes customers be personally on the scene and can boost up users' purchase desire.

关键词： Houses

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Design and implementation of a collaborative 3D design system

Design and implementation of a collaborative 3D design syste...

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China-Ireland International Conference on Information and Communications Technologies, CIICT 2007

作者： Wang, Yigang Huang, Pengcheng Institute of Computer Graphics and Image Processing Hangzhou Dianzi University Hangzhou Zhejiang Province 310018 China

ISBN: (纸本)9780863418273

The team design becomes increasingly important to future manufacturing industry. This paper focus on the key issues of collaborative 3D design system through Internet or Intranet in CSCW(computer Support for Cooperative Work). In the paper, we propose our solutions of concurrency control tactics, collaboration aware, multi-mode communications network management, synchronous real-time protection in a collaborative 3D design system. Based on Open Source Projects-Open CASCADE and Adaptive Communication Environment (ACE), we implement our collaborative 3D design system, and experiments show our system can meet the requirements of some 3D cooperative modeling design applications.

关键词： Intranets

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Two-dimensional Compressible Flow Simulation on Emulated Digital CNN-UM

Two-dimensional Compressible Flow Simulation on Emulated Dig...

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IEEE International Workshop on Cellular Nanoscale Networks and their Applications, (CNNA)

作者： Sandor Kocsardi Zoltan Nagy Arpad Csik Peter Szolgay Department of Image Processing and Neurocomputing University of Pannonia Veszprem Hungary Cellular Sensory and Wave Computing Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Department of Mathematics and Computational Sciences Sźechenyi István University Gyor Hungary Faculty of Information Technology Pázmány Péter Catholic University Budapest Hungary

In the area of mechanical, aerospace, chemical and civil engineering the solution of partial differential equations (PDEs) has been one of the most important problems of mathematics for a long time. In this field, one of the most exciting areas is the simulation of fluid flow, which involves for example problems of air, sea and land vehicle motion. In this paper a CNN-UM based solver of 2D inviscid, adiabatic, compressible fluids will be presented. The governing equations are solved by using first- and second-order numerical methods. Unfortunately the necessity the coupled multi-layered computational structure with non-linear, space-variant templates does not make it possible to utilize the huge computing power of the analog CNN-UM chips. To improve the performance of our solution emulated digital CNN-UM implemented on FPGA has been used. Properties of the implemented specialized architecture is examined in terms of area, speed and accuracy.

关键词： Mathematical model Equations computer architecture Microprocessors Field programmable gate arrays Computational modeling Magnetic cores

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House layout and furnishing using VR technologies

House layout and furnishing using VR technologies

引用

China-Ireland International Conference on Information and Communications Technologies, CIICT 2007

作者： Ding, Jianhao Wang, Yigang Institute of Computer Graphics and Image Processing Hangzhou Dianzi University Hangzhou 310018 Zhejiang Province China

ISBN: (纸本)9780863418273

This paper presents some new virtual reality methods for house layout and furnishing to realize interactive high realistic presentation of a furnished house. Virtual houses and furniture are built from actual schedule drawing data by 3D-modeling technology. This paper mainly proposes four ways of demonstrating virtual house on Internet, including indoor virtual tour, fix-position panorama browse, interactively indoor touring and globe view of house layout. Taking advantage of these ways, customers can navigate in the virtual house environment through Internet, observing the layout of houses from different angles and performing some interactive actions to show house style clearly.

关键词： Virtual reality

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Experimental Result on Supersonic Flow Simulation on Emulated Digital CNN-UM

Experimental Result on Supersonic Flow Simulation on Emulate...

引用

IEEE International Workshop on Cellular Nanoscale Networks and their Applications, (CNNA)

作者： Sandor Kocsardi Zoltan Nagy Arpad Csik Peter Szolgay Department of Image Processing and Neurocomputing University of Pannonia Veszprem Hungary Cellular Sensory and Wave Computing Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Department of Mathematics and Computational Sciences Széchenyi István University Gyor Hungary Faculty of Information Technology Pázmány Péter Catholic University Budapest Hungary

关键词： Mathematical model Fluids computer architecture Computational modeling Equations Arrays Atmospheric modeling

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