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International Conference on Pattern Recognition

作者： Wu, Pin Hsieh, Jun-Wei Cheng, Jiun-Cheng Cheng, Shyi-Chyi Tseng, Shau-Yin Dep. of Electrical Engineering Yuan-Ze University 135 Yuan-Tung Road Chung-Li Taiwan Dep. of Computer Science and Eng. National Taiwan Ocean University 2 Pei-Ning Road Keelung Taiwan Inform. and Com. Res. Lab. Industry Tech. Res. Institute Chutung Hsinchu Taiwan

ISBN: (纸本)9780769541099

This paper presents a novel scheme to automatically and directly detect smoking events in video. In this scheme, a color-based ratio histogram analysis is introduced to extract the visual clues from appearance interactions between lighted cigarette and its human holder. The techniques of color re-projection and Gaussian Mixture Models (GMMs) enable the tasks of cigarette segmentation and tracking over the background pixels. Then, a key problem for event analysis is the non-regular form of smoking events. Thus, we propose a self-determined mechanism to analyze this suspicious event using HHM framework. Due to the uncertainties of cigarette size and color, there is no automatic system which can well analyze human smoking events directly from videos. The proposed scheme is compatible to detect the smoking events of uncertain actions with various cigarette sizes, colors, and shapes, and has capacity to extend visual analysis to human events of similar interaction relationship. Experimental results show the effectiveness and real-time performances of our scheme in smoking event analysis. © 2010 IEEE.

关键词： Color

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Tool support for service oriented development from business processes

Tool support for service oriented development from business ...

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2nd International Workshop on Model-Driven Service engineering, MoSE 2010

作者： Delgado, Andrea De Guzmán, Ignacio García-Rodríguez Ruiz, Francisco Piattini, Mario Faculty of Engineering Computer Science Institute University of Republica Julio Herrera y Reissig 565 1300 Montevideo Uruguay Dep. of Information Technologies and Systems Alarcos Research Group University of Castilla - la Mancha 13071 Ciudad Real Spain

The integration of Business Process Management (BPM), Service Oriented Computing (SOC) and Model Driven Development (MDD) paradigms to improve the development of services oriented solutions from business models is nowadays in the spotlight. Organizations wanting to remain competitive despite the constant changes in their business are paying more attention to their business processes and its base lifecycle. Business process modeling is also at the centre of software development efforts, as making those models explicitly constitutes the basis for services definition. Transformations between business process and services models allow the automatic generation of services from business processes in a repeatable and systematic way, easing the development process. In this paper we present MINERVA's tool support for service oriented development from business processes, including QVT transformations from BPMN to SoaML models to automatically generate service models from business process models.

关键词： Software design

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Rescue robots at the Collapse of the municipal archive of Cologne City: A field report

Rescue robots at the Collapse of the municipal archive of Co...

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IEEE International Workshop on Safety, Security and Rescue Robotics

作者： Linder, Thorsten Tretyakov, Viatcheslav Blumenthal, Sebastian Molitor, Peter Holz, Dirk Murphy, Robin Tadokoro, Satoshi Surmann, Hartmut Fraunhofer IAIS Schloss Birlinghoven Sankt Augustin NRW Germany Deparment of Computer Science II Bonn-Rhein-Sieg University Sankt Augustin NRW Germany Dep. of Computer Science VI University of Bonn Bonn NRW Germany Deparment of Computer Science and Engineering Texas AandM University Bryan TX United States Graduate School of Information Sciences Tohoku University Sendai Miyagi Japan

ISBN: (纸本)9781424488995

This paper presents a field report and summarizes the problems of the appliance of rescue robots during the Collapse of the Historical Archive of the City of Cologne. Two robots where on the field, ready to be applied: A shoe-box size tracked mobile robot (VGTV Xtreme) and a caterpillar like system (Active Scope Camera). Due to the special type of collapse and design limitations of the robots, both robotic systems could not be applied. Either they could not reach/fit into voids or could not be controlled from a safe distance. The problems faced have been analyzed and are described in this paper. © 2010 IEEE.

关键词： Robots

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Design of accurate power factor measurement approach using FPGA-based chip

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WSEAS Transactions on Circuits and Systems 2010年第7期9卷 453-462页

作者： Wang, Shu-Chen Wu, Chi-Jui Department of Computer and Communication Engineering Taipei College of Maritime Technology Taipei Taiwan Dep. of Electrical Engineering National Taiwan University of Science and Technology Taipei Taiwan

In recent years, power electronic components introduce harmonic pollution on electric power systems. It makes the traditional electromechanical power meter can not act accurately when it feeds unbalanced and harmonic loads. Power quality analysis now tends to use digital signal technology. But it is hard to avoid measurement errors in estimating power quality by digital signal technology. In this paper, it is to improve the computation errors by using FPGA. The simulation circuits were created and measured by Matlab. Then it will discuss the case of single-phase full-wave bridge rectifier loads. And then in the three-phase circuit the effective power factor, arithmetic power factor, and fundamental power factor will be compared in several simulation cases. The computation errors have been greatly reduced. In the study, the Fast Fourier Transform (FFT) is used to analyze the formula of power factor. The simulation system was modeled in Hardware Description Language (VHDL) and some novel IP (intellectual property) cores, such as CORDIC core and FFT core by the way of Bottom-Up. Design of SOC (System on a Chip) is a trend to achieve the strong and small volume in the future.

关键词： Field programmable gate arrays (FPGA)

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Face Detection Based on Feature Analysis and Edge Detection against Skin Color-like Backgrounds

Face Detection Based on Feature Analysis and Edge Detection ...

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International Conference on Genetic and Evolutionary Computing (ICGEC)

作者： Deng-Yuan Huang Ta-Wei Lin Chun-Ying Ho Wu-Chih Hu Department of Electrical Engineering Da-Yeh University Changhua Taiwan Dep. of Computer Science and Information Engineering National Penghu University of Science and Technology Penghu Taiwan

In this paper, we propose a method of face detection based on feature analysis and edge detection against skin color-like backgrounds. The proposed method consists of three phases including image preprocessing, skin color segmentation, and determination of face candidates. First, the objects in foreground are separated by image preprocessing. Second, the non-skin color objects are rejected by the method of skin color segmentation. Finally, both the elimination of skin color-like blobs in backgrounds and face detection are performed by the method of determination of face candidates. Experimental results show that the proposed method can effectively detect most of faces in skin color-like backgrounds. In addition, detection of face images with pose and expression variations or against dark backgrounds are also carried out.

关键词： Face Skin Image color analysis Face detection Pixel Image segmentation Image edge detection

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The design of real-time information transmission system based on 3G technology and Pocket PC platforms

The design of real-time information transmission system base...

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International Conference on Information science and engineering (ICISE)

作者： Liu, Yuan Yu, Yaping Hua, Xufeng He, Yuxiang Department of Mechanic and Electronic Engineering Tianjin Agricultural University Tianjin China Dep. of Computer Science and Information Engineering Tianjin Agricultural College Tianjin China

ISBN: (纸本)9781424480968

This paper develops a system of high-speed data transmission on Pocket PC platforms based on 3G network technology, with a high degree of programmability and portability. It is adopted by Microsoft Visual Studio. The system realizes the data collection and transmission through digital media instead of paper media. As it adopts the convergence between mobile phone networks and Internet, PPC terminal can exchange data with the central server. This paper illustrates the development and procedure of the modules. © 2010 IEEE.

关键词： Digital storage

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Sharing epigraphic information as linked data

Sharing epigraphic information as linked data

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4th International Conference on Metadata and Semantic Research, MTSR 2010

作者： Álvarez, Fernando-Luis García-Barriocanal, Elena Gómez-Pantoja, Joaquín-L. Information Engineering Research Unit Computer Science Dept. University of Alcalá Ctra. Barcelona km. 33.6 28871 Alcalá de Henares Madrid Spain Dep. of History. University of Alcalá C/ Colegios 2 E-28801 Alcalá de Henares Madrid Spain

ISBN: (纸本)3642165516

The diffusion of epigraphic data has evolved in the last years from printed catalogues to indexed digital databases shared through the Web. Recently, the open EpiDoc specifications have resulted in an XML-based schema for the interchange of ancient texts that uses XSLT to render typographic representations. However, these schemas and representation systems are still not providing a way to encode computational semantics and semantic relations between pieces of epigraphic data. This paper sketches an approach to bring these semantics into an EpiDoc based schema using the Ontology Web Language (OWL) and following the principles and methods of information sharing known as "linked data". The paper describes the general principles of the OWL mapping of the EpiDoc schema and how epigraphic data can be shared in RDF format via dereferenceable URIs that can be used to build advanced search, visualization and analysis systems. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Linked data

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Carbon footprints analysis for tunnel construction processes in the preplanning phase using collaborative simulation

Carbon footprints analysis for tunnel construction processes...

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Construction Research Congress 2010: Innovation for Reshaping Construction Practice

作者： Ahn, Changbum Xie, Hua Lee, Sang Hyun Abourizk, Simaan Peña-Mora, Feniosky Construction Management and Information Technology Groups Department of Civil and Environmental Engineering University of Illinois at Urbana- Champaign 205 N. Mathews Ave. Urbana IL 61801 United States The Hole School of Construction Engineering Dep. of Civil and Environmental Engineering University of Alberta Edmonton AB T6G 2W2 Canada Fu Foundation School of Engineering and Applied Science Dept. of Civ. Eng. and Eng. Mechanics Earth and Environmental Engineering and Computer Science Columbia University 500 W. 120th St. New York NY 10027 United States

ISBN: (纸本)9780784411094

Under the fast-developing carbon trading market, the construction industry needs to mitigate carbon emissions from construction processes. Among various construction processes, tunnel construction produces a significant amount of carbon emissions, since it utilizes various types of high energy-consuming equipment. In order to identify and mitigate such carbon emissions of a tunneling project, it is required to reliably estimate carbon footprints of a tunneling project in the pre-planning phase. This paper presents the methodology for estimating the carbon footprints generated during tunnel construction processes using the collaborative tunneling simulation. A case study using this methodology shows that carbon footprints from a utility tunnel construction are significant compared with those from a building construction. In addition, the assessment of carbon footprints of the case study identifies the opportunities to mitigate such impact by supporting decision-making on equipment and operation plans in the planning phase and providing a control target level of carbon footprints in the execution phase. Copyright ASCE 2010.

关键词： Construction equipment

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Simulation, design, and characterization of electrically-pumped VECSELs for future passive modelocking

Simulation, design, and characterization of electrically-pum...

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Conference on Lasers and Electro-Optics (CLEO)

作者： M. Hoffmann Y. Barbarin W.P. Pallmann D.J.H.C. Maas P. Kreuter B. Witzigmann M. Golling T. Südmeyer U. Keller Department of Physics Institute for Quantum Electronics ETH Zurich Zurich Switzerland Department of Information Technology and Electrical Engineering Integrated Systems Laboratory ETH Zurich Switzerland Dep. of Electrical Engineering and Computer Science Computational Electronics and Photonics Group University of Kassel Germany

An ultrafast electrically-pumped VECSEL design requires an acceptable trade-off in cw output power. Validating our design guidelines and simulations 120 mW cw output power are generated. Homogenous current injection i... 详细信息

ISBN: (纸本)9781557528896

关键词： Power generation Biomedical optical imaging Optical pumping Laser modes Gallium arsenide Ultrafast optics Vertical cavity surface emitting lasers Doping Stimulated emission Semiconductor lasers

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Object coverage with camera rotation in visual sensor networks 10

Object coverage with camera rotation in visual sensor networ...

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6th International Wireless Communications and Mobile Computing Conference, IWCMC 2010

作者： Chen, Tzung-Shi Tsai, Hua-Wen Chen, Chih-Ping Peng, Jiun-Jie Dept. of Computer Sci. and Info.Engineering National University of Tainan Taiwan Dept. of Computer Info. and Network Eng. Lunghwa University of Science and Technology Taiwan Dep. of Infor. and Learning Tech. National University of Tainan Taiwan

ISBN: (纸本)9781450300629

This paper is to study the object coverage problem in visual sensor networks. When sensors equipped camera with rotating capability in the monitoring environment are dep.oyed randomly, the images of target object with circle shape may be captured by different camera nodes in different orientations at the same time. In order to achieve the full coverage of an object, there might be lots of redundant image data to consume the transmission energy in visual sensor networks. An approach is proposed to reduce the cover set of camera nodes by rotating cameras of sensors. Such a set can cover the entire object using as few sensors as possible. In addition, a mapping is proposed for find out the coverage problem for target objects with convex polygon shape. The simulation results show that our approach can reduce the number of sensors while preserving the maximum coverage range of object. © 2010 ACM.

关键词： Cameras

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