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检索条件"任意字段=2011 3rd International Conference on Computer Research and Development, ICCRD 2011"

共 2808 条记录，以下是401-410 订阅

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A photomosaic image generation on smartphone

A photomosaic image generation on smartphone

引用

3rd international conference on Information Technology Convergence and Services, ITCS 2011 and 2011 FTRA international conference on Intelligent Robotics, Automations, Telecommunication Facilities, and Applications, IRoA 2011

作者： Kang, Dongwann Seo, Sang-Hyun Ryoo, Seung-Taek Yoon, Kyung-Hyun School of Computer Science and Engineering Chung-Ang University Heukseok-dong Dongjak-gu Seoul Korea Republic of Bâtiment Nautibus Université Claude Bernard Lyon 1 43 boulevard du 11 Novembre 1918 Villeurbanne Cedex France School of Computer Engineering Han-Shin University Yangsan-dong Osan-si Gyeonggi-do Korea Republic of

ISBN: (纸本)9789400725973

As the usage of mobile device, such as smartphone is becoming common, persons' interests in user created contents (UCC) are increasing gradually. Especially, the mobile devices combined with camera make that anyone can create UCC easily. In this paper, we introduce the implementation of smartphone application for converting an image which is taken by the phone into a non-photorealistic photomosaic image. Generally, photomosaic requires large database in order to create high quality result. Because the resource of mobile device is restricted, it is hard to store the large database of photomosaic in mobile device. We obtained the effect which increases the database by using the database which consists of rotatable images. We also offer a solution for the performance issue of best match search. © 2011 Springer Science+Business Media B.V.

关键词： Smartphones

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Towards an autonomous indoor vehicle: Utilizing a vision-based approach to navigation in an indoor environment

Towards an autonomous indoor vehicle: Utilizing a vision-bas...

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作者： Mattison, Edward Ghose, Kanad Computer Science Department State University of New York Binghamton NY 13902 United States

ISBN: (纸本)9789400725973

We introduce a vision system based approach to autonomous navigation and mapping in an indoor environment. Our goal is to eventually create a common processing system that can direct both aerial and ground vehicles. This paper presents our initial results for controlling a ground vehicle as well as demonstrates the potential of a vision-based system controlling a completely airborne solution or a solution that combines aerial vehicles with ground vehicles. The autonomous ground explorer (AGE) described here serves as a test vehicle to validate the algorithms that will be integrated into the control of our aerial vehicle that is under development. The ground explorer uses only vision (three basic web cameras) to efficiently move within building corridors. The ground explorer navigates hallways and makes directional decisions based on the following processes: tracking the corridor's visual vanishing point, anticipating intersections using odometry and fiduciary markers, identifying and classifying intersections based on vanishing points and fiduciary markers, and completing controlled turns based on a confidence factor in its location on a calculated route within a simplified topological map. © 2011 Springer Science+Business Media B.V.

关键词： Ground vehicles

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A framework for efficient web services provisioning in mobile environments

A framework for efficient web services provisioning in mobil...

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3rd international conference on Mobile Computing, Applications, and Services, MobiCASE 2011

作者： Elgazzar, Khalid Martin, Patrick Hassanein, Hossam School of Computing Queen's University Kingston ON K7L 3N6 Canada

ISBN: (纸本)9783642323195

Advancements in wireless networks and mobile device capabilities enable ubiquitous access for Web resources anywhere anytime. Web service technologies enable rapid and low-cost development of networked and portable applications. The successful convergence of these technologies produces mobile Web services provisioning, where mobile devices can host and provide Web services. However, the resource constraints of mobile devices and the characteristics of wireless networks pose key challenges to mobile Web services provisioning. Several research efforts have studied the Web services provisioning from mobile devices, however, they address specific aspects in isolation which may yield inefficient Web service provisioning. This paper proposes a generic framework for efficient Web services provisioning in mobile heterogeneous environments with resource-constrained mobile devices. We demonstrate the proposed framework using a use-case scenario and a sample prototype. A preliminary provisioning prototype shows that the framework is able to provide reliable and personalized Web services while maintaining the service availability. © 2012 ICST Institute for computer Science, Social Informatics and Telecommunications Engineering.

关键词： Web services

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An improved protection profile for multifunction peripherals in consideration of network separation

An improved protection profile for multifunction peripherals...

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作者： Lee, Changbin Lee, Kwangwoo Park, Namje Won, Dongho Information Security Group Sungkyunkwan University Suwon Korea Republic of Department of Computer Education Teachers College Jeju National University Jeju-si Korea Republic of

ISBN: (纸本)9789400725973

Multifunction peripherals, capable of networking and equipped with several hardcopy functions with various security functions, are taking place of printers and other printing devices in office workplaces. However, the security functions within a multifunction peripheral and its IT environments may have vulnerabilities. The information transmitted in multifunction peripherals includes very sensitive data since the device is networked to transmit data including confidential information. There have been international efforts to mitigate this anxiety of consumers through common criteria. In 2009, a series of standards for multifunction peripherals were developed. These protection profiles are classified in accordance to four different operational environments. However, though multifunction peripherals treat confidential information, network separation issue is not regarded in classifying the operational environments. Thus, in this paper, we present an operational environment and propose a protection profile that is appropriate for the new environment. © 2011 Springer Science+Business Media B.V.

关键词： Sensitive data

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Tracking user activity on personal computers

引用

3rd international ICST conference on Digital Forensics and Cyber Crime, ICDF2C 2011

作者： Keane, Anthony O'Shaughnessy, Stephen Network Security and Computer Forensics Research Group Institute of Technology Blanchardstown Dublin 15 Ireland

ISBN: (纸本)9783642355141

Combining low cost digital storage with the tendency for the average computer user to keep computer files long after they have become useful has created such large stores of data on computer systems that the cost and time to conduct even a preliminary examination has created new technical and operational challenges for forensics investigations. Popular operating systems for personal computers do not inherently provide services that allow the tracking of the user's activity that would allow a simple personal audit of their computers to be carried out so the user can see what they were doing, when they did it and how long they spent on each activity. Such audit trails would assist in forensics investigations in building timelines of activity so suspects could be quickly eliminated (or not) from an investigation. This paper gives some insight to the advantages of having a user activity tracking system and explores the difficulties in developing a generic third party solution. © 2012 ICST Institute for computer Science, Social Informatics and Telecommunications Engineering.

关键词： Personal computers

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The crisp project - Building synergies between research infrastructures

The crisp project - Building synergies between research infr...

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3rd international Particle Accelerator conference 2012, IPAC 2012

作者： Antici, P. INFN Via E. Fermi 00044 Frascati Italy

ISBN: (纸本)9783954501151

Recently, the European Commission granted 12 M€ for a project aiming at the implementation of common solutions in infrastructures on the ESFRI* roadmap in the fields of physics, astronomy and analytical sciences. The objective of this initiative is to generate synergies in the development of components of interest for several infrastructures and thus promote efficiency and optimisation in the use of resources. The project, called "CRISP (Cluster of research Infrastructures for Synergies in Physics) and started October 2011, gathers many major European large-scale infrastructures (CERN, XFEL, ESRF, ESS, FAIR, ILL, SKA, SLHC, SPIRAL-2, ELI, EuroFEL, ILC-Higrade etc). The generated synergies will be crucial to stimulate scientific and technological progress and to respond to the rapidly evolving user community. A brief overview of the different activities that are part of the project will be given, presenting the innovative approach of crossing boundaries between scientific disciplines and thus generating synergies. Copyright © 2012 by IEEE.

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Alternative concept for geometry factor of frequency reuse in 3GPP LTE networks

Alternative concept for geometry factor of frequency reuse i...

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作者： Shbat, Modar Safir Tuzlukov, Vyacheslav College of IT Engineering Electronics Engineering Department Kyungpook National University 1370 Sankyuk-dong Buk-gu Daegu 702-701 Korea Republic of

ISBN: (纸本)9789400725973

An intelligent radio resource management (RRM) is the core system of long term evolution (LTE) networks to provide the upcoming future applications with the broadband mobility, development of self organizing network (SON), and quality of service (QoS). Third generation partnership project (3GPP) standardizes that every 1 ms the physical radio resource blocks (PRBs) should be rescheduled during the transmission time interval (TTI). This proposal places a lot of processing load in the evolved node B's (eNodeBs). The way to speed up the scheduling process should be considered in addition to increasing the whole LTE network throughput caused by utilization of high order modulation. It requires more processing time on both ends of the transmission process. In this article, important radio resource scheduling aspects are discussed. An alternative concept for geometry factor based on a new feedback method of channel quality information (CQI) can be used to employ the determined frequency reuse policy among the LTE cells. The presented concept helps us to reduce the PRBs scheduling time, processing load, and complexity. © 2011 Springer Science+Business Media B.V.

关键词： Quality of service

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development of high power infrared optical parametric amplification laser system seeded by self-difference frequency generation pulses

引用

12th international conference on Multiphoton Processes, ICOMP 2011 and the 3rd international conference on Attosecond Physics, ATTO 2011

作者： Kanai, Tsuneto Weber, Sébastien Zaïr, Amelle Hutchison, Christopher Siegel, Thomas Oppermann, Malte Hutchinson, Simon Witting, Tobias Brugnera, Leonardo Ganeev, Rashid A. Azuma, Toshiyuki Midorikawa, Katsumi Marangos, Jonathan P. Atomic Molecular and Optical Physics Laboratory RIKEN ASI 2-1 Hirosawa Wako-shi Saitama 351-0198 Japan Department of Physics Blackett Laboratory Imperial College London London SW7 2BW United Kingdom Extreme Photonics Research Group RIKEN ASI 2-1 Hirosawa Wako-shi Saitama 351-0198 Japan

ISBN: (纸本)9783642289477

We report on our recent development of a femtosecond infrared laser system based on self-phase-stabilized seed by difference-frequency generation of supercontinuum obtained with so-called hollow fiber compression technique and two-stage optical parametric amplification. After the final amplifier, we obtained pulses with duration of 500 μJ and as a first demonstration of this new laser system, we generated high-harmonics up to 47th order in a tube target filled with Xe gas. © Springer-Verlag Berlin Heidelberg 2012.

关键词： Optical parametric amplifiers

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A noise reduction method for range images using local Gaussian observation model constrained to unit tangent vector equality

A noise reduction method for range images using local Gaussi...

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作者： Kim, Jeong Heon Choi, Kwang Nam Department of Computer Science and Engineering Chung-Ang University Heukseok-dong Dongjak-gu Seoul Korea Republic of

ISBN: (纸本)9789400725973

We present a method for smoothing heavy noisy surfaces acquired by on-the-fly 3D imaging devices to obtain the stable curvature. The smoothing is performed in a way that finds centers of probability distributions which maximizes the likelihood of observed points with smooth constraints. The smooth constraints are derived from the unit tangent vector equality. This provides a way of obtaining smooth surfaces and stable curvatures. We achieve the smoothing by solving the regularized linear system. The unit tangent vector equality involves consideration of geometric symmetry and it minimizes the variation of differential values that are a factor of curvatures. The proposed algorithm has two apparent advantages. The first thing is that the surfaces in a scene with various signals to noise ratio are smoothed and then they can earn suitable curvatures. The second is that the proposed method works on heavy noisy surfaces, e.g., a stereo camera image. Experiments on range images demonstrate that the method yields the smooth surfaces from the input with various signals to noise ratio and the stable curvatures obtained from the smooth surfaces. © 2011 Springer Science+Business Media B.V.

关键词： Signal to noise ratio

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research for computer Integrated Manufacture in Complex Shape Piston of Diesel Engine

Research for Computer Integrated Manufacture in Complex Shap...

引用

3rd international conference on Mechanical and Electronics Engineering (ICMEE 2011)

作者： Liu Yongfeng Yang Jianwei Tian Hongsen Zhu Aihua Beijing Univ Civil Engn & Architecture Sch Mech Elect & Automobile Engn Beijing 100044 Peoples R China

ISBN: (纸本)9783037852866

In order to improve complex shape piston productivity computer integrated manufacturing system (CIMS) technology is presented. Design elements need to be taken into account in CIMS technology, which are geometry, material choice, and rationalization of components (reducing assemblies) and cost. In design freedom phrase, this new design freedom will place much more responsibility on the designer to think about the exact requirements of a part - with the unlimited geometry capability designers will therefore need to be much more imaginative to make full use of the new manufacturing processes. New design paradigm is presented and mechanical designers will be able to manufacture any complexity of product they require. Effect of graded materials on product design is considered and 2D and 3D of piston are carried out. CAD issues and assembly constraints of complex shape piston of diesel engine are discussed. It gives new method to design and produce complex shape piston of diesel engine.

关键词： computer integrated manufacturing Automation Piston Diesel engine

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