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IEEE International Conference on Orange Technologies (ICOT)

作者： Shu-Fen Liu Chun-I Lin Chen-Ying Su Shih-Pang Tseng COOKY's Digital Park Co. Ltd Kaohsiung Department of Electronic Engineering National Kaohsiung University of Applied Sciences Kaohsiung Department of Digital Multimedia Tajen University Pingtung Department of Nursing Tajen University Pingtung Department of Computer Science and Entertainment Technology Tajen University Pingtung

ISBN: (纸本)9781467382380

Motion sensing technology is using various detector to detect the human action as the input of computer system. In the game playing, using the motion sensing technology can directly control the action in the game by the action in the physical environment. In this paper, we presented a 3D-Golf game with motion sensing function. A playing-stick is used as the motion detector. The system can recognize the user's action and show on the virtual environment. And this game is implemented as a web service. Thus the users can easily play without any installation overhead. In addition, the user can play together like a real golf club.

关键词： Games computers Three-dimensional displays Sensors Virtual reality Acceleration Sports equipment

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Spatio-temporal XACML: The expansion of XACML for access control

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International Journal of Security and Networks 2015年第1期10卷 56-63页

作者： Lee, Ki Young Kim, Aleum Jeon, Ye Eun Kim, Jeong Joon Im, Yong Soon Choi, Gyoo Seok Park, Sang Bong Lim, Yun Sik Kang, Jeong Jin Department of Medical IT and Marketing Eulji University Seongnam461-713 Korea Republic of Division of Computer Science and Engineering Konkuk University Seoul143-701 Korea Republic of Department of Information Technology Kookje University Pyeongtaek459-721 Korea Republic of Department of Computer Science Chungwoon University Incheon402-803 Korea Republic of Department of Information and Communication Semyung University Jecheon390-711 Korea Republic of Department of Broadcasting Production and Entertainment Yeoju Institute of Technology Yeoju469-705 Korea Republic of Department of Information and Communication Dong Seoul University Seongnam461-714 Korea Republic of

eXtensible Access Control Markup Language (XACML) standardised by OCG was widely used in the area of information security. And recently geospatial XACML was standardised. But now, types of information are diversified. Especially, importance of information about time and space is continually increased. We use information to know where or when we do something. For instance, we usually check time or find the way with it. Therefore, Geospatial eXtensible Access Control Markup Language (GeoXACML) is not enough to cover it. In this paper, we propose that spatio-temporal XACML which can accept not only geospatial information but also temporal information. Spatio-temporal XACML is based on and expands standardised GeoXACML in OCG. Its scenario consists of access control between positions of polices. Copyright © 2015 Inderscience Enterprises Ltd.

关键词： Access control

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Deduction of fighting-game countermeasures using the k-nearest neighbor algorithm and a game simulator

Deduction of fighting-game countermeasures using the k-neare...

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IEEE Symposium on Computational Intelligence and Games, CIG

作者： Kaito Yamamoto Syunsuke Mizuno Chun Yin Chu Ruck Thawonmas Intelligent Computer Entertainment Laboratory Ritsumeikan University Shiga Japan Department of Computer Science and Engineering Hong Kong University of Science & Technology Hong Kong PR China

This paper proposes an artificial intelligence algorithm that uses the k-nearest neighbor algorithm to predict its opponent's attack action and a game simulator to deduce a countermeasure action for controlling an in-game character in a fighting game. This AI algorithm (AI) aims at achieving good results in the fighting-game AI competition having been organized by our laboratory since 2013. It is also a sample AI, called MizunoAI, publicly available for the 2014 competition at CIG 2014. In fighting games, every action is either advantageous or disadvantageous against another. By predicting its opponent's next action, our AI can devise a countermeasure which is advantageous against that action, leading to higher scores in the game. The effectiveness of the proposed AI is confirmed by the results of matches against the top-three AI entries of the 2013 competition.

关键词： Artificial intelligence Games computers Delays Classification algorithms Data mining Prediction algorithms

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Efficient real-time shadows 13

Efficient real-time shadows

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ACM Special Interest Group on computer Graphics and Interactive Techniques Conference, SIGGRAPH 2013

作者： Eisemann, Elmar Assarsson, Ulf Schwarz, Michael Valient, Michal Wimmer, Michael Delft University of Technology Netherlands Department of Computer Science and Engineering Chalmers University Sweden Guerrilla Games / Sony Computer Entertainment Netherlands Institute of Computer Graphics and Algorithms Vienna University of Technology Austria

ISBN: (纸本)9781450323390

This course provides an overview of efficient, real-time shadow algorithms. It presents the theoretical background but also discusses implementation details for facilitating efficient realizations (hard and soft shadows, volumetric shadows, reconstruction techniques). These elements are of relevance to both experts and practitioners. The course also reviews budget considerations and analyzes performance trade-offs, using examples from various AAA game titles and film previsualization tools. While physical accuracy can sometimes be replaced by plausible shadows, especially for games, film production requires more pecision, such as scalable solutions that can deal with highly detailed *** course builds upon earlier SIGGRAPH courses as well as the recent book Real-Time Shadows (A K Peters, 2011) by four of the instructors (due to its success, a second edition is planned for 2014). And with two instructors who have worked on AAA game and movie titles, the course presents interesting behindthe-scenes information that illuminates key topics.

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A review on heart sound modeling: Fluid dynamics and signal processing perspective

A review on heart sound modeling: Fluid dynamics and signal ...

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IEEE International Conference on Orange Technologies (ICOT)

作者： Shovan Barma Ta-Wen Kuan Jaw-Shyang Wu Shih-Pang Tseng Jhing-Fa Wang Department of Electrical Engineering National Cheng Kung University Tainan Taiwan Department of Computer Engineering and Entertainment Technology Tajen University Pingtung Taiwan Department of Digital Multimedia Design Tajen University Pingtung Taiwan

ISBN: (纸本)9781467359344

Heart sounds are generated by the several mechanical movements, such as the heart valve leaflets, the blood flow in vessels etc., that can provide the useful information to understand the cardiovascular system in details. Auscultation (PCG) is a non-invasive, low cost and easily repeatable technique to observe the entire system behavior at a glance. Several works have been investigated to model the sounds from different aspects, including the signal processing, the fluid mechanic and the equivalent electrical analogy. However, all the works gave the limitations. Most of the signal processing literatures that are addressed the heuristic decision-based approach; on the other hand, the fluid mechanic-based works discussed the behavior of overall or particular part of the cardiovascular system. Besides, the acoustic signals from heart can be modeled with the help of behavior through the source generation. In this study, several modeling works of heart sound are inspected and categorized according to the literatures, thereafter the advantages and the limitations are discussed. An overall research direction will be conducted to combine the fluid mechanic, the acoustics and the signal processing in the study.

关键词： Heart Valves Signal processing Hidden Markov models Mathematical model Fluid dynamics

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Geometrical positioning schemes for MS location estimation

Geometrical positioning schemes for MS location estimation

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2012 International Symposium on computer, Consumer and Control, IS3C 2012

作者： Chen, Chien-Sheng Chiu, Yi-Jen Lin, Jium-Ming Lee, Chi-Hsien Department of Information Management Tainan University of Technology Tainan City Taiwan Department of Digital Entertainment and Game Design Taiwan Shoufu University Tainan City Taiwan Department of Communication Engineering Chung-Hua University Hsinchu City Taiwan Institute of Computer and Communication National Cheng Kung University Tainan City Taiwan

ISBN: (纸本)9780769546551

To achieve more accurate measurements of the mobile station (MS) location, it is possible to integrate many kinds of measurements. In this paper we proposed several hybrid methods that utilized time of arrival (TOA) at seven base stations (BSs) and the angle of arrival (AOA) information at the serving BS to give location estimation of the MS in non-line-of-sight (NLOS) environments. From the viewpoint of geometric approach, for each a TOA value measured at any BS, one can generate a circle. The MS position is then given by the intersections of the circles from multiple TOA measurements. Rather than applying the nonlinear circular lines of position (LOP), the proposed methods are easier by using linear LOP to determine the MS. In addition, the proposed methods can mitigate the NLOS effect, simply by applying the weighted sum of the intersections between different linear LOP and the AOA line, without requiring priori knowledge of NLOS error statistics. Simulation results show that the proposed methods can always yield superior performance in comparison with Taylor series algorithm (TSA) and the hybrid lines of position algorithm (HLOP). © 2012 IEEE.

关键词： Direction of arrival

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Geometrical Positioning Schemes for MS Location Estimation

Geometrical Positioning Schemes for MS Location Estimation

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International Symposium on computer, Consumer and Control (IS3C)

作者： Chien-Sheng Chen Yi-Jen Chiu Jium-Ming Lin Chi-Hsien Lee Department of Information Management Tainan University of Technology Tainan Taiwan Department of Digital Entertainment and Game Design Taiwan Shoufu University Tainan Taiwan Department of Communication Engineering Chung-Hua University Hsinchu Taiwan Institute of Computer and Communication National Cheng Kung University Tainan Taiwan

关键词： Estimation Nonlinear optics Accuracy Position measurement Taylor series Wireless communication Mobile communication

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Excitation modeling and synthesis for plucked guitar tones

Excitation modeling and synthesis for plucked guitar tones

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IEEE Workshop on Applications of Signal Processing to Audio and Acoustics

作者： Raymond V. Migneco Youngmoo E. Kim Music and Entertainment Technology Laboratory (MET-lab) Department of Electrical and Computer Engineering Drexel University Philadelphia PA USA

The analysis and synthesis of plucked-guitar tones via source-filter approximations is a popular and established method for modeling the resonant behavior of the string as well as the driving excitation signal. By varying the source signal, a nearly unlimited number of unique tones can be produced using a given filter model. However, it as unclear as to how exactly the model excitation signals should be parameterized in order to capture the nuances of a guitarist's articulation from a recorded performance. In this paper, we apply principal components analysis to a corpus of excitation signals derived from plucked-guitar recordings in order to design a codebook that captures the unique characteristics of certain string articulations. The development of an excitation codebook has several applications, including expressive synthesis of guitar tones for virtual music interfaces and insight into the expressive intentions of a performer through audio analysis.

关键词： Principal component analysis Computational modeling Analytical models Signal to noise ratio Music Conferences

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Web-based sound and music games with activities for STEM education

Web-based sound and music games with activities for STEM edu...

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International IEEE Consumer Electronics Society's Games Innovations Conference, ICE-GIC

作者： Travis M. Doll Raymond Migneco Youngmoo E. Kim Music and Entertainment Technology Lab Department of Electrical and Computer Engineering Drexel University Philadelphia PA USA

It is widely believed that computer games have great potential as a compelling and effective tool for science, technology, engineering, and mathematics (STEM) education, particularly for younger students in grades K-12. In previous work we created several prototype games that allow students to use sound and acoustics simulations to explore general scientific concepts. These games were developed using Adobe Flash and are accessible through a standard Web browser, making them particularly well-suited for education environments where custom software may be difficult to install. Pilot testing our games with local K-12 classrooms has demonstrated potential benefits in terms of captivating student interest, but has also revealed multiple avenues for improvement and refinement. We have recently developed a unified development platform that overcomes prior architectural limitations to enable dynamic sound processing and synthesis within Flash applications to improve responsiveness and create rich interactive experiences. Since they are constructed in ActionScript, the relatively straightforward scripting language of Flash, these games can be easily extended or adapted to target highly specific lessons and concepts. In this paper, we detail several specific lesson plans for mathematics and science education developed using customized versions of our previous games.

关键词： Music computer science education Mathematics Educational technology Acoustical engineering Design engineering Software prototyping Virtual prototyping Acoustics Computational modeling

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An audio DSP Toolkit for rapid application development in Flash

An audio DSP Toolkit for rapid application development in Fl...

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IEEE Workshop on Multimedia Signal Processing

作者： Travis M. Doll Raymond Migneco Jeff J. Scott Youngmoo E. Kim Music and Entertainment Technology Laboratory Department of Electrical and Computer Engineering Drexel University Philadelphia PA USA

The Adobe Flash platform has become the de facto standard for developing and deploying media rich Web applications and games. The relative ease-of-development and cross-platform architecture of Flash enables designers to rapidly prototype graphically rich interactive applications, but comprehensive support for audio and signal processing has been lacking. ActionScript, the primary development language used for Flash, is poorly suited for DSP algorithms. To address the inherent challenges in the integration of interactive audio processing into Flash-based applications, we have developed the DSP Audio Toolkit for Flash, which offers significant performance improvements over algorithms implemented in Java or ActionScript. By developing this toolkit, we hope to open up new possibilities for Flash applications and games, enabling them to utilize real-time audio processing as a means to drive gameplay and improve the experience of the end user.

关键词： Digital signal processing Signal processing algorithms Games computer architecture Collaboration Application software Java Standards development Signal design Prototypes

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