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作者： Lim, Ki-Woong Ahn, Sang Chul Kwon, Yong-Moo Sohn, KwangHoon Imaging Media Research Center KIST[Korea Institute of Science Technology Seoul Korea Republic of School of Electrical and Computer Engineering Yonsei University Seoul Korea Republic of

ISBN: (纸本)9781424474530

In the future, robots will use various robot H/W platforms and their services will be composed of S/W components. Accordingly, it needs a robot S/W platform that provides standardized components and interfaces for fast robot development. OPRoS(Open Software Platform for Robotics Services) is a robot S/W platform that provides standardized components and interfaces. It uses the UPnP(Universal Plug and Play) as communication middleware. The UPnP is designed to bring easy-to-use, flexible, and standards-based connectivity to ad-hoc or unmanaged networks. We use UPnP eventing for push-style data transfer. But, the UPnP eventing has an inefficient factor for this. In this paper, we explain the reason and propose a single event mechanism to overcome the inefficiency. ©ICROS.

关键词： Middleware

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Erratum to “Mittag-Leffler Stability Theorem for Fractional Nonlinear Systems with Delay”

Abstract and Applied Analysis

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Abstract and Applied Analysis 2011年第1期2011卷

作者： S. J. Sadati D. Baleanu A. Ranjbar R. Ghaderi T. Abdeljawad (Maraaba) Department of Electrical and Computer Engineering Faculty of Electrical Engineering Babol Noshirvani University of Technology Babol Irannit.ac.ir Department of Mathematics and Computer Science Faculty of Arts and Sciences Çankaya University 06530 Ankara Turkeycankaya.edu.tr Institute of Space Sciences P.O. Box MG-23 76900 Magurele-Bucharest Romaniaspacescience.ro

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DIRECT IMPORTANCE ESTIMATION WITH PROBABILISTIC PRINCIPAL COMPONENT ANALYZERS

DIRECT IMPORTANCE ESTIMATION WITH PROBABILISTIC PRINCIPAL CO...

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IEEE International Conference on Acoustics, Speech, and Signal Processing

作者： Makoto Yamada Masashi Sugiyama Gordon Wichern Department of Computer Science Tokyo Institute of Technology & JST Arts Media and Engineering Arizona State University

ISBN: (纸本)9781424442959

The importance estimation problem (estimating the ratio of two probability density functions) has recently gathered a great deal of attention for use in various applications, e.g., outlier detection and covariate shift adaptation. In this paper, we propose a new importance estimation method using mixtures of probabilistic principal component analyzers (PP-CAs). Our method employs the framework of the Kullback-Leibler importance estimation procedure (KLIEP) using using linear or kernel models. The proposed approach entitled PPCA mixture KLIEP (PM-KLIEP) can improve importance estimation accuracy with correlated and rank-deficient data. Through experiments, we show the validity of the proposed approach.

关键词： Importance KLIEP Probabilistic PCA EM algorithm

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2D motion detection bounded hand 3D trajectory tracking and gesture recognition under complex background

2D motion detection bounded hand 3D trajectory tracking and ...

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9th ACM SIGGRAPH International Conference on VR Continuum and Its Applications in Industry, VRCAI 2010

作者： Wu, Shuangqing Zhang, Yin Zhang, Sanyuan Ye, Xiuzi Cai, Yiyu Zheng, Jianmin Ghosh, Soumita Chen, Wenyu Zhang, Jane College of Computer Science and Technology Zhejiang University China School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore Singapore Institute of Media Innovation Nanyang Technological University Singapore Singapore School of Computer Engineering Nanyang Technological University Singapore Singapore Department of Electrical Engineering California Polytechnic State University United States

ISBN: (纸本)9781450304597

In this paper, a 2D motion detection bounded hand 3D trajectory tracking and gesture recognition system is proposed for virtual reality interactions. First, the Bayes decision rule for classification of background and foreground is utilized to automatically locate the hand that bounded within a rectangle, and then the trajectory of the hand in 3D space is tracked by mean shift particle filter and stereo imaging. The skin color feature is exploited for image matting that effectively segment the hand contour in video sequence automatically. Finally the hand gesture is recognized by the connected component analysis and line approximation. The proposed technique works without any markers or constraints, overcomes the disturbance of arms and faces in the scene, and can recognize multiple hands with different gestures under complex background. Copyright © 2010 by the Association for Computing Machinery, Inc.

关键词： Gesture recognition

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Time-delay effect on continuous approximation of sliding mode control

Time-delay effect on continuous approximation of sliding mod...

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2010 11th International Workshop on Variable Structure Systems, VSS 2010

作者： Li, Xiangjun Yu, Xinghuo Han, Qinglong Wang, Changhong School of Electrical and Computer Engineering RMIT University Melbourne VIC 3001 Australia Faculty of Arts Business Information and Education Central Queensland University Rockhampton QLD 4702 Australia School of Control Science and Engineering Harbin Institute of Technology Harbin China

ISBN: (纸本)9781424458318

In this paper, time-delay effect on continuous approximation of sliding mode control (SMC) systems is studied in depth. The switching band that bound the zigzagging behaviors due to control switching around the switching manifold is constructed. Robust control theory is employed to develop a sufficient condition for the asymptotical stability of the system. Simulation is conducted to verify the theoretical results. © 2010 IEEE.

关键词： Sliding mode control

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A planar covered multi-slot-array heat applicator with beam scanning capability for interstitial microwave hyperthermia

A planar covered multi-slot-array heat applicator with beam ...

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Microwave, MTT-S International Symposium

作者： Dongki Kim Namgon Kim Changyul Cheon Youngwoo Kwon School of Electrical Engineering and Computer Science and Institute of New Media and Communications Seoul National University of Technology Seoul South Korea School of Electrical and Computer Engineering University of Seoul Seoul South Korea

A planar covered multi-slot-array heat applicator with beam scanning capability is developed for interstitial microwave hyperthermia. The interstitial applicator is based on multi-slot-array structure, and beam scanning capability is added by gradual variation of the slot sizes. Through the choice of input frequencies, concentrated beam can be generated at the designed slot positions, which provides focused heating as well as additional dimension of beam control. A low permittivity dielectric cover is placed on top of the slot arrays to double in function as a protective layer and a dielectric lens which helps to flatten the wavefront to allow the microwave radiation deeper into the heating material. The measured infra-red images and thermal distributions confirm the beam scanning capability of the proposed applicator. It is also shown that the heating volume and uniformity can be improved by the proposed beam scanning applicator compared with the fixed beam applicator using uniform slot arrays.

关键词： Applicators Electromagnetic heating Hyperthermia Dielectrics Frequency Focusing Temperature control Permittivity Microwave antenna arrays Protection

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A V-band switched beam-forming network using absorptive SP4T switch integrated with 4×4 Butler matrix in 0.13-µm CMOS

A V-band switched beam-forming network using absorptive SP4T...

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Microwave, MTT-S International Symposium

作者： Konggyun Park Wooyeol Choi Youngmin Kim Kihyun Kim Youngwoo Kwon School of Electrical Engineering and Computer Science and Institute of New Media and Communication Seoul National University of Technology Seoul South Korea

An integrated switched beam forming network is demonstrated at V-band by integrating an absorptive single-pole four-throw (SP4T) switch together with a 4×4 Butler matrix using 0.13 μm CMOS process. The fabricated absorptive SP4T switch shows a measured insertion loss of 4.5 dB at 60 GHz and isolation higher than 31 dB from 57 to 63 GHz. The return losses of the deactivated output ports also maintain better than 14 dB due to the absorptive configuration. The entire insertion loss of the integrated beam former IC was around 7.5 dB at 60 GHz, among which 3 dB is attributed to Butler matrix. The overall phase error was within ±12%. The calculated array factor from the measured S-parameters shows that the beam-forming network generates four beams at ±14°, ±54°. To the best of our knowledge, this is the first demonstration of CMOS switched beam-forming network integrating an absorptive SP4T switch and Butler matrix at V-band.

关键词： Switches Butler matrix Communication switching Switching circuits CMOS process Insertion loss Frequency Arm Degradation Antenna radiation patterns

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A novel framework of fast and unambiguous link failure localization via monitoring trails

A novel framework of fast and unambiguous link failure local...

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IEEE Conference on computer Communications Workshops, INFOCOM 2010

作者： Wu, Bin Ho, Pin-Han Tapolcai, János Jiang, Xiaohong Department of Electrical and Computer Engineering University of Waterloo Waterloo ON N2L 3G1 Canada Department of Telecommunications and Media Informatics Budapest University of Technology and Economics Budapest Hungary Department of Computer Science Graduate School of Information Science Tohoku University Aramaki Sendai 980-8579 Japan

ISBN: (纸本)9781424467396

The concept of monitoring trail (m-trail) has been proposed for achieving Fast and Unambiguous Link-failure Localization (FULL) in all-optical WDM (Wavelength Division Multiplexing) mesh networks. Previous studies on m-trails assumed the presence of alarm dissemination at each node such that a remote routing entity can collect the flooded alarm bits and form the alarm code to localize the failed link. This obviously leads to additional delay and extra control complexity in the electronic domain process. In this paper, we propose a novel framework based on m-trails for FULL, aiming at avoiding any possible alarm flooding and electronic domain mechanism such that each individual monitoring node (MN) can localize a single link failure according to locally available alarm bits. To save the supervisory wavelength-links, the proposed framework enables that the status of an m-trail can be monitored by multiple MNs along the m-trail by tapping the optical supervisory signal, rather than only by the destination node of the m-trail. An ILP (Integer Linear Program) is formulated and solved in a case study to verify the ILP and show the effectiveness of the proposed framework. We demonstrate that the status sharing among MNs of a common m-trail can effectively suppress the increase of supervisory wavelength-links as the number of MNs increases. ©2010 IEEE.

关键词： Wavelength division multiplexing

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AUTOMATIC AUDIO TAGGING USING COVARIATE SHIFT ADAPTATION

AUTOMATIC AUDIO TAGGING USING COVARIATE SHIFT ADAPTATION

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IEEE International Conference on Acoustics, Speech, and Signal Processing

作者： Gordon Wichern Makoto Yamada Harvey Thornburg Masashi Sugiyama Andreas Spanias SenSIP Center School of ECEE & School of Arts Media and Engineering Arizona State University Department of Computer Science Tokyo Institute of Technology & JST

ISBN: (纸本)9781424442959;9781424442966

Automatically annotating or tagging unlabeled audio files has several applications, such as database organization and recommender systems. We are interested in the case where the system is trained using clean high-quality audio files, but most of the files that need to be automatically tagged during the test phase are heavily compressed and noisy, for instance if they were captured on a mobile device. In this situation we assume the audio files follow a covariate shift model in the acoustic feature space, i.e., the feature distributions are different in the training and test phases, but the conditional distribution of labels given features remains unchanged. Our method uses a specially designed audio similarity measure as input to a set of weighted logistic regressors, which attempt to alleviate the influence of covariate shift. Results on a freely available database of sound files contributed and labeled by non-expert users, demonstrate effective automatic tagging performance.

关键词： Importance KLIEP Acoustic signal analysis Database query processing Audio Files Audio Signal analysis AUTOMATIC Shift Eigenvector TAGGING database organization data querying Recommender systems similar measure

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Coded strobing photography for high-speed periodic events

Coded strobing photography for high-speed periodic events

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Imaging Systems, IS 2010

作者： Reddy, Dikpal Veeraraghavan, Ashok Raskar, Ramesh Department of Electrical and Computer Engineering University of Maryland College Park MD 20742 United States Mitsubishi Electric Research Labs 201 Broadway Cambridge MA 02139 United Kingdom MIT Media Lab Massachusetts Institute of Technology Cambridge MA 02139 United Kingdom

We capture high-speed periodic events using a low-frame rate camera by temporally modulating the shutter (coded strobing) and demonstrate that the Nyquist rate constraint can be imposed on strobe-rate rather than the ...

ISBN: (纸本)9781557528926

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