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Motion vehicles tracking in intelligent transportation visual surveillance systems

Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and technology 2012年第SUPPL.2期36卷 216-222页

作者： Wu, Lin-Feng Xiong, Gang Qian, Shou-Yi Xie, Li Zhejiang Provincial Key Lab. of Information Network Technology Department of Information Science and Electronic Engineering Zhejiang University Hangzhou 310027 China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Cloud Computing Industrial Technology Innovation and Incubation Center Dongguan Research Institute of CASIA Chinese Academy of Sciences Dongguan 523808 China Wenzhou Research Institute of Electronics and Information Wenzhou 325003 China

In terms of the difficulty of vehicle tracking in complex environment of the visual surveillance system, an object tracking algorithm is proposed for the applications in practical visual surveillance systems for intelligent traffic. A block-based Gaussian mixture background modeling method for object detection is presented to reduce the computational complexity of moving vehicle object abstraction. An adaptive tracking algorithm fused with color features and texture features is described to better adapt the traffic scene variation. The experimental results show that the proposed algorithm can effectively deal with the complex urban traffic conditions and the tracking performance is better than the conventional particle filter method and single feature based non-adaptive object tracking method.

关键词： Tracking (position)

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Recovering high dynamic range radiance maps from in vivo fluorescence molecular imaging

Recovering high dynamic range radiance maps from in vivo flu...

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International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC)

作者： Bofan Song Wei Jin Qinhan Jin Ying Mu Research Center of Analytical Instrumentation Institute of Cyber-System and Control State Key Laboratory of Industrial Control Technology University of Zhejiang Hangzhou China

ISBN: (纸本)9781457705359

A recent development in molecular imaging is in vivo fluorescence molecular imaging with near-infrared light, which has extraordinary significance in early diagnosis of the disease. This paper presents a method of recovering high dynamic range radiance maps at in vivo fluorescence molecular imaging technology. Use differently exposed photographs to recover the response curve of the imaging process, with the known curve, can fuse a single, high dynamic range radiance map whose pixel values are proportional to the true fluorescence signal values in the scene. Will contribute to quilitative and quatitative analysis, offer better observation, and get information much more accurate and true. Have great significance for analysis and diagnosis.

关键词： Dynamic range Molecular imaging Charge coupled devices Fluorescence In vivo Instruments

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LMI condition of robust D stability for singular systems with polytopic uncertainties

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ICIC Express Letters 2011年第3期5卷 783-789页

作者： Bai, Jianjun Su, Hongye Gao, Jinfeng State Key Laboratory of Industrial Control Technology Institute of Cyber-System and Control Zhejiang University Hangzhou 310027 China Institute of Automation Zhejiang Sci-Tech University Hangzhou 310018 China

The robust D stability analysis problem for a class of singular systems is considered in this paper. With the introduction of some free matrices, a new necessary and sufficient condition for a singular system to be D stable is proposed in terms of linear matrix inequalities (LMIs). This result is extended to the singular systems with polytopic uncertainties and a sufficient condition is obtained for the uncertain singular systems to be robust D stable using the parameter-dependent Lyapunov function method. Numerical example shows the effectiveness of the obtained approach. © 2011 ISSN 1881-803X.

关键词： Linear matrix inequalities

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Output error method for identification of multiple-model process with transition

Output error method for identification of multiple-model pro...

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作者： Zhao, Yu Huang, Biao Su, Hongye Chu, Jian State Key Lab. of Industrial Control Technology Institute of Cyber Systems and Control Zhejiang University Hangzhou 310027 China University of Alberta Canada Department of Chemical and Materials Engineering University of Alberta Edmonton AB T6G 2G6 Canada

This paper is concerned with the identification of multiple model process with transition using the output error (OE) method. Local multiple linear models with output error model structure are identified at fixed operating points first and then a global nonlinear model is approximated by interpolating the multiple linear models with exponential weighting functions. With all the obtained initial values of the system's parameters, nonlinear optimization strategy is implemented to find the optimal values of the parameters for both the local multiple models and their corresponding weighting functions. Finally a more accurate global model can be obtained. The effectiveness of the proposed approach is demonstrated through simulation examples. © 2011 Zhejiang University.

关键词： Errors

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The framework and implementation of Virtual Network Marathon

The framework and implementation of Virtual Network Marathon

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IEEE International Symposium on VR Innovation

作者： Zhang, Mingmin Xu, Mingliang Liu, Yong He, Gaoqi Han, Lizhen Lv, Pei Li, Yongqing State Key Lab of CADandCG Zhejiang University Hangzhou 310027 China Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 China School of Computer SandT East China University of Science and Technology China

ISBN: (纸本)9781457700538

In this paper, we present an exergame called VNM (Virtual Network Marathon). The VNM employs devised treadmills for immersive virtual running in local network or on Internet, which are embedded with various sensors for collecting the body performance data and connected with computers or Set-Top Box (STB) to synchronously control the player's avatar in the virtual game environment. VNM is implemented on a novel ISCAL model (Immersion, Scientificalness, Competitiveness, Adaptability and Learning) model for exergames design, The exercise time and intensity strictly conform to the physical exercise guidelines of the ACSM (American College of Sports Medicine), and a novel demonstration-based non-player modeling technique is employed to simulate the marathon race crowd. The VNM also allows players to learn the Chinese culture and the Olympic knowledge in the tour mode during or after the running exercise. The user study of VNM indicates that the proposed ISCAL model can be successfully applied in the exergame design. © 2011 IEEE.

关键词： Serious games

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An effective dynamic optimization method based on modified orthogonal collocation and reduced SQP

An effective dynamic optimization method based on modified o...

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International Symposium on Advanced control of industrial Processes (ADCONIP)

作者： Xinggao Liu Long Chen Yunqing Hu State Key Laboratory of Industrial Control Technology Institute of Industrial Control Department of Control Science & Engineering University of Zhejiang Hangzhou China

An effective dynamic optimization solution method based on the modified orthogonal collocation (mOC) and reduced successive quadratic programming (rSQP) is proposed, where the mOC is proposed to decrease the approximation error of the discrete optimal problem while traditional OC method converts the dynamic optimization problem to a regular but discrete nonlinear programming (NLP) problem, and the rSQP method is introduced to solve the resulting NLP problem in the reduced space of the independent variables. A classic benchmark of dynamic optimization problem is explored as demonstration, where the detailed comparative researches between the literature reports and the proposed method are carried out. The research results illustrate the efficiency of the proposed method.

关键词： Optimization Finite element methods Mathematical model Power system dynamics Dynamic programming Polynomials

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Recovering high dynamic range radiance maps from in vivo fluorescence molecular imaging

Recovering high dynamic range radiance maps from in vivo flu...

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2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, AIMSEC 2011

作者： Song, Bofan Jin, Wei Jin, Qinhan Mu, Ying State Key Lab. of Industrial Control Technology Institute of Cyber-System and Control Zhejiang University Hang Zhou China

ISBN: (纸本)9781457705366

关键词： Recovery

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Performance assessment of PID controller with time-variant disturbance dynamics

Performance assessment of PID controller with time-variant d...

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International Symposium on Advanced control of industrial Processes (ADCONIP)

作者： Mengfei Zhou Lei Xie Haitian Pan Shuqing Wang College of Chemical Engineering and Materials Science Zhejiang University of Technology Hangzhou China National Key Laboratory of Industrial Control Technology Institute of Cyber-Systems and Control University of Zhejiang Hangzhou China

A method is proposed for performance assessment of PID control loops subject to time-varying disturbance dynamics, which is often observed in industrial processes. The proposed method optimizes overall performance of the processes and presents a PID tradeoff curve which provides a useful lower bound on the achievable performance of the PID controller in terms of both the most significant disturbance rejection and the representative disturbance rejection. One can choose an optional benchmark to assess the PID control performance according to the tradeoff curve. The developed performance assessment technique is illustrated by simulation and industrial examples.

关键词： Benchmark testing Process control Transfer functions Materials Petroleum Furnaces Transient analysis

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Output error method for identification of multiple-model process with transition

Output error method for identification of multiple-model pro...

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International Symposium on Advanced control of industrial Processes (ADCONIP)

作者： Yu Zhao Biao Huang Hongye Su Jian Chu University of Alberta Canada State Key Laboratory of Industrial Control Technology Institute of Cyber Systems and Control University of Zhejiang Hangzhou China Department of Chemical and Materials Engineering University of Alberta Edmonton AB Canada

关键词： Interpolation Spline Optimization Data models Coolants Numerical models Zinc

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Robust stabilization for networked control systems with nonlinear perturbation

Robust stabilization for networked control systems with nonl...

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作者： Gao, Jinfeng Zhao, Xinlong Bai, Jianjun Su, Hongye Institute of Automation Zhejiang Sci-Tech University Hangzhou 310018 China State Key Laboratory of Industrial Control Technology Zhejiang University Yuquan Campus Hangzhou 310027 China

ISBN: (纸本)9789881725592

This note discusses the problem of stabilization for a class of uncertain networked control systems(NCSs) with nonlinear perturbation. By introducing a new model of NCSs with parameter uncertainty, network-induced delay, nonlinearity and data packet dropout in the transmission, a strict linear matrix inequality (LMI) criterion is presented for robust stabilization the uncertain nonlinear NCSs based on the Lyapunov stability theory. The maximum upper bound of the allowable delay can be obtained by solving the convex optimization problem of the corresponding LMI. Numerical example is provided to demonstrate the applicability and feasibility of the proposed algorithm. © 2011 Chinese Assoc of Automati.

关键词： Networked control systems

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