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International Conference on Intelligence Science and Information engineering

作者： Ni, Shaobo Liu, Lei Wang, Zhishen Wang, Zirui Beijing Institute of Technology School of Aerospace Engineering Beijing 100081 China Beijing Aerospace Automatic Control Institute Beijing 100854 China Department of Control Science and Engineering Key Laboratory of Education Ministry for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan 430074 China

ISBN: (纸本)9780769544809

An Echo State Network (ESN) based predictive control method for aircraft system is proposed to increase the flight quality. Aerocraft is a nonlinear and time-varying system and its controllers are usually designed by trajectory linearization method. Furthermore, the predictive controller is designed to adjust the current controlled variables by the trend of output to improve the quick responsiveness and traceability. Then, the stability of the system is proved by Lyapunov function. Finally, the numerical simulation results of step-response and attitude tracking illustrate the robustness and effect of the method. © 2011 IEEE.

关键词： controllers

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On collusion attack for digital fingerprinting

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Journal of Information Hiding and Multimedia Signal Processing 2011年第4期2卷 366-376页

作者： Li, Xin-Wei Guo, Bao-Long Wu, Xian-Xiang Li, Lei-Da Institute of Intelligent Control and Image Engineering Xidian University 2 South Taibai Road Xi'an 710071 China School of Information and Electrical Engineering China University of Mining and Technology Xuzhou 221116 China

Collusion attack is a challenge issue for digital fingerprinting, and it is very beneficial to study for fingerprinting design. Two models for linear and non-linear collu- sion attack are constructed from the angles of owner and colluder in the paper. Through theory and simulation analysis in fingerprints embedding domain and non-embedding do- main some conclusions are obtained: (1) The attack effects in embedding domain and non-embedding domain are same for average collusion attack;(2) The attack effects in embedding domain is stronger than that in non-embedding domain for maximum attack, minimum attack and randneg attack;(3) The attack effects in embedding domain and non-embedding domain are similar for median attack, min-max attack and modneg attack;(4) The two models have the similar attacks effects in embedding domain. We have also studied the relationship between the quality of colluded image and collusion attack. Large experimental results prove the correctness of the received conclusions, which is very helpful for fingerprinting design and system analysis. © 2011 ISSN 2073-4212.

关键词： Digital fingerprinting Embedding domain Linear collusion Non-embedding domain Nonlinear collusion

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Design of the emergency satellite commanding and consultation system

Design of the emergency satellite commanding and consultatio...

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2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, CSQRWC 2011

作者： Peng, Wenbiao Liang, Huijun Yi, Qinglin College of Electrical Engineering and Renewable Energy Institute of Intelligent Vision and Image Information China Three Gorges University Hubei 443002 China Research Center of the Geological Disasters Engineering Prevention and Control China Three Gorges University Hubei 443002 China

ISBN: (纸本)9781424497904

In general, emergency satellite commanding and consultation system should include the commanding system, the consultation system, the mobile communication system, the microwave transferring systems and the information processing systems. This paper gives the system design which is a hybrid communication network working as a star network or a building on-demand network. Using of intelligent satellite communication network - Viper sat system, a variety of services working in the field can access into the commanding center network, including telephone switching system, video conference system and integrated services data communications network. The system should not only improve the ability of the rapid response, the commanding and controlling, the dealing with of the emergency events at all levels departments, but also can provide the site information and the decision-making advice timely and safely,, so it is efficient to meet the needs of their work on emergency management. By the way, all the equipment and related integrated products in the system has been tested field in reliability, practicality, portability, and so were able to meet the demand. © 2011 IEEE.

关键词： Mobile telecommunication systems

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Infrared and color visible images fusion based on color transfer and information entropy

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Guangxue Xuebao/Acta Optica Sinica 2011年第SUPPL.1期31卷

作者： Zhang, Qiang Guo, Baolong Intelligent Control and Image Engineering Institute School of Electromechanical Engineering Xidian University Xi'an Shaanxi 710071 China

Combining with the lαβ color space and the nonsubsampled contourlet transform (NSCT), a novel fusion algorithm for infrared and color visible images based on the color transfer and information entropy was proposed. Firstly, the R, G, B bands of the color visible image were averaged and then the intensity component image was attained. Secondly, the attained component image and the infrared image were merged based on the NSCT and then a grayscale fused image was obtained. Lastly, a color transfer method based on the lαβ color space was employed to transfer the color information of the color visible image into the fused grayscale image and then the final fused color image wss attained. When the grayscale visible image and the infrared image arefused, according to the physical characters of the infrared image, a weighted averaging scheme based on the local area mean and local area information entropy was proposed for the lowpass subband coefficients. As well, according to the distribution differences of the noise and the geometric characters of the image in the NSCT domain, a selection principle based on the local area direction entropy and the local area energy was proposed for the bandpass directional subband coefficients. Experimental results demonstrated that the proposed algorithm not only can extract the abundant background information of the visible image and the target localization information of the infrared image, but also can make the fused color image maintain the nature color information of the visible image as much as possible.

关键词： image fusion

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Simulation study and characteristics analysis of the ERT sensor

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ICIC Express Letters, Part B: Applications 2011年第4期2卷 865-871页

作者： Wang, Pai Guo, Baolong Li, Nan Institute of Intelligent Control and Image Engineering Xidian University No. 2 South Taibai Road Xi'an 710071 China Department of Mechanical Engineering and Applied Electronics Technology Beijing University of Technology No. 5 South Zhongguancun Street Haidian District Beijing 100081 China

3D simulation of an ERT sensor field is established using COMSOL and MATLAB 7.0 to study the limitations of an ERT system's sensor field and determine the influence of electrode size and geometry on the established field. As a result of the analysis, a pointed electrode array and a rectangular-shaped electrode array were designed and their frequency characteristics were tested by measuring conductance in milk flows. The results indicate that increasing the width and height of the electrode is beneficial to improving the axial and radial distribution of the sensing field. Increasing the electrode area can reduce "connection resistance" and enable the ERT sensor to have more stable frequency characteristics and improve the SNR of the ERT system. © 2011 ISSN 2185-2766.

关键词： MATLAB

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Capacitive sensor design for an automatic car-wiper system

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ICIC Express Letters, Part B: Applications 2011年第4期2卷 879-884页

作者： Li, Nan Han, Ying He, Cunfu College of Mechanical Engineering and Applied Electronics Technology Beijing University of Technology No. 5 South Zhongguancun Street Haidian District Beijing 100081 China Institute of Intelligent Control and Image Engineering Xidian University No. 2 South Taibai Road Xi'an 710071 China

A new structure of capacitive sensor used for an automatic car-wiper system is presented. It aims to develop a low-cost sensor with high sensitivity and robustness. The working principles of the sensors used for liquid on the surface detection are introduced. Three types of proximity capacitive sensors of different shapes are designed under the same outer diameter. The parameters affecting the sensor signal strength and measurement sensitivity are discussed based on the performance analyzing of the sensors. The electric field distributions of the sensors are simulated and the fringe capacitance of the sensors is measured and analyzed. For the flower-shaped sensor, the noise analysis is presented and the measurement results are given. The effects of the excitation's frequency are experimented and the optimum frequency of the excitation is determined. The experimental results indicate the validity and importance of the capacitive sensing technique which can be used for liquid detection on windshield of vehicles, and the new structure of the sensor has greater measurement performance, especially in signal strength and the sensitivity. © 2011 ISSN 2185-2766.

关键词： Capacitive sensors

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Universal image steganalysis against spatial-domain steganography based on energy distribution of singular values

Universal image steganalysis against spatial-domain steganog...

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7th International Conference on Information Technology and Application, ICITA 2011

作者： Shojaei-Hashemi, Anahita Soltanian-Zadeh, Hamid Ghaemmagham, Shahrokh Kamarei, Mahmoud School of Electrical and Computer Engineering College of Engineering University of Tehran Tehran Iran Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Image Analysis Laboratory Department of Radiology Henry Ford Health System Detroit MI United States Electronics Research Institute Sharif University of Technology Tehran Iran

ISBN: (纸本)9780980326741

A passive image steganalysis method is proposed to universally detect spatial-domain steganography schemes. It is shown to have better performance than universal steganalyzers known to be powerful in spatial domain, including the WFLogSv and the WAM methods. This level of accuracy is the result of improving the WFLogSv steganalyzer by considering a more comprehensive relationship between the singular values of each image block and the linear correlation of the rows and the columns. That is, instead of the closeness of the lower singular values to zero, the energy distribution of the singular values is investigated. An innovative measure is proposed for this investigation, which is inspired from arithmetic mean-geometric mean inequality. Experimental results confirm the supremacy of the proposed steganalysis scheme over its counterparts.

关键词： Singular value decomposition

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Universal steganalysis based on local prediction error in wavelet domain

Universal steganalysis based on local prediction error in wa...

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7th International Conference on intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2011

作者： Shojaei-Hashemi, Anahita Mehdipour-Ghazi, Mostafa Ghaemmaghami, Shahrokh Soltanian-Zadeh, Hamid School of Electrical and Computer Engineering College of Engineering University of Tehran Tehran Iran Electronics Research Institute Sharif University of Technology Tehran Iran Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Image Analysis Laboratory Department of Radiology Henry Ford Health System Detroit MI United States

ISBN: (纸本)9780769545172

A passive universal image steganalysis method is proposed that is shown to be of higher detection accuracy than existing truly blind steganalysis methods including Farid's and the WAM. This is achieved by improving some weaknesses of Farid's steganalysis scheme in feature extraction, that is, instead of deriving an over-determined equation system for each sub band of the wavelet decomposition, the sub bands are divided into overlapping blocks and an over-determined equation system is constructed for each block. To guarantee the existence of finite answers, the over-determined equation systems are solved in a way different from Farid's by using Moore-Penrose pseudo-inverse concept. Further improvement to the performance is achieved by adding diagonal directions and increasing the number of moments. The comparative evaluations confirm the superiority of the proposed method over prevalent blind steganalysis schemes. © 2011 IEEE.

关键词： Wavelet decomposition

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The Analytical Algorithm of Program Quaternion in the Arbitrary Spacecraft Attitude-Adjusting control

The Analytical Algorithm of Program Quaternion in the Arbitr...

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2011 3rd International Asia Conference on Informatics in control, Automation and Robotics(CAR 2011)

作者： Shaobo Ni Jianwu Wu Jiayuan Shan Lei Liu Mao Su School of Aerospace Engineering Beijing Institute of technology Beijing Aerospace Automatic Control Institute Key Laboratory of Education Ministry for Image Processing and Intelligent Control Department of Control Science & Engineering Huazhong University of Science and Technology

The analytical algorithm of program quaternion is studied,aiming at the problem of the arbitrary spacecraft attitude-adjusting *** also provides the analytical constructor method of the program quaternion for any given initial quaternion and angle velocity,terminal quaternion and angle *** advantages of this method are as follows:(1)Good *** of the initial and terminal conditions are arbitrary;(2)Simple *** calculation process only involves the simple algebraic operation;(3)Easy to *** using the program quaternion model,the time consumption in the process of spacecraft attitude adjustment and the maximum angular velocity can be optimized *** to the Mathematical simulation results,the program quaternion tracking can be realized by a simple PD control law.

关键词： Spacecraft Dynamic Modeling Attitude control Quaternion

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Data Model Driven Architecture (DMDA)

Data Model Driven Architecture (DMDA)

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International Workshop on Advanced Computational Intelligence (IWACI)

作者： Chen Chen Xueguang Chen Hong Liu Institute of Systems Engineering Huazhong University of Science and Technology Wuhan China Key Laboratory for Image Processing and Intelligent control Huazhong University of Science and Technology Wuhan China

Based on the current development of Model Driven Architecture (MDA) in Enterprise Information System (EIS), the paper proposes a DMDA, a new development architecture to improve EIS development speed and quality. The basic idea of the DMDA is to take advantage of formal description, decomposition and re-use on EIS development process to let computer understand development demands of developers and then consequently generate some business models having nothing to do with specific technical realization, combine with specific technical basic platform to finally generate the EIS meeting actual demands based on data model. The practice proves the architecture is capable of simplifying EIS development difficulty, expediting application and development speed, improve development quality and achieve the rapid development purpose.

关键词： Data models Business Unified modeling language Computational modeling Analytical models Computers

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