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5th International Conference on Information Assurance and Security, IAS 2009

作者： Meng, Fan-Jie Guo, Bao-Long Guo, Lei Institute of Intelligent Control and Image Engineering Xidian University Xi'an 710071 China 705 Research Institute China Shipbuilding Industry Corporation Xi'an China

ISBN: (纸本)9780769537443

Interest points are local properties of an image with high informational content. In this paper, we present a new method for image retrieval based on color and distribution of interest points. Firstly, we use Harris corner detector to extract interest points. Secondly, we design a 2D histogram based on interest points to describe an image, which not only takes the local color feature into consideration, but also the space distribution information of interest points. With robustness to image rotation and translation, the 2D histogram avoids the shortcoming of losing the space distribution information in color histogram. Finally, we employ the weighted distance between two 2D histograms to discriminate the similarity between two images. Lots of experimental results based on a database containing 1100 images demonstrate our proposed method has good performance. © 2009 IEEE.

关键词： image retrieval

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Aerial video registration combining optimal gradient filters and projective invariant

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Guangxue Jingmi Gongcheng/Optics and Precision engineering 2012年第3期20卷 651-660页

作者： Yi, Meng Guo, Bao-Long Yan, Chun-Man Institute of Intelligent Control and Image Engineering School of Electromechanical Engineering Xidian University Xi'an 710071 China

As the Harris detector can produce false and unstable corners, and obtained matching points have different accuracies in aerial video registration, an aerial video registration algorithm using optimal gradient filters and projective invariant was proposed. Firstly, a Harris detector based on optimal gradient filters was presented to determine the location of corners, and the locally most stable points were selected to be matching points. Then, the Delaunay triangulation was used to perform the initial matching. Finally, the most "useful" matching points that best satisfied the cross-ratio invariant were presented to estimate the geometry transformation and finish the image registration. Experiment results show that the proposed method by the optimal gradient filters and cross-ratio invariant can realize the registration between the frames, and the average geometric fidelity error is 0.869 for 8 sets of the unmanned video sequences with a resolution of 320 pixel×240 pixel. The method can capture moving objects effectively.

关键词： image registration

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Robust flocking for non-identical second-order nonlinear multi-agent systems

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Autonomous intelligent Systems 2021年第1期1卷 81-90页

作者： Xiuxian Li Housheng Su Li Li Department of Control Science and Engineering College of Electronics and Information Engineeringand Shanghai Research Institute for Intelligent Autonomous SystemsTongji UniversityShanghai 200092China Institute for Advanced Study Tongji UniversityShanghai 200092China School of Automation Image Processing and Intelligent Control Key Laboratory of Education Ministry of ChinaHuazhong University of Science and TechnologyLuoyu Road 1037Wuhan 430074China

This paper investigates the robust flocking problem for second-order nonlinear systems with a leader and external *** contrast with most of second-order systems in the literature,the intrinsic dynamics here are nonlinear and non-identical that depend not only on the velocity but also on the position,which is more ***,the interaction topology is undirected and *** that the leader’s velocity may be constant or time-varying,two distributed flocking control laws have been proposed for two cases to make the differences of the velocities between all followers and the leader approach to zero *** proposed distributed flocking control laws are both model-independent which results in the effectiveness of the controllers to cope with the different intrinsic dynamics of the followers and the leader under some assumptions on boundedness of several *** example is given to illustrate the validity of the theoretical results.

关键词： Flocking Multi-agent systems Second-order nonlinear systems Non-identical dynamics

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A multi-agent coordinated planning approach for deadline required emergency response tasks

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IET control Theory and Applications 2015年第3期9卷 447-455页

作者： Zhou, Chao Wang, Hongwei Zhuo, Hankz Hankui Key Laboratory of Image Processing and Intelligent Control of Education Ministry Institute of Systems Engineering Huazhong University of Science and Technology Wuhan430074 China School of Advanced Computing SunYat-sen University Guangzhou510006 China

This study investigates the emergency decision-making problem in a multi-agent system. Departments are modeled as agents to perform coordinated planning to obtain a global action plan with a short execution time constrained by a prescribed deadline. A novel multi-agent planning approach is proposed to coordinate for the solution among agents in the system. The approach consists of two stages. For the first stage, a coordinated planning and scheduling method is designed to generate a candidate global action plan. In this plan, durative actions are assigned to proper time intervals with the consideration of temporal relationships among agents. For the second stage, a coordination mechanism based on local heuristics is proposed to reduce the global time cost of the candidate plan to satisfy the deadline. An experimental study of emergency evacuation problem is conducted to demonstrate the effectiveness and efficiency of the proposed approach. © 2015 The Institution of engineering and Technology.

关键词： Multi agent systems

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Model reference decoupling controller design via LMI optimization

Model reference decoupling controller design via LMI optimiz...

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2012 International Conference on Modelling, Identification and control, ICMIC 2012

作者： Wang, Zhishen Zheng, Zongzhun Liu, Lei Wang, Yongji Key Laboratory of Ministry of Education for Image Processing and Intelligent Control Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan China Beijing Aerospace Automatic Control Institute Beijing China

ISBN: (纸本)9780956715715

This paper proposed a H∞ based controller design method for MIMO system. We use the bound real lemma to design the controller when the reference model is given. The BMI (Bi-linear Matrix Inequality) problem is turned into a LMI (Linear Matrix Inequality) problem by congruence transformation and variables substitution. Given a decoupled reference model, the decoupling controller can be obtained by computer. We apply the method to a linearized vehicle model and the simulation results show the effectiveness of the approach. © 2012 Huazhong Univ of Sci & Tec.

关键词： MIMO systems

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Proximity Capacitance Sensor Design for Noncontact Liquid Detection

Proximity Capacitance Sensor Design for Noncontact Liquid De...

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Congress on image and Signal Processing, CISP

作者： Nan Li Bao-long Guo Pai Wang Institute of Intelligent Control and Image Engineering School of Electrical and Electronic Engineering Xidian University Xi'an China Institute of Intelligent Control and Image Engineering

The proximity capacitance sensor is presented to be a detector for liquid detection on membrane surface. Background of sensing technique was introduced in this paper. Three types of capacitance sensor in different shapes are designed and tested. According to the analysis, the parameters affecting the sensor performance and sensitivities are concluded. COMSOL software is used to simulate the electric distribution and penetration depth of the capacitance sensors. Associated with MATLAB programs, the performance of the designed sensor was simulated and compared. The experimental results proven the feasibility of the designed capacitance sensors used for liquid detection.

关键词： Capacitance Capacitive sensors Optical sensors Biomembranes Infrared detectors Costs intelligent sensors Infrared sensors Aerospace industry Electrodes

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An approach with nested partition for resource-constrained project scheduling problem

An approach with nested partition for resource-constrained p...

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19th International Conference on Industrial engineering and engineering Management: Assistive Technology of Industrial engineering

作者： Liu, Zhen-Yuan Yu, Wen-Min Institute of Systems Engineering Huazhong University of Science and Technology Wuhan China Key Laboratory of Education Ministry for Image Processing and Intelligent Control Wuhan China

ISBN: (纸本)9783642383908

A time-based nested partition (NP) approach is proposed to solve resource-constrained project scheduling problem (RCPSP) in this paper. In iteration, one activity is selected as the base point of which the finish time interval calculated by CPM is divided into two parts to form two subregions on the basis of the promising region of the last iteration. Then sampling is taken in both subregions and the surrounding region to determine the promising region and aggregate the other as the surrounding region of this iteration so that whether the backtracking or the moving operation being performed is determined. Double justification is also performed in iteration to improve the results. The results of numerical tests on PSPLIB show the effectiveness and time-efficient of the proposed NP method. © 2013 Springer-Verlag Berlin Heidelberg.

关键词： Scheduling

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Combining interest point and invariant moment for geometrically robust image watermarking

Combining interest point and invariant moment for geometrica...

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作者： Li, Lei-Da Guo, Bao-Long Guo, Lei Institute of Intelligent Control and Image Engineering Xidian University Xi'an 710071 China National Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing 100080 China

This paper presents a new robust image watermarking scheme for resisting both traditional and geometric attacks. A watermark synchronization scheme is first presented using image features. Harris interest points are first extracted from the scale normalized image and the locally most stable points are employed to generate some non-overlapped circular regions. Watermark synchronization is achieved using these local circular regions. Thereafter, the rotation invariant pseudo-Zernike moments (PZMs) are computed over each circular region and the watermark signal is composed of the PZM vectors extracted from all the local regions. Then the PZM vectors are modified and reconstructed, producing some error images. The watermark is embedded by adding the error images into the corresponding local circular regions in spatial domain directly. During watermark detection, local circular regions are first extracted from the distorted image and PZMs are computed over each local region. A minimum distance decoder is proposed to detect the watermark blindly. Simulation results on Stirmark 4.0 show that the watermark is robust against traditional signal processing attacks, rotation, scaling, flipping, Stirmark random bending as well as combined attacks.

关键词： Synchronization

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Object Classification Based on Radon Transform

Object Classification Based on Radon Transform

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作者： Jing Ma Baolong Guo Institute of Intelligent Control and Image Engineering Xidian University

With the development of science and technology, the speed of taking and transmitting images has greatly improved, so that the target recognition technology based on remote sensing image becomes a reality. According to the deficiencies of the previous recognition methods, a method of automatic threshold is proposed for getting more accurate features about the positioned object, then the feature extraction by SVM classifier for classification and recognition. Experiments demonstrate the effectiveness of the current recognition system. The system provides a good performance in aircraft recognition and classification, at the same time it also offers better robustness.

关键词： Automatic Target Recognition(ATR) Radon Transform Support Vector Machine(SVM) Classifier

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A new and effective image retrieval method based on representative regions

A new and effective image retrieval method based on represen...

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2016年土木、建筑与环境工程国际学术会议

作者： Dalong Shan Fanjie Meng Ruixia Shi Yanlong Wang Pingping Zeng Institute of Intelligent Control and Image Engineering Xdian University

ISBN: (纸本)9781138065840

In this paper,we propose a new image retrieval system based on representative ***,image is segmented to several categories using K-means and Affinity Propagation(AP) clustering methods,and the largest region of every category is found as the representative ***,color and texture features of the representative regions are obtained through the HSV color histogram and Local Binary Pattern(LBP).Representative Region Matching(RRM) algorithm is used for calculating the distance between the query image and database images combining color,texture features with location,and area *** results show that the proposed method is more prominent than retrieval using some of the existing methods.

关键词： A new and effective image retrieval method based on representative regions image

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