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Image denoising algorithm based on PSO optimizing structuring element 基于粒子群优化结构元素的图像去噪算法
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6243044
Zhu Youlian, Huang Cheng
{"title":"Image denoising algorithm based on PSO optimizing structuring element","authors":"Zhu Youlian, Huang Cheng","doi":"10.1109/CCDC.2012.6243044","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6243044","url":null,"abstract":"A new image denoising algorithm is proposed to deal with information loss in the conventional morphological image denoising process. The algorithm uses median operation to improve morphological operations' performance, which called median closing operation. It gives a mathematical model of the structuring element unit (SEU) composed of a zero square matrix. The particle swarm optimization (PSO) algorithm is employed for choosing the size of structuring element. The value of peak signal to noise ratio (PSNR) is taken as a fitness function, and the transformed value of the particle's position is taken as the size of the structuring element. Experimental results show that the denoising performance of the proposed algorithm has obvious superiority than conventional morphological algorithm. It can overcome the inherent deficiency of conventional morphological operations, adaptively obtain the size of the structuring element, and effectively remove impulse noise from images, especially for the image whose signal to noise ratio value is relatively low. So it has a good prospect in image processing.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116669050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Color target tracking strategy in Binocular stereo vision based on Camshift algorithm 基于Camshift算法的双目立体视觉彩色目标跟踪策略
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244488
Guo Baiwei, Feng Xiaobin
{"title":"Color target tracking strategy in Binocular stereo vision based on Camshift algorithm","authors":"Guo Baiwei, Feng Xiaobin","doi":"10.1109/CCDC.2012.6244488","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244488","url":null,"abstract":"Using camshift algorithm to track color target, proposed a strategy worked when the target is lost or parts of it is blocked. By changing the search window's size, it is possible to achieve real-time capture. Experiments show that this strategy can catch the target quickly and efficiently. Analysis is done for camshift algorithm applied to binocular stereo vision measurement. An efficient tracking process is proposed, using the strategy of catch the target after losing.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116771456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Coordinated path-following and attitude control for multiple surface vessels via curve extension method 基于曲线扩展法的多水面舰艇协调路径跟踪与姿态控制
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6242926
Yangyang Chen, Yu-Ping Tian
{"title":"Coordinated path-following and attitude control for multiple surface vessels via curve extension method","authors":"Yangyang Chen, Yu-Ping Tian","doi":"10.1109/CCDC.2012.6242926","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6242926","url":null,"abstract":"This paper addresses the problem of coordinated path-following and attitude control design for a group of fully actuated surface vessels on given convex loops. By incorporating the curve extension design with the consensus-based design we propose a solution to the formation and attitude coordination control. It removes the assumption of nonzero total speed of each vessel that is presented in the literature. With the help of invariance-like theorem and the extension of Barbalat's lemma, it is proved that the designed cooperative control system is asymptotically stable if the bidirectional commutation topology is connected. An simulation example is presented as a proof of concept.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117219565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Hopf bifurcation analysis to dynamic voltage stability of flexible AC transmission system 柔性交流输电系统动态电压稳定性的Hopf分岔分析
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244101
Yan Wang, Yuanwei Jing, Wei-Lun Zhao, Hongtao Yu
{"title":"Hopf bifurcation analysis to dynamic voltage stability of flexible AC transmission system","authors":"Yan Wang, Yuanwei Jing, Wei-Lun Zhao, Hongtao Yu","doi":"10.1109/CCDC.2012.6244101","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244101","url":null,"abstract":"For a single-machine infinite-bus system with thyristor controlled series capacitor(TCSC), a new approach is proposed to solve Hopf bifurcation point of dynamic voltage stability by reduced order, and the feature of the proposed approach is to reduce the order of a (3n+2)-dimensional Newton iterative equations to a (n+2)-dimensional linear equations. Comparing with traditional direct calculation method, the calculation burden can be mitigated and avoided curse of dimensionality, so it is suitable to the analysis and calculation of dynamic voltage stability of a single-machine infinite-bus system. By the nonlinear analysis software package-Auto97, the dynamic voltage stability of a single-machine infinite-bus system is studied in detail with the method proposed in this paper. The test in this example shows that the bifurcation theory can be more accurate than the linearization method in analyzing the dynamical stability near the critical point of the power systems.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117347163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Weights and structure determination of feed-forward two-input neural network activated by chebyshev polynomials of class 2 2类切比雪夫多项式激活的前馈双输入神经网络的权值和结构确定
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244175
Yunong Zhang, Xiaotian Yu, Dongsheng Guo, Jun Yu Li, Zhengping Fan
{"title":"Weights and structure determination of feed-forward two-input neural network activated by chebyshev polynomials of class 2","authors":"Yunong Zhang, Xiaotian Yu, Dongsheng Guo, Jun Yu Li, Zhengping Fan","doi":"10.1109/CCDC.2012.6244175","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244175","url":null,"abstract":"Based on the theory of polynomial interpolation and approximation, a new feed-forward two-input neural network activated by a group of Chebyshev polynomials of Class 2 (i.e., TINN-CP2) is constructed and investigated in this paper. To overcome the weaknesses of conventional back-propagation (BP) neural networks, a weights-direct-determination (WDD) method is exploited to obtain the optimal linking weights of the proposed neural network directly. Furthermore, a new structure-automatic-determination (SAD) algorithm is developed to determine the optimal number of hidden-layer neurons of the TINN-CP2, and thus the weights-and-structure-determination (WASD) algorithm is built up. Numerical studies further substantiate the efficacy and superior abilities of the proposed TINN-CP2 in approximation, denoising and prediction, with the aid of the WASD algorithm which obtains the optimal number of hidden-layer neurons of the TINN-CP2.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121023126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Video flame detection algorithm based On multi-feature fusion technique 基于多特征融合技术的视频火焰检测算法
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244002
Zhang Xi, Xu Fang, Song Zhen, Mei Zhibin
{"title":"Video flame detection algorithm based On multi-feature fusion technique","authors":"Zhang Xi, Xu Fang, Song Zhen, Mei Zhibin","doi":"10.1109/CCDC.2012.6244002","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244002","url":null,"abstract":"Video based fire detection of flame is potentially an applicable and promising technique in the field of pattern recognition. Over traditional methods, video based fire detection offers many advantages in large industrial applications. However, most current video flame detection algorithms on the features of color spectrum and spatial augmentation are always successful in extracting the flame region from environment in the image, while helpless against the potential interference sources, such as heat or light sources, motion resembling flame and moving operations of people and vehicles. For this reason, we put forward an intelligent video flame detection algorithm to distinguish flame from other lighting nuisances by a designed fire risk assessment model based on the analysis of static and dynamic characteristics of flame sharp angle and flame contour. The experimental results show that the solution has higher acceptance level of false/nuisance alarms with widely applied prospect.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127104542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Target assignment and sorting for multi-target attack in Multi-aircraft coordinated based on RBF 基于RBF的多机协同多目标攻击目标分配与排序
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244311
Fu Li, Wang Qi, Xu Jin, Zhou Yuandong, Zhu Kun
{"title":"Target assignment and sorting for multi-target attack in Multi-aircraft coordinated based on RBF","authors":"Fu Li, Wang Qi, Xu Jin, Zhou Yuandong, Zhu Kun","doi":"10.1109/CCDC.2012.6244311","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244311","url":null,"abstract":"In this paper, we make the UAV air combat as the background. Based on air combat situation and target's air combat ability, the threat evaluation model of UAV air combat is established, then it uses RBF neural network to identify complex nonlinear relation between the types of threats to get the overall threat situation. In the course of air combat, we get the threat situation index of air combat, and then get the target threat matrix through RBF neural network. Finally, it uses the matrix method to get the result of target assignment and sorting. The experimental results show that RBF neural network can successfully approximate the weights of all the types of threats.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127462548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Denoising of Generator Output Power based on the wavelet transform 基于小波变换的发电机输出功率去噪
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244524
Yang Yang, Xiuqin Wang, Di Zhang
{"title":"Denoising of Generator Output Power based on the wavelet transform","authors":"Yang Yang, Xiuqin Wang, Di Zhang","doi":"10.1109/CCDC.2012.6244524","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244524","url":null,"abstract":"Real-time Generator Output Power is an important parameter in the thermal power which shows the operation status of the adjusting and control equipments. Wavelets are mathematical functions that cut up data into different frequency components, and then study each component with a resolution matched to its scale. In this paper, we used the wavelet transform to do the signal denoising of the Generator Output Power which makes the data curve more easily understood without rapid fluctuation. The wavelet used here was “db3”. The structure of multilevel 1-D wavelet in level-5 decomposition was used in the experiment. The results show that the data analysis using wavelet transform can decrease the rapid fluctuation of the data, which make the data mining more easily in the long-time. The method can be widely used in the long-time data storage, research and prediction.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125003285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Robust stability and stabilization for nonlinear uncertain discrete-time descriptor switched systems 非线性不确定离散广义切换系统的鲁棒稳定性与镇定
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244642
Wei Wang, Shuping Ma, Jie Wang, Shuai Song
{"title":"Robust stability and stabilization for nonlinear uncertain discrete-time descriptor switched systems","authors":"Wei Wang, Shuping Ma, Jie Wang, Shuai Song","doi":"10.1109/CCDC.2012.6244642","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244642","url":null,"abstract":"In this paper, the robust stability and robust state feedback stabilization problems for a class of nonlinear discrete-time descriptor switched systems with parameter uncertainties are discussed. First, based on Lyapunov theory and the existence theorem of hidden function, a linear matrix inequality (LMI) sufficient condition is developed which guarantees that the nonlinear discrete-time descriptor switched systems are regular, causal, have unique solution in a neighborhood of the origin, and are uniformly asymptotically stable. Then, with this condition, a robust stability condition for uncertain systems is obtained, and the design method of robust state feedback controllers is given. Last, a numerical example is provided to illustrate the effectiveness of the proposed methods.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125151635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Data-driven subspace identification and predictive control for a NIAT process platform NIAT过程平台的数据驱动子空间识别与预测控制
2012 24th Chinese Control and Decision Conference (CCDC) Pub Date : 2012-05-23 DOI: 10.1109/CCDC.2012.6244263
Lu Wang, Ning Li, Shaoyuan Li
{"title":"Data-driven subspace identification and predictive control for a NIAT process platform","authors":"Lu Wang, Ning Li, Shaoyuan Li","doi":"10.1109/CCDC.2012.6244263","DOIUrl":"https://doi.org/10.1109/CCDC.2012.6244263","url":null,"abstract":"In this paper, a data-driven subspace identification method and a model predictive controller are presented for a NIAT platform. First, a data-driven subspace identification method for the process modeling is used. Based on the model, we design a predictive controller. Then considering SISO/ TITO cases of the platform respectively. Both the modeling and control effectiveness of the proposed methods are validated by the experiments' results.","PeriodicalId":345790,"journal":{"name":"2012 24th Chinese Control and Decision Conference (CCDC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125274103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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