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2007 International Conference on Computational Intelligence and Security Workshops, CIS 2007

作者： Wang, Ying-Li Dai, Ling-Min Department of Automation Measurement and Control Engineering Harbin Institute of Technology P.O.Box 308 Harbin 150001 China

ISBN: (纸本)0769530737

To resolve the problem of the missile detection in the space early-warning process, an efficient method based on nonlinear adaptive filtering is proposed to detect the small IR target of low SNR under the complex background in this paper. The method can eliminate the influence of the unbalance background to the image segmentation, select the small moving target and the noise points and then eliminate wrong point targets to obtain the satisfactory detection result. The effectiveness of the method is proved by the experimental results for several infrared image sequences. © 2007 IEEE.

关键词： Image segmentation

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A shaped annular beam tri-heterodyne confocal microscope with good anti-environmental interference capability

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Chinese Physics B 2007年第6期16卷 1624-1631页

作者：赵维谦冯政德邱丽荣 School of Information Engineering Beijing Institute of Technology Beijing 10081 China Department of Automation Measurement and Control Engineering Harbin Institute of Technology Harbin 150001 China

annular beam tri-heterodyne confocal microscope has been proposed to improve the anti-environmental interference capability and the resolution of a eonfoeal microscope. It simultaneously detects far-, on-, and near-focus signals with given phase differences by dividing the measured light path of the eonfoeal microscope into three sub-paths （signals）. Pair-wise real-time heterodyne subtraction of the three signals is used to improve the anti-environmental interference capability, axial resolution, and linearity; and a shaped annular beam super-resolution technique is used to improve lateral resolution. Theoretical analyses and preliminary experiments indicate that an axial resolution of about 1 nm can be achieved with a shaped annular beam tri-heterodyne confoeal microscope and its lateral resolution can be better than 0.2 um for A = 632.8 nm, the numerical aperture of the lens of the microscope is NA = 0.85, and the normalized radius e = 0.5.

关键词： confocal microscopy super-resolution surface measurements

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Image Restoration Phase-Filtering Lateral Superresolution Confocal Microscopy

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Chinese Physics Letters 2006年第4期23卷 856-859页

作者：赵维谦邱丽荣陈珊珊冯政德 Department of Automation Measurement and Control Engineering Harbin Institute of Technology Harbin 150001

Image restoration phase-filtering lateral superresolution confocal microscopy, a new approach, is proposed to achieve lateral superresolution using a confoeal microscope. This approach uses a lateral superresolution pupil filter to preliminarily improve its lateral resolution and uses a siagle-image superresolution restoration technique based on a maximum likelihood estimate to further improve its lateral resolution. The new approach has the advantages of a low cost and the remarkable superresolution effect without excessive system complexity. Experiments indicate that the proposed approach can improve the lateral resolution of a confocal microscope from 0.3μm to less than 0.1 μm when λ = 632.8 nm and NA=0.85.

关键词： FLUORESCENCE MICROSCOPE PUPIL FILTERS RESOLUTION SYSTEM

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An efficient method of small targets detection in low SNR

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Journal of Physics: Conference Series 2006年第1期48卷 427-430页

作者： Wang, Y.L. Dai, J.M. Sun, X.G. Wang, Q. Department of Automation Measurement and Control Engineering Harbin Institute of Technology Harbin 150001 PO Box 308 China

In this paper, an efficient method based on nonlinear adaptive filtering is proposed to detect the small IR target of low SNR under the complex background. The morphologic filter can be constructed firstly based on the IR radiation traits of low SNR small targets in the complex background and then a morphological method is used to eliminate the influence of the unbalance background to the image segmentation. Next an algorithm of adaptive threshold segmentation is adopted in order to select the small moving target and the noise points. Finally, on the basis of image sequences, the satisfactory targets detection is accomplished after eliminating wrong point targets. The method presented in this paper can effectively suppress the noise and the air background of the original image, enhance the ability of point target detection in single frame. © 2006 IOP Publishing Ltd.

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Study of Vehicle Autonomous Navigation and Guidance with Self-study Type GPS receiver

Study of Vehicle Autonomous Navigation and Guidance with Sel...

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International Conference on ITS Telecommunications (ITST)

作者： K.b. Xu X.g. Qi X.j. Ju Z.m. Guo W. Wang Department of Automation Measurement and Control Shandong University of Science and Technology Qingdao China College of Infornation and Electrical Engineering Shandong University of Science and Technology Qingdao China

Autonomous navigation of vehicle running with GPS receiver is an important study aspect of future vehicle navigation field. This paper introduces a self-study type navigation method. In this method, real-time receiving for position information of vehicle running track is carried out by embedded GPS receiver, and linearized processing with unitary regression algorithm for discrete position information received by GPS receiver is carried out by microprocessor, then linear correlation of track information is judged by linear correlation coefficient and track information is divided into sections based on degree of linear correlation. Position information of running track is obtained by self-study and the formed autonomous navigation track information is of high navigation accuracy and predictability of front direction. This method needs no professional GIS technology to support and is of excellent flexibility

关键词： Navigation Remotely operated vehicles Mobile robots Global Positioning System Geographic Information Systems Roads Marine technology Databases Instruments automation

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High precision location algorithm for optical feature of vision measurement

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Journal of Physics: Conference Series 2006年第1期48卷 474-478页

作者： Liu, C.Y. Che, R.S. Gao, Y.H. College of Instrumentation and Electrical Engineering Jilin University Changchun 130001 China Department of Automation Measurement and Control Harbin Institute of Technology Harbin 150001 China

To meet the requirement for precision location of optical feature in the vision coordinates measurement system based on optical features imaging, the Gauss distribution multi-fitting location algorithm based on bilinear interpolation was presented in the paper. The method fit the grey distribution of optical feature imaging by Gauss distribution function, and the mathematics model was constructed on grey value of pixel points in the object image, coordinates location and centre of optical feature using the grey value height relativity among the pixels points in the feature image and the location of feature was estimated precisely. In the same, the bilinear interpolation algorithm and multi-fitting method were used to improve the location precision of the location algorithm presented. Finally, the experiment results show that the standard deviation is 0.0055 pixels and the repeatability is less than 0.011 pixels and prove the method holds good location precision and can locate for optical feature precisely. © 2006 IOP Publishing Ltd.

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Development of intelligent setting system for fracture based on x-ray image

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Journal of Physics: Conference Series 2006年第1期48卷 1137-1141页

作者： Zheng, W. Zhang, Y. Liu, J. Yu, G. Hebei University College of Electronic and Information Engineering Baoding 071002 China Harbin University of Science and Technology Measurement Control Technology and Communications Engineering College Harbin 150040 China Harbin Institute of Technology School of Electrical Engineering and Automation Harbin 150001 China Harbin Fifth Hospital Department of Orthopedics Harbin 150040 China

In order to achieve micro-wound, intelligence and high efficiency for fracture setting, intelligent setting system for fracture is proposed in accordance with biomechanics and fracture therapy theory. In the comprehensive medical system based on C-shape-arm X-machine, image processing and analysis is the core, programmable logical controller and stepping motor are important driving parts controlling mechanical parts. Six degree of freedom dynamics sensor ensures to control accurately force and moment. On the foundation of analyzing X-ray image peculiarities, method of processing and analysis is put forward, combining time domain with frequency domain. After mining domain knowledge in depth, setting actions is quantized into three non-continuous steps and is parameterized into two angles and one distance aiming at femoral-neck fracture. Objective features are extracted by virtue of three power polymerization curved surface fitting. Master-slave reference frame is advanced to solve a question that basic standard for parameters calculation is difficult to be determined. At the same time, four-groupsixteen-frame algorithm is put forward to solve a problem that the load value is unable to be calculated and applied precisely in the process of treatment of delayed union and non-union of fracture. Clinic experience proved that the system can help orthopedist to correctly and reliably complete fracture setting. And the system has many advantages such as micro-wound, low medical cost and low infection ratio, in comparison with traditional operation setting and manipulator setting. © 2006 IOP Publishing Ltd.

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An online fuzzy gain scheduling for blood pressure regulation

An online fuzzy gain scheduling for blood pressure regulatio...

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作者： Nguyen, Chi-Ngon Simanski, Olaf Schubert, Agnes Kähler, Ralf Lampe, Bernhard Department of Electrical Engineering Institute of Automation University of Rostock Germany Department of Mechanical Engineering Sect. Measurement and Control University of Rostock Germany

ISBN: (纸本)008045108X

This paper presents a method of fuzzy gain scheduling for a PID controller applied to mean arterial pressure (MAP) regulation during general anesthesia by sodium nitroprusside (SNP) infusion. A supervising algorithm is used for online updating the fuzzy gain scheduler of the PID controller to act stronger against the body reaction. A new model based on Slate's model and Furutani's ideas was developed for testing the controller. Simulation and clinical results in deep hypotensive controls at 40mmHg on pigs indicate the safety and stability of designed controller. Copyright © 2005 IFAC.

关键词： Fuzzy control

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Contour extraction of a moving vehicle in visible images based on image fusion

Contour extraction of a moving vehicle in visible images bas...

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International Conference on Machine Learning and Cybernetics, ICMLC 2005

作者： Zhao, Peng Wang, Ni-Hong Pu, Zhao-Bang Information and Computer Engineering Institute North East Forestry University Harbin City 150040 China Department of Automation Measurement and Control Harbin Institute of Technology Harbin City 150001 China

ISBN: (纸本)078039092X

Infrared (IR) and visible images are commonly used in the detection and tracking of a moving target. A novel contour extraction scheme for a moving vehicle is proposed in this paper. Firstly, a motion segmentation technology is applied to get an initial contour. Secondly, a dynamic contour is applied to represent the initial contour and then converges to the target's contour. Lastly, a novel image fusion is proposed, which minimizes the B-spline norm's square of control point vector's difference in two modal images. Image registration is not required. The experiment indicates that for visible images, average contour extraction error decreases by 58.14% after the fusion. Moreover, a fast iteration algorithm of dynamic contour based on the Newmark algorithm is devised. This image fusion is implemented only with control point vectors and is suitable for real-time processing. © 2005 IEEE.

关键词： Feature extraction

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AN ONLINE FUZZY GAIN SCHEDULING FOR BLOOD PRESSURE REGULATION

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IFAC Proceedings Volumes 2005年第1期38卷 13-18页

作者： Chi-Ngon Nguyen Olaf Simanski Agnes Schubert Ralf Kähler Bernhard Lampe Department of Electrical Engineering Institute of Automation Department of Mechanical Engineering Sect. Measurement and Control University of Rostock Germany Tel/Fax: +49 381 498 3556/3563

关键词： Fuzzy control fuzzy logic PID control scheduling algorithms medical systems medical applications blood pressure

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