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Simulation on Nanoimprint of Grating Structures

Simulation on Nanoimprint of Grating Structures

The 2010 International Conference on computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

作者： Hongwen Sun Guogao Liu Shanming Lin College of Computer and Information Engineering Hohai University Changzhou China Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology

ISBN: (纸本)9781424472352

Nanoimprint lithography (NIL) is an important nanolithography process with low cost, high throughput and high resolution. It creates patterns by mechanical deformation of imprint resist. Fabricating gratings by NIL can manufacture lots of replica in a fast way. Simulation on the NIL process has a vital role on choosing optimized parameters. One finite element analysis software DEFORM was used to analyze different imprint factors. Through simulation optimization, it was found that imprint temperature, pressure and time strongly affected the replication fidelity. The simulation result will guide the NIL experiment.

关键词： simulation optimization nanoimprint grating micro/nanostructures replication

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Video Object Tracking Method Based on Normalized Cross-correlation Matching

Video Object Tracking Method Based on Normalized Cross-corre...

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International Symposium on Distributed Computing and Applications to Business, Engineering and Science (DCABES)

作者： Jian Wu Heng-jun Yue Yan-yan Cao Zhi-ming Cui Provincial Key Laboratory of Computer Information Processing Technology Soochow University Suzhou China Soochow University Suzhou Jiangsu CN

Combing with specific temporal information of video, this paper proposes a kind of video object tracking method based on normalized cross-correlation matching by using the high precision characteristics of normalized cross-correlation image matching. Firstly, extract video background from the temporal information of video. Then, acquire the region of moving object using background subtraction. Lastly, carry out related matching and updating towards the extracted moving object by means of normalized cross-correlation. Experimental result shows that the adaptability of our method is strong, which can well solve the tracking problems when tracking objects have scale transform. It also has good anti-interference ability and robustness, and can track moving objects accurately under the condition of noise interference, lens dithering and background mutation.

关键词： Target tracking Noise Correlation Pixel Vehicles Cameras

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Fast copy detection based on Slice Entropy Scattergraph

Fast copy detection based on Slice Entropy Scattergraph

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Peng Cui Zhipeng Wu Shuqiang Jiang Qingming Huang Key Laboratory of Intelligence Information Process Institute of Computer Technology Chinese Academy and Sciences Beijing China Chinese Academy and Sciences Beijing China

With the exponential growth of digital video resources, huge amount of videos are uploaded onto the Internet. Therefore, the Content Based Copy Detection (CBCD) issue becomes a hot research topic and has been extensively studied recently. However, most of the approaches lack the power to efficiently handle large data corpus while maintaining a good detection quality. In this paper, we propose a fast CBCD approach based on the Slice Entropy Scattergraph (SES). SES employs video spatio-temporal slices which can greatly decrease the storage and computational complexity. It is based on entropy and its deviation so as to preserve as much as the video information. Besides, SES takes advantage of a scattergraph which is succinct and efficient to plot the distribution of video content. To effectively describe SES, we introduce three descriptors: Projection Histograms, Shape Contexts and Polynomial Coefficients. The experiments on CIVR'07 Copy Detection Corpus and Video Transformation Corpus show the performance improvement of our approach both on efficiency and effectiveness.

关键词： Entropy Histograms Shape Polynomials Lips Charge coupled devices Context

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Network-based reliable H_∞ filter designing for the systems with sensor failures

Network-based reliable H<sub>∞</sub> filter designing for t...

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2010 International Conference on Modelling, Identification and Control, ICMIC 2010

作者： Lilong, Du Zhou, Gu Jinliang, Liu Beijing Key Laboratory of Industrial Process Measurement and Control New Technology and System North China Electric Power University Beijing China School of Power Engineering Nanjing Normal University Nanjing Jiangsu China College of Information Science and Technology Donghua University Shanghai China

This paper is concerned with the reliable filtering problem for network-based linear continuous-time system with sensor failures, The purpose of the addressed filtering problem is to design a filter such that the error dynamics of the filtering process is stable. By using the linear matrix inequality (LMI) method, sufficient conditions are established that ensure the filter parameters are characterized by the solution to a set of LMIs. Simulation results are provided to illustrate effectiveness of the proposed method.

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Multiview Image Registration using Augmented Kalman Filter

Multiview Image Registration using Augmented Kalman Filter

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The 8th World Congress on Intelligent Control and Automation(第八届智能控制与自动化世界大会 WCICA 2010)

作者： Zezhong Xu Yanbin Zhuang Department of Computer Information and Engineering Changzhou Institute of Technology Changzhou Jian Changzhou Key Laboratory of Software Technology and Application Changzhou Jiangsu Province China

Multiview image registration is widely used in computer vision applications. In this paper, an approach for multiview 3D image registration based on augmented Kalman filter is proposed by taking account of various uncertainties. The position and orientation of viewpoint are considered as system state. System augmentation model and system observation model are constructed. The position and orientation of each viewpoint is augmented and updated recursively. The global transformation parameters of image are computed with the state estimation of corresponding viewpoint. The proposed multiview image registration method can handle the uncertainty efficiently and the registration result is accurate and globally consistent. Some experimental results are provided to validate the performance of the proposed method.

关键词： Image registration Three dimensional displays Kalman filters Computational modeling Uncertainty State estimation Covariance matrix

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Multi-description of local interest point for partial-duplicate image retrieval

Multi-description of local interest point for partial-duplic...

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IEEE International Conference on Image processing

作者： Liang Li Shuqiang Jiang Qingming Huang Chinese Academy of Sciences Beijing China Key Laboratory of Intelligence Information Process. Institute of Computer Technology Chinese Academy and Sciences Beijing China

In partial-duplicate image retrieval, images are commonly represented using Bag-of-visual-Words (BoW) built from image local features, such as SIFT. Therefore, the discriminative power of the local features is closely related with the BoW image representation and its performance in different applications. In this paper, we first propose a rotation-invariant Local Self-Similarity Descriptor (LSSD), which captures the internal geometric layouts in the local textural self-similar regions around interest points. Then we combine LSSD with SIFT to develop a multi-description of images for retrieving partial-duplicate. Finally, we formulate the Semi-Relative Entropy as the distance metric. Retrieval performance of this multi-description evaluated in the Oxford building dataset and an image corpus crawled from Google shows that the average precision achieves 11.1% and 2.8% improvement, respectively, comparing with state-of-the-art bundling feature.

关键词： Image retrieval Visualization Entropy Feature extraction Robustness Image color analysis Measurement

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A novel ant colony genetic hybrid algorithm

Journal of Software

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Journal of Software 2010年第11期5卷 1179-1186页

作者： Gao, Shang Zhang, Zaiyue Cao, Cungen School of Computer Science and Technology Jiangsu University of Science and Technology Zhenjiang 212003 China Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

By use of the properties of ant colony algorithm and genetic algorithm, a novel ant colony genetic hybrid algorithm, whose framework of hybrid algorithm is genetic algorithm, is proposed to solve the traveling salesman problems. The selection operator is an artificial version of natural selection, and chromosomes with better length of tour have higher probabilities of being selected in the next generation. Based on the properties of pheromone in ant colony algorithm the ant colony crossover operation is given. Four mutation strategies are put forward using the characteristic of traveling salesman problems. The hybrid algorithm with 2-opt local search can effectively find better minimum beyond premature convergence. Ants choose several tours based on trail, and these tours will replace the worse solution. Compare with the simulated annealing algorithm, the standard genetic algorithm and the standard ant colony algorithm, all the 4 hybrid algorithms are proved effective. Especially the hybrid algorithm with strategy D is a simple and effective better algorithm than others. © 2010 ACADEMY PUBLISHER.

关键词： Genetic algorithms

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Fuzzy dynamic characteristic modeling and intelligent adaptive control for complex spacecraft

Fuzzy dynamic characteristic modeling and intelligent adapti...

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World Congress on Intelligent Control and Automation (WCICA)

作者： Xiong Luo Song Hu Zengqi Sun Xintao Qiu School of Information Engineering Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) University of Science and Technology Beijing Beijing China State Key Laboratory of Intelligent Technology and System Department of Computer Science and Technology Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing China

Because of strong coupling, nonlinear, and time-varying characteristics, it is difficult to control complex spacecraft. By means of combining with controlled object dynamics and performance requirements, characteristic modeling and control approach is an effective way to solve this problem. Aimed at the flexible satellites described by using characteristic modeling approach, with the help of fuzzy rules, fuzzy dynamic characteristic modeling method and intelligent adaptive controller are designed to control this complex spacecraft. Meanwhile, based on the satellite system simulation platform, we validate the correctness and efficiency of the proposed modeling and control method by comparing with the simulation results of the other similar methods.

关键词： Adaptation model Laboratories Satellites Space vehicles Intelligent control Artificial intelligence information science

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Dynamic modeling and tracking control of fuel filled space robotic system with flexible manipulators

Dynamic modeling and tracking control of fuel filled space r...

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International Symposium on Systems and Control in Aerospace and Astronautics (ISSCAA)

作者： Xinxin Yang Xiong Luo Fuchun Sun Fengge Wu Huaping Liu School of Information Engineering Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) University of Science and Technology Beijing Beijing China State Key Laboratory of Intelligent Technology and System Department of Computer Science and TechnologyTsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing China

In recent years, dynamics model and control of space robot system are the hot topics in the research field. In this paper, a new dynamics model and control strategy of space robotic system with a flexible manipulator and a liquid fuel tank are investigated. Based on Lagrange equation method, the dynamics model of the space robotic system coupling with liquid sloshing, flexibility vibration and base movement is derived. The elastic deflection of the flexible manipulator is described by the assumed mode method and equivalent mechanical model is adopted instead of liquid sloshing under the environment of low-gravity. The inverse dynamics control algorithm combined with PD control method is performed to solve the trajectory tracking problem. Some simulation results are given to verify the effectiveness of the proposed method.

关键词： Mathematical model Aerospace electronics Manipulator dynamics Equations Space vehicles

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A Hierarchical Image Annotation Method Based on SVM and Semi-supervised EM

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自动化学报 2010年第7期36卷 960-967页

作者： GAO Yan-Yu YIN Yi-Xin UOZUMI Takashi School of Information Engineering University of Science and Technology Beijing Beijing 100083 P.R.China Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education) University of Science and Technology Beijing Beijing 100083 P. R. China Department of Computer Science and Systems Engineering Muroran Institute of Technology Muroran 050- 8585 Japan

Automatic image annotation, which aims at automatically identifying and then assigning semantic keywords to the meaningful objects in a digital image, is not a very difficult task for human but has been regarded as a difficult and challenging problem to machines. In this paper, we present a hierarchical annotation scheme considering that generally human s visual identification to a scenery object is a rough-to-fine hierarchical process. First, the input image is segmented into multiple regions and each segmented region is roughly labeled with a general keyword using the multi-classification support vector machine. Since the results of rough annotation affect fine annotation directly, we construct the statistical contextual relationship to revise the improper labels and improve the accuracy of rough annotation. To obtain reasonable fine annotation for those roughly classified regions, we propose an active semi-supervised expectation-maximization algorithm, which can not only find the representative pattern of each fine class but also classify the roughly labeled regions into corresponded fine classes. Finally, the contextual relationship is applied again to revise the improper fine labels. To illustrate the effectiveness of the presented approaches, a prototype image annotation system is developed, the preliminary results of which showed that the hierarchical annotation scheme is effective.

关键词：数字图像自动化系统准确性意义图像标注

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