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International Conference on Computer, Mechatronics, control and Electronic engineering

作者： Wang, Zhi-Qian Liu, Zhao-Rong Xie, Mu-Jun Department of Optics-Electronics Measure and Control Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun China Graduate University Chinese Academy of Sciences Beijing China School of Electrical and Electronic Engineering Changchun University of Technology Changchun China

ISBN: (纸本)9781424479566

In order to follow the development of image interpretation and data-processing system in photoelectric measurement equipments, a kind of hardware acceleration system is designed where MIMD distributed multi-processor architecture is used with SOPC technology. System hardware is composed of FPGA, SDRAM, SRAM, FLASH, and PCI bridge chip. Four Nios II embedded processors are integrated in a single FPGA chip, and communicate with each other by sharing memory. Experimental results indicate that the system meets the requirements of data-processing system in photoelectric measurement equipments and possesses practical significance for engineering applications. © 2010 IEEE.

关键词： Static random access storage

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Beijing traffic data center based on SOA technology

Beijing traffic data center based on SOA technology

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2010 International Conference on Computer Application and System Modeling, ICCASM 2010

作者： Changyu, Zhou Duan, Jianyong Xin, Zheng North China Electric Power University Computer and Control Engineering Academy Beijing China North China University of Technology Information Engineering Academy Beijing China Beijing Traffic Management Bureau Information and Communication Division Beijing Traffic Management Bureau Beijing China

ISBN: (纸本)9781424472369

Focusing on the current situation of Traffic Information Management, this paper analyzes system requirement of establishing intelligent traffic management data center, describes its implementation strategy in details, provides design methodology based on service-oriented architecture (SOA for short) and, moreover, further argues on its SOA framework. Therefore, the paper offers a specific design plan and its implementation for the intelligent traffic management data center. © 2010 IEEE.

关键词： Service oriented architecture (SOA)

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Environment modeling of AS-R robot based on BP neural network

Environment modeling of AS-R robot based on BP neural networ...

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International Conference on Computer, Mechatronics, control and Electronic engineering (CMCE)

作者： Mu-jun Xie Xue-lin Yu Zhi-qian Wang School of Electrical & Electronic Engineering Changchun University of Technology China School of Electrical & Electronic Engineering Changchun University of Technology Changchun China Department of optics-electronics measure and control Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences China

There are some limitations when environment model of AS-R mobile robot is obtained by only using a separate CCD camera or ultrasonic sensor array. The BP neural network is designed to fuse information of the two sensors to obtain the robot's environment model in this paper. The input of BP neural network is the intercept and slope of the edge line obtained CCD camera and ultrasonic sensor arrays, which is processed by through the global coordinates of coordinate transformation. The output of BP network is the fused intercept and slope of the straight edge. Experiment shows that environment model is feasible for the AS-R mobile robot and the environment modeling method has more reliability and accuracy.

关键词： Charge coupled devices Robots Acoustics Robot kinematics Robot vision systems Neurons Cameras

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Design of image interpretation and data-processing system based on SOPC

Design of image interpretation and data-processing system ba...

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International Conference on Computer, Mechatronics, control and Electronic engineering (CMCE)

作者： Zhi-Qian Wang Zhao-Rong Liu Mu-Jun Xie Department of optics-electronics measure and control Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences China Graduate University Chinese Academy of Sciences Beijing China School of Electrical & Electronic Engineering Changchun University of Technology Changchun China

关键词： Field programmable gate arrays Artificial neural networks Semiconductor device measurement Hardware

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Beijing Traffic Data Center based on SOA technology

Beijing Traffic Data Center based on SOA technology

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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： Zhou changyu Duan jianyong Xin zheng North China Electric Power University Computer&Control Engineering academy North China Electric Powe North China University of Technology Information Engineering academy North China University of Techn Beijing traffic management bureau Information and communication division Beijing traffic management

ISBN: (纸本)9781424472352

关键词： SOA data center

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Block-based adaptive image watermarking scheme using just noticeable difference

Block-based adaptive image watermarking scheme using just no...

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2009 IEEE International Workshop on Imaging Systems and Techniques, IST 2009

作者： Yixin, Yan Wei, Cao Shengming, Li College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin 150040 China

ISBN: (纸本)9781424434831

Digital watermarking has been proposed as a solution to the problem of copyright protection of multimedia files in networked environments. In this paper, a block-based adaptive image watermarking scheme using Just Noticeable Difference (JND) is proposed. The proposed scheme is performed in both pixel domain and Discrete Cosine Transform (DCT) domain. It first divides host image into 88 blocks. After that, it calculates the capacity of each block to embed information without being perceptible. This capacity can be determined by JND threshold, which is one feature of Human Visual System (HVS) model and it measures the smallest difference between watermarked and host image that is just detectable for human vision. The DCT coefficients of each block are adaptively modified according to the JND threshold values. Watermarks will be embedded in the modified DCT coefficients. Performance and experimental results of proposed scheme are presented. As expected, high robustness of watermarked images without image quality distortion can be achieved. © 2009 IEEE.

关键词： Discrete cosine transforms

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Image restoration method based on least-squares and regularization and fourth-order partial differential equations

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Information technology Journal 2010年第5期9卷 962-967页

作者： Yu, Xiaoyang Gao, Yuan Yang, Xue Shi, Chu Yang, Xiukun Higher Educational Key Laboratory for Measuring and Control Technology and Instrumentation College of Measurement Control Technology and Communication Engineering Harbin University of Science and Technology No. 4 Lin Yuan Road Xiang Fang District Harbin City Heilongjiang Province 150040 China Shandong Academy of Sciences Institute of Oceanographic Instrumentation Corporate Research Center Jersey City NJ 07302 United States MOTOROLA Countries of Southern California to Identify R and D Center IDENTIX. Inc. Corporate Research Center Jersey City NJ 07302 United States

An image restoration method based on least-squares and regularization and fourth-order partial differential equations is proposed in this study. Noise is removed by improved Yu-Li and M. Kaveh's fourth-order partial differential equations method and then improved least-squares and regularization method is adopted to restored image. The experimental results show that the method can better restore degraded image and the peak signal to noise ratio and subjective visual effects of the restored image are improved significantly. © 2010 Asian Network for Scientific Information.

关键词： Image reconstruction

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Unsupervised Color-Texture Image Segmentation Based on A New Clustering Method

Unsupervised Color-Texture Image Segmentation Based on A New...

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International Conference on New Trends in Information and Service Science, NISS

作者： Yixin Yan Yongbin Shen Shengming Li College of Measure-Control Technology & Communication Engineering Harbin University of Science and Technology Harbin China

Image segmentation is a classical problem in the area of image processing, motion estimation, and soon. Although there exist a lot of clustering based approaches to perform image segmentation, few of them study how to obtain more accurate image segmentation results by designing a suitable clustering method. In this paper, we select an appropriate distance measure in the composite feature space of color and texture. Then the distance measure is incorporated in a clustering method that utilizes the spatial information of each feature vector. Finally, the proposed scheme performs morphology filtering to obtain the final segmented regions. Experimental results show that proposed scheme can constantly achieve higher segmentation accuracy compared to some state-of-art image segmentation algorithms.

关键词： Image segmentation Clustering methods Clustering algorithms Algorithm design and analysis Pixel Extraterrestrial measurements Image processing Morphology Filtering Image analysis

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Robust Image Watermarking Based on singular value decomposition in DT-CWT domain

Robust Image Watermarking Based on singular value decomposit...

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IEEE International Workshop on Imaging Systems and Techniques (IST)

作者： Wei Cao Yixin Yan Shengming Li College of Measure-Control Technology & Communication Engineering Harbin University of Science and Technology Harbin China

This paper introduces a novel approach of watermarking for copyright protection applications using the singular value decomposition (SVD) in the dual tree complex wavelet transform (DT-CWT) domain. After applying the 2-level DT-CWT to the cover grayscale image, we apply the SVD to each high-pass subband obtained. The singular values in each subband are then modified by the singular values of the DT-CWT-transformed visual watermark. Modification in all subbands allows the development of a watermarking scheme that is robust to a wide range of attacks. Experimental results demonstrate that the proposed watermarking scheme is highly robust to various attacks.

关键词： Robustness Watermarking Singular value decomposition Discrete wavelet transforms Wavelet domain Discrete Fourier transforms Wavelet transforms Fourier transforms Discrete cosine transforms Protection

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A Novel Method for Video Retrieval Using Relevant Feedback

A Novel Method for Video Retrieval Using Relevant Feedback

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International Conference on New Trends in Information and Service Science, NISS

作者： Yongbin Shen Yixin Yan Shengming Li College of Measure-Control Technology & Communication Engineering Harbin University of Science and Technology Harbin China

In this paper, we propose a relevant feedback algorithm based on supervised classification and unsupervised feature extraction using independent component analysis (ICA). First, we calculate the approximate coefficients of video frames in a single shot by two-level Haar wavelet decomposition; second,ICA is utilized to obtain the independent components of the wavelet coefficients, which are used to represent video frames. Simulation results demonstrated the validity of the algorithm.

关键词： Feedback Information retrieval Video on demand Independent component analysis Data mining Feature extraction Content based retrieval Image retrieval Humans Videoconference

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