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Test data compression scheme based on compatible data block coding

Information technology Journal 2013年第1期12卷 204-208页

作者： Shang, Jin Zhang, Liyong College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin 150080 China School of Electrical and Information Engineering Heilongjiang Institute of Technology Harbin 150050 China

In order to reduce the storage requirements for the test pattern, a test data compression scheme based on compatible data block coding is presented. In the scheme, binary code is used to express the test data which are compatible or inversely compatible with reference data which are improved compression radio. The circuit structure of decompression with a Finite State Machine (FSM) and a Cyclical Scan Register (CSR) was proposed. Experimental results for the large ISCAS 89 benchmark circuits show that this scheme is a very efficient compression method than other compression schemes and the average compression ratio of up to 63.89%.

关键词： System-on-chip

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Investigation of a software for finite element model updating of bridges based on interface technology between VC++ and MATLAB

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Key engineering Materials 2013年第1期540卷 1-10页

作者： Liu, Yang Lv, Zhan Zhang, Hong School of Transportation Science and Engineering Harbin Institute of Technology Harbin China Key Laboratory of Advanced Material Intelligent Control Technology on Transportation safety Ministry of Communication China

To develop an effective software for finite element (FE) model updating of bridges, the interface technology between VC++ and MATLAB was investigated firstly, and then a software for updating FE model of bridges, named 'Doctor for Bridges' (version 1.0) was developed. Finally, a model ofconcrete-filled steel tube arch bridge was applied to verify the performance and effectiveness of the proposed software. Copyright © 2013 Trans Tech Publications Ltd, Switzerland.

关键词： MATLAB

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A proposed highly-sensitive finger-photoplethysmograph using a sphere-shaped diffuse reflector for non-invasive measurement of blood constituents

Transactions of Japanese Society for Medical and Biological ...

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Transactions of Japanese Society for Medical and Biological engineering 2014年 52卷 O-518-O-519页

作者： Kiyohara, Daiki Nagai, Takashi Lee, Jihyoung Matsumura, Kenta Rolfe, Peter Yamakoshi, Ken-Ichi Tanaka, Naoto Yamakoshi, Yasuhiro Tanaka, Shinobu Nogawa, Masamichi Yamakoshi, Takehiro Graduate School of Natural Science and Technology Kanazawa University Kanazawa Japan School of Mechanical Engineering College of Science and Engineering Kanazawa University Kanazawa Japan Ritsumeikan Global Innovation Research Organization Ritsumeikan University Kusatsu Japan Graduate School of Information Science and Technology Hokkaido University Sapporo Japan Department of Automatic Measurement and Control Harbin Institute of Technology Harbin China Showa University School of Medicine Tokyo Japan Yu.sys Corporation Japan Department of Information Systems Engineering Fukuoka Institute of Technology Fukuoka Japan

We aim for accurate non-invasive optical measurement of blood constituents, especially alcohol (BAL) and glucose (BGL), by means of a newly designed integrating sphere finger photoplethysmographic sensor (isFPPG). The sensitivity of the new device was compared with that of a conventional transmittance-type sensor (tmFPPG). We used near-infrared light at 1160-nm, a window in the water absorption spectrum and strong BAL absorption peak, and 1600-nm, a strong absorption peak of BGL. In 8 volunteers, simultaneous measurements of both isFPPG and tmFPPG from the index fingers with both wavelengths were made using a laser-based experimental setup. The difference of signal-to-noise ratios (SNRs) between isFPPG and tmFPPG were evaluated. We found statistically significant higher SNRs with the isFPPG, by factors of 1.58 and 4.80 for the FPPG measurements at 1160-nm and 1600-nm, respectively. Thus, the proposed method at these wavelengths could be particularly useful to reduce influences of the strong water absorption bands. © 2014, Japan Soc. of Med. Electronics and Biol. engineering. All rights reserved.

关键词： Spheres

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A meta-modeling procedure for updating the finite element model of an arch bridge model

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Key engineering Materials 2013年第1期540卷 79-86页

作者： Wang, Dejun Liu, Yang School of Transportation Science and Engineering Harbin Institute of Technology Harbin China Key Laboratory of Advanced Material Intelligent Control Technology on Transportation safety Ministry of Communication China

Finite element (FE) model updating of structures using vibration test data has received considerable attentions in recent years due to its crucial role in fields ranging from establishing a reality-consistent structural model for dynamic analysis and control, to providing baseline model for damage identification in structural health monitoring. Model updating is to correct the analytical finite element model using test data to produce a refined one that better predict the dynamic behavior of structure. However, for real complex structures, conventional updating methods is difficult to be utilized to update the FE model of structures due to the heavy computational burden for the dynamic analysis. Meta-model is an effective surrogate model for dynamic analysis of large-scale structures. An updating method based on the combination between meta-model and component mode synthesis (CMS) is proposed to improve the efficiency of model updating of large-scale structures. The effectiveness of the proposed method is then validated by updating a scaled suspender arch bridge model using the simulated data. Copyright © 2013 Trans Tech Publications Ltd, Switzerland.

关键词： Arch bridges

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Application of Noise Reduction Method Based on Birgé-Massart Threshold

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仪器仪表学报 2013年第S1期34卷 134-137页

作者： Xu Xiaoli Jiang Zhanglei Zuo Yunbo Wu Guoxin School of Mechanical and Vehicle Engineering Beijing Institute of Technology Key Laboratory of Modern Measurement & Control Technology Ministry of Education Beijing Information Science and Technology University

Flue gas generator set is a kind of large high-speed rotating machinery in petrochemical *** research focuses on noise reduction algorithms basis ontheBirgé-*** the threshold through Penalization Strategy Provided by Birgé-Massart;constructed different modulus maximum vertex neighborhood on different wavelet transform decomposition scales to influence the search process of modulus maximum point;obtained the appropriate modulus maximum points sequence on various wavelet decomposition scales;highlighted state feature information;finally usedMallat staggered projection to reconstruct *** order to validate the effectiveness of the algorithm,it was compared with four kinds of threshold noise suppression methods namely Rigrsure,Sqtwolog,Heursure,*** results show that this algorithm has a better signal to noise ratio and mean-square error.

关键词： feature extraction modulus maximum punishment strategies

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CMOS digitally programmable grounded inductor

CMOS digitally programmable grounded inductor

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International Conference on Signal Processing and Integrated Networks (SPIN)

作者： Devesh Singh Neelofer Afzal Pallavi Choudekar Sachin Kumar Yadav Department of Electronics and Communication AKG Engineering College Ghaziabad Uttar Pradesh India Department of Electrical & Electronics Amity School of Engg. & Technology Noida Uttar Pradesh India Department of Instrumentation and Control Engg. Netaji Subhas Institute of Technology New Delhi India

A CMOS digitally programmable lossless grounded inductor is presented in this paper. It uses two digitally programmable second generation current conveyors (DPCCII) and three grounded passive elements including one capacitor only. The inductance value is tuned by programmable gain factor of current conveyor. As an application, a current mode multifunction filter has been realized using proposed programmable inductor. The simulation results have been demonstrated and discussed using a SPICE simulation.

关键词： Inductors Band-pass filters Inductance CMOS integrated circuits Digital filters Tuning

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Semi-randomized hashing for large scale data retrieval

Semi-randomized hashing for large scale data retrieval

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International Conference on Data Science and Advanced Analytics (DSAA)

作者： Haichuan Yang Xiao Bai Jun Zhou Peng Ren Jian Cheng Lu Bai School of Computer Since and Engineering Beihang University China School of Information and Communication Technology Griffith University Australia College of Information and Control Engineering China University of Petroleum China Institute of Automation Chinese Academy of Sciences China Department of Computer Science University of York UK

In information retrieval, efficient accomplishing the nearest neighbor search on large scale database is a great challenge. Hashing based indexing methods represent each data instance as a binary string to retrieve the approximate nearest neighbors. In this paper, we present a semi-randomized hashing approach to preserve the Euclidean distance by binary codes. Euclidean distance preserving is a classic research problem in hashing. Most hashing methods used purely randomized or optimized learning strategy to achieve this goal. Our method, on the other hand, combines both randomized and optimized strategies. It starts from generating multiple random vectors, and then approximates them by a single projection vector. In the quantization step, it uses the orthogonal transformation to minimize an upper bound of the deviation between real-valued vectors and binary codes. The proposed method overcomes the problem that randomized hash functions are isolated from the data distribution. What's more, our method supports an arbitrary number of hash functions, which is beneficial in building better hashing methods. The experiments show that our approach outperforms the alternative state-of-the-art methods for retrieval on the large scale dataset.

关键词： Vectors Euclidean distance Binary codes Training Equations Principal component analysis

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Introduction to the issue on biophotonics

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IEEE Journal on Selected Topics in Quantum Electronics 2014年第2期20卷 4-7页

作者： Ilev, Ilko K. Boppart, Stephen A. Andersson-Engels, Stefan Kim, Beop-Min Perelman, Lev Tuchin, Valery Center for Devices and Radiological Health U.S. Food and Drug Administration Silver Spring MD 20993 United States Beckman Institute for Advanced Science and Technology Departments of Bioengineering Electrical and Computer Engineering and Medicine University of Illinois Urbana IL 61801 United States Division of Atomic Physics Lund University Lund SE-22100 Sweden Department of Biomedical Engineering Korea University Seoul 136-703 Korea Republic of Center for Advanced Biomedical Imaging and Photonics Beth Israel Deaconess Medical Center Harvard University Boston MA 02215 United States Division of Optics and Biophotonics Saratov State University Saratov 410012 Russia Institute of Precision Mechanics and Control Russian Academy of Sciences Saratov 410028 Russia Optoelectronics and Measurement Techniques Laboratory University of Oulu Oulu FI-90014 Finland

The objective of this JSTQE Issue on Biophotonics is to highlight recent progress and trends in innovative biophotonics technology development. The papers published in this issue cover a broad range of advanced biophotonics areas summarized in the following sections: 1) bioimaging: optical coherence tomography and microscopy, nonlinear optical imaging, and novel multimodality imaging approaches; 2) biosensing: multifunctional biosensing, and novel biosensing approaches; 3) biophotonic science: mechanisms of light-cell and lighttissue interactions, advanced modeling methods in biophotonics, and light induced biophotonics effects; 4) biophotonic technology: advanced technologies in biophotonic diagnostics and therapeutics, infrared technology in biophotonics, and novel laser, biomedical and fiber optics tools and devices in biophotonics. These key research topics are highlighted as comprehensive overviews of the current status and future trends, as well as original results and recent developments in the field of biophotonics. This issue contains 33 papers, including 18 invited and 15 contributed papers authored by well-established research groups and promising scientists from all over the world. The invited papers include extended reviews on recent biophotonic developments and clinical applications in the areas of highresolution multispectral bioimaging, combined multifunctional microscopy, nonlinear deep tissue imaging, single molecule imaging, optical coherence elastography, cellular and molecular mechanisms of photobiomodulation, tissue optical clearing, clinical ultrafast laser surgery, infrared laser nerve stimulation, and novel tapered diode lasers for biophotonics. The contributed papers cover a broad variety of key biophotonic research areas including recently obtained original results on multimodal bioimaging and sensing, high resolution phase-sensitive magnetomotive optical coherence microscopy and elastography, and laser-assisted typing of polymorphic human

关键词： Special issues and sections Biophotonics

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An image segmentation algorithm based on 3-D maximum between-cluster variance

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Journal of Computational Information Systems 2013年第15期9卷 6055-6062页

作者： Qi, Qi He, Wei Zhang, Guoyun Yan, Taishan College of Information and Communication Engineering Hunan Institute of Science and Technology Yueyang 414006 China Key Laboratory of Optimization and Control for Complex Systems College of Hunan Province Yueyang 414006 China

A new method of image segmentation based on 3-D maximum between-cluster variance is proposed. The method uses gray distribution information, neighborhood related information and gradient structure information of pixels to construct 3-D observation space. Based on the complementation, competition and redundancy of all information, this algorithm improves the accuracy of segmentation. By applying the segmentation, predator prey particle swarm optimization (PPPSO) is used to search for the best threshold, which can reduce the searching time, and converge to global optimum rapidly. Theoretical analysis and experiment results show the superior performance of the proposed method in terms of segmentation accuracy, computation efficiency and robustness. © 2013 Binary Information Press.

关键词： Image segmentation

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Active contour based on transformation of grayscale fluctuations for medical image segmentation

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Journal of Computational Information Systems 2013年第9期9卷 3683-3697页

作者： Zhang, Bin Liu, Dan Sun, Jinwei Sun, Xiaogang Department of Automatic Measurement and Control Harbin Institute of Technology Harbin 150001 China Department of Electronic Information Engineering Harbin University of Science and Technology Harbin 150080 China Harbin Chiyeung Auto Co. Ltd Harbin 150001 China

Currently, medical images cannot be segmented well due to the inhomogeneous intensity distribution. This problem exists in X-ray (digital radiographs/tomography), MRI and ultrasound. In order to address this problem, this paper proposed a novel active contour model based on grayscale fluctuations. In this model, grayscale fluctuations are introduced to obtain the grayscale curve in the horizontal direction, and then they are used to get the normalization of grayscale image by the monotone interval judgment. Based on these results, our new active contour model is proposed by redefining the energy function. This paper also introduced related experiments, which are performed on synthetic images and real medical images, with the purpose to verify the proposed model. The experiment results show that the model is able to achieve high accurate segmentation of the image with inhomogeneous intensity distribution. © 2013 by Binary Information Press.

关键词： Image segmentation

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