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2nd International Symposium on information Technologies and Applications in Education, ISITAE 2008

作者： Li, Wei Yang, Desheng Lu, Ying Zhang, Yichao Institute of Computer Science and Technology Anhui University Hefei China Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Anhui University Hefei China

ISBN: (纸本)9780863419133

An equivalence verification algorithm of sequential circuits [1] based on state transfer graph (STG) is presented in this paper, which obtains some certain useful information through verifying the corresponding state transfer graphs' isomorphism, namely that two corresponding sequential circuits' equivalence . And the verifying includes two steps: firstly, find out all state pairs of the vertexes, which are being verified;secondly verify the equivalence of state pairs, if all the state pairs can be matched as equal state pairs, thus we can come to a conclusion that the corresponding circuits have the same sequential behavior. The algorithm mainly verifies ISCAS85 circuits and some simple state transfer graphs, and the final experiment data shows that the algorithm introduced in the paper will obtain better results compared to BDD(Binary Decision Diagram) and SET(Symbolic Trajectory Evaluation) methods. © 2008 IET.

关键词： Timing circuits

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Research and development of signal acquisition unit model

Research and development of signal acquisition unit model

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2nd International Symposium on information Technologies and Applications in Education, ISITAE 2008

作者： Tao, Baozhuang Zhang, Yichao Lu, Ying Li, Wei Department of Computer Huainan Union University China Institute of Computer Science and Technology Anhui University China Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education Anhui University China

ISBN: (纸本)9780863419133

With core device 8051 Micro-controller and expanding IO-port through Intel 8255A to gather multi-channel signal ,and the final results of data processing are sent out through serial ports. The paper, based on the characteristic of bit operation of 51-serie single-chip and by means of analysis method of mathematical statistics, develops a low-cost, simplestructure, reliable- function and highly efficientalgorithm signal acquisition unit model ,which supplies parallel or serial communication interface and Can be further developed. © 2008 IET.

关键词： Statistics

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Symmetrical Invariant LBP Texture Descriptor and Application for Image Retrieval

Symmetrical Invariant LBP Texture Descriptor and Application...

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Congress on Image and signal processing, CISP

作者： Zhiping Shi Fei Ye Qing He Zhongzhi Shi Key Laboratory of Intelligent Information Processing Institute of Computing Technology CAS Beijing China

In this paper, we present a symmetrical invariant LBP (SILBP) texture descriptor based on the texture pattern equivalent, which is defined according to visual perception of textures. Then we extend the SILBP to linear SILBP. Our experiments on image retrieval show that the proposed texture discriptor has the advantages of symmetrical invariant, rotation robustness and computing simplicity.

关键词： Image retrieval Histograms Visual perception Robustness Humans Image texture Content based retrieval Wavelet transforms signal processing information retrieval

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Three-dimensional ISAR imaging based on antenna array

Three-dimensional ISAR imaging based on antenna array

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作者： Ma, Changzheng Yeo, Tat Soon Zhang, Qun Tan, Hwee Siang Wang, Jun IEEE School of Electric and Information Engineering Zhongyuan University of Technology Zhengzhou 450007 China Department of Electrical and Computer Engineering National University of Singapore Singapore 117576 Singapore Institute of Telecommunication Engineering Air Force Engineering University Xi'an 710071 China National Key Laboratory of Radar Signal Processing Xidian University Shaanxi 710071 China

In this paper, a 3-D inverse synthetic aperture radar (ISAR) imaging method based on an antenna array configuration is proposed. The performance of conventional interferometric ISAR imaging system using three antennas is poor, as the positions of scatterers, which have the same range-Doppler value and projected onto the ISAR plane as a synthesis scatterer, cannot be correctly estimated. However, by using two antenna arrays perpendicular to each other, the system's ability to separate these scatterers can be improved. The criterion for the selection of a range unit that contains an isolated scatterer in the 2-D array domain for doing motion compensation is discussed. If there is no range unit which contains only an isolated scatterer, then radial and cross-range motion compensation has to be carried out by motion parameter estimation. Two cross-range motion parameters measurement algorithms, one based on array processing of the range profile and another based on correlation of ISAR images of different antennas, are proposed. The coordinates registration problem for the scatterers of a synthesis scatterer is also discussed. Simulation results have shown the effectiveness of the proposed methods. © 2008 IEEE.

关键词： Synthetic aperture radar

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Fast commercial detection based on audio retrieval

Fast commercial detection based on audio retrieval

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Dan Zhao Xiangdong Wang Yueliang Qian Qun Liu Shouxun Lin Institute of Computing Technology Key Laboratory of Intelligent Information Processing Beijing China Chinese Academy of Sciences Beijing China

Automatic detection of commercials in digital multimedia material is a challenging task with many applications. This paper presents a novel approach to fast commercial detection based on audio retrieval. It is based on the idea of segmenting energy envelope of audio into units, using only audio signal for matching on a commercial database. Fast searching and matching can be performed with high accuracy, by searching and by novel similarity function based on units. Experimental results show that 96.8% recall rate and 98.7% precision rate can be achieved under 0.125 real-time.

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Authenticated tripartite key agreement protocol

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information Technology Journal 2008年第1期7卷 215-219页

作者： Chunbo, Ma. Jun, Ao Jianhua, Li School of Information Security Engineering Shanghai Jiao Tong University Shanghai 200030 China State Key Laboratory for Radar Signal Processing Xidian University Xi'an Shanxi 710071 China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Beijing 100049 China

An authenticated tripartite key agreement mechanism based on Joux's protocol is presented in this paper. The proposed protocol allows the three parties involved in the protocol to agree upon a common session key over an insecure network. The security of the proposed protocol is based on CDH problem and the strong hash function. Its security is improved under the random oracle model. © 2008 Asian Network for Scientific information.

关键词： Authentication

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Lifting-Based Directionlet Transform for Image Coding

Lifting-Based Directionlet Transform for Image Coding

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9th International Conference on signal processing(第九届国际信号处理学术会议)(ICSP'08)

作者： Jing Bai Jiaji Wu Shan Lu Licheng Jiao Key laboratory of Intelligent Perception and Image Understanding of Ministry of Education of China Institute of Intelligent Information ProcessingXidian UniversityXi' an 710071P.R.China

In this paper,a new lifting scheme of directionlet transform(LDT) is presented,the corresponding multidirectional and anisotropic transform has latticebased separable filtering and subsampling along any two directions with rational *** design an adaptive compression algorithm based on LDT,using the quad-tree segmentation resulting optimized *** results show that our proposed compression algorithm for image coding outperforms the standard wavelet-based SPIHT and JPEG2000 both in terms of PSNR and visual quality,especially at the low-rate.

关键词： Image coding Wavelet transforms Anisotropic magnetoresistance Compression algorithms Filtering Energy resolution Algorithm design and analysis Image segmentation Transform coding Quantization

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A Comprehensive Comparison of Routing Metrics for Wireless Mesh Networks

A Comprehensive Comparison of Routing Metrics for Wireless M...

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IEEE International Conference on Networking, Sensing and Control

作者： Hui Liu Wei Huang Xu Zhou X. H. Wang School of Communication and Information Engineering University of Electronic Science and Technology China National Laboratory of Radar Signal Processing Xidian University Xi'an China Institute of Advanced Telecommunications Swansea University Swansea UK

It is well-known that finding paths with minimum hop count leads to poor performance in wireless mesh networks (WMN) because the assumption of the same transmission failure probability in all links may not be true. A routing metric can assist traditional routing protocol in selecting better paths by explicitly taking the interference, delay etc. into account. This paper presents a thorough review and a comparison of 10 kinds of routing metrics designed for diverse QoS requirements in WMN. Meanwhile, this paper classifies these routing metrics into three basic types, ETX-based metrics, mETX, and some other metrics less attractive to WMN routing layer, for better understanding and future applications. To the best of our knowledge, no paper except this one has such a comprehensive review of routing metrics utilized in WMN.

关键词： Wireless mesh networks Routing protocols Interference Costs Disaster management Electronic mail Delay intelligent networks Technology management Telecommunication traffic

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Texture Classification via the Wavelet-Based Contourlet and Clonal Selection

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电子学报(英文版) 2007年第3期16卷 489-494页

作者： WANG Shuang HU Ying HOU Biao JIAO Licheng Institute of Intelligent Information Processing and National Key Laboratory for Radar Signal Processing Xidian University Xi＇an 710071 China

A texture classification method based on the Wavelet-based contourlet transform (WBCT) and Clonal selection algorithm (CSA) was proposed in this paper. First, an iterative filer bank is combined with wavelet and Directional filter bank (DFB), and then its energy measures are calculated as feature vectors which a K nearest neighbor (KNN) classifier is followed to classify. It's shown that the proposed method is superior to the widely used methods based on wavelet and on contourlet. Furthermore, it is emphasized that in order to reduce the high dimension of feature vectors, two methods are introduced in this paper. One is based on rearranging coefficients, and the other is a feature selection algorithm based on CSA. The experimental results show that CSA can efficiently reduce the dimension of features while getting higher accuracy.

关键词： WBCT 结构特征小波变换信息转换

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Measurement of granules

Measurement of granules

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IEEE International Conference on Cognitive Informatics

作者： Liquan Zhao Ling Zhang Province Key Laboratory of Electronic Business Nanjing University of Finance and Economics Nanjing China Artificial Intelligence Institute Anhui University Hefei China Key Laboratory of Intelligent Computing & Signal Processing of Ministry of Education Anhui University Hefei 230039 China

ISBN: (纸本)9781424425389

The measurement of granules is the most foundational problem in granular computing. The paper is intended to study the measurement of granules on a finite or infinite set. For a finite set we discuss the measurement of granules corresponding to an equivalence relation on a finite set and introduce a definition of conditional granularity in order to distinguish those granules with the same granularity. For an infinite set we can define different granularity in different questions, but we give the basic idea of granularity, that is, the granularity of a granule is the sum of the relative information contents of its atomic granules.

关键词： Micro hierarchical tree Macro hierarchical figure Granularity Conditional granularity grain size Equivalence relation infinite set Finite Infinite

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