期刊：
PROCEEDINGS OF THE 2010 INTERNATIONAL CONFERENCE ON WAVELET ANALYSIS AND PATTERN RECOGNITION,2010年:170-175
通讯作者：
Ning, Liangshuo
作者机构：
[Ning, Liangshuo] Hubei Univ, Fac Math & Comp Sci, Wuhan, Peoples R China.;[Ning, Liangshuo; Zhou, Long; You, Xinge] Wuhan Polytech Univ, Elect & Informat Engn Dept, Wuhan, Peoples R China.;[He, Zhengyu; You, Xinge; Du, Liang] Huazhong Univ Sci & Technol, Elect & Informat Engn Dept, Wuhan, Peoples R China.;[He, Zhengyu] Harbin Inst Technol, Shenzhen Grad Sch, Dept Comp Sci & Technol, Shenzhen, Peoples R China.
通讯机构：
[Ning, Liangshuo] H;Hubei Univ, Fac Math & Comp Sci, Wuhan, Peoples R China.
会议名称：
2010 International Conference on Wavelet Analysis and Pattern Recognition
会议时间：
JUL 11-14, 2010
会议地点：
Qingdao, PEOPLES R CHINA
会议主办单位：
[Ning, Liangshuo] Hubei Univ, Fac Math & Comp Sci, Wuhan, Peoples R China.^[Ning, Liangshuo;Zhou, Long;You, Xinge] Wuhan Polytech Univ, Elect & Informat Engn Dept, Wuhan, Peoples R China.^[You, Xinge;Du, Liang;He, Zhengyu] Huazhong Univ Sci & Technol, Elect & Informat Engn Dept, Wuhan, Peoples R China.^[He, Zhengyu] Harbin Inst Technol, Shenzhen Grad Sch, Dept Comp Sci & Technol, Shenzhen, Peoples R China.
会议论文集名称：
International Conference on Wavelet Analysis and Pattern Recognition
摘要：
Writer identification recently has been considerably studied due to its various applications in forensic and commercial sections. Because offline, text-independent writer identification has limited requirements in writing sample collection, it has wider applications and meanwhile more difficult to handle. By considering handwriting images as visually distinctive textures, we propose a new method for offline, text-independent writer identification based on multiscale version of Gaussian Markov Random Fields (GMRF) model. The handwriting features are extracted in wavelet domain of handwriting textures in which global texture feature (such as directional information) from handwriting can be detected. In addition, GMRF is investigated to capture different local spatial structures of graphemes (character-shape) written by different people. The experimental results demonstrate that the proposed method outperforms both 2-D Gabor model and wavelet-based GGD method.
作者机构：
[Xinge You] (Correspd. E-mail: [email protected]) Dept. of Elec. and Info. Eng., Wuhan Polytechnic University, Wuhan and Dept. of Electr. and Info. Eng., Huazhong Univ. of Science and Technology, Wuhan, China;[Zhenyu He] Harbin Institute of Technology Shenzhen Graduate School, Harbin, China and Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, China;[Yiuming Cheung] Department of Computer Science, Hong Kong Baptist University, Hong Kong, China;[Jianwei Du] Department of Mathematics and Physics, Beijing Institute of Petrochemical Technology, Beijing, China;[Long Zhou] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China
摘要：
Writer identification is an important and active branch of biometrics, which means the methods for uniquely recognizing humans based upon their intrinsic physical or behavioral traits. In this paper, we propose one new method for off-line, text-independent writer identification by using the fractal dimension of wavelet subbands in Gabor domain of the handwriting images. In this method, the handwriting images are firstly decomposed into a series of Gabor subbands at different orientations and frequencies. Every Gabor subband is extended into one data sequence. Then, every sequence is decomposed into a series of wavelet subpatterns by wavelet transform. Afterwards, the mesh fractal dimensions of every wavelet subpattern are extracted as the feature for writer identification. Compared to the traditional Gabor method for off-line, text-independent writer identification, our method can extract more effective features to distinguish the handwritings, and hence achieve much better identification results. Writer identification is an important and active branch of biometrics, which means the methods for uniquely recognizing humans based upon their intrinsic physical or behavioral traits. In this paper, we propose one new method for off-line, text-independent writer identification by using the fractal dimension of wavelet subbands in Gabor domain of the handwriting images. In this method, the handwriting images are firstly decomposed into a series of Gabor subbands at different orientations and frequencies. Every Gabor subband is extended into one data sequence. Then, every sequence is decomposed into a series of wavelet subpatterns by wavelet transform. Afterwards, the mesh fractal dimensions of every wavelet subpattern are extracted as the feature for writer identification. Compared to the traditional Gabor method for off-line, text-independent writer identification, our method can extract more effective features to distinguish the handwritings, and hence achieve much better identification results.
会议论文集名称：
2010 11th International Conference on Electronic Packaging Technology & High Density Packaging(2010 电子封装技术与高密度封装国际会议)论文集
摘要：
The die of piezoresistance based pressure sensor and its driving circuits has been integrated into one printed circuit board which is specially designed. Then the whole PCB is packaged into a metal shell by SIP technology and special packaging techniques to form a full pressure sensor. Tests have proved that this kind of pressure sensor has good performance. Compared with traditional pressure sensors, these sensors based on SIP have small volume, low cost, and could compatible with the strict standard of vehicle.
作者机构：
[牟怿; 刘纯利] Engineering School, Anhui Science and Technology University, Fengyang 233100, Anhui, China;[周龙] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan 430023, China
通讯机构：
Engineering School, Anhui Science and Technology University, China
作者机构：
[尤新革; 周龙] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan 430023, China;[牟怿] School of Engineering, Anhui Science and Technology University, Fengyang 233100, Anhui, China
通讯机构：
Department of Electrical and Information Engineering, Wuhan Polytechnic University, China
期刊：
OPEE 2010 - 2010 International Conference on Optics, Photonics and Energy Engineering,2010年1:80-83
通讯作者：
Li, J.(lj14163@yahoo.com.cn)
作者机构：
[Jie Li] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China;[Xiqu Chen] Department of Mathematics and Physics, Wuhan Polytechnic University, Wuhan, China
会议名称：
2010 International Conference on Optics,Photonics and Energy Engineering(2010光学、光子学与能源工程国际会议 OPEE 2010)
会议时间：
2010-05-10
会议地点：
武汉
会议论文集名称：
2010 International Conference on Optics,Photonics and Energy Engineering(2010光学、光子学与能源工程国际会议 OPEE 2010)论文集
作者机构：
Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China;Institute of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
通讯机构：
Department of Electrical and Information Engineering, Wuhan Polytechnic University, China
摘要：
Images often contain noise due to the capturing devices, environment and even human errors. For the image further processing, compression, fractal and so on, the image denoising is necessary. Wavelet analysis plays a very important role in the image denoising. In this paper, we improve the wavelet thresholding method by using multi-scale thresholds and a new thresholding function. Also, in case of large noise, a median filter is suggested to be used at last. Based on Lipschitz exponent and wavelet transform, we theoretically give the multi-scale thresholds. In order to obtain a better denoising result, We also present a new thresholding function instead of the hard or soft thresholding function. Experiment results show that our improved method gives a higher PSNR and has less visual artifacts compared with other methods.
期刊：
2010 Symposium on Photonics and Optoelectronics,2010年:1-3
作者机构：
[Jie Li; Xiqu Chen] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China
摘要：
Thermally induced optically-distortion effects are one of the main impediments to be overcome in developing high power solid-state lasers. To compensate the dynamic aberration of laser beam, an intra-cavity adaptive optical system was developed. A beaconing light was introduced to measure the wavefront aberration of intracavity laser beam and an MEMS deformable mirror was used to improve the wavefront aberration and output power of the laser . A genetic algorithm was used to adjust the control voltages of 37 independent electrodes to vary the shape of the deformable mirror surface such that the aberration of laser beam can be compensated .The experimental result showed that the output power was increased nearly 3 times and the beam quality was improved obviously by closed loop automatic control of the adaptive optical system.
作者机构：
Department of Electric Information Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China;College of Science, Wuhan University of Science and Technology, Wuhan, Hubei, China
通讯机构：
Department of Electric Information Engineering, Wuhan Polytechnic University, China
关键词：
Adaptive fuzzy control algorithm;Maximum power point tracking;Photovoltaic array
摘要：
The need for supporting real time multimedia applications for users of Mobile Ad hoc Network (MANET) is becoming essential. The aim of this paper is to construct bandwidth-satisfied multicast tree for QoS routing in TDMA-based mobile ad hoc networks. The paper proposes an efficient path bandwidth calculation algorithm. An effective multicasting routing algorithm is presented to build a multicast tree among all the multicast members. Simulation results show that compared with MAODV, our proposed QoS routing algorithm can significantly improve the performance of QoS multicast routing in MANETs in terms of success ratio and average delay.
期刊：
OPEE 2010 - 2010 International Conference on Optics, Photonics and Energy Engineering,2010年1:88-91
通讯作者：
Li, J.(lj14163@yahoo.com.cn)
作者机构：
[Jie Li] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China;[Xiqu Chen] Department of Mathematics and Physics, Wuhan Polytechnic University, Wuhan, China
会议名称：
2010 International Conference on Optics,Photonics and Energy Engineering(2010光学、光子学与能源工程国际会议 OPEE 2010)
会议时间：
2010-05-10
会议地点：
武汉
会议论文集名称：
2010 International Conference on Optics,Photonics and Energy Engineering(2010光学、光子学与能源工程国际会议 OPEE 2010)论文集
摘要：
A novel micro-deformable mirror with continuous facet is designed and fabricated in this paper. It consists of 49 electrostatically driven actuators, and its effective reflective surface is 900 millimeter square, which is a significant feature over other existed mirrors. Some processes are discussed in detail for mirror fabrication, in which a convex compensation method is designed for the anisotropic etching and a special structure is also used to improve the quality of anodic bonding.
摘要：
The traditional grey prediction model is widely used in various fields, but it has some limitations. In this paper, a method based on genetic algorithm optimizing grey modeling process is introduced, and the flow chart of modeling is given. This method makes full use of the advantages of the grey prediction model and characteristics of genetic algorithm to find global optimization. So the prediction model is more accurate. The Example shows that the model can be used as oil price forecast an effective tool for prediction.
期刊：
2010 International Conference on Machine Learning and Cybernetics,2010年2:784-789
作者机构：
[Long Zhou] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China;Faculty of Mathematics and Computer Science, Hubei University, Wuhan, China;Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, China;[Qin Zhou] Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China<&wdkj&>Faculty of Mathematics and Computer Science, Hubei University, Wuhan, China;[Xinge You] Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, China<&wdkj&>Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China
摘要：
Face recognition has been studied extensively recently. The main difficulty faced by the current face recognition techniques stems from large variations in facial expression, pose and illumination. This paper presents an effective method for face recognition using nonseparable wavelet domain block-based PCA(BPCA) method. Our investigations demonstrate that the constructed nonseparable wavelet can detect more singularities of the face image than traditional separable wavelet. The BPCA approach has overcome the low accuracy of PCA in cases of extreme change of facial expression, pose and illumination variations. The face image is first transformed into the wavelet domain using nonseparable wavelet, then the wavelet subbands are divided into sub-images with the same size. The block-based PCA method is then applied to extract features from the sub-images. Finally, weighted Euclidean distance based k-Nearest Neighborhood (kNN) classifier is performed for similarity measurement. Experimental results on the Yale database, the ORL database, and the CMU PIE Database demonstrate that the proposed approach outperforms traditional methods.
会议论文集名称：
The Third International Symposium on Test Automation & Instrumentation(第三届国际自动化测试与仪器仪表学术会议 2010 ISTAI)论文集
关键词：
PID;Thermoelectric Cooler;Laser Diode;Temperature Control Circuit
摘要：
This paper presented the factors affecting the wavelength of laser diode. A circuit for temperature controlling for laser wavelength stabilization in CPT atomic clock was designed. Experiment test showed that the wavelength could be freely changed and stabilized by the circuit. The wavelength control accuracy is 0.0012nm.
摘要：
In traditional gatekeeper architectures, call routing has many drawbacks such as long call setup delay, heavy burden on gatekeeper, low channel utilization and lack of scalability. We propose a scalable routing architecture for next generation gatekeeper, which is independent of real-time services plane. The design principle is gatekeeper call routing may be separated from its call process. Next generation multimedia networks, which feature with large capability and multi-domains, consist of Connecting Domain for call routing and Service Domain for call process. Next generation gatekeeper is the important entity in Connecting Domain, adopts Telephony Routing over IP to realize dynamic routing. We consider this routing as a special type of service and investigate the method of routing creation and routing provisioning. Validation in a testing platform shows that the proposed routing architecture can provide admirable routing performance. It also goes through stress and capability test. So it is a better choice for multimedia communication system with flexible extension and network cost saving.
期刊：
Proceedings - International Conference on Pattern Recognition,2010年:1489-1492 ISSN：1051-4651
通讯作者：
Peng, Q.
作者机构：
Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, China;Department of Electrical and Information Engineering, Wuhan Polytechnic University, Wuhan, China;Department of Computer Science, Hong Kong Baptist University, Hong Kong, Hong Kong
通讯机构：
Department of Electronics and Information Engineering, Huazhong University of Science and Technology, China
