检索结果-内蒙古大学图书馆

作者： Kang, Hao Li, Rongyu Yang, Xin Xiao, Tian Department of Electronic and Engineering Shanghai Jiaotong University Shanghai 200240 China Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University Shanghai 200240 China Flat Panel Display Technology R and D Center SVA Electron Co. Ltd. 196 Ouyang Rd. Shanghai 200081 China

ISBN: (纸本)9787561752289

In the Electroluminescent display panels, the largest portion of power consumption of data driver circuits comes from charging and discharging quite large capacitive loads, data lines. The proposed multi-steps data driving method can reduce the panel AC power consumption into only a few percent of that of conventional ones if the number of steps is large enough. In the proposed driving method, external capacitors supply charge to loads in multi-steps manner, and the charge returns to the capacitors instead of being discharged to ground. This charge recycling is the basis of reduction of the panel AC power. In this paper, the author gives a hardware implementation of 4-steps voltage generator with a minimum complexity.

关键词： Electric power utilization

来源：评论

学校读者我要写书评

暂无评论

Watermarking Polygonal Lines Using V-Descriptors

Watermarking Polygonal Lines Using V-Descriptors

引用

International Conference on Pervasive Computing and Applications (ICPCA)

作者： Xiaoyun Tie Jiancheng Zou Wenqi Zhong Dongxu Qi Institute of Image Processing and Pattern Recognition North-China University of Technology Beijing China North China University of Technology Beijing Beijing CN Macau University of Science and Technology Macau Macao China

Based on the V-descriptors, a novel watermarking algorithm to protect the copyright of vector images is proposed in this paper. Watermarks are embedded in the image's contours. Experiments show that the algorithm ... 详细信息

关键词： Watermarking Graphics Signal processing algorithms Protection Polynomials Streaming media Robustness Geographic Information Systems image processing pattern recognition

来源：评论

学校读者我要写书评

暂无评论

A Tongue-Print image Database for recognition

A Tongue-Print Image Database for Recognition

引用

International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Zhi Liu Jing-Qi Yan David Zhang Qun-Lin Tang Institute of Image Processing and Pattern Recognition Shanghai Jiao Tong University hanghai China Biometrics Research Centre Hong Kong Polytechnic University Kowloon Hong Kong The Graduate School of Harbin Institute of Technology Shenzhen China

The tongue is a unique organ in that it can be stuck out of mouth for inspection, in this act offering a proof of life, and yet it is otherwise well protected in the mouth and is difficult to forge. The tongue also presents both geometric shape information and physiological texture information which are potentially useful in identity verification applications. Furthermore, the act of physically reaching or thrusting out is a convincing proof for the liveness. Despite these obvious advantages, little work has hitherto been done on tongue features. A primary factor for preventing such research is the lack of an available 3D tongue image database. In this paper, we present a newly developed 3D tongue image database, which includes both tongue geometric shape and surface textures of 134 subjects. This is the first attempt at making a 3D tongue image database available for the research community, with the ultimate goal of fostering the research on tongue biometrics. The new database can be a valuable resource for algorithm assessment, comparison and evaluation.

关键词： image databases image recognition Tongue Mouth Shape Inspection Protection Surface texture Biometrics Spatial databases

来源：评论

学校读者我要写书评

暂无评论

Face recognition Research Based on Anti-Symmetrical Wavelet and Eigenface

Face Recognition Research Based on Anti-Symmetrical Wavelet ...

引用

International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Qian Yin Zhi-Yong Yuan Ying Kong Ping Guo Image Processing and Pattern Recognition Laboratory Beijing Normal University Beijing China School of Computer Science Wuhan University of China Wuhan China School of Computer Science & Technology Beijing Institute of Technology Beijing China

In this paper, a new human face recognition method based on anti-symmetrical biorthogonal wavelet transformation (ASBWT) and eigenface was proposed. First the anti-symmetrical biorthogonal wavelet is chosen to degrade the face image dimension, meanwhile complete the process of face location and segmentation; And then human face is reverted through the face space of eigenface, the traditional average human face is replaced in the within-class scatter matrix. This within-class scatter matrix is used to calculate within-class and between-class distance proportion as a rule function, calculate the twice eigenface through discrete Karhunen-Loeve transform (DKLT), and use singular value decomposition (SVD) method to calculate the eigenvector. Finally we compute the weights and classify the face images. The results show that the proposed method has higher recognition rate and more robust than the traditional eigenface analysis method.

关键词： Face recognition Scattering Matrix decomposition image coding Humans Matrices Degradation Robustness Wavelet analysis Fourier transforms

来源：评论

学校读者我要写书评

暂无评论

Human-in-the-loop control system based on the biped waIking - Chair robot

Human-in-the-loop control system based on the biped waIking ...

引用

26th Chinese Control Conference, CCC 2007

作者： Tang, Jiaoyan Zhao, Qunfei Jie, Huang Yang, Ruqing School of Mechanical Engineering Shanghai Jiaotong University Shanghai 200240 China Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University Shanghai 200240 China College of Computer Science and Engineering University of Aizu Aizu Wakamatsu 965-8580 Japan

ISBN: (纸本)7900719229

This paper presents the research on stability for biped Walking-Chair robot with huamn-in-the-loop. The inherent properties of the biped system with human-in-the-loop for navigation path design and walking gait design are analyzed. Posture stability computation method based on ZMP (Zero Moement Point) theory is discussed. Some suggestions about the future research are also presented.

关键词： Robots

来源：评论

学校读者我要写书评

暂无评论

Editorial: Knowledge engineering, semantics, and signal processing in audio - visual information retrieval

引用

IEEE Transactions on Circuits and Systems for Video Technology 2007年第3期17卷 257-258页

作者： Izquierdo, Ebroul Zhang, Jian Sikora, Thomas Huang, Thomas S. Department of Electrical Engineering Queen Mary University of London London El 4NS United Kingdom Sydney Australia School of Computer Science and Engineering University of New South Wales Australia Communication Systems Group Technical University Berlin Berlin Germany ITG University of Illinois at Urbana-Champaign United States Department of Electrical and Computer Engineering Coordinated Science Laboratory United States Image Formation and Processing Group Beckman Institute for Advanced Science and Technology United States Institute's Major Research Theme Human Computer Intelligent Interaction National Academy of Engineering Chinese Academies of Engineering and Sciences China International Association of Pattern Recognition Optical Society of American United States

No abstract available

关键词： Special issues and sections Knowledge engineering Information retrieval Audio-visual systems

来源：评论

学校读者我要写书评

暂无评论

New intra prediction mode for interlaced video in AVS

引用

Gaojishu Tongxin/Chinese High Technology Letters 2007年第3期17卷 221-225页

作者： Chen, Liang Tan, Yihua Tian, Jinwen State Key Laboratory of Education Ministry for Image Processing and Intelligent Control Institute of Pattern Recognition and Artificial Intelligence Huazhong University of Science and Technology Wuhan 430074 China

The technologies of intra prediction and MBAFF were introduced, and a new intra prediction mode based on the characteristics of spatial distribution in interlaced video was proposed. The spatial correlation of five luma intra prediction modes in AVS-P2 and the new mode were analyzed. From the analysis result, it can be concluded that the new mode can exploit the spatial correlation better and predict the samples more precisely than the existed ones. The experimental results showed that the average gain in peak signal to noise ratio was above 0.12dB and the average reduction in bit-rate was above 1.77%, so the proposed mode is an effective prediction mode for improvement of coding performance.

关键词： AVS Interlaced video Intra prediction Video coding

来源：评论

学校读者我要写书评

暂无评论

Motion Analysis of Endovascular Stent-Grafts by MDL Based Registration

Motion Analysis of Endovascular Stent-Grafts by MDL Based Re...

引用

International Conference on Computer Vision (ICCV)

作者： Georg Langs Nikos Paragios Rene Donner Pascal Desgranges Alain Rahmouni Hicham Kobeiter GALEN Group Laboratoire de Mathématiques Appliquées aux Systàmes Ecole Centrale de Paris France Institute for Computer Graphics and Vision Graz University of Technology Austria Pattern Recognition and Image Processing Group University of Technology Vienna Austria University of Paris XII Paris France

The endovascular repair of a traumatic rupture of the thoracic aorta - that would otherwise lead to the death of the patient - is performed by delivering a stent-graft into the vessel at the rupture location. The age range of the affected patients is large and the stent-graft will stay in the body for the remaining life. The technique is relatively new, and no experience with regard to long-term effects, and durability exists. To predict long-term complications, such as ruptures or destructive interactions with surrounding tissue during the life of the patient, it is important to understand the - rather intense and constant - movement of the stent- graft during the cardiac cycle. A computed tomography with heart gating (gated CT) acquires sequences that show the region of the stent-graft at different time points. We analyze the motion of stent-grafts with a model based approach. Stent-grafts are represented as sparse sets of axis points extracted from the gated CT, and motion patterns are captured by a minimum description length based group-wise registration of the stent-graft at different time points. No parameterization or a priori definition of the topology is necessary, and highly variable elasticity properties in the data volume can by accounted for by the sparse statistical model, that captures correlations and motion components of the stent-graft. We report results for deformation models and registration accuracy for 5 patients.

关键词： Motion analysis Computed tomography Biomedical imaging Heart Buildings Computer graphics pattern recognition image processing Hospitals Data mining

来源：评论

学校读者我要写书评

暂无评论

Supervised non-negative matrix factorization based latent semantic image indexing

引用

Chinese Optics Letters 2006年第5期4卷 272-274页

作者：梁栋杨杰常宇畴 Institute of Image Processing and Pattern Recognition Shanghai Jiaotong UniversityShanghai 200240

A novel latent semantic indexing （LSI） approach for content-based image retrieval is presented in this paper. Firstly, an extension of non-negative matrix factorization （NMF） to supervised initialization is discussed. Then, supervised NMF is used in LSI to find the relationships between low-level features and high-level semantics. The retrieved results are compared with other approaches and a good performance is obtained.

关键词： image processing Indexing (of information) Matrix algebra Semantics

来源：评论

学校读者我要写书评

暂无评论

An Improved Car-Following Model for Multiphase Vehicular Traffic Flow and Numerical Tests

引用

Communications in Theoretical Physics 2006年第2X期46卷 367-373页

作者： LI Zhi-Peng GONG Xiao-Bo LIU Yun-Cai Institute of Image Processing and Pattern Recognition Shanghai Jiaotong University Shanghai 200240 China

This paper attempts to introduce an improved difference model that modifies a car-following model, which takes the next-nearest-neighbor interaction into account. The hnprovement of this model over the previous one lies in that it performs more realistically in the dynamical motion for small delay time. The traffic behavior of the improved model is investigated with analytic and numerical methods with the finding that the new consideration could further stabilize traffic flow. And some simulation tests verify that the proposed model can demonstrate some complex physical features observed recently in real traffic such as the existence of three phases： free flow, coexisting flow, and jam flow; spontaneous formation of density waves; sudden flow drop in flow-density plane; traffic hysteresis in transition between the free and the coexisting flow. Furthermore, th.e improved model also predicts that the stable state to relative density in the coexisting flow is insusceptible to noise.

关键词： car-following models density waves traffic flow

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：