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Displaying 1-48 out of 48 total
Fault Localization Using Passive End-to-End Measurements and Sequential Testing for Wireless Sensor Networks
Found in: IEEE Transactions on Mobile Computing
By Bing Wang,Wei Wei,Hieu Dinh,Wei Zeng,Krishna R. Pattipati
Issue Date:March 2012
pp. 439-452
Faulty components in a network need to be localized and repaired to sustain the health of the network. In this paper, we propose a novel approach that carefully combines active and passive measurements to localize faults in wireless sensor networks. More s...
 
Neighbor Discovery in Wireless Networks with Multipacket Reception
Found in: IEEE Transactions on Parallel and Distributed Systems
By Alexander Russell,Sudarshan Vasudevan,Bing Wang,Wei Zeng,Xian Chen,Wei Wei
Issue Date:July 2014
pp. 1
Neighbor discovery is one of the first steps in configuring and managing a wireless network. Most existing studies on neighbor discovery assume a single-packet reception model where only a single packet can be received successfully at a receiver. In this p...
 
Conformal Magnifier: A Focus+Context Technique with Local Shape Preservation
Found in: IEEE Transactions on Visualization and Computer Graphics
By Xin Zhao, Wei Zeng,Xianfeng David Gu,Arie E. Kaufman, Wei Xu,Klaus Mueller
Issue Date:November 2012
pp. 1928-1941
We present the conformal magnifier, a novel interactive focus+context visualization technique that magnifies a region of interest (ROI) using conformal mapping. Our framework supports the arbitrary shape design of magnifiers for the user to enlarge the ROI...
 
Shape-Based Adult Image Detection
Found in: Image and Graphics, International Conference on
By Qing-Fang Zheng, Wei Zeng, Gao Wen, Wei-Qiang Wang
Issue Date:December 2004
pp. 150-153
This paper reports an investigation on adult images detection based on the shape features of skin regions. In order to accurately detect skin regions, we propose a skin detection method using multi-Bayes classifiers in the paper. Based on skin color detect...
 
3D face matching and registration based on hyperbolic Ricci flow
Found in: Computer Vision and Pattern Recognition Workshop
By Wei Zeng, Xiaotian Yin, Yun Zeng, Yukun Lai, Xianfeng Gu, Dimitris Samaras
Issue Date:June 2008
pp. 1-8
3D surface matching is fundamental for shape analysis. As a powerful method in geometric analysis, Ricci flow can flexibly design metrics by prescribed target curvature. In this paper we describe a novel approach for matching surfaces with complicated topo...
 
Colon Flattening Using Heat Diffusion Riemannian Metric
Found in: IEEE Transactions on Visualization and Computer Graphics
By Krishna Chaitanya Gurijala,Rui Shi,Wei Zeng,Xianfeng Gu,Arie Kaufman
Issue Date:December 2013
pp. 2848-2857
We propose a new colon flattening algorithm that is efficient, shape-preserving, and robust to topological noise. Unlike previous approaches, which require a mandatory topological denoising to remove fake handles, our algorithm directly flattens the colon ...
 
Optimization of Thermal Power Units Commitment Based on Culture Algorithm
Found in: Electrical and Control Engineering, International Conference on
By Lu Wei, Zeng Ming, Wang Yulong, Tian Kuo
Issue Date:June 2010
pp. 3961-3964
A scheduling model of thermal power units based on cultural algorithms is proposed to minimize the optimization of the objective function. The algorithm uses the good individual information stored in the Knowledge Space to control the iteration of Populati...
 
Visualizing Mobility of Public Transportation System
Found in: IEEE Transactions on Visualization and Computer Graphics
By Wei Zeng,Chi-Wing Fu,Stefan Arisona,Alexander Erath,Huamin Qu
Issue Date:February 2015
pp. 1
Public transportation systems (PTSs) play an important role in modern cities, providing shared/massive transportation services that are essential for the general public. However, due to their increasing complexity, designing effective methods to visualize ...
 
Surface Meshing with Curvature Convergence
Found in: IEEE Transactions on Visualization and Computer Graphics
By Huibin Li,Wei Zeng,Jean Marie Morvan,Liming Chen,Xianfeng David Gu
Issue Date:June 2014
pp. 919-934
Surface meshing plays a fundamental role in graphics and visualization. Many geometric processing tasks involve solving geometric PDEs on meshes. The numerical stability, convergence rates and approximation errors are largely determined by the mesh qualiti...
 
Geometric Registration Based on Distortion Estimation
Found in: 2013 IEEE International Conference on Computer Vision (ICCV)
By Wei Zeng,Mayank Goswami,Feng Luo,Xianfeng Gu
Issue Date:December 2013
pp. 2632-2639
Surface registration plays a fundamental role in many applications in computer vision and aims at finding a one-to-one correspondence between surfaces. Conformal mapping based surface registration methods conformally map 2D/3D surfaces onto 2D canonical do...
 
Excavation Response of Soft Rock High Slope Considering Strain Softening Feature
Found in: 2013 Fifth International Conference on Measuring Technology and Mechatronics Automation (ICMTMA)
By He Zhong-Ming,Wu Wei,Zeng Ling
Issue Date:January 2013
pp. 536-539
In order to reflect the characteristics of geotechnical engineering materials more really, taked a project of highway soft rock slope excavation as the background, and established the corresponding strain softening model, and carryed out the numerical calc...
 
A Levenberg-Marquardt Neural Network Model with Rough Set for Protecting Citrus from Frost Damage
Found in: 2012 Eighth International Conference on Semantics, Knowledge and Grids (SKG)
By Wei Zeng,Zili Zhang,Chao Gao
Issue Date:October 2012
pp. 193-196
The protection of citrus from night frosts is a recurrent and important issue that has been researched for many years. Although some feasible methods can be used to protect against and prevent frost, they should be implemented before the frost actually occ...
 
Single and Multiple View Detection, Tracking and Video Analysis in Crowded Environments
Found in: 2012 9th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS)
By Teng Xu,Peixi Peng,Xiaoyu Fang,Chi Su,Yaowei Wang,Yonghong Tian,Wei Zeng,Tiejun Huang
Issue Date:September 2012
pp. 494-499
In this paper, we present our detection, tracking and event recognition methods and the results for PETS 2012. First, ROIs (Regions of Interest) based on geometric constraints are utilized in single view detection to eliminate the negative influence of clu...
 
Cybernetics Based Model of Forces with Genotypes
Found in: International Conference on Virtual Reality and Visualization
By Zhang Wei,Zeng Liang,Li Sikun,Xiong Yueshan,Xu Wanying
Issue Date:November 2011
pp. 299-302
In this paper, we propose a cybernetics-based model of forces that integrates personality within it, called GSCP, which can well simulate how the psychological factors impact on the behaviors of entities. The modeling is achieved by introducing a genotype ...
 
Exemplar-Based Image Inpainting with Collaborative Filtering
Found in: Image and Graphics, International Conference on
By Xinran Wu,Wei Zeng,Zhenzhou Li
Issue Date:August 2011
pp. 8-11
This paper proposes a novel patch synthesis approach for exemplar-based propagation in image in painting. Currently, plural non-local exemplar patches synthesis is widely adopted to fill missing pixels. It generally provides good results, but sometimes sho...
 
Registration for 3D surfaces with large deformations using quasi-conformal curvature flow
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Wei Zeng,X. D. Gu
Issue Date:June 2011
pp. 2457-2464
A novel method for registering 3D surfaces with large deformations is presented, which is based on quasi-conformal geometry. A general diffeomorphism distorts the conformal structure of the surface, which is represented as the Beltrami coefficient. Inverse...
 
Global Surface Remeshing Using Symmetric Delaunay Triangulation in Uniformization Spaces
Found in: International Symposium on Voronoi Diagrams in Science and Engineering
By Wei Zeng, Rui Shi, Xianfeng David Gu
Issue Date:June 2011
pp. 160-169
Surface remeshing plays a fundamental role in digital geometry processing. In this paper, we present a novel framework for global surface remeshing based on symmetric Delaunay triangulations on the uniformization spaces. Surfaces with arbitrary topologies ...
 
Multiscale SSR Tag Cloud Visualization for Biomarker Discovery
Found in: Complex, Intelligent and Software Intensive Systems, International Conference
By Jhen-Li Huang, Chien-Ming Chen, Tun-Wen Pai, Liang Wei Zeng, Ronshan Cheng
Issue Date:July 2011
pp. 519-523
Tag cloud is an efficient visualization technique to help users rapidly understand the significant components within a tag based dataset. To make practical use of the visualization method, we proposed a cross-comparison mechanism for discovering Simple Seq...
 
Neighbor discovery in wireless networks with multipacket reception
Found in: Proceedings of the Twelfth ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc '11)
By Alexander Russell, Bing Wang, Sudarshan Vasudevan, Wei Wei, Wei Zeng, Xian Chen
Issue Date:May 2011
pp. 1-10
Neighbor discovery is one of the first steps in configuring and managing a wireless network. Most existing studies on neighbor discovery assume a single-packet reception model where only a single packet can be received successfully at a receiver. In this p...
     
Study on International Software Localization Testing
Found in: Software Engineering, World Congress on
By Chunsheng Zhao, Zhiyong He, Wei Zeng
Issue Date:December 2010
pp. 257-260
Localization testing ensures that localized software meets the requirements of local language, market and user’s habits, it is an important part of international software testing. In, this paper, based on localization testing theory and applications, the c...
 
An Agent-Based Finance Market Model with the Continuous Double Auction Mechanism
Found in: Intelligent Systems, WRI Global Congress on
By Hongtao Zhou, Jiang Jiang, Wei Zeng
Issue Date:December 2010
pp. 316-319
This paper uses the agent-based modelling approach to construct an artificial stock market with the continuous double auction mechanism. In this market, several psychological effects described in behavioral finance, such as Anchoring Effect, mental account...
 
Research on Formal Representation and Decision Theoretic Planning of Emergency Plan
Found in: Intelligent Systems, WRI Global Congress on
By Wei Zeng, GuangYong Liu, HongTao Zhou, Rong Chen
Issue Date:December 2010
pp. 161-164
Emergency plan plays an important role in emergency disposal processes. As the basis of emergency decision making, emergency plan can guarantee the rescue actions carried out quickly and effectively and reduce loss of accident as possible. In this paper, l...
 
Supine and Prone Colon Registration Using Quasi-Conformal Mapping
Found in: IEEE Transactions on Visualization and Computer Graphics
By Wei Zeng, Joseph Marino, Krishna Chaitanya Gurijala, Xianfeng Gu, Arie Kaufman
Issue Date:November 2010
pp. 1348-1357
In virtual colonoscopy, CT scans are typically acquired with the patient in both supine (facing up) and prone (facing down) positions. The registration of these two scans is desirable so that the user can clarify situations or confirm polyp findings at a l...
 
Partial Face Biometry Using Shape Decomposition on 2D Conformal Maps of Faces
Found in: Pattern Recognition, International Conference on
By Przemyslaw Szeptycki, Mohsen Ardabilian, Liming Chen, Wei Zeng, David Gu, Dimitris Samaras
Issue Date:August 2010
pp. 1505-1508
In this paper, we introduce a new approach for partial 3D face recognition, which makes use of shape decomposition over the rigid1 part of a face. To explore the descriptiveness of shape dissimilarity over an isometric part of a face, which has lower proba...
 
Foreground Based Borderline Adjusting for Real Time Multi-camera Video Stitching
Found in: Image and Graphics, International Conference on
By Hongming Zhang, Wei Zeng, Xin Chen
Issue Date:September 2009
pp. 355-360
In this paper, we propose a multi-camera video stitching approach, which conducts borderline adjusting based on foreground information. In real time applications of video stitching, one problem is to deal with dynamic scenes, where foreground objects often...
 
Depth Adaptive Video Stitching
Found in: Computer and Information Science, ACIS International Conference on
By Wei Zeng, Hongming Zhang
Issue Date:June 2009
pp. 1100-1105
This paper proposes a novel approach to stitch videos fast and with high quality. In general, scene depth is frequently varying for dynamic video content. For example, moving foreground objects will move closely or far from a camera. The scene depth will b...
 
Point Matching Estimation for Moving Object Tracking Based on Kalman Filter
Found in: Computer and Information Science, ACIS International Conference on
By Wei Zeng, Guibin Zhu, Yao Li
Issue Date:June 2009
pp. 1115-1119
Video-based information collection has become an important research direction, and moving object tracking technique plays a key role nowadays. The classic corner tracking algorithm doesn’t meet the real-time requirement, and loses the object mostly due to ...
 
Research on Situation Dependent Services Using Model-Based Programming
Found in: Intelligent Systems, WRI Global Congress on
By Wei Zeng
Issue Date:May 2009
pp. 284-287
In the paper a mobile services-related concept, situation dependent mobile services (SDS), is focused on. After introducing SDS and related researches, a SDS platform based on situation calculus and high level logic language Golog is proposed, which allows...
 
Steganalysis of Spread Spectrum Hiding Based on DWT and GMM
Found in: Networks Security, Wireless Communications and Trusted Computing, International Conference on
By Cairong Li, Wei Zeng, Haojun Ai, Ruimin Hu
Issue Date:April 2009
pp. 240-243
Audio steganalysis has attracted more attentions recently. DSSS steganalysis is one of the most challenging research fields. In this paper, a novel algorithm to detect DSSS steganography in audio signal is proposed. Firstly, it takes DWT transform of speci...
 
Computing Teichmüller Shape Space
Found in: IEEE Transactions on Visualization and Computer Graphics
By Miao Jin, Wei Zeng, Feng Luo, Xianfeng Gu
Issue Date:May 2009
pp. 504-517
Shape indexing, classification, and retrieval are fundamental problems in computer graphics. This work introduces a novel method for surface indexing and classification based on Teichmuller theory. The Teichmuller space for surfaces with the same topology ...
 
A Novel Steganalysis Algorithm of Phase Coding in Audio Signal
Found in: Advanced Language Processing and Web Information Technology, International Conference on
By Wei Zeng, Haojun Ai, Ruimin Hu
Issue Date:August 2007
pp. 261-264
Audio steganalysis has attracted more attentions recently. Phase steganalysis is one of the most challenging research fields. In this paper, a novel algorithm to detect phase coding steganography in audio signal is proposed. It is based on analysis of the ...
 
Semantic Object Segmentation by a Spatio-Temporal MRF Model
Found in: Pattern Recognition, International Conference on
By Wei Zeng, Wen Gao
Issue Date:August 2004
pp. 775-778
In this paper, a region-based spatio-temporal Markov random field (STMRF) model is proposed to segment moving objects semantically. The STMRF model combines segmentation results of four successive frames and integrates the temporal continuity in the unifor...
 
A Probability-Based Adaptive Algorithm for Call Admission Control in Wireless Network
Found in: Computer Networks and Mobile Computing, International Conference on
By Xue-Ping Wang, Jian-Li Zheng, Wei Zeng, Gen-Du Zhang
Issue Date:October 2003
pp. 197
A probability-based adaptive algorithm for call admission control in wireless network is proposed and validated. The algorithm is somewhat similar to that of RED (Random Early Detection), which is based on probability to control the Guard channels accordin...
 
Color image segmentation using density-based clustering
Found in: Multimedia and Expo, IEEE International Conference on
By Qixiang Ye, Wen Gao, Wei Zeng
Issue Date:July 2003
pp. 401-404
Color image segmentation is an important but still open problem in image processing. In this paper, we propose a method for this problem by integrating the spatial connectivity and color feature of the pixels. Considering that an image can be regarded as a...
 
Shape Analysis of Planar Multiply-Connected Objects Using Conformal Welding
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Lok Ming Lui,Wei Zeng,Shing-Tung Yau,Xianfeng Gu
Issue Date:July 2014
pp. 1-1
Shape analysis is a central problem in the field of computer vision. In 2D shape analysis, classification and recognition of objects from their observed silhouettes are extremely crucial but difficult. It usually involves an efficient representation of 2D ...
 
Colon Flattening Using Heat Diffusion Riemannian Metric
Found in: IEEE Transactions on Visualization and Computer Graphics
By Krishna Chaitanya Gurijala, Rui Shi, Wei Zeng, Xianfeng Gu,Arie Kaufman
Issue Date:December 2013
pp. 2848-2857
We propose a new colon flattening algorithm that is efficient, shape-preserving, and robust to topological noise. Unlike previous approaches, which require a mandatory topological denoising to remove fake handles, our algorithm directly flattens the colon ...
 
Surface Meshing with Curvature Convergence
Found in: IEEE Transactions on Visualization and Computer Graphics
By Huibin Li,Wei Zeng,Jean Marie Morvan,Liming Chen,Xianfeng David Gu
Issue Date:November 2013
pp. 1
Surface meshing plays a fundamental role in graphics and visualization. Many geometric processing tasks involve solving geometric PDEs on meshes. The numerical stability, convergence rates and approximation errors are largely determined by the mesh qualiti...
 
Area Preserving Brain Mapping
Found in: 2013 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Zhengyu Su,Wei Zeng,Rui Shi,Yalin Wang,Jian Sun,Xianfeng Gu
Issue Date:June 2013
pp. 2235-2242
Brain mapping transforms the brain cortical surface to canonical planar domains, which plays a fundamental role in morphological study. Most existing brain mapping methods are based on angle preserving maps, which may introduce large area distortions. This...
 
Hyperbolic Harmonic Mapping for Constrained Brain Surface Registration
Found in: 2013 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Rui Shi,Wei Zeng,Zhengyu Su,Hanna Damasio,Zhonglin Lu,Yalin Wang,Shing-Tung Yau,Xianfeng Gu
Issue Date:June 2013
pp. 2531-2538
Automatic computation of surface correspondence via harmonic map is an active research field in computer vision, computer graphics and computational geometry. It may help document and understand physical and biological phenomena and also has broad applicat...
 
Isomorphic Manifold Inference for hair segmentation
Found in: 2013 10th IEEE International Conference on Automatic Face & Gesture Recognition (FG 2013)
By Dan Wang,Shiguang Shan,Hongming Zhang,Wei Zeng,Xilin Chen
Issue Date:April 2013
pp. 1-6
Hair segmentation is challenging due to the diverse appearance, irregular region boundary and the influence of complex background. To deal with this problem, we propose a novel method, named Isomorphic Manifold Inference (IMI). Given a head-shoulder image,...
   
An automatic 3D expression recognition framework based on sparse representation of conformal images
Found in: 2013 10th IEEE International Conference on Automatic Face & Gesture Recognition (FG 2013)
By Wei Zeng,Huibin Li,Liming Chen,Jean-Marie Morvan,Xianfeng David Gu
Issue Date:April 2013
pp. 1-8
We propose a general and fully automatic framework for 3D facial expression recognition by modeling sparse representation of conformal images. According to Riemann Geometry theory, a 3D facial surface S embedded in ℝ 3 , which is a topological disk, can be...
   
Heterogeneous data fusion via matrix factorization for augmenting item, group and friend recommendations
Found in: Proceedings of the 28th Annual ACM Symposium on Applied Computing (SAC '13)
By Li Chen, Wei Zeng
Issue Date:March 2013
pp. 237-244
Up to now, more and more social media sites have started to allow their users to build the social relationships. Take the Last.fm for example (which is a popular music-sharing site), users can not only add each other as friends, but also join interest grou...
     
C∞ smooth freeform surfaces over hyperbolic domains
Found in: 2009 SIAM/ACM Joint Conference on Geometric and Physical Modeling (SPM '09)
By Hong Qin, Jiazhi Xia, Wei Zeng, Xianfeng Gu, Ying He
Issue Date:October 2009
pp. 367-372
Constructing smooth freeform surfaces of arbitrary topology with higher order continuity is one of the most fundamental problems in shape and solid modeling. This paper articulates a novel method to construct C∞ smooth surfaces with negative Euler nu...
     
Generalized Koebe's method for conformal mapping multiply connected domains
Found in: 2009 SIAM/ACM Joint Conference on Geometric and Physical Modeling (SPM '09)
By Feng Luo, Min Zhang, Wei Zeng, Xianfeng Gu, Xiaotian Yin
Issue Date:October 2009
pp. 89-100
Surface parameterization refers to the process of mapping the surface to canonical planar domains, which plays crucial roles in texture mapping and shape analysis purposes. Most existing techniques focus on simply connected surfaces. It is a challenging pr...
     
Probabilistic inference of lossy links using end-to-end data in sensor networks
Found in: Proceedings of the 2007 ACM CoNEXT conference (CoNEXT '07)
By Bing Wang, Krishna R. Pattipati, Wei Zeng
Issue Date:December 2007
pp. 89-97
Lossy links used in a sensor network affect network performance, and hence need to be detected and repaired [1, 2]. One approach to detect lossy links is that each node monitors the loss rates on its neighboring links and reports them to the sink. This app...
     
MDS: a multimodal-based dialog system
Found in: Proceedings of the eighth ACM international conference on Multimedia (MULTIMEDIA '00)
By Chunli Wang, Feng Wu, Hongming Zhang, Jiang Wu, Jie Yan, Jiyong Ma, Shiguan Shan, Wei Zeng, Wen Gao, Xilin Chen
Issue Date:October 2000
pp. 410-412
This paper describes MDS: a Multimodal-based Dialog System that supports communication between the hearing impaired and hearing-abled. The system converts sign language to speech, and combines speech with gesture and lip motion using a human face. The feat...
     
Modeling and Consistency Checking Based on Category for Web Navigation Behavior
Found in: Computer Modeling and Simulation, International Conference on
By Xin-lin Zhang, Huai-kou Miao, Hong-wei Zeng
Issue Date:February 2009
pp. 104-109
Using formal method is an effective methodology for modeling and verifying software system. Category theory provides a kind of common language, tool, thinking method and study means for other mathematics subjects, in which a sketch as a formal structure is...
 
DAT: A Data Adaptive Transmission Mechanism for Clustering-Based Wireless Sensor Networks
Found in: MultiMedia and Information Technology, International Conference on
By Yan Shen, Zi-wei Zeng
Issue Date:December 2008
pp. 590-593
Wireless sensor networks (WSNs) are expected to play an essential role for our society in the near future. In this paper, we propose a Data Adaptive Transmission mechanism, DAT in short, for clustering-based wireless sensor networks. Sensor nodes do not al...
 
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