A5102806473- 3D Shape Modeling and Analysis
- Advanced Numerical Analysis Techniques
- Advanced Vision and Imaging
- Computer Graphics and Visualization Techniques
- 3D Surveying and Cultural Heritage
- Computational Geometry and Mesh Generation
- Video Surveillance and Tracking Methods
- Remote Sensing and LiDAR Applications
- Image Processing and 3D Reconstruction
- Augmented Reality Applications
- Silicon Carbide Semiconductor Technologies
- Virtual Reality Applications and Impacts
- Face recognition and analysis
- Lightning and Electromagnetic Phenomena
- Vehicle License Plate Recognition
- Gait Recognition and Analysis
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Text and Document Classification Technologies
- Medical Image Segmentation Techniques
- Human Mobility and Location-Based Analysis
- Advanced Neural Network Applications
- Image and Video Stabilization
- Traffic Prediction and Management Techniques
- Image Retrieval and Classification Techniques
- Occupational Health and Safety Research
Beijing Technology and Business University
2015-2024
National Engineering Research Center for Information Technology in Agriculture
2022-2024
Nanyang Technological University
2004-2017
National University of Singapore
2007
Hong Kong Polytechnic University
2006
The metaverse has gained popularity recently in many areas including social media, healthcare, education and manufacturing. This work explores the use of concept for cultural heritage applications. motivation is to develop a systematic approach construction offer, potentially, more effective solutions tourism guidance, site maintenance, object conservation, etc. We propose framework this with an emphasis on fundamental elements characterization mapping between physical virtual worlds....
This paper presents a variational algorithm for feature-preserved mesh denoising. At the heart of is novel model composed three components: fidelity, regularization and fairness, which are specifically designed to have their intuitive roles. In particular, fidelity formulated as an L1 data term, makes process be less dependent on exact value outliers noise. The total absolute edge-lengthed supplementary angle dihedral angle, making capable reconstructing meshes with sharp features. addition,...
Person re-identification is the task of identifying pedestrians across different cameras. Domain adaptation person involves transferring knowledge from labeled source domains to unlabeled target domains, with applications in security and surveillance. Challenges emerge due variations sample quality disparities distance distribution between positive negative pairs. To address these challenges, this paper proposes a guided metric learning approach for domain re-identification. We focus on...
This study aimed to survey the geriatric nursing competencies of clinical staff in Chongqing City, China, and provide suggestions enhance these competencies. was conducted 204 hospitals Southwest China from December 24, 2022 January 7, 2023. The "Geriatric Nursing Competence Clinical Nurse Investigation Tool" used explore factors that influence nurses' via stratified sampling. by distributing collecting questionnaires through online platform Wenjuanxing. A total 10,692 nurses answered...
The assessment of tissue perfusion by dynamic contrast-enhanced (DCE) imaging involves a deconvolution process. For analysis DCE data, we implemented regression approach to select appropriate regularization parameters for using the standard and generalized singular value decomposition methods. Monte Carlo simulation experiments were carried out study performance compare with other existing methods used data. present is found be robust reliable at levels noise commonly encountered in imaging,...
ABSTRACT Surface‐structured mesh generation is an important part of the Computational Fluid Dynamics (CFD) preprocessing stage. The traditional method cannot automatically divide 3D surface topology in complex structures. Thus, we propose a surface‐structured quadrilateral based on topology‐consistent‐preserved patch segmentation. core idea to segment model into several simple parts according quality and map each 2D parametric domain conformal parameterization method. Then, utilize...
The number of non-rigid 3D shapes increases steadily in various areas. It is imperative to develop efficient retrieval system for shapes. wave kernel signature was introduced as an intrinsic local shape descriptor based on the function, which represents average probability a quantum mechanical particle at specific location. In this paper, we scale-invariant normalizing with eigenvalues Laplace-Beltrami operator. proposed useful coping have undergone scale transformation. Experimental results...
Abstract In this article, we describe a project on the use of Virtual Reality Continuum (VRC) for applications in culture and heritage. Haw Par Villa, local heritage site Singapore, is selected to demonstrate entire process VRC-enhanced digitization from laser scanning 3D mapping prototyping, using Madam Snake White as an example. The objective research investigate effective integrated solution developing VRC Efforts are made fidelity modeling existing multiple applications, with aim...
In this paper, we described a project on the use of Virtual Reality Continuum (VRC) technology for cultural heritage application. Haw Par Villa, local in Singapore, was selected to demonstrate entire process VRC enhanced digitization from laser scanning 3D mapping prototyping. particular, presented with an example Sumo illustrate how help heritage.
We present a variational method for subdivision surface reconstruction from noisy dense mesh. A new set of rules with continuous sharpness control is introduced into Loop better modeling features such as semi-sharp creases, and corners. The key idea to assign value each edge the mesh continuously features. Based on rules, model L1 norm formulated find corresponding values that best fits input An iterative solver based augmented Lagrangian particle swarm optimization used solve resulting...
The placement of knot vector and the determination control points are two fundamental issues in B-spline surface reconstruction. This paper presents a variational approach to construct surfaces from set data points. finds optimal knots simultaneously while most previous methods determine heuristically or separate step. Moreover, different using least squares metric, our adapts L_1-norm with total variation (TV) as regularization fitting procedure, which enables handle both Gaussian noise...
The SPICE simulation program is widely used as a brute force simulator for analyzing and designing switching power converters. Results from are mostly useful, but their integrity sometimes questionable erroneous results could be obtained which may not reflect the true behavior of circuits being simulated. Various parameters in crucial controlling convergence accuracy simulated results, e.g., relative error tolerance maximum integration step size. In this paper, we study system consisting...
Quadrilateral surface mesh generation is a difficult problem which has great influence on the accuracy of numerical simulation in domain computational fluid dynamics (CFD). It time-consuming, and engineers need rich experience traditional methods. In order to improve degree automation algorithm speed up iterative cycle CFD model development, we present new quadrilateral method based area-preserving parameterization. The planar can be generated by template keep geometric features because our...