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Displaying 1-21 out of 21 total
Registration of 3D Point Clouds and Meshes: A Survey from Rigid to Nonrigid
Found in: IEEE Transactions on Visualization and Computer Graphics
By G. K. L. Tam, Zhi-Quan Cheng, Yu-Kun Lai,F. C. Langbein, Yonghuai Liu,D. Marshall,R. R. Martin, Xian-Fang Sun,P. L. Rosin
Issue Date:July 2013
pp. 1199-1217
Three-dimensional surface registration transforms multiple three-dimensional data sets into the same coordinate system so as to align overlapping components of these sets. Recent surveys have covered different aspects of either rigid or nonrigid registrati...
 
An Evaluation Method for Multiview Surface Reconstruction Algorithms
Found in: 2012 Second International Conference on 3D Imaging, Modeling, Processing, Visualization and Transmission (3DIMPVT)
By Ran Song,Yonghuai Liu,Yitian Zhao,Ralph Martin,Paul Rosin
Issue Date:October 2012
pp. 387-394
We propose a new method, 3DGiC, for evaluating the performances of various multiview surface reconstruction methods. It does not need a complete ground truth model, providing a much wider range of applications. More importantly, most existing methods only ...
 
Saliency-guided integration of multiple scans
Found in: 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
By Ran Song, Yonghuai Liu,R. R. Martin,P. L. Rosin
Issue Date:June 2012
pp. 1474-1481
We present a novel method to integrate multiple 3D scans captured from different viewpoints. Saliency information is used to guide the integration process. The multi-scale saliency of a point is specifically designed to reflect its sensitivity to registrat...
 
Higher Order CRF for Surface Reconstruction from Multi-view Data Sets
Found in: 3D Imaging, Modeling, Processing, Visualization and Transmission, International Conference on
By Ran Song,Yonghuai Liu,Ralph R. Martin,Paul L. Rosin
Issue Date:May 2011
pp. 156-163
We propose a novel method based on higher order Conditional Random Field (CRF) for reconstructing surface models from multi-view data sets. This method is automatic and robust to inevitable scanning noise and registration errors involved in the stages of d...
 
Penalizing Closest Point Sharing for Automatic Free Form Shape Registration
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Yonghuai Liu
Issue Date:May 2011
pp. 1058-1064
For accurate registration of overlapping free form shapes, different points in one shape must select different points in another as their most sensible correspondents. To reach this ideal state, in this paper we develop a novel algorithm to penalize those ...
 
Data Integration for the Gulf of Mexico Satellite Observations
Found in: Internet and Web Applications and Services, International Conference on
By Longzhuang Li, Yonghuai Liu, Srujan Kothapally, Chuihui Jin, Anil Nalluri
Issue Date:May 2009
pp. 137-142
A number of satellite image sources on meteorology and environment are available over the Gulf of Mexico (GOM). Those satellite images are taken periodically in order to observe the weather changes. However, users usually face several problems when they wa...
 
Automatic Range Image Registration in the Markov Chain
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Yonghuai Liu
Issue Date:January 2010
pp. 12-29
In this paper, a novel entropy that can describe both long and short-tailed probability distributions of constituents of a thermodynamic system out of its thermodynamic limit is first derived from the Lyapunov function for a Markov chain. We then maximize ...
 
A Clustering Approach to Free Form Surface Reconstruction from Multi-view Range Images
Found in: Robotics and Biomimetics, IEEE International Conference on
By Hong Zhou, Yonghuai Liu
Issue Date:December 2006
pp. 941-946
3D modelling finds a wide range of applications in robot vision and reverse engineering. However due to the presence of surface scanning noise, accumulative registration error, and improper data fusion, the reconstructed surfaces from multiple registered r...
 
Flag Guided Integration of Multiple Registered Range Images
Found in: Pattern Recognition, International Conference on
By Hong Zhou, Yonghuai Liu
Issue Date:August 2006
pp. 17-20
Integration of multiple registered range images finds applications in numerous areas. While most existing integration algorithms detect corresponding points between neighbouring views based on interpoint distances, we define in this paper corresponding are...
 
Discontinuity-Based Simplification of Free Form Surface From a Range Image
Found in: Pattern Recognition, International Conference on
By Guoqiang Fei, Yonghuai Liu, Baogang Wei, Longzhuang Li
Issue Date:August 2006
pp. 13-16
This paper improves an existing method for more accurate simplification of free form surface represented as dense points. The main improvement lies in two aspects: one is the introduction of a novel transformation of curvatures, the other is to propose sam...
 
Transforming Least Squares to Weighted Least Squares for Accurate Range Image Registration
Found in: 3D Data Processing Visualization and Transmission, International Symposium on
By Yonghuai Liu, Hong Zhou, Xuan Su, Mingxin Ni, Robert J. Lloyd
Issue Date:June 2006
pp. 232-239
The traditional ICP algorithm is a de facto standard approach for range image registration. While it assumes that one data set is a subset of another, this assumption is often violated in practice. As a result, a number of algorithms have been developed to...
 
Evaluating Collinearity Constraint for Automatic Range Image Registration
Found in: 3D Digital Imaging and Modeling, International Conference on
By Yonghuai Liu, Longzhuang Li, Baogang Wei
Issue Date:June 2005
pp. 172-179
While most of the existing range image registration algorithms either have to extract and match structural (geometric or optical) features or have to estimate the motion parameters of interest from outliers corrupted point correspondence data for the elimi...
 
Free Form Shape Matching Using Deterministic Annealing and Softassign
Found in: Pattern Recognition, International Conference on
By Yonghuai Liu, Longzhuang Li, Ying Wang
Issue Date:August 2004
pp. 128-131
Free form shape matching is a fundamental problem in both the machine vision and pattern recognition literatures. However, the automatic approach to free form shape matching still remains open. In this paper, we improve an existing deterministic annealing ...
 
Evaluating Structural Constraints for Accurate Range Image Registration
Found in: 3D Digital Imaging and Modeling, International Conference on
By Yonghuai Liu, Baogang Wei
Issue Date:October 2003
pp. 187
New technological developments in optics and electronics are rendering laser scanning systems cheaper and more accurate. Such systems can directly capture depth information from objects simplifying range image analysis and enlarging their applications scop...
 
Using Hybrid Knowledge Engineering and Image Processing in Color Virtual Restoration of Ancient Murals
Found in: IEEE Transactions on Knowledge and Data Engineering
By Baogang Wei, Yonghuai Liu, Yunhe Pan
Issue Date:September 2003
pp. 1338-1343
<p><b>Abstract</b>—This paper proposes a novel scheme to virtually restore the colors of ancient murals. Our approach integrates artificial intelligence techniques with digital image processing methods. The knowledge related to the mural ...
 
Using Geometric Properties of Correspondence Vectors for the Registration of Free-Form Shapes
Found in: Pattern Recognition, International Conference on
By Yonghuai Liu, Marcos A. Rodrigues, David Cooper
Issue Date:September 2000
pp. 5011
The registration of free-form shapes by the iterative closest point algorithm (ICP) has attracted much attention from the computer vision and image-processing community since it was first proposed in 1992. Many methods, mainly based on incorporating invari...
 
Correspondenceless Motion Estimation from Range Images
Found in: Computer Vision, IEEE International Conference on
By Yonghuai Liu, Marcos A. Rodrigues
Issue Date:September 1999
pp. 654
Estimation of rigid body motion parameters in computer vision is normally performed from image correspondences between two coordinate frames. A large number of methods and algorithms have been proposed based on that such correspondences are known. Unfortun...
 
Geometrical Analysis of Two Sets of 3D Correspondence Data Patterns
Found in: Shape Modeling and Applications, International Conference on
By Marcos A Rodrigues, Yonghuai Liu
Issue Date:March 1999
pp. 211
Given two sets of image correspondence data, the analysis of the corresponding rigid body transformation that accurately describes the object's motion in 3D space is a fundamental problem in image understanding. While many methods have been put forward to ...
 
A New Robust Geometrical Algorithm For Motion Estimation From Range Images
Found in: Information, Intelligence, and Systems, International Conference on
By Yonghuai Liu, Marcos A. Rodrigues
Issue Date:April 1999
pp. 172
In this paper, we present a geometric analysis of reflected correspondence vectors synthesized into a single coordinate frame. The analysis provides an extension to Chasles' work for machine vision tasks by providing an explicit representation of motion pa...
 
Inverse Validation for Accurate Range Image Registration with Structured Data
Found in: Pattern Recognition, International Conference on
By Yonghuai Liu, Fred Labrosse
Issue Date:August 2002
pp. 30537
Automatic range image registration is a fundamental yet extremely difficult problem in machine vision. In this paper, we extend a promising registration algorithm (GICP) [6] for structured image data. The extended algorithm is based on a relaxation method ...
 
Mesh saliency via spectral processing
Found in: ACM Transactions on Graphics (TOG)
By Paul L. Rosin, Ralph R. Martin, Ran Song, Yonghuai Liu
Issue Date:January 2014
pp. 1-17
We propose a novel method for detecting mesh saliency, a perceptually-based measure of the importance of a local region on a 3D surface mesh. Our method incorporates global considerations by making use of spectral attributes of the mesh, unlike most existi...
     
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