Research Publications

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International Journal&Conference Papers

• Ligang Liu, Lei Zhang, Yin Xu, Craig Gotsman, Steven J. Gortler. A Local/Global Approach to Mesh Parameterization. Proceedings of Eurographics Symposium on Geometry Processing 2008 (SGP 2008), Copenhagen, July 2-4, 2008. Computer Graphics Forum, 2008, 27(5): 1495-1504.
• Jianwei Hu, Ligang Liu, Guozhao Wang. Dual Laplacian Morphing for Triangular Meshes. Computer Animation and Virtual Worlds, 2007, 18: 271-277. (Proceedings of CASA 2007)
• Zhongping Ji, Ligang Liu, Zhonggui Chen, Guojin Wang. Easy Mesh Cutting. Proceedings of Eurographics, Vienna, Austria, Sep.,  2006. Computer Graphics Forum, 2006, 25(3): 283-291. .
• Lei Zhang, Ligang Liu, Zhongping Ji, Guojin Wang. Manifold Parameterization.  Proceedings of 24th Computer Graphics International Conference, June 2006, Hangzhou China. Lecture Notes in Computer Science, 2006, 4035: 160-171.
• Zhongping Ji, Ligang Liu, and Guojin Wang. A global Laplacian smoothing approach with feature preservation. Proceedings of The 9th International Conference on Computer Aided Design and Computer Graphics, 2005, HongKong, IEEE Computer Society, pp. 269-274, The Best Student Paper Award. (Non-iterative Global Mesh Smoothing with Feature Preservation. International Journal of CAD/CAM, 6(1), 85-93, 2006.)
• Renjiang Zhang, Ligang Liu, Weiyin Ma, and Guojin Wang. Construction of cubic triangular patches with C1 continuity around a corner. Proceedings of The 9th International Conference on Computer Aided Design and Computer Graphics, 2005, HongKong, IEEE Computer Society, pp. 73-78. (Also in International Journal of CAD/CAM, 6(1), 145-152, 2006.)
• Xin Tong, Jingdan Zhang, Ligang Liu, Xi Wang, Baining Guo, and Heung-Yeung Shum. Synthesis of bi-directional texture functions on arbitrary surfaces. Proceedings of SIGGRAPH', IEEE Computer Society, San Antonio, Texas USA, Jul., 2002. ACM Transaction on Graphics, 2002, 21(3): 665-672.

International Journal Papers

• Ligang Liu, Chiew-Lan Tai, Zhongping Ji, Guojin Wang. Non-Iterative Linear Approach for Global Mesh Optimization. Computer-Aided Design, 2007, 39(9), 772-782.
• Oscar Kin-Chung Au, Chiew-Lan Tai, Ligang Liu, and Hongbo Fu. Dual Laplacian editing for meshes. IEEE Transactions on Visualization and Computer Graphics, 2006, 12(3): 386-395.
• Hongwei Lin, Guojin Wang, Ligang Liu, Hujun Bao. Parameterization for fitting triangular mesh, Progress in Natural Science, 2006, 16(11): 1214-1221.
• Ligang Liu, Bo Zhang, Baining Guo, and Heung-Yeung Shum. Polygonal shape blending with topological evolutions. Journal of Computer Science and Technology, 2005, 20(1): 77-89.
• Ligang Liu and Guojin Wang. Explicit representation for NURBS curves and surfaces. Computer Aided Geometric Design, 2002, 19(6): 409-419.
• Hongwei Lin, Ligang Liu, and Guojin Wang. Boundary evaluation for interval Bézier curves. Computer-Aided Design, 2002, 34(9), 637-646.
• Ligang Liu and Guojin Wang. Three-dimensional shape blending: intrinsic solutions to spatial interpolation problems. Computers & Graphics, 1999, 23(4), 535-545.

International Conference Papers

• Min Meng, Ligang Liu. Sketching Image Morphing using Moving Least Squares. The 3rd Korea-China Joint Conference on Geometric and Visual Computing, August, 2007, Seoul, Korea.
• Zhonggui Chen, Ligang Liu, Zhenyue Zhang, Guojin Wang. Surface Parameterization via Aligning Optimal Local Flattening. Proceedings of ACM Symposium on Solid and Physical Modeling (SPM 2007), Beijing, China, pp.291-296, 2007. poster.
• Wenhao Song, Ligang Liu. Stretch-based Tetrahedral Mesh Manipulation. Proceedings of Graphics Interface, Montreal, Canada, 2007.
• Oscar Kin-Chung Au, Chiew-Lan Tai,  Hongbo Fu, and Ligang Liu. Mesh editing with curvature flow Laplacian. Proceedings of Symposium on Geometry Processing, poster, 2005.
• Wenhao Song, Ligang Liu, and Xunnian Yang. Fast and Robust Ridge-Ravine Detection on Triangular Meshes by Smooth Parametric Functions. Proceedings of Pacific Graphics, short paper, poster, 2005.
• Ligang Liu, Guopu Wang, Bo Zhang, Baining Guo and Heung-Yeung Shum, Perceptually based approach for planar morphing, Proceedings of Pacific Graphics'2004, IEEE Computer Society, Seoul, Korea, Oct., 2004, pp. 111-120. 
• Xi Wang, Lifeng Wang, Ligang Liu, Shimin Hu and Baining Guo. Interactive modeling of tree bark. Proceedings of Pacific Graphics'2003, IEEE Computer Society, Alberta, Canada, Oct, 2003, pp. 83-90.  
• Ligang Liu and Guojin Wang. Recursive formulae for Hermite polynomial approximations to rational Bézier curves. Proceedings of Geometric Modeling and Processing 2000: Theory and Applications, IEEE Computer Society, Hong Kong, Apr., 2000, pp.190-197.

Domestic Journal Papers

• Dongmei Zhang and Ligang Liu. Efficient approach for high quality compatible triangulations between polygons. Journal of Zhejiang University (Engineering Science), 2008, 42(5): 780-784. (张冬梅，刘利刚. 多边形高质量同构三角剖分的有效算法. 浙江大学学报(工学版),  2008, 42(5): 780-784.)
• Dongmei Zhang and Ligang Liu. Planar shape blending algorithm with preserving interior similarity. Computer Research and Development, 2007, 44(11): 1932-1938. (张冬梅，刘利刚. 保内部相似性的平面形状混合算法. 计算机研究与发展, 2007, 44(11): 1932-1938.)  (In Chinese)
• Yichuan Ding and Ligang Liu. Optimal vertex matching algorithm for polygonal shapes. Journal of Zhejiang University (Engineering Science), 2007, 41(9): 1532-1536. (丁弋川，刘利刚. 多边形顶点匹配优化算法. 浙江大学学报(工学版),  2007, 41(9): 1532-1536.) (In Chinese)
• Shaozhong Ren, Ligang Liu and Guojin Wang. Detail Preserving Planar Shape Editing. Journal of Computer-Aided Design & Computer Graphics, 2007, 19(1): 42-47. (任绍忠，刘利刚，王国瑾，保细节平面形状编辑，计算机辅助设计与图形学学报，2007, 19(1): 42-47.) (In Chinese)
• Zhongping Ji, Ligang Liu, Guojin Wang. Feature preserving mesh simplification based on corner cutting. Computer Research and Development, 2006, 43(12): 2144-2151. (计忠平，刘利刚，王国瑾.基于割角的保特征网格简化算法.计算机研究与进展,2006, 43(12): 2144-2151.) (In Chinese)
• Zhongping Ji, Ligang Liu, Guojin Wang. Mesh simplification based on local polynomial fitting. Journal of Zhejiang University (Engineering Science), 2006, 40(12): 2083-2087. (计忠平，刘利刚，王国瑾. 基于局部多项式拟合的网格简化算法.浙江大学学报(工学版),  2006, 40(12): 2083-2087.) (In Chinese)  
• Zhongping Ji, Ligang Liu, Guojin Wang. A Novel Axial Deformation Algorithm without Local Self-intersection, Chinese Journal of Computers, 2006, 29(5), 828-834. (计忠平，刘利刚，王国瑾. 无局部自交的轴变形新方法，计算机学报，2006, 29(5): 828-834.) (In Chinese)
• Shaozhong Ren, Ligang Liu, Guojin Wang. Feature Preserving Shape Blending Based on Scaling Invariant Intrinsic Variables. Journal of Image and Graphics of China, Vol. 11 (Supplement), June 2006, 147-154. (任绍忠, 刘利刚, 王国瑾. 保特征形状过渡的伸缩内在量算法. 中国图像图形学报, 2006年6月, 增刊, 147-154.) (In Chinese)
• Weiguo Wang, Ligang Liu, Guojin Wang. Geometric Extension of Nonadjacent Cubic Bezier Curves. Journal of Computer-Aided Design & Computer Graphics, 2006, 18(12): 1911-1917. (王维国，刘利刚，王国瑾. 三次Bezier曲线间的几何延拓算法. 计算机辅助设计与图形学学报，2006, 18(12): 1911-1917.) (In Chinese)
• Hongkun Li, Guojin Wang and Ligang Liu. B-spline Expression of Integral Curvature Line on NURBS Surface. Journal of Computer-Aided Design & Computer Graphics, 2006, 18(3): 390-395. (李宏坤，王国瑾，刘利刚，NURBS曲面上积分曲率线的B样条表示，计算机辅助设计与图形学学报，2006, 18(3): 390-395.) (In Chinese)
• Ligang Liu and Guojin Wang. Optimal approximation to curve offset based on shifting control points. Journal of Software, 2002, 13(3), 398-403. (刘利刚, 王国瑾. 基于控制顶点偏移的等距曲线最优逼近. 软件学报, 2002, 13(3), 398-403.) (In Chinese)
• Huahao Shou, Ligang Liu and Guojin Wang. Offset approximation algorithm based on Liu Hui's circle subdivision method. Applied Mathematics: A Journal of Chinese Universities, 2002, 17(1), 105-112. (寿华好, 刘利刚, 王国瑾. 基于刘徽割圆术的等距线逼近算法. 高校应用数学学报, 2002, 17(1), 105-112.) (In Chinese)
• Ligang Liu and Guojin Wang. Two types of polynomial approximation to rational surfaces. Journal of Software, 2001, 12(5): 650-655.
• Ligang Liu, Guojin Wang and Huahao Shou. Approximation by interval Bezier surfaces. Journal of Computer-Aided Design & Computer Graphics, 2000, 12(9), 645-650. (刘利刚, 王国瑾, 寿华好. 区间Bézier曲面逼近. 计算机辅助设计与图形学学报, 2000, 12(9), 645-650.) (In Chinese)
• Ligang Liu and Guojin Wang. Offset surface approximation algorithm based on the triangulation approximation to sphere, Journal of Engineering Graphics, 2000, 21(3), 70-74. (刘利刚, 王国瑾. 基于球面三角网格逼近的等距曲面逼近算法. 工程图学学报, 2000, 21(3), 70-74.) (In Chinese)
• Guojin Wang, Guodong Chen, Ligang Liu and Huahao Shou. CAGD models of form-position tolerance, Chinese Science Abstracts, 2000, 6(2), 197-200.(王国瑾, 陈国栋, 刘利刚, 寿华好. 形位公差的计算几何模型. 中国学术期刊文摘, 2000, 6(2), 197-200.) (In Chinese)
• Ligang Liu and Guojin Wang. Shape blending between 3D triangular meshes based on their intrinsic variables, Chinese Journal of Computers, 1998, 21(9), 850-854. (刘利刚, 王国瑾. 基于内在变量的空间三角网格的形状混合. 计算机学报, 1998, 21(9), 850-854.) (In Chinese)

Technical Report

• Oscar Kin-Chung Au, Chiew-Lan Tai, Hongbo Fu and Ligang Liu. Mesh Editing with Curvature Flow Laplacian Operator. Technical Report HKUST-CS05-10, Department of Computer Science, The Hong Kong University of Science & Technology, July 2005.

Ph.D. Dissertation

Ligang Liu. Algorithm Research on Geometric Approximation and Geometric Interpolation in Surface Modeling. Ph.D. Dissertation, Zhejiang University, June 2001.(刘利刚. 曲面造型中几何逼近与几何插值的算法研究. 浙江大学博士论文, 2001年6月) (In Chinese)