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| 1 | Error estimate for Doo-Sabin surfaces显示文摘Based on a general bound on the distance error between a uniform Doo-Sabin surface and its control polyhedron, an exponential error bound independent of the subdivision process is presented in this paper. Using the exponential bound, one can predict the depth of recursive subdivision of the Doo-Sabin surface within any user-specified error tolerance. | WANG Huawei , GUAN Youjiang and QIN Kaihuai(1. Department of Computer Science and Technology 2. Department of Precision Instrument and Mechanics, Tsinghua University, Beijing 100084, China) | 2002 | Progress in Natural Science:Materials International2002，12，9： | 4 |
| 2 | Precise evaluation of uniform Doo-Sabin surfaces显示文摘Using eigenanalysis of uniform Doo-Sabin subdivision surfaces, parameterization approaches for two types of Doo-Sabin subdivision surfaces are developed, and evaluation methods for values and derivatives of Doo-Sabin surfaces at arbitrary parameters are presented by means of non-iterative approaches. Generalized basis functions for Doo-Sabin surfaces are also derived. Thus, the prejudice is disproved further that subdivision surfaces cannot be evaluated precisely. | WANG Huawei and QIN Kaihuai(Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China) | 2003 | Progress in Natural Science:Materials International2003，13，5： | 3 |
| 3 | IMAGE RENDERING FOR BUILDING CAD显示文摘IMAGERENDERINGFORBUILDINGCADZhangNan;QinKaihuaiAbstract:Thispaperpresentsarealisticimagesynthesissystemsuitabletobuildings.It... | Zhang Nan Qin Kaihuai | 1996 | Computer Aided Drafting,Design and Manufacturing1996，6，1： | 1 |
| 4 | Three-point recursion interpolation theory and algorithm of space circular arcs in a CNC system显示文摘 | Qin Kaihuai Bin Hongzan | 1990 | Computers in Industry1990，15，4： | 1 |
| 5 | Surface modeling with ternary interpolating subdivision显示文摘 | Wang Huawei Qin Kaihuai | 2005 | The Visual Computer2005，21，12： | 1 |
| 6 | Curve modeling with constrained B-spline wavelets 显示文摘 | Li Denggao Qin Kaihuai Sun Hanqiu | 2005 | Computer Aided Geometric2005，22，1： | 1 |
| 7 | Represening Quadric Surfaces Using NURBS Surfaces显示文摘 | Qin Kaihuai | 1997 | J of Comput Sci &Technol1997，12，3： | 1 |
| 8 | Continuity of non-uniform recursive subdivision surfaces显示文摘 | Qin Kaihuai Wang Huawei | 2000 | Science in China (Series E)2000，43，5： | 1 |
| 9 | GPU rendering for tiied multi-projector autostereoscopic display based on chromium显示文摘 | LUO JIANLI QIN KAIHUAI ZHOU YANXIA | 2010 | The Visual Computer2010，26，1： | 1 |
| 10 | Estimating recursion depth for Loop subdivision 显示文摘 | Wang Huawei Sun Hanqiu Qin Kaihuai | 2004 | International Journal of CAD/CAM2004，4，1： | 1 |
| 11 | An Adaptable-multilayer Fractional Fourier Transform Approach for Image Registration显示文摘 | Pan Wei Qin Kaihuai Chen Yao | 2009 | IEEE Transactions on Pattern Analysis and Machine Intelligence2009，31，3： | 1 |
| 12 | A new methodfor speeding up ray tracing NURBS SURFACES显示文摘 | Qin Kaihuai Gong Minglun Guan Youjiang | 1997 | Computer&Graphic1997，21，5： | 1 |
| 13 | Curve modeling with constrained B-spline wavelets显示文摘 | Li Denggao Qin Kaihuai Sun Hanqiu | 2005 | Computer Aided Geometric Design2005，22，1： | 1 |
| 14 | Curve modeling with constrained B-spline wavelets显示文摘 | LI DENGGAO QIN KAIHUAI SUN HANQIU | 2005 | Computer Aided Geometric Design2005，22，1： | 1 |
| 15 | A NEW METHOD FOR REPRESENTING THE CIRCLE BY NURBS显示文摘In this paper, a new algorithm for representing conics precisely is presented using NURBS ofdegree two. The algorithm requires only four control vertices, which is the minimum number of controlvertices compared with the other algorithms using the square control vertice configuration, to representa full circle using the full circumscribing square based representation. This paper also derives a new con-dition for NURBS to precisely represent conics and shows the necessary and sufficient condition of rep-resentation of a circular arc. | Qin Kaihuai Sun Jiaguang Dept. of Computer Science and Technology Tsinghua University, Beijing 100084, P. R. China | 1992 | Computer Aided Drafting,Design and Manufacturing1992，3，2： | 0 |
| 16 | A Fast Hidden-line Removal Algorithm for 3-Dimensional Buildings显示文摘AFASTHIDDEN-LINEREMOVALALGORITHMFOR3-DIMENSIONALBUILDINGSQinKaihuai;TongGeliang;ZhangNan;ChenDailin;LiYungui;ShenWenduAFASTHI... | Qin Kaihuai TongGeliang Zhang Nan Chen Dailin Li Yungui Shen Wendu | 1995 | Computer Aided Drafting,Design and Manufacturing1995，5，1： | 0 |
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