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国家自然科学基金(60021201): 作品数：31被引量：155H指数：8; 导出分析报告; 相关作者：鲍虎军王国瑾华炜彭群生王修晖更多>>; 相关机构：浙江大学中国计量学院更多>>; 相关期刊：《Science China Mathematics》《中国机械工程》《计算机辅助设计与图形学学报》《自然科学进展》更多>>; 相关主题：SCHEDULINGKNOWNSIZE虚拟现实多投影显示墙更多>>; 相关领域：自动化与计算机技术理学医药卫生天文地球更多>>

Single machine scheduling with semi-resumable machineavailability constraints: 《Applied Mathematics(A Journal of Chinese Universities)》2011年第2期177-186,共10页CHEN Yong ZHANG An TAN Zhi-yi; Supported by the National Natural Science Foundation of China(10971191, 60021201);Fundamental Research Funds for the Central Universities(2010QNA3040);the China Postdoctoral Science Foundation; This paper considers the semi-resumable model of single machine scheduling with anon-availability period. The machine is not available for processing during a given time interval.A job cannot be completed before the n...; 关键词：SCHEDULING Machine maintenance Approximation algorithm Worst-case analysis.

A novel algorithm for explicit optimal multi-degree reduction of triangular surfaces被引量：4: 《Science in China(Series F)》2008年第1期13-24,共12页HU QianQian WANG GuoJin; Supported by the National Grand Fundamental Research 973 Program of China (Grant No. 2004CB719400);the National Natural Science Foun-dation of China (Grant Nos. 60673031 and 60333010);the National Natural Science Foundation for Innovative Research Groups (Grant No. 60021201); This paper introduces the algebraic property of bivariate orthonormal Jacobi polynomials into geometric approximation. Based on the latest results on the transformation formulae between bivariate Bernstein polynomials...; 关键词：computer aided design data compression triangular Bezier surface multi-degree reduction Bernstein polynomial Jacobi polynomial L2 norm

A new method for designing a developable surface utilizing the surface pencil through a given curve被引量：8: 《Progress in Natural Science:Materials International》2008年第1期105-110,共6页Hongyan Zhao Guojin Wang; This work was supported by the National Basic Research Program of China(Grant No.2004CB719400);National Natural Science Foundation of China(Grant Nos.60673031,60333010,and 60021201).; This paper proposes a new method for designing a developable surface by constructing a surface pencil passing through a given curve, which is quite in accord with the practice in industry design and manufacture. By ut...; 关键词：CAD/CAM Developable surface GEODESIC Frenet frame

基于非线性最优化的服装混合维度放码方法被引量：4: 《浙江大学学报（工学版）》2008年第2期321-326,共6页陈龙陆国栋王进张东亮; 国家自然科学基金资助项目(60021201);教育部高校博士点基金资助项目(20060335118); 通过比较二维放码和三维放码的优缺点,提出了一种混合维度放码方法,将需要放码的二维裁片映射到三维人体上形成衣片,当三维人体变形时,对应的衣片也相应地发生变形.以三维衣片和二维裁片的边角特征作为放码的约束条件,构造非线性目标函...; 关键词：混合维度放码非线性方程组最优化

Online uniform machine covering with the known largest size被引量：1: 《Progress in Natural Science:Materials International》2007年第11期1271-1278,共8页Cao Shunjuan Tan Zhiyi; Supported by National Natural Science Foundation of China (Grant Nos 10671177 and 60021201);the Natural Science Foundation of Zhe-jiang Forestry University (Grant No 2006FK36); This paper investigates the semi-online scheduling problem with the known largest size on two uniform machines. The objective is to maximize the minimum machine completion time. Both lower bounds and algorithms are gi...; 关键词：scheduling and covering uniform machine design and analysis of algorithm ONLINE competitive ratio.

Constrained multi-degree reduction of rational Bézier curves using reparameterization被引量：1: 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2007年第10期1650-1656,共7页CAI Hong-jie WANG Guo-jin; Project supported by the National Basic Research Program (973) of China (No. 2004CB719400);the National Natural Science Founda-tion of China (Nos. 60673031 and 60333010);the National Natural Science Foundation for Innovative Research Groups of China (No. 60021201); Applying homogeneous coordinates, we extend a newly appeared algorithm of best constrained multi-degree reduction for polynomial Bezier curves to the algorithms of constrained multi-degree reduction for rational Bezie...; 关键词：Rational Bezier curves Constrained multi-degree reduction Reparameterization

State space approach for joint estimation of activity and attenuation map from PET emission sinograms: 《Progress in Natural Science:Materials International》2007年第5期614-617,共4页Liu Huafeng You Hongshun Shi Pengcheng; Supported by National Program on Key Basic Research Projects (Grant No. 2003CB716100);the Hong Kong Research Grants Council (HKUST6151/03E);National Natural Science Foundation of China (60021201);the Key Program of Sci & Tech Department of Zhejiang Province (2005C21019); Quantitative estimation of radioactivity map has important clinical implications for better diagnosis and understanding of cancers. Although attenuation map and activity map are usually treated sequentially, they can ...; 关键词：positron emission tomography attenuation correction state space methods

三角曲面显式最佳降多阶的一个新颖算法被引量：1: 《中国科学（E辑）》2007年第8期989-999,共11页胡倩倩王国瑾; 国家重点基础研究规划(批准号:2004CB719400);国家自然科学基金(批准号:60673031;60333010);国家自然科学基金创新研究群体(批准号:60021201)资助项目; 计算机辅助设计(CAD)系统中的数据通讯和数据压缩经常需要把参数曲面近似地降阶.而其中对三角曲面一次性降多阶是一个悬而未决的技术难题.文中把三角Jacobi基正交的代数性质应用到几何逼近,借助三角Bernstein基和三角Jacobi基相互转换...; 关键词：计算机辅助设计数据压缩三角BEZIER曲面降多阶 Bernstein多项式Jacobi多项式 L2范数

基于自适应遗传算法的手势识别被引量：16: 《计算机辅助设计与图形学学报》2007年第8期1056-1062,共7页王修晖鲍虎军; 国家自然科学基金(60021201);国家"九七三"重点基础研究发展规划项目(2002CB312102); 基于小样本库的手势识别是先进人机交互研究中的一个重要分支.根据Tortoise人手模型训练手势模式库并结合交互者的具体手部特征进行手形训练,生成适用于特定交互者的手势模式库.在交互过程中,根据来自一个或多个同步摄像头的视频信息进...; 关键词：虚拟现实手势交互人手模型手势识别自适应遗传算法

Convexity-preserving interpolation of trigonometric polynomial curves with a shape parameter: 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2007年第8期1199-1209,共11页PAN Yong-juan WANG Guo-jin; Project supported by the National Basic Research Program (973) of China (No. 2004CB719400);the National Natural Science Founda-tion of China (Nos. 60673031 and 60333010) ;the National Natural Science Foundation for Innovative Research Groups of China (No. 60021201); In computer aided geometric design(CAGD) ,it is often needed to produce a convexity-preserving interpolating curve according to the given planar data points. However,most existing pertinent methods cannot generate con...; 关键词：Computer aided geometric design （CAGD） α-trigonometric polynomial curves INTERPOLATION Convexity-preserving Shape parameter

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