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Example based painting generation 总被引:1,自引:0,他引:1
GUO Yan-wen YU Jin-hui XU Xiao-dong WANG Jin PENG Qun-sheng 《浙江大学学报(A卷英文版)》2006,7(7):1152-1159
INTRODUCTION Non-photorealistic rendering (NPR) is a domain of computer graphics that has received more and more attention in the past decade. Different from realistic rendering, NPR concentrates on communicating the main context of an image and explores the rendering effect of the scene with the artistic styles, rather than seeking subtle geometry details and naturally physical attribute. Many research efforts were dedicated to simu- lating the traditional media (Hertzmann et al., 2001… 相似文献
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An efficient method for tracing planar implicit curves 总被引:1,自引:0,他引:1
YU Zheng-sheng CAI Yao-zhi OH Min-jae KIM Tae-wan PENG Qun-sheng 《浙江大学学报(A卷英文版)》2006,7(7):1115-1123
INTRODUCTION Tracing a planar implicit curve f(x, y)=0 on a rectangular region [xl, xr]×[yb, yt] is of great interest in Computer-Aided Design and Computer Graphics. While parametric curves are easy to plot, plotting implicit curves is a challenging problem. Planar im- plicit curve plotting method can be classified into two categories (Shou et al., 2005; Martin et al., 2002; Lopes et al., 2002). In the first category are subdivi- sion methods (Shou et al., 2005; Martin et al., 2002) … 相似文献
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LIU Shi-guang WANG Zhang-ye GONG Zheng CHEN Fei-fei PENG Qun-sheng 《浙江大学学报(A卷英文版)》2006,7(7):1099-1106
INTRODUCTIONTornado is one of the most terrible natural phe- nomena in the world. It causes incredible amounts of damage and destroys significant numbers of facilities every year. No wonder it receives great attention as a major research topic in many fields. Realistic simu- lation of tornado is also a great challenge for com- puter graphics researchers. It provides useful infor- mation for natural disaster prevention and can be integrated into entertainment, computer games, etc. Most to… 相似文献
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高群盛 《体育科技文献通报》2011,19(4):29-31,33
篮球裁判工作是开展篮球运动和搞好篮球竞赛工作必不可少的重要组成部分,虽然篮球运动的主体是运动员和教练员的活动,但是作为比赛不可缺少的组成部分,裁判员的执裁水平对运动员的对抗能力也会产生很大的影响。研究结果表明:我国运动员身体对抗能力的差距主要表现在有身体接触的强对抗中运用技术的能力明显落后于世界各篮球先进国家;裁判员执裁水平的欠缺导致运动员对规则理解存在误区和运动员不适应国际裁判的判罚尺度;国内联赛执裁的不公给队员养成了不好的对抗习惯。 相似文献
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骨骼肌缺血再灌注损伤机制及其防治进展 总被引:1,自引:0,他引:1
本文综述了骨骼肌缺血再灌注损伤的机制和防治进展。认为缺血再灌注损伤不仅与自由基、钙超载和白细胞等因素相关,而且细胞凋亡和一氧化氮等因素同样是其重要的致病环节;其防治策略包括缺血预处理和抗氧化等措施,并不断有新方法被发现并应用于临床。缺血再灌注损伤与多种临床疾病及运动损伤密切相关,探讨骨骼朋缺血再灌注损伤的机制对再灌注损伤的预防和处理及骨骼肌功能的恢复具有重要的实践意义。 相似文献
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在实验类网络课程中,有关实验操作的动画通常都是单一的演示模式,在细胞生物学实验专题网站的制作和实践的过程中,发现通过对Flash动画简单的脚本编程和合理的影片剪辑设置,可以让动画中的实验工具由学习者自主操作,从而达到通过动画简单模拟生物学实验的目的。一方面提高了学习者兴趣,另一方面加深其对实验内容的理解。 相似文献
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江苏省乡镇居民体育参与的主要因子分析 总被引:1,自引:0,他引:1
高群盛 《南京体育学院学报(社会科学版)》2005,19(5):37-39
采用分层抽样的方法,通过对江苏省1115名乡镇居民参与体育活动动因的调查,运用因子分析方法,获得江苏省乡镇居民参与体育活动的五个主要因子,它们依次是:1.社会交往因子,2.运动健美因子,3.生存因子,4.体能因子.就四个因子的具体内涵及其产生原因作出了相关的分析. 相似文献
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In this paper we propose a robust watermarking algorithm for 3D mesh. The algorithm is based on spherical wavelet transform. Our basic idea is to decompose the original mesh into a series of details at different scales by using spherical wavelet transform; the watermark is then embedded into the different levels of details. The embedding process includes: global sphere parameterization, spherical uniform sampling, spherical wavelet forward transform, embedding watermark, spherical wavelet inverse transform, and at last resampling the mesh watermarked to recover the topological connectivity of the original model. Experiments showed that our algorithm can improve the capacity of the watermark and the robustness of watermarking against attacks. 相似文献
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《数控加工工艺与编程》及《数控技术》课程的教学方法探讨 总被引:1,自引:0,他引:1
《数控加工工艺与编程》及《数控技术》课程又是一门学生难以掌握、教师难于讲授的应用技术型科目。围绕如何提高教学质量这一核心问题,作者提出:必须以学生为主体,采用互动的教学方法,主动激发学生对数控技术的兴趣;采用多种灵活的教学手段引导学生主动思考,从而提高独立分析的能力。 相似文献