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利用控制线段的实时图像变形方法 被引量：5

A Real-Time Image Deformation Method Based on Line Handles
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摘要 为了使用户能够通过在图像上选择一些控制句柄来操控图像的变形行为,提出一种使用线段作为控制句柄的实时图像变形方法.该方法按照控制线段的长度对网格的边长进行适当缩放,以产生相似变换的图像变形结果;图像变形过程中,在保持用户给定约束的情况下,尽可能保持图像网格边界顶点的拉普拉斯坐标和图像网格内部顶点的中间值坐标.最后通过实验验证了文中方法的有效性和实时性. Image deformation denotes a way to deform the image based on the position of the input control handles.This paper introduces an optimization-driven image deformation technique based on line handles.The goal of the optimization is that the Laplacian coordinates of the boundary vertices and the mean-value coordinates of the interior vertices are preserved,while satisfying the deformation constraints specified by the user.To get a realistic similar transformation,the length of an edge is scaled based on the length of the control lines.Experimental results demonstrate the effectiveness and performance of the proposed method.
作者 黄武 姚淑波 关胜亮 夏时洪
机构地区 中国科学院计算技术研究所前瞻中心 中国科学院研究生院 河北科技师范学院信息学院
出处 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2010年第12期2067-2072,共6页 Journal of Computer-Aided Design & Computer Graphics
基金 国家自然科学基金(U0935003)
关键词 图像变形 拉普拉斯坐标 中间值坐标 相似变换 image deformation Laplacian coordinate mean-value coordinate similar transformation
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献14

  • 1Sederberg T W,Parry S R.Free-form deformation of solid geometric models[J].ACM SIGGRAPH Computer Graphics.1986.20(4):151-160.
  • 2Lee S Y,Chwa K Y,Shin S Y.Image metamorphosis using snakes and free-form deformations[C] //Computer Graphics Proceedings,Annual Conference Series,ACM SIGGRAPH.New York:ACM Press.1995:439-448.
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  • 5Schaefer S,McPhail T,Warren J.Image deformation using moving least squares[J].ACM Transactions on Graphics.2006,25(3):533-540.
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二级参考文献13

  • 1黄坤武,唐杰,武港山.针对面片的Reeb图骨架抽取算法[J].系统仿真学报,2006,18(z1):52-56. 被引量：8
  • 2Yong-YouMa,HuiZhang,Shou-WeiJiang.Realistic Modeling and Animation of Human Body Based on Scanned Data[J].Journal of Computer Science & Technology,2004,19(4):529-537. 被引量：6
  • 3胡晓雁,梁晓辉,赵沁平.自动匹配虚拟人模型与运动数据[J].软件学报,2006,17(10):2181-2191. 被引量：9
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  • 5WARREN J, JU T, EICHELE G, et al. A geometric database for gene expression data[ C]// Proceedings of the 2003 Eurographics/ ACM SIGGRAPH symposium on Geometry processing. New York: ACM International Conference Proceeding Series, 2003, 43:166 - 176.
  • 6SEDERBERG T W, PARRY S R. Free-form deformation of solid geometric models[ C]// Proceedings of ACM SIGGRAPH 1986. New York: ACM Press, 1986:151 - 160.
  • 7LEE S Y, CHWA K Y, SHIN S Y. Image metamorphosis using snakes and free-form deformations[ C]// SIGRAPH '95: Proceedings of the 22nd annual conference on Computer graphics and interactive techniques. New York: ACM Press, 1995:439 -448.
  • 8BEIER T, NEELY S. Feature-based image metamorphosis[ C]// SIGGRAPH '92: Proceedings of the 19th annual conference on Computer graphics and interactive techniques. New York: ACM Press, 1995:35-42.
  • 9IGARASHI T, MOSCOVICH T, HUGHES J F. As-rigid-as-possible shape manipulation[ J]. ACM Transactions on Graphics, 2005, 24 (3): 1134-1141.
  • 10SCHAEFER S, MCPHAIL T, WARREN J. Image deformation using moving least squares [ J]. ACM Transactions on Graphics, 2006, 25(3): 533-540.

共引文献19

同被引文献11

引证文献5

二级引证文献7

计算机辅助设计与图形学学报
2010年 第12期

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