| 基于小波的曲线任意放大 |
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| 引用本文： | 胡玲,袁修贵.基于小波的曲线任意放大[J].电脑与信息技术,2008,16(2):22-24. |
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| 作者姓名： | 胡玲 袁修贵 |
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| 作者单位： | 1. 湖南第一师范学校数理系,湖南,长沙,410205
2. 中南大学数学科学与计算技术学院,湖南,长沙,410083 |
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| 摘 要： | 文章利用小波多分辨理论,提出了任意比例放大曲线的方法.该算法简单,放大后的曲线失真小且比较光滑.同时,在理论上讨论了适于放大缩小曲线的小波基应具有的特征.理论和实验结果均说明双正交B样条小波和半正交B样条小波具有较好的几何特征,适于本文算法.
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| 关 键 词： | 放大曲线 任意比例 光滑 双正交B样条小波 半正交B样条小波 样条小波 小曲线 Wavelet Based Curves 几何特征 半正交 双正交 结果 实验 小波基 多分辨理论 比较 失真 算法 方法 比例放大 利用 |
| 文章编号： | 1005-1228(2008)02-0022-03 |
| 修稿时间： | 2008年3月24日 |
Enlarge Curves Arbitrarily Based On Wavelet |
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| HU Ling,YUAN Xiu-gui.Enlarge Curves Arbitrarily Based On Wavelet[J].Computer and Information Technology,2008,16(2):22-24. |
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| Authors: | HU Ling YUAN Xiu-gui |
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| Affiliation: | HU Ling1,YUAN Xiu-gui2(1.Mathematics , Science Department,Hunan First Normal College,Changsha,Hunan 410205,China,2.School of Mathematical Science , Computing Technology,Center South University,Hunan 410083,China) |
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| Abstract: | Based on wavelet multiresolution theory,an algorithm was put forward to enlarge curves arbitrarily and smoothly.This method calculates simply,after using appropriate wavelet function,the curve can be enlarged non-anamorphicly by this algorithm.This paper also discusses the characters of appropriate wavelet function for this algorithm.The theory and results both show that bi-orthogonal B-spline wavelets and semi-orthogonal B-spline wavelets have better geometrical characters and are appropriate to the algori... |
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| Keywords: | enlarge curves arbitrary scale smooth bi-orthogonal B-spline wavelets semi-orthogonal B-spline wavelets |
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