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一种曲线平滑的自适应方法
引用本文:周焰,王祖喜,陈振羽,李德华.一种曲线平滑的自适应方法[J].计算机工程,2000,26(4):13-15.
作者姓名:周焰  王祖喜  陈振羽  李德华
作者单位:华中理工大学图象识别与人工智能研究所,国家教委图象处理与智能控制开放实验室,武汉430074
基金项目:国家自然科学基金!69775022
摘    要:基于曲线的参数方程和信号平滑滤波以及方向链码的基本思想,提出了一种基于Freeman链码和以张长为参数的参数方程的离散曲线自适应平滑算法,解决了图象处理中曲线提取后存在的不光滑问题。最后给出了一些对比实验结果,证明了本算法的有效性。

关 键 词:参数方程  自适应  曲线平滑  图象理解  图象处理

An Adaptive Algorithm of Curve's Smoothing
Zhou Yan,Wang Zuxi,Chen Zhengyu,Li Dehua.An Adaptive Algorithm of Curve''''s Smoothing[J].Computer Engineering,2000,26(4):13-15.
Authors:Zhou Yan  Wang Zuxi  Chen Zhengyu  Li Dehua
Abstract:Based on the basic theory of signal smoothing and parameter equation, a quick algorithm of curve's smoothing is proposed in this paper. The discrete curve Obtained form 2-D image is translated into the parameter space, and the processing of smoothing based on the two parameter equations x(s) and y(s) are carried out respectively. In this step. an adapted method is used, in which the windows' size will vary with the feature values, and the feature values are computed to identify the extent of noise in curve. And the algorithm is verified to be right. Finally, some examples are given.
Keywords:Parameter equation  Freeman director chin code  Smoothing  Adaptive  Window width  Arc length
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