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三维局部相似目标匹配的微分几何方法*

, PP. 586-591

Keywords: 曲率,微分几何,局部相似目标,匹配,模式识别

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Abstract:

提出一种基于高斯曲率和平均曲率的三维局部相似目标匹配方法.首先筛选出待匹配曲面上固有特征相似的点,形成点对集合.然后利用非对称三角形骨架来定位三维曲面,在点对集合中寻找相似三角形对,并导出其空间变换,构成三角形对集合.最后通过得分函数,求出三角形对集合中空间变换的最佳值,得出最佳匹配.实验表明,该方法对三维局部相似目标匹配具有较好的识别效率,针对不规则三维曲面,能够保证较好的匹配速度.

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