计算机科学 ›› 2015, Vol. 42 ›› Issue (6): 293-295.doi: 10.11896/j.issn.1002-137X.2015.06.061
孙挺,张锦华,耿国华
SUN Ting, ZHANG Jin-hua and GENG Guo-hua
摘要: 特征提取是三维模型检索中的关键。给出了基于局部特征概率密度估计的三维模型特征提取体系框架。针对三维表面局部几何特征集,利用核密度估计方法估计选定目标点的特定局部特征密度构成特征向量,用以描述三维模型。抽取三维网格模型的单元特征及多个单元特征组合而成的多元特征 支持实现三维模型检索。实验验证了其检索性能优于基于统计的直方图特征提取方法。
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