一种改进的正视图三维模型特征提取算法

随着多媒体与网络技术的迅速发展,大量的三维模型产生并被广泛使用,导致三维模型查询成为紧迫的研究内容。其中基于内容的三维模型特征提取是一个重要的研究课题。文章在研究现有三维模型特征提取算法的基础上,提出了一种改进的正视图特征提取算法,通过提取正视图的灰度统计量平均值、均方差和三阶矩为特征,提高了算法的精确度。实验表明,算法在获得较好查准率与查全率的同时,降低了算法的运行时间。

An Improved Feature Extration Algorithm for Elevation-Based 3D Model

With the rapid development of multi-media and network technology,a large number of 3D models have been produced and widely used.This has made the searching for specific 3D models as a vital issue.Content-based 3D model feature extraction is an important research topic.This paper,which researched the existing feature extraction algorithms,proposed an improved feature extraction algorithm for elevation-based 3D model.By extracting the average,mean square error and three-order matrix of gray statistics as the features,the accuracy of the algorithm is improved.Experiments show that the algorithm obtains better precision-recall and reduces the running time.