基于K均值聚类的传输函数设计方法

摘要

在直接体绘制中，传输函数定义了从体数据属性到光学属性的映射关系，直接决定了体绘制的效果，是体绘制研究的关键技术之一。传统的多维传输函数是基于体数据和梯度体数据进行设计的，本文提出基于K均值聚类的传输函数设计方法，并在此基础上进行气象数据的分类方法研究，实现基于GPU的气象台风数据的直接体绘制。%In the direct volume rendering , transfer function defines the mapping rules between data property and the optical prop -erty, so it determines the effect of the image .The traditional multidimensional transfer functions are based on volume data and gradient data, this paper proposed a method based on K-means clustering.Furthermore, it realized weather data sorting and based on which it realized direct volume rendering based on GPU programming .