【摘要】 体绘制技术作为可视化技术的一个重要分支,已经得到了迅速发展。本文不仅描述了光线投射法、溅射法、错切-变形法,而且还阐述了频域体绘制法、基于小波的体绘制法,在描绘了以上算法的基本知识的基础上,对它们进行了分析与评价,提出充分利用光线投射算法的各种相关性对图像进行采样及绘制,将有利于体绘制技术的进一步发展和推广应用。更多还原

【Abstract】 Volume rendering techniques,as an important area of visualization,have made great progress.The typical algorithms about volume rendering including ray-casting,splatting and shear-warp were summarized and the frequency domain volume rendering,wavelet-based volume rendering were described,and then their features were evaluated on the base of describing the basic knowledge of the algorithms.At last,the sampling and rendering image were proposed by taking full advantage of all kinds of coherences of the ray-casting algorithm,which would be propitious to go further development and spread application of the volume rendering technique.更多还原