关键词: 分类, 体绘制积分, 预积分分类, 直接体绘制

Abstract: volume rendering methods have been the active research area since it’s the ability of visualizing the inner structure of 3D volume data. However, the trade-off between the rendering speed and acquiring high-quality rendered images because of the increasing of sampling rate restricts the further development of direct volume rendering methods. The paper introduces the pre-integrated classification technique on the basis of expatiating the classification and volume rendering integration. The pre-integrated classification has the potential to improve the accuracy and the performance of the volume renderer at the same time. In the end, some examples and advices for pre-integrated classification technique are given.

Key words: classification, volume rendering integral, pre-integrated classification, direct volume rendering