CAJ | 학술논문

为了解决三维矢量场可视化中流线数量过多造成的遮挡与视觉混乱问题，同时保证流线能够准确描述矢量场变化规律与重要特征，提出了一种基于特征保持的视点相关三维矢量场流线简化方法。采用粒子跟踪生成3D矢量场流线集，并进行视点相关映射；对流线集进行特征保持计算；基于流线视觉效果度量对流线集进行迭代简化计算，从而实现流线集的有效简化。实验结果表明，能够有效保持矢量场的物理特征，且具有较好的流线视觉效果。
위료해결삼유시량장가시화중류선수량과다조성적차당여시각혼란문제，동시보증류선능구준학묘술시량장변화규률여중요특정，제출료일충기우특정보지적시점상관삼유시량장류선간화방법。채용입자근종생성3D시량장류선집，병진행시점상관영사；대류선집진행특정보지계산；기우류선시각효과도량대류선집진행질대간화계산，종이실현류선집적유효간화。실험결과표명，능구유효보지시량장적물리특정，차구유교호적류선시각효과。
The streamline method is an important method in the visualization of 3D vector fields.A view-dependent streamline simplification method for 3D vector fields based on feature-preservation was proposed to solve the problems of streamline occlusion and visual confusion caused by excessive streamlines,and to ensure the streamlines could present the variation law and important features of vector fields exactly.A streamline set of 3D vector fields was generated by particle tracking and was mapped between view-dependents.A feature-preservation computation of the streamline set was implemented.The streamline set is effectively simplified by computing visual effect metric based on iteration.Experimental results show that the visual effects of the streamlines are enhanced on the basis of valid feature-preservation of vector fields.