摘要
从视觉分辨原则出发,以空间邻近图为支撑几何构造,提出点状军标群聚合显示新方法。该方法首先以Delaunay三角网为工具,计算点状军标群空间邻近关系,生成空间邻近图,而后基于利用视觉分辨原则,基于空间邻近图通过连接边剪枝、群组聚类和显示替换等步骤实现聚合显示。仿真实验结果表明,该方法能够有效解决点状军标空间占位冲突,而且在多比例尺聚合显示条件下,保持聚合结果层次性,符合视觉认知规律。
Visual perceptionprinciples plays an important role in the recognition of tactical symbols,namely the law of the minimum size of symbol and the law of the minimum gap size between symbolsand and others,etc.Based on the visual perception principles above,a novel method has been developed for aggregation display of tactical symbols.The spatial neighborhood analysis is first conducted by Delaunay triangulation.Based on the neighborhood graph,the edges of graph are pruned according to minimum size of gap.Then the process of grouping and symbol substitution is conducted to realize the aggregation display of tactical symbols.The experiment shows that the algorithm can remove spatial conflictseffectively and preserve the hierarchical relationship between aggregation results in different scales.
出处
《中国电子科学研究院学报》
2013年第4期418-422,共5页
Journal of China Academy of Electronics and Information Technology
关键词
点军标群
聚合显示
DELAUNAY三角网
视觉分辨原则
cluster of tactical symbols
symbol aggregation
delaunay triangulation
visual perception principles
