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一种改进的锥形方向关系模型 被引量:6

An Improved Cone-based Model for Describing Spatial Direction Relations
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摘要 根据Gestalt心理学的空间认知原理,提出了一种改进的锥形方向关系模型,其基本思想是:首先以参考目标的MBR(minimum bounding rectangle)的四条边界的中点作为起点,分别构建N、S、W、E等4个锥形方向区域;然后,利用锥形方向区域的边界、MBR的边界及其延长线,对空间方向重新进行划分,从而得到改进的锥形模型。实验表明该模型能够有效地克服现有锥形模型中存在的缺陷。 Using spatial cognitive principles drawn from the Gestalt psychology, an improved conebased model is proposed for computing and describing spatial direction relations. The basic idea of the model is. first, calculate the MBR (minimum bounding rectangle) of the reference object; then, take the midpoints of the four edges of the MBR as the starting points to construct four cone direction re- gions (N, S, W, E) ; finally, use the edges of the four cone direction regions, the edges of the MBR and their extension lines to re-divide spatial directions. Experiments show that the improved cone- based model can effectively overcome the defects in the existing cone-based models.
出处 《武汉大学学报(信息科学版)》 EI CSCD 北大核心 2014年第2期186-190,共5页 Geomatics and Information Science of Wuhan University
基金 国家科技支撑计划资助项目(2013BAB05B01) 数字制图与国土信息应用工程国家测绘地理信息局重点实验室开放研究基金资助项目(GCWD201210) 兰州交通大学青年科学基金资助项目(2013001) 地理空间信息工程国家测绘地理信息局重点实验室开放研究基金资助项目(201313)~~
关键词 目标 方向关系 锥形模型 MBR中图法 objects spatial direction relations cone-based model MBR
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参考文献16

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