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一种半球面方位关系表示模型

, PP. 11-15

Keywords: 方位关系,半球面,最小边界扇区

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Abstract:

提出一种表达半球面方位关系的模型——最小边界扇区模型(MBS),将半球面上区域自上而下正投影到底面,且根据参考对象在底面的投影位置,将投影面划分为12个原子区域。根据研究区域占原子区域的个数等信息来刻画区域间方位关系,不但可表达出左右等方位关系,还可通过区域上点到中心的距离关系定性表达半球面上区域的高度关系等信息。给出MBS模型中可能存在的1932种情形。为进一步研究MBS模型下的推理及复合表的构造,给出此模型下的关系矩阵表示方法,通过此关系矩阵亦可方便推知原半球面上区域间的方位关系。

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