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方向关系研究多针对简单空间对象,限制了空间关系建模的理论与应用研究.为此,基于定性方法,针对不确定区域间的方向关系表示模型,采用宽边界统一表示区域的不确定边界,利用基本主方向关系的组合描述不确定区域间的方向关系;在此基础上,定义不确定区域间的方向关系约束与约束满足问题,利用路径相容方法提出了一种不确定区域间方向关系的相容性检测算法,并分析了算法的推理复杂性,从而提出不确定区域间的方向关系推理模型.
For the simple spatial objects, the research on the directional relationship mostly restricts the theory and application of the spatial relation modeling.Therefore, based on the qualitative method, aiming at the model of the directional relation between the uncertain regions, the boundary of the region is represented by the wide boundary, Using the combination of basic principal direction relations to describe the directional relationship between the uncertain regions; on this basis, defining the directional relationship constraints and the constraint satisfaction problems among the uncertain regions, and using the path-compatible method to propose an uncertain inter-regional directional relationship The compatibility detection algorithm is analyzed, and the inference complexity of the algorithm is analyzed, so that the direction relation inference model between uncertain regions is proposed.