关键词: 空间关系, 外部参考框架, 四叉树直方图, 自然语言描述, 模糊集

Abstract:

In linguistic scene descriptions, how to automatically build the description of spatial relations between objects is an important task of linguistic scene description. A method of fuzzy directional relations that rely on the computation of quadtree histogram is introduced. And a system is constructed able to choose the suitable directional relations terms, the distance relations terms, a humanlike linguistic description of the spatial relations is generated as then. Excellent results from several synthetic and real image examples show that the applicability of this approach works well.

Key words: spatial relations, extrinsic reference framework, quadtree histogram, natural language descriptions, fuzzy set