In this paper, a method of generating structural descriptions of stereo image pairs and their matching t o Tecouer 3-0 f o r m of objects in space, is discussed. T h e method consists of the following steps: firstly, straight line segments are extracted in both images and the relations a m o n g t h e m are investigated. T h e relational subgraphs are constructed then, and the correspondence graph is created. Using the "stable marriage" searching algorithm the features in one image corresponding to features in the other image are found. T h e method was tested o n a set of aerial stereo images of urban .scenes.