Extraction of Characteristic Regions

Abstract

As discussed in Section 2.4, in the analysis of complex aerial photographs it is almost impossible to build an exact world model which can predict the locations of objects and guide the scene interpretation process as is done in the analysis of blocks-world scenes [69] and human faces [38]. In order to realize an efficient and reliable analysis, however, it is desirable to focus the analysis on some local area, where some object is assumed to exist, and to analyze it in detail using a special-purpose program designed for a specific object. Thus, we have introduced a focusing mechanism in the system for the structural analysis of aerial photographs.