A New Approach For Line Extraction and itsIntegration in a Multi-Scale, Multi-Abstraction-LevelRoad Extraction System
نویسندگان
چکیده
Road extraction is an active area of research. Because roads are elongated objects they can be described symbolically by means of lines. This paper shows, theoretically as well as in practice, why and under which circumstances lines extracted from an image are an abstract representation of roads. Especially the importance of scale is emphasized and the connection between multiple scales and multiple abstraction levels by means of so-called scale-space events is derived. The investigations are based on a sophisticated model for line extraction for which the scales where events occur can be determined analytically. Results of a multi-scale multi-abstraction-level road extraction system, which is based on the theoretical and practical investigations, are presented.
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تاریخ انتشار 1996