Using Context to Repair Partial Occlusions in Topographic Data

1. Introduction This paper addresses the segmentation problem that frequently occurs in topographic information. This is where one topographic object (such as a road or rail bridge) obscures a segment of an underlying object (such as a river). A serious consequence of occlusions is that the obscured object is frequently divided into two apparently separate objects, eliminating the identity and integrity of the composite object. This is a particular problem for computational processing of topographic data, as the disunited segments can hinder any processing that is based on the composite object.