Forfattere
Dirk Burghardt, Siegfried Meier
Utgivelsesdato
1997
Journal
Semantic modeling for the acquisition of topographic information from images and maps, Basel, Birkhäuser Verlag
Sider
59-71
Beskrivelse
Symbolized images (maps) with a very high information density have to be generalized sometimes, ie objects have to be displaced reciprocally. A displacement algorithm which operates by the principle of the snakes concept is described. The addition of active splines, so-called snakes, to contours (attraction) is one possiblity to recognize indefinite contours. Another one is the reciprocal displacement of lines which is cxactly the inversion (repulsion) of the previous method. Due to this equivalency the snakes technique may be also applied to line displacement. The described algorithm of energy minimization pro-vides (carto) graphically sufficient solutions. Geometric and semantic control parameters take care to optical resolution, maintenance of topological structures, minimal changes in geometry and consider the object significance.
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D Burghardt, S Meier - Semantic modeling for the acquisition of topographic …, 1997