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29 March 1988 Geo-Graphic Code Representation Of 3-D Objects From Their Pictorial Drawings
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The technique of geographic encoding for the representation of a 3-D object is introduced in this paper. The geographic codes consist of the number of visible vertices and surfaces, the vertex-surface description, the vertex-surface vector, the vertex-type description, and the vertex-link code. A novel method for automatic surface extraction from the pictorial drawing of a 3-D object is presented. This method converts a pictorial drawing into surface trees. For each candidate visible surface, a surface tree is generated from which a visible surface is automatically identified via tree tracing. The extracted surfaces are orderly arranged to generate the vertex-surface description (VSD) for the 3-D object. The other geographic codes are automatically generated from the vertex-surface description.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Julius T. Tou and Kuo-Chin Fan "Geo-Graphic Code Representation Of 3-D Objects From Their Pictorial Drawings", Proc. SPIE 0937, Applications of Artificial Intelligence VI, (29 March 1988);


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