Geo-Graphic Code Representation Of 3-D Objects From Their Pictorial Drawings

Julius T. Tou; Kuo-Chin Fan

doi:10.1117/12.946986

29 March 1988 Geo-Graphic Code Representation Of 3-D Objects From Their Pictorial Drawings

Julius T. Tou, Kuo-Chin Fan

Proceedings Volume 0937, Applications of Artificial Intelligence VI; (1988) https://doi.org/10.1117/12.946986
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

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.

Citation Download Citation

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); https://doi.org/10.1117/12.946986

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