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Title: An evolutionary approach to determining hidden lines from a natural sketch
Authors: Bonnici, Alexandra
Camilleri, Kenneth P.
Keywords: Three-dimensional display systems
Three-dimensional modeling
Visual programming languages (Computer science)
Issue Date: 2016
Publisher: IEEE Computer Society
Citation: Bonnici, A., & Camilleri, K. (2016). An evolutionary approach to determining hidden lines from a natural sketch. IEEE Symposium on Visual Languages and Human-Centric Computing, VL/HCC 2016, Cambridge. 26-30.
Abstract: This paper focuses on the identification of hidden lines and junctions from natural sketches of drawings that exhibit an extended-trihedral geometry. Identification of hidden lines and junctions is essential in the creation of a complete 3D model of the sketched object, allowing the interpretation algorithms to infer what the unsketched back of the object should look like. This approach first labels the sketched visible edges of the object with a geometric edge label, obtaining a labelled junction at each of the visible junctions of the object. Using a dictionary of junctions with visible and hidden edges, these labelled visible junctions are then used to deduce the edge interpretation and orientation of some of the hidden edges. A genetic algorithm is used to combine these hidden edges into hidden junctions, evolving the representation of the hidden edges and junctions until a feasible hidden view representation of the object is obtained.
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