Sketching a virtual environment: modeling using line-drawing interpretation

Authors:
Alasdair Turner;Dave Chapman;Alan Penn
Affiliations:
VR Centre for the Built Environment, University College London, Gower Street, London, WC1E 6BT, UK;VR Centre for the Built Environment, University College London, Gower Street, London, WC1E 6BT, UK;VR Centre for the Built Environment, University College London, Gower Street, London, WC1E 6BT, UK
Venue:
Proceedings of the ACM symposium on Virtual reality software and technology
Year:
1999

Citing 8
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Abstract

Here we demonstrate the direct input to computer of a handdrawn perspective sketch to create a virtual environment. We either start with a photograph of a real environment or an existing VRML model, and then use a mouse or pen pad to sketch line drawings onto the scene. Visual clues and constraints from the existing background and line drawing, as well as heuristics for form recognition are used to build a 3D optimization problem. We use a multiple objective genetic algorithm to find a viable solution to the problem, and VRML output is generated, either for re-entry to the system or use in another system. Our software is currently available compiled for either a PC running Windows 98/NT or an SGI machine running IRIX 6.x.