Using vanishing points for camera calibration
International Journal of Computer Vision
Constraints for interpretation of line drawings under perspective projection
CVGIP: Image Understanding
Modeling and rendering architecture from photographs: a hybrid geometry- and image-based approach
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Tensorial calculus of line and plane in homogeneous coordinates
COMPUGRAPHICS '96 Proceedings of the fifth international conference on computational graphics and visualization techniques on Visualization and graphics on the World Wide Web
Vers des modeleurs 3D créatifs: étude de dessins d'architectes
IHM '02 Proceedings of the 14th French-speaking conference on Human-computer interaction (Conférence Francophone sur l'Interaction Homme-Machine)
Svalabard: une table à dessin virtuelle pour la modélisation 3D
IHM 2004 Proceedings of the 16th conference on Association Francophone d'Interaction Homme-Machine
Vers une interface multimodale pour une assistance à la conception architecturale
IHM 2004 Proceedings of the 16th conference on Association Francophone d'Interaction Homme-Machine
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We present a new approach for accurate and fast reconstruction of 3D models from hand-drawn perspective sketches and imposed geometric constraints. A distinctive feature of the approach is the decomposition of the reconstruction process into the stages of correction of the 2D sketch and elevation of the 3D model. All 3D constraints that describe the spatial structure of the model are strictly satisfied, while preferences that describe the model projection are treated in relaxed manner. The constraints are subdivided into the projective, affine and metric ones and expressed in algebraic form by using the Grassmann-Cayley algebra. The constraints are resolved one by another following the order of their types by using the local propagation methods. The preferences allow to apply linear approximations and to systematically use formal methods.