An optimization-based approach to the interpretation of single line drawings as 3D wire frames
International Journal of Computer Vision
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Teddy: a sketching interface for 3D freeform design
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Interpreting a 3D object from a rough 2D line drawing
VIS '90 Proceedings of the 1st conference on Visualization '90
Frontal geometry from sketches of engineering objects: is line labelling necessary?
Computer-Aided Design
Technical Section: An optimisation-based reconstruction engine for 3D modelling by sketching
Computers and Graphics
A freehand sketching interface for progressive construction of 3D objects
Computers and Graphics
CIGRO: a minimal instruction set calligraphic interface for sketch-based modeling
ICCSA'03 Proceedings of the 2003 international conference on Computational science and its applications: PartIII
Can machines interpret line drawings?
SBM'04 Proceedings of the First Eurographics conference on Sketch-Based Interfaces and Modeling
Sketch-based search and composition of 3D models
SBM'08 Proceedings of the Fifth Eurographics conference on Sketch-Based Interfaces and Modeling
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We present an intuitive and interactive freehand sketching interface for 3D polyhedrons reconstruction. The interface mimics sketching with pencil on paper and takes freehand sketches as input directly. The sketching environment is natural by allowing sketching with discontinuous, overlapping and multiple strokes. The input sketch is a natural line drawing with hidden lines removed that depicts a 3D object in an isometric view. The line drawing is interpreted by a series of 2D tidy-up processes to produce a vertex-edge graph for 3D reconstruction. A novel reconstruction approach based on three-line-junction analysis and planarity constraint is then used to approximate the 3D geometry and topology of the graph. The reconstructed object can be transformed so that it can be viewed from different viewpoints for interactive design or as immediate feedback to the designers. A new sketch can then be added to the existing 3D object, and reconstructed into 3D by referring to the existing 3D object from the current viewpoint. The incremental modeling enables a 3D object to be reconstructed from multiple sketching sessions from different viewpoints. However, the interface is limited to reconstructing trihedrons from sketches without T-junctions to avoid ambiguity in the hidden topology determination.