Wires: a geometric deformation technique
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
FreeDrawer: a free-form sketching system on the responsive workbench
VRST '01 Proceedings of the ACM symposium on Virtual reality software and technology
Iterative Methods for Sparse Linear Systems
Iterative Methods for Sparse Linear Systems
Lofting curve networks using subdivision surfaces
Proceedings of the 2004 Eurographics/ACM SIGGRAPH symposium on Geometry processing
SmoothSketch: 3D free-form shapes from complex sketches
ACM SIGGRAPH 2006 Papers
FiberMesh: designing freeform surfaces with 3D curves
ACM SIGGRAPH 2007 papers
Adaptive patch-based mesh fitting for reverse engineering
Computer-Aided Design
3D User Interfaces: New Directions and Perspectives
IEEE Computer Graphics and Applications
A fast interactive reverse-engineering system
Computer-Aided Design
Geometric fairing of irregular meshes for free-form surface design
Computer Aided Geometric Design
SMI 2012: Short Sketch based 3D modeling with curvature classification
Computers and Graphics
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This paper presents a system for designing free-form surfaces starting from a sketched 3D irregular curve network. By simply dragging a smart-pen device in space, the user draws and refines arbitrary 3D style-curves that define an outline of the desired shape. Unlike previous touch-based sketching systems, the user-drawn strokes can both stay on the model surface to reconstruct parts of an existing object, or freely sketch 3D style-lines of non-existing parts to design new geometry. The wireless smart-pen device is supported by an active stereo acquisition system which makes use of two infrared cameras. For a given set of 3D curves, the system automatically constructs a low-resolution mesh that is naturally refined to produce a smooth surface which preserves curvature features defined by the user on the curve network. The interpolating surface is obtained by applying a high-order diffusion flow. We present an efficient two step approach that first diffuses curvature values preserving the curvature constraints, and then corrects the surface to fit the resulting curvature vector field and interpolating the 3D curve network. This leads to fast implementation of a feature preserving fourth order geometric flow. We show several examples to demonstrate the ability of the proposed advanced design methodology to create sophisticated models possibly having sharp creases and corners.