School of Computer Science and Software Engineering

09072007

ShapePalettes: Interactive Normal Transfer via Sketching

Michael Brown
School of Computer Engineering NTU Singapore

Abstract:

We present a simple interactive approach to specify 3D shape in a
single view using "shape palettes". The interaction is as follows:
draw a simple 2D primitive in the 2D view and then specify its
3D orientation by drawing a corresponding primitive on a shape
palette. The shape palette is presented as an image of some familiar
shape whose local 3D orientation is readily understood and can
be easily marked over. The 3D orientation from the shape palette
is transferred to the 2D primitive based on the markup. As we will
demonstrate, only sparse 3D markup is needed to generate expressive
and detailed 3D surfaces. This markup approach can be used
to model freehand 3D surfaces drawn in a single view, or combined
with image-snapping tools to quickly extract surfaces from images
and photographs.