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  > Home > Activities > VIDET Project > Surface interpolation
 
 
 

Team's members:

The currently devised solution

A global Delaunay triangulation, constrained to contain the detected straight edges, is performed. The distance from the finger to the surface is computed along the straight line, determined by the last two sampled positions of the finger itself.

Alternative solutions

The hypothesis of having depth labels on all points of a Cartesian grid would allow to interpolate only locally, but this would require an intermediate interpolation; this would be both unreliable and time-consuming.
An interpolation limited to a strip along the projection of the finger trajectory is under study.
Later on, we plan to use a smooth interpolating surface, e.g. by B-splines.

 
 
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