Control Point Adjustment
Due to its local nature of
optimization,
SDM is sensitive to the
initial shape. To address this, we integrate
SDM with procedures for
automatically adjusting both the number and locations of the
control points of the active spline curve. This leads to a
method
[Yang et al. 2004] that is more robust and applicable
than
SDM used alone.
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 |
Insert a control point to a quadratic B-spline |
Remove a control point
from a quadratic B-spline |
An example of control points
insertion
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|
Initial
cubic B-spline for an open curve |
After inserting 1
control point |
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 |
After
inserting 4 control points |
After inserting 7
control points |
Complex
examples
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