Matching 3D Fragments

(a) The matching result of top and bottom curves from the same knee cartilage
(b-c) The matching of these two curves with a curve from another knee cartilage.
(a)

(b)

(c)

(a) Sherds (b) Point cloud (c) Mesh (d) Extracted curves

Result obtained by (a) using explicit formula (b) using implicit formula with
ENO method to compute tangent angles’ derivatives (c) using implicit formula with geo-
metrical formulas to compute the tangent angles’ derivatives