Voronoi Diagram of Polygonal Chains under the Discrete Fréchet Distance

Bereg, Sergey; Gavrilova, Marina; Zhu, Binhai

Voronoi Diagram of Polygonal Chains under the Discrete Fréchet Distance

Authors

Bereg, Sergey

Gavrilova, Marina

Zhu, Binhai

Description

Polygonal chains are fundamental objects in many applications like pattern recognition and protein structure alignment. A well-known measure to characterize the similarity of two polygonal chains is the famous Frèchet distance. In this paper, for the first time, we consider the Voronoi diagram of polygonal chains in $d$-dimension ($d=2,3$) under the discrete Frèchet distance. Given $n$ polygonal chains ${\cal C}$ in $d$-dimension ($d=2,3$), each with at most $k$ vertices, we prove fundamental properties of such a Voronoi diagram {\em VD}$_F({\cal C})$ by presenting the first known upper and lower bounds for {\em VD}$_F({\cal C})$.
13 pages, 2 figures