A Survey of suboptimal polygonal approximation methods

Polygonal approximation detects a set of feature points on the boundary of a shape that constitute the vertices of the shape. In particular, shape representation by polygonal approximation has become a popular technique due to its easiness, locality and compression. This paper presents a survey of methods that detects a set of dominant points that constitute the boundary of a 2D digital planar curve with an iterative procedure and a comparison of the polygonal approximation algorithms on various shapes with varying number of dominant points is made along with the demerits of each of the techniques