Watershed Algorithm for Moving Object Extraction Including Energy Minimization by Snakes

Abstract

Extraction of semantic video objects is an indispensable tool that benefits newly developed video description schemes. In the present paper, we propose a technique that extracts the shape of moving object by combining snakes and watershed algorithm. The proposed method comprises two steps. In the first step, snakes extract contours of moving objects as a result of the minimization of an energy function. In the second step, the conditional watershed algorithm extracts contours from a topographical surface including a new function term.