Using negative shape features for logo similarity matching

Abstract

A method for representing and matching logos based on positive and negative shape features is presented. Negative shape features represent an object that consists of several components enclosed in a simple geometric structure (e.g, a square) based on its interior with the components considered as holes. The goal is to find logos in a database that are most similar to a given sample logo. A border is added around logos that are not enclosed in a simple shape. Logos are segmented. Local and global shape features are computed for each component. Two methods for comparing logos represented by positive and negative components are presented and evaluated. 1.