Binary trademark retrieval using shape and spatial feature

Abstract

In this paper, trademark is regarded as a combination of several geometric regions which have sharp edges. To retrieve such a combination, a method based on its member regions' shape and spatial features is proposed. Since the way considers the shape feature adn spatial relationship at the same time, so it can ensure the consistency in both the local and whole sides. Compared with the method of only using shape feature to retrieve the trademark, the results of experimentshow this way has higher precision and the output accords with people's visual feeling better.