Automatic image annotation using visual content and folksonomies

Autor: Georg Thallinger, Viktoria Pammer, Roland Mörzinger, Stefanie Lindstaedt, Robert Sorschag
Rok vydání: 2008
Předmět:
Zdroj: Multimedia Tools and Applications. 42:97-113
ISSN: 1573-7721
1380-7501
DOI: 10.1007/s11042-008-0247-7
Popis: Automatic image annotation is an important and challenging task, and becomes increasingly necessary when managing large image collections. This paper describes techniques for automatic image annotation that take advantage of collaboratively annotated image databases, so called visual folksonomies. Our approach applies two techniques based on image analysis: First, classification annotates images with a controlled vocabulary and second tag propagation along visually similar images. The latter propagates user generated, folksonomic annotations and is therefore capable of dealing with an unlimited vocabulary. Experiments with a pool of Flickr images demonstrate the high accuracy and efficiency of the proposed methods in the task of automatic image annotation. Both techniques were applied in the prototypical tag recommender "tagr".
Databáze: OpenAIRE