Giró-i-Nieto X, Marqués F. Semantic Entity Detection Using Description Graphs. In Digital Media Processing for Multimedia Interactive Services. Singapore: World Scientific Publishing Co.; 2003. pp. 39–42.  (516.62 KB)


This paper presents a technique for the detection of Semantic Entities (SEs) in multimedia content. A definition of a SE in terms of lower-level SEs and their Relations (Rs) is proposed using Description Graphs (DGs). By analyzing the a/v information, an instance DG is built to be compared with a model DG of the SE. As a result, a confidence value is computed to express how well the SE is represented in the content. Examples of the use of this approach are presented in two different applications: detection of frontal faces and recognition of clusters of islands.