Comments Off on Socializing the Semantic Gap: A Survey on Image Tagging and Retrieval

By lambertoballan, March 20, 2016

Everything you wanted to know about image tagging, tag refinement and social image retrieval. Our paper has been (finally) accepted to ACM Computing Surveys! This is a titanic effort, by Xirong Li, Tiberio Uricchio, myself, Marco Bertini, Cees Snoek and Alberto Del Bimbo, to structure the growing literature in the field, understand the ingredients of the main works, clarify their connections and difference, and recognize their merits and limitations.

A pre-print is available on arXiv and the source code is on GitHub.

Comments Off on Event detection and recognition for semantic annotation of video: a survey

By lambertoballan, November 23, 2010

Our paper “Event detection and recognition for semantic annotation of video” was accepted for publication by Springer International Journal of Multimedia Tools and Applications (MTAP) in the special issue “Survey papers in Multimedia by World Experts”. The paper is available online now (see publications) and it is also available on SpringerLink (DOI).

In this paper we survey the field of event recognition, from interest point detectors and descriptors, to event modelling techniques and knowledge management technologies. We provide an overview of the methods, categorising them according to video production methods and video domains, and according to types of events and actions that are typical of these domains.