ITI-CERTH participation to TRECVID 2009 HLFE and Search.
Anastasia Moumtzidou, Anastasios Dimou, Paul King, Stefanos Vrochidis, Angeliki Angeletou, Vasileios Mezaris, Spiros Nikolopoulos, Ioannis Yiannis Kompatsiaris, Lambros Makris · 2009
This paper provides an overview of the tasks submitted to TRECVID 2009 by ITI-CERTH. ITI-CERTH participated in the high-level feature extraction task and the search task. In the high-level feature extraction task, techniques are developed that combine motion information with existing wellperforming descriptors such as SIFT and Bag-of-Words and the use of compressed video information to form a Bag-of-Words model for shot representation is studied. The search task is based on an interactive retrieval application combining retrieval functionalities in various modalities (i.e. textual, visual and concept search) with a user interface supporting interactive search over all queries submitted. Evaluation results on the submitted runs for this task provide interesting conclusions regarding the comparison of the involved retrieval functionalities as well as the strategies in interactive video search. 1