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Displaying 1-14 out of 14 total
Video Annotation and Retrieval Using Ontologies and Rule Learning
Found in: IEEE Multimedia
By Lamberto Ballan, Marco Bertini, Alberto Del Bimbo, Giuseppe Serra
Issue Date:October 2010
pp. 80-88
<p>An approach for automatic annotation and retrieval of video content uses semantic concept classifiers and ontologies to permit expanded queries to synonyms and concept specializations.</p>
 
Dynamic Pictorially Enriched Ontologies for Digital Video Libraries
Found in: IEEE Multimedia
By Marco Bertini, Alberto Del Bimbo, Giuseppe Serra, Carlo Torniai, Rita Cucchiara, Costantino Grana, Roberto Vezzani
Issue Date:April 2009
pp. 42-51
<p>This article presents a framework for automatic semantic annotation of video streams with an ontology that includes concepts expressed using linguistic terms and visual data.</p>
 
Action Categorization in Soccer Videos Using String Kernels
Found in: Content-Based Multimedia Indexing, International Workshop on
By Lamberto Ballan, Marco Bertini, Alberto Del Bimbo, Giuseppe Serra
Issue Date:June 2009
pp. 13-18
Action recognition is a crucial task to provide high-level semantic description of the video content, particularly in the case of sports videos. The bag-of-words (BoW) approach has proven to be successful for the categorization of objects and scenes in ima...
 
Accurate self-calibration of two cameras by observations of a moving person on a ground plane
Found in: Advanced Video and Signal Based Surveillance, IEEE Conference on
By Tsuhan Chen, Alberto Del Bimbo, Federico Pernici, Giuseppe Serra
Issue Date:September 2007
pp. 129-134
A calibration algorithm of two cameras using observations of a moving person is presented. Similar methods have been proposed for self-calibration with a single camera, but internal parameter estimation is only limited to the focal length. Recently it has ...
 
Semantic annotation and retrieval of video events using multimedia ontologies
Found in: International Conference on Semantic Computing
By Andrew D. Bagdanov, Marco Bertini, Alberto Del Bimbo, Giuseppe Serra, Carlo Torniai
Issue Date:September 2007
pp. 713-720
Effective usage of multimedia digital libraries has to deal with the problem of building efficient content annotation and retrieval tools. In this paper Multimedia Ontologies, that include both linguistic and dynamic visual ontologies, are presented and th...
 
Modeling local descriptors with multivariate gaussians for object and scene recognition
Found in: Proceedings of the 21st ACM international conference on Multimedia (MM '13)
By Rita Cucchiara, Costantino Grana, Giuseppe Serra, Marco Manfredi
Issue Date:October 2013
pp. 709-712
Common techniques represent images by quantizing local descriptors and summarizing their distribution in a histogram. In this paper we propose to employ a parametric description and compare its capabilities to histogram based approaches. We use the multiva...
     
Hand segmentation for gesture recognition in EGO-vision
Found in: Proceedings of the 3rd ACM international workshop on Interactive multimedia on mobile & portable devices (IMMPD '13)
By Giuseppe Serra, Lorenzo Baraldi, Marco Camurri, Michela Benedetti, Rita Cucchiara
Issue Date:October 2013
pp. 31-36
Portable devices for first-person camera views will play a central role in future interactive systems. One necessary step for feasible human-computer guided activities is gesture recognition, preceded by a reliable hand segmentation from egocentric vision....
     
Enriching and localizing semantic tags in internet videos
Found in: Proceedings of the 19th ACM international conference on Multimedia (MM '11)
By Alberto Del Bimbo, Giuseppe Serra, Lamberto Ballan, Marco Bertini
Issue Date:November 2011
pp. 1541-1544
Tagging of multimedia content is becoming more and more widespread as web 2.0 sites, like Flickr and Facebook for images, YouTube and Vimeo for videos, have popularized tagging functionalities among their users. These user-generated tags are used to retrie...
     
Tag suggestion and localization in user-generated videos based on social knowledge
Found in: Proceedings of second ACM SIGMM workshop on Social media (WSM '10)
By Alberto Del Bimbo, Giuseppe Serra, Lamberto Ballan, Marco Bertini, Marco Meoni
Issue Date:October 2010
pp. 3-8
Nowadays, almost any web site that provides means for sharing user-generated multimedia content, like Flickr, Facebook, YouTube and Vimeo, has tagging functionalities to let users annotate the material that they want to share. The tags are then used to ret...
     
Web-based semantic browsing of video collections using multimedia ontologies
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Andrea Ferracani, Gianpaolo D'Amico, Giuseppe Serra, Marco Bertini, Marco Meoni
Issue Date:October 2010
pp. 1629-1632
In this technical demonstration we present a novel web-based tool that allows a user friendly semantic browsing of video collections, based on ontologies, concepts, concept relations and concept clouds. The system is developed as a Rich Internet Applicatio...
     
Sirio, orione and pan: an integrated web system for ontology-based video search and annotation
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Andrea Ferracani, Gianpaolo D'Amico, Giuseppe Serra, Marco Bertini, Marco Meoni
Issue Date:October 2010
pp. 1625-1628
In this technical demonstration we show an integrated web system for video search and annotation based on ontologies. The system is composed by three components: the Orione ontology-based search engine, the Sirio\footnote{Sirio was the hound of Orione. It ...
     
Sirio: an ontology-based web search engine for videos
Found in: Proceedings of the seventeen ACM international conference on Multimedia (MM '09)
By Alberto Del Bimbo, Andrea Ferracani, Federico Pernici, Gianpaolo D'Amico, Giuseppe Serra, Marco Bertini, Thomas Alisi
Issue Date:October 2009
pp. 967-968
In this technical demonstration we show a web video search engine based on ontologies, the Sirio system, that has been developed within the EU VidiVideo project. The goal of the system is to provide a search engine for videos for both technical and non-tec...
     
Arneb: a rich internet application for ground truth annotation of videos
Found in: Proceedings of the seventeen ACM international conference on Multimedia (MM '09)
By Alberto Del Bimbo, Andrea Ferracani, Federico Pernici, Gianpaolo D'Amico, Giuseppe Serra, Marco Bertini, Thomas Alisi
Issue Date:October 2009
pp. 965-966
In this technical demonstration we show the current version of Arneb, a web-based system for manual annotation of videos, developed within the EU VidiVideo project. This tool has been developed with the aim of creating ground truth annotations, that can be...
     
Learning ontology rules for semantic video annotation
Found in: Proceeding of the 2nd ACM workshop on Multimedia semantics (MS '08)
By Alberto Del Bimbo, Giuseppe Serra, Marco Bertini
Issue Date:October 2008
pp. 1-1
Semantic video annotation using ontologies has received a large attention from the scientific community in the recent years. Ontologies are being regarded as an appropriate tool to bridge the semantic gap. In this paper we present an overview of the state-...
     
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