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Roberto Gerson de Albuquerque Azevedo
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 38
Citations - 202
Roberto Gerson de Albuquerque Azevedo is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: User interface & Video quality. The author has an hindex of 6, co-authored 37 publications receiving 149 citations. Previous affiliations of Roberto Gerson de Albuquerque Azevedo include École Normale Supérieure & Federal University of Maranhão.
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Bridging the Gap between Semantics and Multimedia Processing
Marcio Ferreira Moreno,Guilherme F. Lima,Rodrigo Costa Mesquita Santos,Roberto Gerson de Albuquerque Azevedo,Markus Endler +4 more
TL;DR: The semantic gap problem in multimedia is described in terms of a classical architecture for multimedia processing and a structured approach to bridge it is discussed, which combines machine learning and symbolic AI.
Proceedings ArticleDOI
The Fábulas Model for Authoring Web-based Children's eBooks
Hedvan Fernandes Pinto,Carlos de Salles Soares Neto,Sérgio Colcher,Roberto Gerson de Albuquerque Azevedo +3 more
TL;DR: This work proposes a model, named Fábulas - the Portuguese word for fables - that allows authors to create interactive multimedia children's eBooks declaratively, and presents a case study for the implementation of the model on the Web.
Proceedings ArticleDOI
Programming Multimedia Applications in GStreamer
TL;DR: This short course is an introduction to GStreamer, one of the main free/open-source frameworks for multimedia processing, and presents the various filters natively available in GStreamer and shows how one can extend the framework by creating a plugin with a custom filter that manipulates video samples.
Journal ArticleDOI
Quality-Constrained Encoding Optimization for Omnidirectional Video Streaming
TL;DR: Wang et al. as mentioned in this paper proposed a tile-level rate-distortion (R-D) model and determined the available tile bandwidth based on the previous viewers' statistics to improve the average quality of omnidirectional videos for users.
Proceedings ArticleDOI
A graphics composition architecture for multimedia applications based on layered-depth-image
TL;DR: A graphics architecture for the seamless integration of 3DV objects into ordinary 2D/3D multimedia applications based on layered-depth-image (LDI) and supports the real-time rendering of multiple views for multi-view 3D displays is presented.