A distributed virtual director for an interactive event broadcast system
Proceedings of the 6th ACM International Conference on Distributed Event-Based Systems
Adaptive key frame extraction for video summarization using an aggregation mechanism
Journal of Visual Communication and Image Representation
Efficient visual attention based framework for extracting key frames from videos
Image Communication
Virtual director technology for social video communication and live event broadcast production
Proceedings of the 21st ACM international conference on Multimedia
Camera selection for tracking in distributed smart camera networks
ACM Transactions on Sensor Networks (TOSN)
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Democratic and personalized production of multimedia content is a challenge that content providers will have to face in the near future. In this paper, we address this challenge by building on computer vision tools to automate the collection and distribution of audiovisual content. Especially, we proposed a complete production process of personalized video summaries in a typical application scenario, where the sensor network for media acquisition is composed of multiple cameras, which, for example, cover a basketball field. Distributed analysis and interpretation of the scene are exploited to decide what to show or not to show about the event, so as to produce a video composed of a valuable subset of the streams provided by each individual camera. Interestingly, the selection of the streams subsets to forward to each user depends on his/her individual preferences, making the process adaptive and personalized. The process involves numerous integrated technologies and methodologies, including but not limited to automatic scene analysis, camera viewpoint selection, adaptive streaming, and generation of summaries through automatic organization of stories. The proposed technology provides practical solutions to a wide range of applications, such as personalized access to local sport events through a web portal, cost-effective and fully automated production of content dedicated to small-audience, or even automatic log in of annotations.