Abstract

This paper presents a framework for joint adaptation of an audiovisual content and its metadata. The presentation of the audiovisual content and its metadata are balanced to fit the given screen size in a way that maximizes user experience in browsing the desired content. The adaptation process is modeled as an optimization problem of the total value of the content provided to the user. The total content value is maximized by jointly controlling the balance between video and metadata presentation, the adaptation way of the video content, and the quantity and quality of metadata to be presented considering the device screen size and the browsing preferences of the user. Experimental results show that this scheme enables users to browse audiovisual contents with their metadata optimized to the screen size of their devices. A demonstration using this scheme is available on http://itswww.epfl.ch/ eiji/umademo/

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