An Adaptive MPEG-4 Streaming System Based on Object Prioritisation

Streaming of video and multimedia content has generated a lot of interest, especially with the recent development of mobile devices with multimedia capabilities. However, ubiquitous multimedia systems face many challenges, such as varied and limited network performance and viewing device capabilities. Adaptive streaming systems are frequently used to reconcile these limitations, while also providing an acceptable level of perceptible quality to the end user. In this paper, we propose an adaptive streaming system that exploits the Video Object (VO) coding capabilities of MPEG-4 by applying priorities to the individual objects. By allowing the content provider to define prioritisation of objects, video adaptation can be customised based on the content.