A flexible wavelet-based scalable video coding framework (W-SVC) is proposed to support future media internet, specifically content delivery to different display terminals through heterogeneous networks as the Future Internet. Scalable video bit-stream can easily be adapted to required spatio-temporal resolution and quality, according to the transmission and user context requirements. This enables content adaptation and interoperability in Internet networking environment. Adaptation of the bit-stream is performed in the compressed domain, by discarding the bit-stream portions that represent higher spatio-temporal resolution and/or quality than the desired. Thus, the adaptation is of very low complexity. Furthermore, the embedded structure of a scalable bit-stream provides a natural solution for protection of the video against transmission errors inherent to content transmission over Internet. The practical capabilities of the W-SVC are demonstrated by using the error resilient transmission and surveillance applications. The experimental result shows that the W-SVC framework provides effusive flexible architecture with respect to different application in future media internet.
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