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Description
Today, the wide variety of devices in the digital world ranges from desktops to mobile phones. Within the currently available interactive multimedia applications, there are demands in terms of video quality and coding efficiency, the cost as well as scalability. That is why there is a need for scalable video coding schemes which provide fully progressive bit streams and supports scalability. Scalable Video Coding targets on seamless delivery of digital content and access to the same, enabling optimal user centered multi-channel and cross-platform media services, providing a straightforward solution for universal video delivery to a broad range of applications. Scalable video coding gives a nice way to perform rate shaping for video streams adapting to the available transmission resource. The work in this thesis deals with the overview and practical implementation of the H.264 Scalable Video Codec .All the major building blocks of H.264/SVC codec are discussed and implemented. Various kinds of Scalabilities and Error Concealment methods are achieved and comparative studies are performed. This thesis proposes and discusses Unequal Error Protection scheme in Scalable Video Coding. Unequal Error Protection method is an error resiliency scheme in which we protect the bit stream of the base and the enhancement layers based on priority levels. This priority information is based on the dependency, temporal, and quality scalabilities values. We have also provided an external protection to the bit stream in the form of Reed Solomon code. A detailed implementation of this scheme is done and results obtained through these simulations and video quality evaluation, are provided, showing the system performance under various network conditions.
