With the rapid growth of multimedia applications and services, the evolution has changed from the static system-centric multimedia communications to the dynamic human-centric multimedia communications. Nowadays, users not only consume multimedia content but also contribute through producing, sharing, and interaction. The research and development of multimedia technologies have led to many innovations by prompting traditional 2D video broadcasting to interactive 3D TV/FTV, standard resolution digital video broadcasting to immersive multimedia entertainment, low-quality video conferencing to high-end telepresence, traditional audio-video study to advanced haptic-audio-visualframework,etc. The advanced applications not only require overcoming challenges of system-level services but also enhancing user experience.