Abstract
An overview of 3D and free viewpoint video is given in this paper with special focus on related standardization activities in MPEG. Free viewpoint video allows the user to freely navigate within real world visual scenes, as known from virtual worlds in computer graphics. Suitable 3D scene representation formats are classified and the processing chain is explained. Examples are shown for image-based and model-based free viewpoint video systems, highlighting standards conform realization using MPEG-4. Then the principles of 3D video are introduced providing the user with a 3D depth impression of the observed scene. Example systems are described again focusing on their realization based on MPEG-4. Finally multi-view video coding is described as a key component for 3D and free viewpoint video systems. MPEG is currently working on a new standard for multi-view video coding. The conclusion is that the necessary technology including standard media formats for 3D and free viewpoint is available or will be available in the near future, and that there is a clear demand from industry and user side for such applications. 3DTV at home and free viewpoint video on DVD will be available soon, and will create huge new markets.
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