Editorial of the Special Issue on Emerging Techniques in 3D: 3D Data Fusion, Motion Tracking in Multi-View Video, 3DTV Archives and 3D Content Protection

As a result of increasing consumer demand for 3D content, content creation associated with this new modality has increased significantly in conjunction with some recent standardization activities on this data type. Hence, a scientific revisit is required particularly to some challenging problems associated with the conventional video, considering the fact that multi-view video has many promising solutions to such problems. Moreover, any 3D representation also produces its own requirements to be dealt with. This special issue is an effort to compile and review the current advances in 3D multimedia and multimodal information analysis and processing. Particularly, it deals with emerging 3D techniques for 3D data integration and object analysis based on multi-views, as well as 3D content protection.