HbbTV (Hybrid Broadcast Broadband TV)
Multiple-User Environment

In the area of catering for multiple users, the HBB-NEXT Service Personalization Engine will be developed. It will provide multi-user content recommendations, multimodal interaction and content awareness. The concept foresees a front-end functionality with a multi-modal user interface for a multi-user environment and a back-end providing context-aware multi-user content recommendations.

Multimodal interfaces promise to allow users to enter requests and information using any of input modes such as a mouse, keyboard, handwriting, speech, and gestures. Speech and gestures are great candidates to fulfil many operation tasks which have been previously possible only by using controller. Multi-speaker identification aims to identify more speakers based on a recorded signal that may contain utterances of more individual.

Using multilevel authentication the user can be authenticated by face (2D, 3D, Iris), speech, gestures and not only by using personal code (pin code, password, etc.). 3D face detection has more possibilities than 2D detection. In 3D detection face curves are very important as the technology is virtually "touching your face". It is far more difficult to cheat the 3D technology.