With the new hardware capabilities of mobile phones, equipped with a camera, it is possible to offer this new form of interaction to any user with a mobile phone. AR Sagrada Familia shows users additional information about the real world. The application will show them the final appearance of the church by simply pointing the device's camera at it. It also displays information about the completed areas as it if was a tourist guide.

The main aim of this project is to develop a mobile phone application that, based on AR technology, is able to augment the view that users have of the Sagrada Familia. This augmentation is focused on two options: 3D models of uncompleted areas or information about completed areas, both over real image captured with a phone camera. It does not only capture, process a photo and send it back as a MMS; it also augments it in real time, reacting to the user’s movements. This goal poses many challenges, even for its development on a conventional computer, with more processing power than a mobile phone. Therefore, it will be necessary to find a solution to the problem of tracking and correct display and to optimise the application so that it can work on a mobile phone.

Users will be able to download the application online, as a service provided by the operator Orange. Then, users just need to point their phones at the Sagrada Familia to visualise new information, always properly combined with the image captured by the mobile phone camera.

This application combines a skyline-based motion capture algorithm with a visualization algorithm that performs a proper occlusion between the areas completed and the 3D model of the areas that are yet to be completed.

Orange R&D Spain