Publication statistics

Pub. period:2007-2009
Pub. count:4
Number of co-authors:4


Number of publications with 3 favourite co-authors:

Frederic Vernier:
Bertrand Planes:
Christian Jacquemin:



Productive colleagues

Rami Ajaj's 3 most productive colleagues in number of publications:

Frederic Vernier:15
Christian Jacquemi..:13
Lauri Savioja:2

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Rami Ajaj


Publications by Rami Ajaj (bibliography)

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Ajaj, Rami, Vernier, Frederic and Jacquemin, Christian (2009): Navigation modes for combined table/screen 3D scene rendering. In: Proceedings of the 2009 ACM International Conference on Interactive Tabletops and Surfaces 2009. pp. 141-148.

This paper compares two navigation techniques for settings that combine a 2D table-top view and a 3D large wall display, both rendering the same 3D virtual scene. The two navigation techniques, called Camera Based (CB) and View Based (VB) strongly rely on the spatial relationships between both displays. In the CB technique, the 3D point of view displayed on the wall is controlled through a draggable icon on the 2D table-top view. The VB technique presents the same icon on the table-top view but statically located at the center and oriented toward the physical wall display while the user pans and rotates the whole scene around the icon. While CB offers a more consistent 2D view, VB reduces the user's mental rotations required to understand the relations between both views. We perform a comparative user study showing user's preference for VB technique while performances for complex tasks are better with the CB technique. Finally we discuss other aspects of such navigation techniques, such as the possibility of having more than one point of view, occlusion, and multiple users.

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Ajaj, Rami, Jacquemin, Christian and Vernier, Frederic (2009): RVDT: a design space for multiple input devices, multipleviews and multiple display surfaces combination. In: Proceedings of the 2009 International Conference on Multimodal Interfaces 2009. pp. 269-276.

We study interaction combination performed using a tabletop device, a mouse, and/or a six Degrees Of Freedom (DOF) input device in a systemcombining a 2Dflat (map-kind) view presented horizontally and a 3D perspective vertical view of the same virtual environment. The design of such a 2D/3D interface relies on the RVDT model and its design space that allow easy high-level combined interactions to achieve spatial tasks. RVDT integrates the relations between physical and numerical DOFs and applies to any graphical user interface in which multiple views, multiple display surfaces and multiple input devices are combined. The user study shows that experimented users prefer table-top/6DOF input device interaction combination with a maximal number of elementary tasks performed with both devices.

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Ajaj, Rami, Savioja, Lauri and Jacquemin, Christian (2008): Software platform for real-time room acoustic visualization. In: Feiner, Steven K., Thalmann, Daniel, Guitton, Pascal, Frohlich, Bernd, Kruijff, Ernst and Hachet, Martin (eds.) VRST 2008 - Proceedings of the ACM Symposium on Virtual Reality Software and Technology October 27-29, 2008, Bordeaux, France. pp. 247-248.

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Jacquemin, Christian, Planes, Bertrand and Ajaj, Rami (2007): Shadow casting for soft and engaging immersion in augmented virtuality artworks. In: Lienhart, Rainer, Prasad, Anand R., Hanjalic, Alan, Choi, Sunghyun, Bailey, Brian P. and Sebe, Nicu (eds.) Proceedings of the 15th International Conference on Multimedia 2007 September 24-29, 2007, Augsburg, Germany. pp. 477-480.

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