Publication statistics

Pub. period:2002-2005
Pub. count:4
Number of co-authors:6


Number of publications with 3 favourite co-authors:

Siavash Zokai:
Yakup Genc:
Nassir Navab:



Productive colleagues

Enylton Machado Coelho's 3 most productive colleagues in number of publications:

Blair MacIntyre:43
Nassir Navab:25
Simon Julier:17

Upcoming Courses

go to course
Quality Web Communication: The Beginner's Guide
go to course
UI Design Patterns for Successful Software
91% booked. Starts in 4 days

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !


Our Latest Books

The Social Design of Technical Systems: Building technologies for communities. 2nd Edition
by Brian Whitworth and Adnan Ahmad
start reading
Gamification at Work: Designing Engaging Business Software
by Janaki Mythily Kumar and Mario Herger
start reading
The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad
start reading
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam
start reading

Enylton Machado Coelho


Publications by Enylton Machado Coelho (bibliography)

 what's this?
Edit | Del

Coelho, Enylton Machado, MacIntyre, Blair and Julier, Simon J. (2005): Supporting interaction in augmented reality in the presence of uncertain spatial knowledge. In: Proceedings of the 2005 ACM Symposium on User Interface Software and Technology 2005. pp. 111-114.

A significant problem encountered when building Augmented Reality (AR) systems is that all spatial knowledge about the world has uncertainty associated with it. This uncertainty manifests itself as registration errors between the graphics and the physical world, and ambiguity in user interaction. In this paper, we show how estimates of the registration error can be leveraged to support predictable selection in the presence of uncertain 3D knowledge. These ideas are demonstrated in osgAR, an extension to OpenSceneGraph with explicit support for uncertainty in the 3D transformations. The osgAR runtime propagates this uncertainty throughout the scene graph to compute robust estimates of the probable location of all entities in the system from the user\'s viewpoint, in real-time. We discuss the implementation of selection in osgAR, and the issues that must be addressed when creating interaction techniques in such a system.

© All rights reserved Coelho et al. and/or ACM Press

Edit | Del

Coelho, Enylton Machado, MacIntyre, Blair and Julier, Simon (2004): OSGAR: A Scene Graph with Uncertain Transformations. In: 3rd IEEE and ACM International Symposium on Mixed and Augmented Reality ISMAR 2004 2-5 November, 2004, Arlington, VA, USA. pp. 6-15.

Edit | Del

Navab, Nassir, Zokai, Siavash, Genc, Yakup and Coelho, Enylton Machado (2004): An On-line Evaluation System for Optical See-through Augmented Reality. In: IEEE Virtual Reality Conference 2004 VR 2004 27-31 March, 2004, Chicago, IL, USA. pp. 245-246.

Edit | Del

MacIntyre, Blair, Coelho, Enylton Machado and Julier, Simon (2002): Estimating and Adapting to Registration Errors in Augmented Reality Systems. In: VR 2002 2002. pp. 73-80.

Add publication
Show list on your website

Join our community and advance:




Join our community!

Page Information

Page maintainer: The Editorial Team