The computer for the 21st century
ACM SIGMOBILE Mobile Computing and Communications Review - Special issue dedicated to Mark Weiser
The Everywhere Displays Projector: A Device to Create Ubiquitous Graphical Interfaces
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Visual tracking of bare fingers for interactive surfaces
Proceedings of the 17th annual ACM symposium on User interface software and technology
The Factor Structure of the System Usability Scale
HCD 09 Proceedings of the 1st International Conference on Human Centered Design: Held as Part of HCI International 2009
Augmenting on-screen instructions with micro-projected guides: when it works, and when it fails
Proceedings of the 12th ACM international conference on Ubiquitous computing
Proceedings of the 4th ACM SIGCHI symposium on Engineering interactive computing systems
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
LightBeam: interacting with augmented real-world objects in pico projections
Proceedings of the 11th International Conference on Mobile and Ubiquitous Multimedia
Assistive systems in production environments: exploring motion recognition and gamification
Proceedings of the 5th International Conference on PErvasive Technologies Related to Assistive Environments
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Interactive projections have been around for more than a decade. We measured their potentials for augmented workplaces in production. For this purpose we built the prototype of an assistive system projecting instructions directly into the workspace (in situ). While it can be applied in every production environment, the system was first implemented and tested where it is needed the most: in a sheltered work organization employing persons with impairments. It could be shown that the assembly times could be slightly reduced by the augmented system. However it had a "catalytic" effect on the test subjects' work quality: While some seem to be overwhelmed by the new information density and perform worse, others perform much better than the control group and significantly reduce error rates. The qualitative results show that although impaired persons retain a critical perspective on systems directly changing the way they have been working for years, all users would like to retry working with the system. When looking at additional aids like the projection of a real-sized model in the workspace, the users invariantly accept its benefits for their assembly work.