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This paper presents the usability evaluation results of Mix It, a test bed for authoring in Mixed Reality Environments. While augmented and mixed reality interfaces have been around for a few years, considerable work needs to be done in usability assessment of novel interaction techniques for augmented environments. We have conducted usability evaluations(More)
The DRM interoperability problem is a very complex problem. Even big software companies have already admitted that DRM as it is today is too complex – complex for end-users, complex for content providers and complex for content handling devices manufactures. There are different approaches to deal with this problem and there are different levels to address(More)
One of the most important trends in the present day computing model is the service oriented approach to the distribution of applications and services over the Internet. The paradigm model behind the Service Oriented Architecture (SOA) encompasses the possibility to potentially have completely heterogeneous application architecture in which each of the(More)
Human Activity Recognition (HAR) is an interdisciplinary research area that has been attracting interest from several research communities specialized in machine learning, computer vision, medical and gaming research. The potential applications range from surveillance systems, human computer interfaces, sports video analysis, digital shopping assistants,(More)
This paper presents the main characteristics of the traditional Pinscreen, the way it works, its problems and results achieved. The first Digital Pinscreen system is presented, along with its main characteristics and limitations. The rest of the paper describes and presents the DigitalPinDirector: a system that enables a full and true creative access to the(More)
Acknowledgment This thesis is the product of research that was carried out at the Eindhoven University of Technology in the period ranging from October 2004 to August 2008. I find great pleasure in expressing my gratitude to the people who have contributed to this work. I would like to start by thanking my promotor prof.dr. (Bob) Mattheij for offering me(More)