Bricks: laying the foundations for graspable user interfaces
CHI '95 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The metaDESK: models and prototypes for tangible user interfaces
Proceedings of the 10th annual ACM symposium on User interface software and technology
BUILD-IT: a planning tool for construction and design
CHI 98 Cconference Summary on Human Factors in Computing Systems
Exploring bimanual camera control and object manipulation in 3D graphics interfaces
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Physical and Virtual Tools: ActivityTheory Applied to the Design of Groupware
Computer Supported Cooperative Work
Navigation methods for an augmented reality system
CHI '00 Extended Abstracts on Human Factors in Computing Systems
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BUILD-IT is a planning tool based on computer vision technology, supporting complex planning and composition tasks. A group of people, seated around a table, interact with objects in a virtual scene using real bricks. A plan view of the scene is projected onto the table, where object manipulation takes place. A perspective view is projected on the wall. The views are set by virtual cameras, having spatial attributes like shift, rotation and zoom. However, planar interaction with bricks provides only position and rotation information. This paper explores two alternative methods to bridge the gap between planar interaction and three-dimensional navigation. An empirical evaluation of the two alternatives is in process.