Conference Proceeding

An adaptive color marker for Spatial Augmented Reality environments and visual feedback.

01/2011; DOI:10.1109/VR.2011.5759502 In proceeding of: IEEE Virtual Reality Conference, VR 2011, Singapore, 19-23 March 2011
Source: DBLP

ABSTRACT This demonstration presents an adaptive visual marker optimised to improve tracking performance in Spatial Augmented Reality environments. The adaptive marker uses a color light sensor to capture the projected light color from a SAR system. The color information is used to select the optimal tracking color that is displayed on a diffused Red, Green, Blue Light Emitting Diode marker attached to a user’s finger. We have selected to use the visible light spectrum for the marker since it can be leveraged to present visual feedback to support user interface interactions in addition to the tracking system operation. Our initial results have shown a performance improvement compared to a fixed color passive marker. Index Terms: H.5.2 [Information interfaces and Presentation]: Graphical User interfaces—Input Devices and Strategies; I.3.6 [Computer Graphics]: Methodology and Techniques—Interaction Techniques

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    ABSTRACT: Digital Foam is a new input sensor developed to support clay like sculpting and modeling operations. We present techniques facilitat- ing navigation and manipulation operations performed using Spher- ical Digital Foam as a sole input device. Our free-form sculpting technique allows manipulation of new and existing 3D models us- ing accumulated sculpting like motions. Digital Foam's multi-point pressure sensitive surface captures the separate locations of a user's fingertips allowing controlled manipulation of multiple model ver- tices simultaneously. Additionally, we developed a technique that allows the camera view and zoom to be controlled by applying vary- ing pressure to the Digital Foam surface. Furthermore, we have designed a menu system tailored for operation using Spherical Dig- ital Foam as a sole input device using both the internal orientation sensor and the pressure sensitive surface. A new higher resolution Spherical Digital Foam input device with 162 unique pressure sensors is presented. This is a significant im- provement in comparison to the previous Spherical Digital Foam version with only 21 sensors. We discuss the design issues and how an increased resolution affects the operation and design of the algorithms used. We propose a new dynamic button allocation tech- nique made possible using the new high resolution Spherical Digital Foam. Finally, we performed a trial study using the new 162 sen- sor Spherical Digital Foam input device to evaluate elements of the menu system.
    Proceedings of the ACM Symposium on Virtual Reality Software and Technology, VRST 2008, Bordeaux, France, October 27-29, 2008; 01/2008

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