SnapAR: Quick Viewpoint Switching for Hand-Held Augmented Reality Using Virtual Snapshots





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Published on Feb 27, 2013

This video presents research performed by Mengu Sukan, Steven Feiner, Barbara Tversky, and Semih Energin at Columbia University's Computer Graphics and User Interfaces Lab (http://graphics.cs.columbia.edu/top.html).

SnapAR is a magic-lens-based hand-held augmented reality application that allows its user to store snapshots of a scene and revisit them virtually at a later time. By storing a still image of the unaugmented background along with the 6DOF camera pose, this approach allows augmentations to remain dynamic and interactive. This makes it possible for the user to quickly switch between vantage points at different locations from which to view and manipulate virtual objects, without the overhead of physically traveling between those locations. This video includes footage from a user study that compares performance in snapshot and live mode conditions in a task in which a virtual object must be aligned with two pairs of physical objects. Proper alignment requires sequentially visiting two viewpoints. Participants completed the alignment task significantly faster and more accurately using snapshots than when using the live mode. Moreover, participants preferred manipulating virtual objects using snapshots to the live mode.

This research was supported in part by NSF Grants IIS-0905569, IIS-0905417, and IIS-0855995, as well as a gift from VTT. Any opinions, findings, conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the official views, opinions, or policy of the National Science Foundation (NSF) or any other sponsor.

Related work was presented as a full paper at IEEE ISMAR 2012 (http://www.ismar.net), a poster at IEEE 3DUI 2012 (recipient of the Best Poster Award), a demo at ACM CHI Interactivity 2012, and another poster in IEEE ISMAR 2010. For further information, please see Mengu Sukan, Steven Feiner, Barbara Tversky, and Semih Energin, "Quick viewpoint switching for manipulating virtual objects in hand-held augmented reality using stored snapshots," IEEE International Symposium on Mixed and Augmented Reality (ISMAR), Atlanta, GA, November 5-8, 2012, pp.217-226,(http://dx.doi.org/10.1109/ISMAR.2012....).


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