Towards Indistinguishable Augmented Reality: A Survey on Optical See-through Head-mounted Displays

Adding virtual information that is indistinguishable from reality has been a long-awaited goal in Augmented Reality (AR). While already demonstrated in the 1960s, only recently have Optical See-Through Head-Mounted Displays (OST-HMDs) seen a reemergence, partially thanks to large investments from in...

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Bibliographic Details
Published in:	ACM computing surveys 2022-07, Vol.54 (6), p.1-36
Main Authors:	Itoh, Yuta, Langlotz, Tobias, Sutton, Jonathan, Plopski, Alexander
Format:	Article
Language:	eng
Subjects:	Augmented reality Displays Helmet mounted displays Realism State-of-the-art reviews Visual perception
Online Access:	Get full text
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Summary:	Adding virtual information that is indistinguishable from reality has been a long-awaited goal in Augmented Reality (AR). While already demonstrated in the 1960s, only recently have Optical See-Through Head-Mounted Displays (OST-HMDs) seen a reemergence, partially thanks to large investments from industry, and are now considered to be the ultimate hardware for augmenting our visual perception. In this article, we provide a thorough review of state-of-the-art OST-HMD-related techniques that are relevant to realize the aim of an AR interface almost indistinguishable from reality. In this work, we have an initial look at human perception to define requirements and goals for implementing such an interface. We follow up by identifying three key challenges for building an OST-HMD-based AR interface that is indistinguishable from reality: spatial realism, temporal realism, and visual realism. We discuss existing works that aim to overcome these challenges while also reflecting against the goal set by human perception. Finally, we give an outlook into promising research directions and expectations for the years to come.
ISSN:	0360-0300 1557-7341