NDLI: Presence and discernability in conventional and non-photorealistic immersive augmented reality

Content Provider	IEEE Xplore Digital Library
Author	Steptoe, W. Julier, S. Steed, A.
Copyright Year	2014
Description	Author affiliation: Dept. of Comput. Sci., Univ. Coll. London, London, UK (Steptoe, W.; Julier, S.; Steed, A.)
Abstract	Non-photorealistic rendering (NPR) has been shown as a powerful way to enhance both visual coherence and immersion in augmented reality (AR). However, it has only been evaluated in idealized pre-rendered scenarios with handheld AR devices. In this paper we investigate the use of NPR in an immersive, stereoscopic, wide field-of-view head-mounted video see-through AR display. This is a demanding scenario, which introduces many real-world effects including latency, tracking failures, optical artifacts and mismatches in lighting. We present the AR-Rift, a low-cost video see-through AR system using an Oculus Rift and consumer webcams. We investigate the themes of consistency and immersion as measures of psychophysical non-mediation. An experiment measures discernability and presence in three visual modes: conventional (unprocessed video and graphics), stylized (edge-enhancement) and virtualized (edge-enhancement and color extraction). The stylized mode results in chance-level discernability judgments, indicating successful integration of virtual content to form a visually coherent scene. Conventional and virutalized rendering bias judgments towards correct or incorrect respectively. Presence as it may apply to immersive AR, and which, measured both behaviorally and subjectively, is seen to be similarly high over all three conditions.
Sponsorship	IEEE Vis.Graph.Tech.Comm.
Starting Page	213
Ending Page	218
File Size	8788852
Page Count	6
File Format	PDF
ISBN	9781479961849
DOI	10.1109/ISMAR.2014.6948430
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-10
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rendering (computer graphics) Accuracy Visualization Image edge detection Cameras Tracking Real-time systems [I.3.7] Computer Graphics — Three-Dimensional Graphics and RealismColor, shading, shadowing, texture H.5.1 [Information Interfaces and PresentationMultimedia Information Systems]: Artificial, augmented, virtual realities
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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