NDLI: Probability-Based Rendering for View Synthesis

Content Provider	IEEE Xplore Digital Library
Author	Bumsub Ham Dongbo Min Changjae Oh Do, M.N. Kwanghoon Sohn
Copyright Year	1992
Abstract	In this paper, a probability-based rendering (PBR) method is described for reconstructing an intermediate view with a steady-state matching probability (SSMP) density function. Conventionally, given multiple reference images, the intermediate view is synthesized via the depth image-based rendering technique in which geometric information (e.g., depth) is explicitly leveraged, thus leading to serious rendering artifacts on the synthesized view even with small depth errors. We address this problem by formulating the rendering process as an image fusion in which the textures of all probable matching points are adaptively blended with the SSMP representing the likelihood that points among the input reference images are matched. The PBR hence becomes more robust against depth estimation errors than existing view synthesis approaches. The MP in the steady-state, SSMP, is inferred for each pixel via the random walk with restart (RWR). The RWR always guarantees visually consistent MP, as opposed to conventional optimization schemes (e.g., diffusion or filtering-based approaches), the accuracy of which heavily depends on parameters used. Experimental results demonstrate the superiority of the PBR over the existing view synthesis approaches both qualitatively and quantitatively. Especially, the PBR is effective in suppressing flicker artifacts of virtual video rendering although no temporal aspect is considered. Moreover, it is shown that the depth map itself calculated from our RWR-based method (by simply choosing the most probable matching point) is also comparable with that of the state-of-the-art local stereo matching methods.
Sponsorship	IEEE Signal Processing Society
Starting Page	870
Ending Page	884
Page Count	15
File Size	9386672
File Format	PDF
ISSN	10577149
Volume Number	23
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rendering (computer graphics) Steady-state Three-dimensional displays Cameras Probabilistic logic Image fusion Accuracy random walk with restart (RWR) Image-based rendering (IBR) view interpolation correspondence matching image fusion
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Software

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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